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Sample records for radiographic scoring system

  1. A critical appraisal of radiographic scoring systems for assessment of juvenile idiopathic arthritis

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    Doria, Andrea S.; Babyn, Paul S. [The Hospital for Sick Children, Department of Diagnostic Imaging, Toronto, Ontario (Canada); University of Toronto, Department of Medical Imaging, Toronto, Ontario (Canada); Feldman, Brian [The Hospital for Sick Children, Department of Rheumatology, Toronto, Ontario (Canada); University of Toronto, Department of Population Health Sciences, Toronto (Canada)

    2006-08-15

    Assessing structural damage to joints over time is essential for evaluating the effectiveness of therapeutic interventions for patients with inflammatory arthritis. Although radiography is able to quantify joint damage, the changes found with conventional radiography early in the disease course are nonspecific, and late radiographic changes are often irreversible. Although many clinical trials on drug development for children still use radiographic scales as endpoints for the study, more specific therapies have been developed for juvenile idiopathic arthritis (JIA) that would enable imaging to ''fine-tune'' patients to placement into specific treatment algorithms. As a result, new imaging scales to identify early abnormalities are clearly needed. Many pediatric rheumatology centers around the world persistently apply adult-designed radiographic scoring systems to evaluate the progression of JIA. Few pediatric-targeted radiographic scales are available for assessment of progression of JIA in growing joints, and the clinimetric and psychometric properties of such scales have been poorly investigated. We present a critique to the evaluative, discriminative, and predictive roles of the van der Heijde modification of Sharp's radiographic method, a scale originally designed to assess damage to joints of adults with rheumatoid arthritis, when it is applied to a pediatric population. We discuss the advantages and drawbacks of this radiographic scoring system for assessing growing joints and the ability of MRI to overcome inadequacies of conventional radiography. (orig.)

  2. Development of a simple reliable radiographic scoring system to aid the diagnosis of pulmonary tuberculosis.

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    Lancelot M Pinto

    Full Text Available RATIONALE: Chest radiography is sometimes the only method available for investigating patients with possible pulmonary tuberculosis (PTB with negative sputum smears. However, interpretation of chest radiographs in this context lacks specificity for PTB, is subjective and is neither standardized nor reproducible. Efforts to improve the interpretation of chest radiography are warranted. OBJECTIVES: To develop a scoring system to aid the diagnosis of PTB, using features recorded with the Chest Radiograph Reading and Recording System (CRRS. METHODS: Chest radiographs of outpatients with possible PTB, recruited over 3 years at clinics in South Africa were read by two independent readers using the CRRS method. Multivariate analysis was used to identify features significantly associated with culture-positive PTB. These were weighted and used to generate a score. RESULTS: 473 patients were included in the analysis. Large upper lobe opacities, cavities, unilateral pleural effusion and adenopathy were significantly associated with PTB, had high inter-reader reliability, and received 2, 2, 1 and 2 points, respectively in the final score. Using a cut-off of 2, scores below this threshold had a high negative predictive value (91.5%, 95%CI 87.1,94.7, but low positive predictive value (49.4%, 95%CI 42.9,55.9. Among the 382 TB suspects with negative sputum smears, 229 patients had scores <2; the score correctly ruled out active PTB in 214 of these patients (NPV 93.4%; 95%CI 89.4,96.3. The score had a suboptimal negative predictive value in HIV-infected patients (NPV 86.4, 95% CI 75,94. CONCLUSIONS: The proposed scoring system is simple, and reliably ruled out active PTB in smear-negative HIV-uninfected patients, thus potentially reducing the need for further tests in high burden settings. Validation studies are now required.

  3. Cervical degenerative index: a new quantitative radiographic scoring system for cervical spondylosis with interobserver and intraobserver reliability testing

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    Garvey, Timothy A.; Schwender, James D.; Denis, Francis; Perra, Joseph H.; Transfeldt, Ensor E.; Winter, Robert B.; Wroblewski, Jill M.

    2009-01-01

    Background The lack of a widely available scoring system for cervical degenerative spondylosis encouraged the authors to establish and validate a systematic quantitative radiographic index. Materials and methods This study included intraobserver and interobserver reliability testing among three reviewers with different years of experience. Each observer independently scored four cervical radiographs of 48 patients at separate intervals, and statistical analysis of the grading was performed. Results There was high intraobserver and interobserver reliability between the two experienced observers. There was fair reliability between the less experienced observer and the more experienced observers. Conclusions The cervical degenerative index appears to be a reliable and reproducible radiographic assessment of cervical spondylosis. The index will have direct applicability for longitudinal study of cervical spondylosis and may be clinically relevant as well. PMID:19384631

  4. A multicenter study analyzing the relationship of a standardized radiographic scoring system of adolescent idiopathic scoliosis and the Scoliosis Research Society outcomes instrument.

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    Wilson, Philip L; Newton, Peter O; Wenger, Dennis R; Haher, Thomas; Merola, Andrew; Lenke, Larry; Lowe, Thomas; Clements, David; Betz, Randy

    2002-09-15

    A multicenter study examining the association between radiographic and outcomes measures in adolescent idiopathic scoliosis. To evaluate the association between an objective radiographic scoring system and patient quality of life measures as determined by the Scoliosis Research Society outcomes instrument. Although surgical correction of scoliosis has been reported to be positively correlated with patient outcomes, studies to date have been unable to demonstrate an association between radiographic measures of deformity and outcomes measures in patients with adolescent idiopathic scoliosis. A standardized radiographic deformity scoring system and the Scoliosis Research Society outcome tool were used prospectively in seven scoliosis centers to collect data on patients with adolescent idiopathic scoliosis. A total of 354 data points for 265 patients consisting of those with nonoperative or preoperative curves >or=10 degrees, as well as those with surgically treated curves, were analyzed. Correlation analysis was performed to identify significant relationships between any of the radiographic measures, the Harms Study Group radiographic deformity scores (total, sagittal, coronal), and the seven Scoliosis Research Society outcome domains (Total Pain, General Self-Image, General Function, Activity, Postoperative Self-Image, Postoperative Function, and Satisfaction) as well as Scoliosis Research Society outcomes instrument total scores. Radiographic measures that were identified as significantly correlated with Scoliosis Research Society outcome scores were then entered into a stepwise regression analysis. The coronal measures of thoracic curve and lumbar curve magnitude were found to be significantly correlated with the Total Pain, General Self-Image, and total Scoliosis Research Society scores (P Society domain and total scores. No radiographic measures taken after surgery were significantly correlated with the postoperative domains of the Scoliosis Research Society

  5. High resolution CT in children with cystic fibrosis: correlation with pulmonary functions and radiographic scores

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    Demirkazik, Figen Basaran E-mail: demirkaz@dialup.ankara.edu.tr; Ariyuerek, O. Macit; Oezcelik, Ugur; Goecmen, Ayhan; Hassanabad, Hossein K.; Kiper, Nural

    2001-01-01

    Objective: To compare the high resolution CT (HRCT) scores of the Bhalla system with pulmonary function tests and radiographic and clinical points of the Shwachman-Kulczycki clinical scoring system. Methods: HRCT of the chest was obtained in 40 children to assess the role of HRCT in evaluating bronchopulmonary pathology in children with cystic fibrosis (CF). The HRCT severity scores of the Bhalla system were compared with chest radiographic and clinical points of the Shwachman-Kulczycki scoring system and pulmonary function tests. Only 14 of the patients older than 6 years cooperated with spirometry. Results: HRCT scores correlated well with radiographic points (r=0.80, P<0.0001) and clinical points (r=0.67, P<0.0001) of the Shwachman-Kulczycki system, FVC (r=0.71 P=0.004) and FEV{sub 1} (r=0.66, P=0.01). Although radiographic points correlated significantly with FVC (r=0.61, P=0.02) and FEV{sub 1} (r=0.56, P=0.04), HRCT provides a more precise scoring than the chest X-ray. Conclusion: The HRCT scoring system may provide a sensitive method of monitoring pulmonary disease status and may replace the radiographic scoring in the Shwachman-Kulczycki system. It may be helpful especially in follow-up of small children too young to cooperate with spirometry.

  6. Digital scoring of haemophilic arthropathy using radiographs is feasible

    NARCIS (Netherlands)

    Jansen, N. W. D.; Vincken, K. L.; Marijnissen, A. C. A.; Lundin, B.; Heijnen, L.; Roosendaal, G.; Pettersson, H.; Lafeber, F. P. J. G.

    2008-01-01

    Radiographs are important tools to evaluate structural changes in many Joint diseases. In the case of haemophilic arthropathy (HA), the Pettersson score is widely used. The rising of digital radiography enables evaluation of these changes in a more quantitative and detailed manner, potentially impro

  7. A practical MRI grading system for osteoarthritis of the knee: Association with Kellgren–Lawrence radiographic scores

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    Park, Hee-Jin, E-mail: parkhiji@gmail.com [Department of Radiology, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, #108 Pyung-dong, Jongno-gu, Seoul 110-746 (Korea, Republic of); Department of Radiology, Kangwon National University School of Medicine, Baengnyeong-ro 156, Chuncheon-Si, Gangwon-Do Kangwon National University Hospital 200-722 (Korea, Republic of); Kim, Sam Soo, E-mail: samskim@kangwon.ac.kr [Department of Radiology, Kangwon National University School of Medicine, Baengnyeong-ro 156, Chuncheon-Si, Gangwon-Do Kangwon National University Hospital 200-722 (Korea, Republic of); Lee, So-Yeon, E-mail: parkhiji@kwandong.ac.kr [Department of Radiology, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, #108 Pyung-dong, Jongno-gu, Seoul 110-746 (Korea, Republic of); Park, Noh-Hyuck, E-mail: nhpark904@kwandong.ac.kr [Department of Radiology, Myongji Hospital, Kwandong University, College of Medicine, 697-24 Hwajung-dong, Dukyang-ku, Koyang, Kyunggi 412-270 (Korea, Republic of); Park, Ji-Yeon, E-mail: zzzz3@hanmail.net [Department of Radiology, Myongji Hospital, Kwandong University, College of Medicine, 697-24 Hwajung-dong, Dukyang-ku, Koyang, Kyunggi 412-270 (Korea, Republic of); Choi, Yoon-Jung, E-mail: yoonchoi99@gmail.com [Department of Radiology, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, #108 Pyung-dong, Jongno-gu, Seoul 110-746 (Korea, Republic of); Jeon, Hyun-Jun, E-mail: ostrich-13@hanmail.net [Department of Occupational Medicine, Dongsan Medical Center, Keimyung University School of Medicine, 194 Dongsan-Dong, Jung-ku, Taegu (Korea, Republic of)

    2013-01-15

    Purpose: To propose a reproducible and constant MR grading system for osteoarthritis of the knee joint that provides high interobserver and intraoberver agreement and that does not require complicated calculation procedures. Materials and methods: This retrospective study sample included 44 men and 65 women who underwent both MRI and plain radiography of the knee at our institution. All patients were older than 50 years of age (mean 57.7) and had clinically suspected osteoarthritis of the knee. The standard of 4 grades on the MR grade scale was based mainly on cartilage injury and additional findings. Kellgren–Lawrence grades were assessed for the same patient group. The relationship between the results was determined. Statistical analyses were performed including kappa statistics, categorical regression analysis and nonparametric correlation analysis. Results: The interobserver and intraoberver agreements between the two readers in the grading of osteoarthritis were found to be almost perfect. Interobserver and intraobserver agreements were slightly lower for the MR grading system than for the Kellgren–Lawrence grading scale. The correlation between the MR grade and Kellgren–Lawrence grade was very high and did not differ with patient age. The MR grades were highly correlated with the Kellgren–Lawrence grades and showed excellent interobserver and intraobserver agreements. Conclusion: This new MR grading system for osteoarthritis of the knee joint is reproducible and may be helpful for the grading of osteoarthritis of the knee without requiring reference to plain radiography.

  8. Radiographic condition in a digital system

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    Higashida, Yoshiharu (Kumamoto Univ. (Japan). Coll. of Medical Science)

    1993-12-01

    This paper deals with the optimum radiographic condition in digital radiographic systems. Radiographic conditions for chest and bone radiography with the computed radiographic (CR) system were reviewed. The effect of incident exposure on the detectability of various abnormalities including nodule, pneumothorax, asbestosis, fine pulmonary line and other abnormalities were also discussed. Radiographic conditions for radiography with portable X-ray unit and CR system were investigated at several institutions. Chest and abdominal examinations with the CR system were performed under the same exposure conditions as those of screen-film systems. However, large fluctuations in the radiographic condition were found by some technologists. (author).

  9. Image quality in digital radiographic systems

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    Almeida Solange Maria de

    2003-01-01

    Full Text Available The aim of the present study was to evaluate the image quality of four direct digital radiographic systems. Radiographs were made of the maxillary central incisor and mandibular left molar regions of a dry skull, and an aluminum step-wedge. The X-ray generator operated at 10 mA, 60 and 70 kVp, and images were acquired with 3, 5, 8, 12, 24 and 48 exposure pulses. Six well-trained observers classified the images by means of scores from 1 to 3. Collected data were submitted to nonparametric statistical analysis using Fisher's exact test. Statistical analysis showed significant differences (p<0.01 in image quality with the four systems. Based on the results, it was possible to conclude that: 1 all of the digital systems presented good performance in producing acceptable images for diagnosis, if the exposures of the step-wedge and the maxillary central incisor region were made at 5 pulses, as well as at 8 pulses for the mandibular left molar region, selecting 60 or 70kVp; 2 higher percentages of acceptable images were obtained with the administration of lower radiation doses in CCD-sensors (charge-coupled device; 3 the Storage Phosphor systems produced acceptable images at a large range of exposure settings, that included low, intermediate and high radiation doses.

  10. Correlation of the score for subjective pain with physical disability, clinical and radiographic scores in recent onset rheumatoid arthritis

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    Turiel Maurizio

    2002-07-01

    Full Text Available Abstract Background To analyse the relationship between subjective pain score and other measures of clinical, radiographic and functional status; in particular Larsen radiographic scores and Health Assessment Questionnaire (HAQ; in patients with severe rheumatoid arthritis (RA with a disease duration of less than 3 years. Methods In this cross sectional study of 105 patients with RA (76 women, 29 men: mean age 50.93; mean disease duration 15.86 months; 71% rheumatoid factor positive subjective pain was assessed according to the Visual Analog Scale (VAS. Correlation coefficients between pain score and disease activity measures (patients' global assessment of disease by VAS, number of tender and swollen joints, morning stiffness, erythrocyte sedimentation rate [ESR], C-reactive protein [CRP] and titre of rheumatoid factor, radiographic evaluations (Larsen-Dale scores for radiographic damage of the small joints of the hands, wrist and feet, disability measures (health assessment questionnaire [HAQ], and demographic variables were calculated; hierarchical regression analysis was done with subjective pain score as the dependent variable. Results The Spearman's correlation coefficient comparing subjective pain and HAQ was 0.421 (p 0.05. In regression analysis, global assessment of disease by patients explained 32.8% of the variation in pain intensity score, morning stiffness 10.7%, CRP 4.0%, HAQ 3.8% and Larsen-Dale scores explained 2.1%; other variables were not significant in the model. Conclusions Pain scores of patients with early severe rheumatoid arthritis are correlated at higher levels with patients' global assessment of disease and with morning stiffness rather than with radiographic or other clinical variables such as number of tender and swollen joints.

  11. Volleyball Scoring Systems.

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    Calhoun, William; Dargahi-Noubary, G. R.; Shi, Yixun

    2002-01-01

    The widespread interest in sports in our culture provides an excellent opportunity to catch students' attention in mathematics and statistics classes. One mathematically interesting aspect of volleyball, which can be used to motivate students, is the scoring system. (MM)

  12. Volleyball Scoring Systems.

    Science.gov (United States)

    Calhoun, William; Dargahi-Noubary, G. R.; Shi, Yixun

    2002-01-01

    The widespread interest in sports in our culture provides an excellent opportunity to catch students' attention in mathematics and statistics classes. One mathematically interesting aspect of volleyball, which can be used to motivate students, is the scoring system. (MM)

  13. A Bayesian framework for automated cardiovascular risk scoring on standard lumbar radiographs

    DEFF Research Database (Denmark)

    Petersen, Peter Kersten; Ganz, Melanie; Mysling, Peter

    2012-01-01

    the score. Since the aorta is invisible on X-ray images, its position is reasoned from (1) the shape and location of the lumbar vertebrae and (2) the location, shape, and orientation of potential calcifications. The proposed framework follows the principle of Bayesian inference, which has several advantages......We present a fully automated framework for scoring a patients risk of cardiovascular disease (CVD) and mortality from a standard lateral radiograph of the lumbar aorta. The framework segments abdominal aortic calcifications for computing a CVD risk score and performs a survival analysis to validate...

  14. Feasibility and Value of Radiographic Union Score Hip Fracture after Treatment with Intramedullary Nail of Stable Hip Fractures

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    Maiettini, Daniele; Bisaccia, Michele; Caraffa, Auro; Rinonapoli, Giuseppe; Piscitelli, Luigi; Bisaccia, Olga; Rollo, Giuseppe; Meccariello, Luigi; Ceccarini, Paolo; Rebonato, Alberto

    2016-01-01

    Introduction: Given the importance of fracture healing on patient outcome in clinical practice, it is critical to assess fracture healing. Aim: The aim of this study was to evaluate the feasibility of the Radiographic Union Score Hip fracture after treatment with intramedullary nail of stable hip fractures. Patients and Methods: We retrospectively collected the data from the clinical records of our institution of the 47 patientswho had undergone intertrochanteric hip fracture treatment using an intramedullary nail. Pain visual analogic score (VAS) was collected the same day that X-rays were taken. Plain hip X-rays were performed, in two radiographic views, at 40 and 90 days after the surgical procedure. The correlation between the RUSH and VAS score was evaluated. Results: Mean RUSH and VAS scores showed a strong statistical improvement between the 40 and 90 day follow-ups. RUSH value at 40 days fitted an inverse linear regression with VAS, p-value of 0.0063 and r2 of 0.15. At 90 days the regression between RUSH and VAS scores was not significant. Conclusion: RUSH could be proposed as an objective system to evaluate union in hip fractures treated with intramedullary nail. PMID:28077901

  15. The Effect of Clinical, Radiographic and Functional Scores on the Total Score in the Evaluation of Congenital Clubfoot

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    Rakonjac, Zoran; Brdar, Radivoj; Popovic, Miroslav

    2014-01-01

    Introduction: The use of radical surgical treatments in treating congenital clubfoot is decreasing. Minimally invasive surgical treatment (MIST) is a way of treating congenital clubfoot, which is a kind of compromise between a radical surgical treatment and non-operational one. A few protocols of different authors McKay, Macnicol, Stevens, Meyer, G.W.Simons and Laaveg-Ponseti were used in the evaluation of the results. SCIENTIFIC OBJECTIVE: To determine the importance and role of groups of parameters (clinical, radiographic and functional) in the evaluation of the results in patients treated with the two methods (radical operation and MIST). Subjects and methods: This paper covers children who were treated for structural (idiopathic) form of PEVC. The testing is a prospective study and was conducted in two groups of patients. Group A (radical surgical treatment) – control group, where the total number of subjects was 50, out of which 35 male (70%) and 15 female (30%). The number of feet tested was 88. Group B (minimally invasive surgical treatment–MIST)–experimental group. The total number of subjects was 48, out of which 35 male (73%) and 13 female (27%). The number of feet tested was 84. For the analysis of the results, we used a questionnaire. The total number of parameters was fifteen, clinical, radiographic and functional, five parameters of each. Normal findings or measured value was determined by 0 points. The range of the total score (TS-a- total score range) 0-27 points, and the results were sorted out into the folowing categories: good result (0-5) satisfactory (6-11), poor (12-19) and deformity recrudescence (20-27) points. Results: The proportion of good results at 88 feet in group A was 0,477 as at 84 feet in group B it was significantly higher and came to 0,893. The difference between these proportions is statistically highly significant (t = 5.84, p <0.001). Chi-square test (χ2 = 30.083 df = 1 N = 172, p <0.001) indicated that there is a

  16. Radiographic assessment of proximal caries: A comparison between film-based and dexis digital imaging systems

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    Anupama N Kalappanavar

    2011-01-01

    Full Text Available This study compared Kodak Ektaspeed film and Dexis digital imaging systems for their diagnostic accuracy in detection of proximal canes in 210 proximal surfaces from 105 extracted human teeth (20 premolars and 85 molars, 129 of which were carious. Ground teeth were evaluated histologically. The images were assessed by an observer. ANOVA revealed that groups differ in scoring patterns with f-value of 26.72 and p < 0.01. The mean caries score by histologic assessment was significantly (p < 0.01 more when compared with the scores obtained by conventional and Dexis digital radiographic methods. The mean score for conventional radiographic method was slightly more than Dexis digital radiographic method, but the difference was statistically insignificant (p < 0.05. Both the radiographic methods were less accurate in detecting proximal canes confined to enamel, but as the lesion depth was increased to dentin, the rate of caries detection increased dramatically. It was concluded that both conventional and Dexis digital radiographic methods under estimated canes depth when compared with histologic method. Lastly, conventional film radiographs and Dexis digital radiographs did not perform significantly different from each other in the detection of canes.

  17. Inter- and intrareader variability in the interpretation of two radiographic classification systems for juvenile rheumatoid arthritis

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    Doria, Andrea S.; Castro, Claudio C. de; Sernik, Renato A.; Vitule, Luis F.; Arantes, Paula R.; Lucato, Leandro; Germano, Marco A.N.; Cerri, Giovanni G. [Department of Diagnostic Imaging, Heart Institute (InCor) and Radiology Institute (InRad), Hospital das Clinicas da Universidade de Sao Paulo, Sao Paulo (Brazil); Kiss, Maria Helena B. [Division of Rheumatology, Children' s Institute, Hospital das Clinicas da Universidade de Sao Paulo, Sao Paulo (Brazil); Silva, Carlos H.M. [Division of Rheumatology, Department of Pediatrics, Faculdade de Medicina da Universidade Federal de Uberlandia MG, Uberlandia (Brazil); Zerbini, Cristiano A.F. [Division of Rheumatology, Hospital Heliopolis, Sao Paulo (Brazil)

    2003-10-01

    To evaluate the inter- and intrareader variability for interpretation of a modified Larsen's radiographic classification system for juvenile rheumatoid arthritis (JRA) focused on osteochondral lesions and a conventional Larsen's classification system, compared to a reference MR scoring system of corresponding images. Seventy-five radiographs of 60 children with JRA, performed within a short interval of time from the MR examinations, were independently evaluated by three experienced radiologists, three diagnostic imaging residents and three rheumatologists, in two separate sessions, according to the two different classification methods, blinded to the corresponding MR images. The inter- and intrareader concordance rates between the two radiographic classification systems and the MR-related radiographs were respectively poor and poor/moderate. The interobserver range of weighted kappa values for the conventional and the modified Larsen's system respectively was 0.25-0.37 vs 0.19-0.39 for radiologists, 0.25-0.37 vs 0.18-0.30 for residents and 0.19-0.51 vs 0.17-0.29 for rheumatologists. The intrareader rate ranged from 0.17-0.55 for radiologists, 0.2-0.56 for residents, and 0.14-0.59 for rheumatologists. Although the proposal of a new radiographic classification system for JRA focused on osteochondral abnormalities sounds promising, the low inter- and intrareader concordance rates with an MR-related radiographic system makes the clinical applicability of such a radiographic system less suitable. (orig.)

  18. Relation between radiographic BI-RADS scores and triple negativity in patients with ductal carcinomas.

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    Oktay, Murat; Oktay, Nilay Aydın; Besir, Fahri Halit; Buyukkaya, Ramazan; Erdem, Havva; Onal, Binnur; Ozaydın, Ismet; Yazıcı, Burhan

    2014-01-01

    The aim of this study was to investigate association of radiographic (BI-RADS 4 and 5) results and prognostic factors of invasive ductal carcinomas with their histopathological subtypes. A total of 103 patients histopathologically diagnosed with invasive ductal carcinoma of breast with in last five years period were enrolled. Of them, 69 patients who had radiological reports in were included from registry of Radiology Department; Duzce University Training and Research Hospital archives. BI-RADS scores (4 and 5) of radiological reports and subtypes of ductal carcinoma were compared. Of 69 cases, 12 of 22 cases with BIRADS 4 score were Triple negative (TN) while 5 of 47 cases with BIRADS 5 score were TN (p = 0.001). The patients with TN tumors were found to have lower average age, higher grade, higher Ki67 proliferative index and fewer lymph node metastasis than those with non-TN ductal carcinomas (p = 0.048; 0.019; 0.02; 0.048 respectively). Patients who had radiological BIRADS 4 score were significantly more frequent TN type carcinoma than BI-RADS 5. It is important to pay attention to this issue when clinicians evaluate patients with BI-RADS 4 score breast lesions.

  19. Development of a Radiographic Union Score for Determining Osteotomy Union Rates in Long Bones of the Foot.

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    Summers, N Jake; Ashcraft, Jill; Badri, Homan; Mostafa, John; Barrett, Brandon; Sganga, Michael; Cook, Jeremy J; Basile, Philip; Cook, Emily A

    2015-01-01

    Determining the status of bone healing after osteotomy can be challenging and has implications ranging from clinical decision-making to standardization of research outcomes without the use of computed tomography. To date, no method has been validated for determining osseous healing of an osteotomy site of the long bones of the foot. The purpose of the present study was to develop a radiographic union scoring system that would enhance the diagnostic healing assessment. We adapted existing orthopedic scales that had been validated for healing in the leg for application in the long bones of the foot. One hundred cases were evaluated by 6 blinded assessors to test the inter- and intrarater reliability of the subjective healing assessment compared with the proposed scoring system. The radiographs were classified by postoperative period: ≤4, 5 to 12, and >12 weeks. The proposed scale had a high interrater reliability but was burdensome. Using a priori item reduction protocols, the scale was limited to the 5 items with the best internal consistency, which significantly reduced the burden. The result was excellent interrater reliability (α = 0.87) among all assessors compared with acceptable reliability (α = 0.66) for the subjective osteotomy healing assessment. The intrarater reliability during the subsequent retest phase demonstrated similar relationships, with low agreement (r = 0.38) for subjective healing. Each of the items included in the final scoring scale had moderate to good agreement across all assessors (r = 0.51 to 0.63). The reliability of this system appeared superior to the subjective assessment of osseous healing alone, even in the absence of clinical correlates after an osteotomy in the foot. Copyright © 2015 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.

  20. to different joint combinations and the Sharp/van der Heijde radiographic score

    DEFF Research Database (Denmark)

    Ejbjerg, Bo Jannik; Vestergaard, Aage; Jacobsen, Søren;

    2005-01-01

    To compare 2 magnetic resonance imaging (MRI) approaches and radiographic evaluation according to the Sharp/van der Heijde method with respect to sensitivity to change in joint destruction in patients with rheumatoid arthritis (RA).......To compare 2 magnetic resonance imaging (MRI) approaches and radiographic evaluation according to the Sharp/van der Heijde method with respect to sensitivity to change in joint destruction in patients with rheumatoid arthritis (RA)....

  1. Skin scoring in systemic sclerosis

    DEFF Research Database (Denmark)

    Zachariae, Hugh; Bjerring, Peter; Halkier-Sørensen, Lars

    1994-01-01

    Forty-one patients with systemic sclerosis were investigated with a new and simple skin score method measuring the degree of thickening and pliability in seven regions together with area involvement in each region. The highest values were, as expected, found in diffuse cutaneous systemic sclerosis...... (type III SS) and the lowest in limited cutaneous systemic sclerosis (type I SS) with no lesions extending above wrists and ancles. A positive correlation was found to the aminoterminal propeptide of type III procollagen, a serological marker for synthesis of type III collagen. The skin score...

  2. Skin scoring in systemic sclerosis

    DEFF Research Database (Denmark)

    Zachariae, Hugh; Bjerring, Peter; Halkier-Sørensen, Lars

    1994-01-01

    Forty-one patients with systemic sclerosis were investigated with a new and simple skin score method measuring the degree of thickening and pliability in seven regions together with area involvement in each region. The highest values were, as expected, found in diffuse cutaneous systemic sclerosis...... (type III SS) and the lowest in limited cutaneous systemic sclerosis (type I SS) with no lesions extending above wrists and ancles. A positive correlation was found to the aminoterminal propeptide of type III procollagen, a serological marker for synthesis of type III collagen. The skin score...

  3. Relation between radiographic BI-RADS scores and triple negativity in patients with ductal carcinomas

    OpenAIRE

    OKTAY, Murat; Oktay, Nilay Aydın; Besir, Fahri Halit; Buyukkaya, Ramazan; Erdem, Havva; Binnur ÖNAL; Ozaydın, İsmet; Yazıcı, Burhan

    2014-01-01

    The aim of this study was to investigate association of radiographic (BI-RADS 4 and 5) results and prognostic factors of invasive ductal carcinomas with their histopathological subtypes. A total of 103 patients histopathologically diagnosed with invasive ductal carcinoma of breast with in last five years period were enrolled. Of them, 69 patients who had radiological reports in were included from registry of Radiology Department; Duzce University Training and Research Hospital archives. BI-RA...

  4. Relation between radiographic BI-RADS scores and triple negativity in patients with ductal carcinomas

    OpenAIRE

    OKTAY, Murat; Oktay, Nilay Aydın; Besir, Fahri Halit; Buyukkaya, Ramazan; Erdem, Havva; ÖNAL, Binnur; Ozaydın, İsmet; Yazıcı, Burhan

    2014-01-01

    The aim of this study was to investigate association of radiographic (BI-RADS 4 and 5) results and prognostic factors of invasive ductal carcinomas with their histopathological subtypes. A total of 103 patients histopathologically diagnosed with invasive ductal carcinoma of breast with in last five years period were enrolled. Of them, 69 patients who had radiological reports in were included from registry of Radiology Department; Duzce University Training and Research Hospital archives. BI-RA...

  5. Description and validation of a scoring system for tomosynthesis in pulmonary cystic fibrosis

    Energy Technology Data Exchange (ETDEWEB)

    Vult von Steyern, Kristina; Bjoerkman-Burtscher, Isabella M.; Bozovic, Gracijela; Wiklund, Marie; Geijer, Mats [Skaane University Hospital, Lund University, Centre for Medical Imaging and Physiology, Lund (Sweden); Hoeglund, Peter [Skaane University Hospital, Competence Centre for Clinical Research, Lund (Sweden)

    2012-12-15

    To design and validate a scoring system for tomosynthesis (digital tomography) in pulmonary cystic fibrosis. A scoring system dedicated to tomosynthesis in pulmonary cystic fibrosis was designed. Three radiologists independently scored 88 pairs of radiographs and tomosynthesis examinations of the chest in 60 patients with cystic fibrosis and 7 oncology patients. Radiographs were scored according to the Brasfield scoring system and tomosynthesis examinations were scored using the new scoring system. Observer agreements for the tomosynthesis score were almost perfect for the total score with square-weighted kappa >0.90, and generally substantial to almost perfect for subscores. Correlation between the tomosynthesis score and the Brasfield score was good for the three observers (Kendall's rank correlation tau 0.68, 0.77 and 0.78). Tomosynthesis was generally scored higher as a percentage of the maximum score. Observer agreements for the total score for Brasfield score were almost perfect (square-weighted kappa 0.80, 0.81 and 0.85). The tomosynthesis scoring system seems robust and correlates well with the Brasfield score. Compared with radiography, tomosynthesis is more sensitive to cystic fibrosis changes, especially bronchiectasis and mucus plugging, and the new tomosynthesis scoring system offers the possibility of more detailed and accurate scoring of disease severity. (orig.)

  6. A Computer-Aided Detection System for Digital Chest Radiographs

    Directory of Open Access Journals (Sweden)

    Juan Manuel Carrillo-de-Gea

    2016-01-01

    Full Text Available Computer-aided detection systems aim at the automatic detection of diseases using different medical imaging modalities. In this paper, a novel approach to detecting normality/pathology in digital chest radiographs is proposed. The problem tackled is complicated since it is not focused on particular diseases but anything that differs from what is considered as normality. First, the areas of interest of the chest are found using template matching on the images. Then, a texture descriptor called local binary patterns (LBP is computed for those areas. After that, LBP histograms are applied in a classifier algorithm, which produces the final normality/pathology decision. Our experimental results show the feasibility of the proposal, with success rates above 87% in the best cases. Moreover, our technique is able to locate the possible areas of pathology in nonnormal radiographs. Strengths and limitations of the proposed approach are described in the Conclusions.

  7. Hybrid object detection system for x-ray radiographs

    Science.gov (United States)

    Vita, Joshua A.; Wantuch, Andrew C.; Jimenez, Edward S.; Bray, Iliana E.

    2016-10-01

    While object detection is a relatively well-developed field with respect to visible light photographs, there are significantly fewer algorithms designed to work with other imaging modalities. X-ray radiographs have many unique characteristics that introduce additional challenges that can cause common image processing and object detection algorithms to begin to fail. Examples of these problematic attributes include the fact that radiographs are only represented in gray scale with similar textures and that transmission overlap occurs when multiple objects are overlaid on top of each other. In this paper we not only analyze the effectiveness of common object detection techniques as applied to our specific database, but also outline how we combined various techniques to improve overall performance. While significant strides have been made towards developing a robust object detection algorithm for use with the given database, it is still a work in progress. Further research will be needed in order to deal with the specific obstacles posed by radiographs and X-ray imaging systems. Success in this project would have disruptive repercussions in fields ranging from medical imaging to manufacturing quality assurance and national security.

  8. Electronic system for digital acquisition of rotational panoramic radiographs

    Energy Technology Data Exchange (ETDEWEB)

    McDavid, W.D.; Dove, S.B.; Welander, U.; Tronje, G. (Department of Dental Diagnostic Science, University of Texas Health Science Center, San Antonio (USA))

    1991-04-01

    A prototype system for digital panoramic imaging of the maxillofacial complex has been developed. In this system x-ray film is replaced by an electronic sensor that delivers the image information to a computer for storage in digital format. The images, which are similar to conventional panoramic radiographs, are displayed on a high-resolution video monitor and may be stored on optical disk for future use. Hard-copy output is also available. The present prototype system has been installed on an Orthopantomograph model OP10 panoramic x-ray machine is programmed for operation with this machine, but in principle the system can be installed on any such device. The system may be incorporated into the design of future panoramic x-ray systems or may be used to retrofit panoramic x-ray systems now using photographic film to record the radiographic image. Greater sensitivity of electronic sensors should make possible a reduction of x-ray dose to the patient, compared with film-based systems.

  9. A radiographic classification system in juvenile rheumatoid arthritis applied to the knee

    Energy Technology Data Exchange (ETDEWEB)

    Dale, K. [Dept. of Radiology, Oslo Sanitetsforening Rheumatism Hospital (Norway); Paus, A.C. [Dept. of Surgery, Oslo Sanitetsforening Rheumatism Hospital (Norway); Laires, K. [Dept. of Radiology, Oslo Sanitetsforening Rheumatism Hospital (Norway)

    1994-02-01

    A new radiographic grading system for evaluation of juvenile rheumatoid arthritis (JRA) for the knee is presented. The classification is based on known arthritic criteria in childhood. Joints with erosion are given a higher score than growth disturbances alone. Signs of osteoarthrosis including joint space narrowing were excluded from the classification. The femorotibial and patello-femoral joints are assessed together. Verbal definitions are used for the classification, but, regarding the erosions, standard reference films are used. The intra- and inter-observer variations of the method were low. (P < 0.01) (orig.)

  10. A Bayesian Approach to Learning Scoring Systems.

    Science.gov (United States)

    Ertekin, Şeyda; Rudin, Cynthia

    2015-12-01

    We present a Bayesian method for building scoring systems, which are linear models with coefficients that have very few significant digits. Usually the construction of scoring systems involve manual effort-humans invent the full scoring system without using data, or they choose how logistic regression coefficients should be scaled and rounded to produce a scoring system. These kinds of heuristics lead to suboptimal solutions. Our approach is different in that humans need only specify the prior over what the coefficients should look like, and the scoring system is learned from data. For this approach, we provide a Metropolis-Hastings sampler that tends to pull the coefficient values toward their "natural scale." Empirically, the proposed method achieves a high degree of interpretability of the models while maintaining competitive generalization performances.

  11. Advanced algorithms for radiographic material discrimination and inspection system design

    Energy Technology Data Exchange (ETDEWEB)

    Gilbert, Andrew J.; McDonald, Benjamin S.; Deinert, Mark R.

    2016-10-01

    X-ray and neutron radiography are powerful tools for non-invasively inspecting the interior of objects. Materials can be discriminated by noting how the radiographic signal changes with variations in the input spectrum or inspection mode. However, current methods are limited in their ability to differentiate when multiple materials are present, especially within large and complex objects. With X-ray radiography, the inability to distinguish materials of a similar atomic number is especially problematic. To overcome these critical limitations, we augmented our existing inverse problem framework with two important expansions: 1) adapting the previous methodology for use with multi-modal radiography and energy-integrating detectors, and 2) applying the Cramer-Rao lower bound to select an optimal set of inspection modes for a given application a priori. Adding these expanded capabilities to our algorithmic framework with adaptive regularization, we observed improved discrimination between high-Z materials, specifically plutonium and tungsten. The combined system can estimate plutonium mass within our simulated system to within 1%. Three types of inspection modes were modeled: multi-endpoint X-ray radiography alone; in combination with neutron radiography using deuterium-deuterium (DD); or in combination with neutron radiography using deuterium-tritium (DT) sources.

  12. THE EFFICIENCY OF TENNIS DOUBLES SCORING SYSTEMS

    Directory of Open Access Journals (Sweden)

    Geoff Pollard

    2010-09-01

    Full Text Available In this paper a family of scoring systems for tennis doubles for testing the hypothesis that pair A is better than pair B versus the alternative hypothesis that pair B is better than A, is established. This family or benchmark of scoring systems can be used as a benchmark against which the efficiency of any doubles scoring system can be assessed. Thus, the formula for the efficiency of any doubles scoring system is derived. As in tennis singles, one scoring system based on the play-the-loser structure is shown to be more efficient than the benchmark systems. An expression for the relative efficiency of two doubles scoring systems is derived. Thus, the relative efficiency of the various scoring systems presently used in doubles can be assessed. The methods of this paper can be extended to a match between two teams of 2, 4, 8, …doubles pairs, so that it is possible to establish a measure for the relative efficiency of the various systems used for tennis contests between teams of players.

  13. Diagnosis. Severity scoring system for paediatric FMF.

    Science.gov (United States)

    Livneh, Avi

    2012-04-17

    Severity scoring systems for adult familial Mediterranean fever (FMF) are established and used as important clinical and analytical tools in disease management and research. A recent paper highlights the need for a paediatric FMF severity measure. How should such a score be built and what challenges might be faced?

  14. Development of a standardized method of assessment of radiographs and radiographic change in juvenile idiopathic arthritis: introduction of the Dijkstra composite score.

    NARCIS (Netherlands)

    Rossum, M.A. van; Boers, M.; Zwinderman, A.H.; Soesbergen, R.M. van; Wieringa, H.; Fiselier, T.J.W.; Franssen, M.J.A.M.; Cate, R. ten; Suijlekom-Smit, L.W. van; Wulffraat, N.M.; Luijk, W.H. van; Oostveen, J.C.; Kuis, W.; Dijkmans, B.A.C.

    2005-01-01

    OBJECTIVE: To evaluate the sensitivity to change of a newly developed radiologic assessment tool, the Dijkstra score, and to develop a numeric composite score and progressor classification scheme to apply in juvenile idiopathic arthritis (JIA) trials. METHODS: A placebo-controlled trial of sulfasala

  15. Development of a standardized method of assessment of radiographs and radiographic change in juvenile idiopathic arthritis - Introduction of the Dijkstra composite score

    NARCIS (Netherlands)

    van Rossum, MAJ; Zwinderman, AH; van Soesbergen, RM; Wieringa, H; Fiselier, TJW; Franssen, MJAM; ten Cate, R; van Suijlekom-Smit, LWA; Wulffraat, NM; van Luijk, WHJ; Oostveen, JCM; Kuis, W; Dijkmans, BAC

    2005-01-01

    Objective. To evaluate the sensitivity to change of a newly developed radiologic assessment tool, the Dijkstra score, and to develop a numeric composite score and progressor classification scheme to apply in juvenile idiopathic arthritis (JIA) trials. Methods. A placebo-controlled trial of sulfasala

  16. High Reliability of a Scoring System for Implant Position in Undisplaced Femoral Neck Fractures

    DEFF Research Database (Denmark)

    Viberg, Bjarke; Bartholin, Marie-Louise L; Weber, Kolja;

    2016-01-01

    OBJECTIVES: The aim of this study was to evaluate the intra-rater and inter-rater reliability of a scoring system for internal fixation (SIFA) in undisplaced femoral neck fractures (FNF). DESIGN: A reproducibility study with a historical consecutive cohort. SETTING: The patients were all treated...... of the screw position in femoral head had the largest difference of acceptable positioning, when comparing visual assessment with the measured. CONCLUSIONS: The SIFA scoring system demonstrates substantial intra-rater and inter-rater reliability (kappa (0.51-0.78), when raters make measurements of radiographs......, but lower reliability (kappa 0.13-0.78) when raters visually assess the radiographs without measuring. The SIFA scoring system should be assessed on a large cohort for correlation with clinical evaluation....

  17. Filmless versus film-based systems in radiographic examination costs: an activity-based costing method

    Directory of Open Access Journals (Sweden)

    Sase Yuji

    2011-09-01

    Full Text Available Abstract Background Since the shift from a radiographic film-based system to that of a filmless system, the change in radiographic examination costs and costs structure have been undetermined. The activity-based costing (ABC method measures the cost and performance of activities, resources, and cost objects. The purpose of this study is to identify the cost structure of a radiographic examination comparing a filmless system to that of a film-based system using the ABC method. Methods We calculated the costs of radiographic examinations for both a filmless and a film-based system, and assessed the costs or cost components by simulating radiographic examinations in a health clinic. The cost objects of the radiographic examinations included lumbar (six views, knee (three views, wrist (two views, and other. Indirect costs were allocated to cost objects using the ABC method. Results The costs of a radiographic examination using a filmless system are as follows: lumbar 2,085 yen; knee 1,599 yen; wrist 1,165 yen; and other 1,641 yen. The costs for a film-based system are: lumbar 3,407 yen; knee 2,257 yen; wrist 1,602 yen; and other 2,521 yen. The primary activities were "calling patient," "explanation of scan," "take photographs," and "aftercare" for both filmless and film-based systems. The cost of these activities cost represented 36.0% of the total cost for a filmless system and 23.6% of a film-based system. Conclusions The costs of radiographic examinations using a filmless system and a film-based system were calculated using the ABC method. Our results provide clear evidence that the filmless system is more effective than the film-based system in providing greater value services directly to patients.

  18. Filmless versus film-based systems in radiographic examination costs: an activity-based costing method.

    Science.gov (United States)

    Muto, Hiroshi; Tani, Yuji; Suzuki, Shigemasa; Yokooka, Yuki; Abe, Tamotsu; Sase, Yuji; Terashita, Takayoshi; Ogasawara, Katsuhiko

    2011-09-30

    Since the shift from a radiographic film-based system to that of a filmless system, the change in radiographic examination costs and costs structure have been undetermined. The activity-based costing (ABC) method measures the cost and performance of activities, resources, and cost objects. The purpose of this study is to identify the cost structure of a radiographic examination comparing a filmless system to that of a film-based system using the ABC method. We calculated the costs of radiographic examinations for both a filmless and a film-based system, and assessed the costs or cost components by simulating radiographic examinations in a health clinic. The cost objects of the radiographic examinations included lumbar (six views), knee (three views), wrist (two views), and other. Indirect costs were allocated to cost objects using the ABC method. The costs of a radiographic examination using a filmless system are as follows: lumbar 2,085 yen; knee 1,599 yen; wrist 1,165 yen; and other 1,641 yen. The costs for a film-based system are: lumbar 3,407 yen; knee 2,257 yen; wrist 1,602 yen; and other 2,521 yen. The primary activities were "calling patient," "explanation of scan," "take photographs," and "aftercare" for both filmless and film-based systems. The cost of these activities cost represented 36.0% of the total cost for a filmless system and 23.6% of a film-based system. The costs of radiographic examinations using a filmless system and a film-based system were calculated using the ABC method. Our results provide clear evidence that the filmless system is more effective than the film-based system in providing greater value services directly to patients.

  19. Disease severity scoring systems in dermatology

    Directory of Open Access Journals (Sweden)

    Cemal Bilaç

    2016-06-01

    Full Text Available Scoring systems have been developed to interpret the disease severity objectively by evaluating the parameters of the disease. Body surface area, visual analogue scale, and physician global assessment are the most frequently used scoring systems for evaluating the clinical severity of the dermatological diseases. Apart from these scoring systems, many specific scoring systems for many dermatological diseases, including acne (acne vulgaris, acne scars, alopecia (androgenetic alopecia, tractional alopecia, bullous diseases (autoimmune bullous diseases, toxic epidermal necrolysis, dermatitis (atopic dermatitis, contact dermatitis, dyshidrotic eczema, hidradenitis suppurativa, hirsutismus, connective tissue diseases (dermatomyositis, skin involvement of systemic lupus erythematosus (LE, discoid LE, scleroderma, lichen planoplaris, mastocytosis, melanocytic lesions, melasma, onychomycosis, oral lichen planus, pityriasis rosea, psoriasis (psoriasis vulgaris, psoriatic arthritis, nail psoriasis, sarcoidosis, urticaria, and vitiligo, have also been developed. Disease severity scoring methods are ever more extensively used in the field of dermatology for clinical practice to form an opinion about the prognosis by determining the disease severity; to decide on the most suitable treatment modality for the patient; to evaluate the efficacy of the applied medication; and to compare the efficiency of different treatment methods in clinical studies.

  20. Association of a multibiomarker disease activity score at multiple time-points with radiographic progression in rheumatoid arthritis: results from the SWEFOT trial

    Science.gov (United States)

    Hambardzumyan, Karen; Bolce, Rebecca J; Saevarsdottir, Saedis; Forslind, Kristina; Wallman, Johan K; Cruickshank, Scott E; Sasso, Eric H; Chernoff, David; van Vollenhoven, Ronald F

    2016-01-01

    Objectives In rheumatoid arthritis (RA), predictive biomarkers for subsequent radiographic progression (RP) could improve therapeutic choices for individual patients. We previously showed that the multibiomarker disease activity (MBDA) score in patients with newly diagnosed RA identified patients at risk for RP. We evaluated the MBDA score at multiple time-points as a predictor of RP during 2 years of follow-up. Methods A subset of patients with RA (N=220) from the Swedish Farmacotherapy (SWEFOT) trial were analysed for MBDA score, disease activity score of 28 joints (DAS28), C reactive protein (CRP) and erythrocyte sedimentation rate (ESR) at baseline (BL), month 3 and year 1, for predicting RP based on modified Sharp/van der Heijde scores at BL, year 1 and year 2. Results Patients with persistently low MBDA (44) MBDA scores. Among methotrexate non-responders with a high MBDA score at BL or month 3, significantly more of those who received triple therapy had RP at year 2 compared with those who received antitumour necrosis factor therapy. Conclusions Measuring the MBDA score both before and during treatment in RA was useful for the assessment of individual patient risk for RP during 2 years of follow-up. In comparison with low CRP, ESR or DAS28, a low MBDA score at any time-point was associated with numerically lower proportions of RP. Trial registration number NCT00764725. PMID:26958364

  1. Prediction of Incident Major Osteoporotic and Hip Fractures by Trabecular Bone Score (TBS) and Prevalent Radiographic Vertebral Fracture in Older Men.

    Science.gov (United States)

    Schousboe, John T; Vo, Tien; Taylor, Brent C; Cawthon, Peggy M; Schwartz, Ann V; Bauer, Douglas C; Orwoll, Eric S; Lane, Nancy E; Barrett-Connor, Elizabeth; Ensrud, Kristine E

    2016-03-01

    Trabecular bone score (TBS) has been shown to predict major osteoporotic (clinical vertebral, hip, humerus, and wrist) and hip fractures in postmenopausal women and older men, but the association of TBS with these incident fractures in men independent of prevalent radiographic vertebral fracture is unknown. TBS was estimated on anteroposterior (AP) spine dual-energy X-ray absorptiometry (DXA) scans obtained at the baseline visit for 5979 men aged ≥65 years enrolled in the Osteoporotic Fractures in Men (MrOS) Study and its association with incident major osteoporotic and hip fractures estimated with proportional hazards models. Model discrimination was tested with Harrell's C-statistic and with a categorical net reclassification improvement index, using 10-year risk cutpoints of 20% for major osteoporotic and 3% for hip fractures. For each standard deviation decrease in TBS, there were hazard ratios of 1.27 (95% confidence interval [CI] 1.17 to 1.39) for major osteoporotic fracture, and 1.20 (95% CI 1.05 to 1.39) for hip fracture, adjusted for FRAX with bone mineral density (BMD) 10-year fracture risks and prevalent radiographic vertebral fracture. In the same model, those with prevalent radiographic vertebral fracture compared with those without prevalent radiographic vertebral fracture had hazard ratios of 1.92 (95% CI 1.49 to 2.48) for major osteoporotic fracture and 1.86 (95% CI 1.26 to 2.74) for hip fracture. There were improvements of 3.3%, 5.2%, and 6.2%, respectively, of classification of major osteoporotic fracture cases when TBS, prevalent radiographic vertebral fracture status, or both were added to FRAX with BMD and age, with minimal loss of correct classification of non-cases. Neither TBS nor prevalent radiographic vertebral fracture improved discrimination of hip fracture cases or non-cases. In conclusion, TBS and prevalent radiographic vertebral fracture are associated with incident major osteoporotic fractures in older men independent of each other

  2. Relationship between biochemical markers and radiographic scores in the evaluation of the osteoarticular status of Warmblood stallions.

    Science.gov (United States)

    Verwilghen, Denis; Busoni, Valeria; Gangl, Monika; Franck, Thierry; Lejeune, Jean-Philippe; Vanderheyden, Laurent; Detilleux, Johann; Grulke, Sigrid; Deberg, Michelle; Henrotin, Yves; Serteyn, Didier

    2009-10-01

    Establishing the osteoarticular status of the horse is often performed by means of radiological screening of the animals. Widespread blood sampling could reveal to be an interesting alternative to this procedure which is time consuming and sometimes technically difficult. The aim of this study was to investigate the relationship between the radiological status of the horses and the levels of biochemical markers of cartilage degradation and synovial inflammation. A specific radiological scoring and classification system was therefore developed and applied on 63 stallions presented for studbook admission. Additionally, groups of horses were established according to the occurrence of osteochondrosis, degenerative joint disease and distal interphalangeal joint effusion. Insulin growth factor-I, myeloperoxidases, Coll2-1 and Coll2-1NO(2) were used as blood markers. The combination of the blood parameters did not seem to correlate with the used scoring system. Coll2-1NO(2) levels however tended to increase with poorer radiological class and this could therefore potentially be a useful predictor of the osteoarticular status in the horse. Coll2-1 levels were significantly higher in the degenerative joint disease group. A high percentage of horses with distal interphalangeal joint effusion was present in this study and was associated with decreased IGF-I and increased Coll2-1 levels.

  3. Diagnostic accuracy of the Barr and Blethyn radiological scoring systems for childhood constipation assessed using colonic transit time as the gold standard

    Energy Technology Data Exchange (ETDEWEB)

    Jackson, Claire R.; Wylie, Anna B.Z.; Adams, Charlotte [Royal Victoria Infirmary, Department of Paediatric Surgery, Newcastle upon Tyne (United Kingdom); Lee, Richard E. [Royal Victoria Infirmary, Department of Radiology, Newcastle upon Tyne (United Kingdom); Jaffray, Bruce [University of Newcastle upon Tyne, School of Clinical Medical Sciences (Child Health), Sir James Spence Institute, Newcastle upon Tyne (United Kingdom)

    2009-07-15

    Constipation is a common childhood symptom and abdominal radiography is advocated in diagnosis and management. To assess the reproducibility and diagnostic accuracy of the Barr and Blethyn systems for quantifying constipation on abdominal radiographs in children. Radiographs were scored by three observers of increasing radiological experience (student, junior doctor, consultant). Abdominal radiographs produced during measurement of colonic transit time (CTT) were classified as constipated or normal based on the value of the transit time, and were scored using both systems by observers blinded to the CTT. Abdominal radiographs obtained in children for reasons other than constipation were classed as normal and similarly scored. Reproducibility was measured using the kappa statistic. Diagnostic accuracy was measured using the area under the curve (AUC) for the receiver operator characteristic (ROC) curve. Using either system, scores were higher for constipated children (P<0.01). The consultant produced higher scores than the other observers (P<0.01). Interobserver reproducibility was moderate with the best kappa value only 0.48. The best correlation between score and CTT was 0.51 (junior doctor scores). Diagnostic accuracy of the scores was only moderate, with the largest AUC for a ROC curve of 0.84 for the consultant using the Barr score. Scoring of abdominal radiographs in the assessment of childhood constipation should be abandoned because it is dependent on the experience of the observer, is poorly reproducible, and does not accurately discriminate between constipated children and children without constipation. (orig.)

  4. A New Clinical Scoring System for Adenoid Hypertrophy in Children

    Directory of Open Access Journals (Sweden)

    Shervin Sharifkashani

    2015-01-01

    Full Text Available Introduction: Chronic nasal obstruction due to adenoid hypertrophy is a very common disorder. Although the clinical assessment of adenoid hypertrophy is essential, its real value in young children is difficult to evaluate. The purpose of this prospective study was to validate a simple clinical score to predict the severity of adenoid obstruction and to evaluate the relationship between this method of clinical scoring with radiography and nasopharyngeal endoscopy.   Materials and Methods: Ninety symptomatic children were enrolled into this study. The clinical score included difficulty of breathing during sleep, apnea, and snoring. We investigated the relationship between clinical scoring, nasal endoscopy, and radiographic findings.   Results: The clinical score correlated very well with endoscopic findings (P0.05 and endoscopic findings and imaging (P>0.05 was weak.    Conclusion:  Clinical findings could be used to select children for adenoidectomy, especially when endoscopic examination is not available or cannot be performed.

  5. Radiopacity evaluation of Portland and MTA-based cements by digital radiographic system

    Directory of Open Access Journals (Sweden)

    Alvaro Henrique Borges

    2011-06-01

    Full Text Available OBJECTIVE: The aim of the present study was to evaluate the radiopacity of Portland and MTA-based cements using the Digora TM digital radiographic system. MATERIAL AND METHODS: The performed tests followed specification number 57 from the American National Standard Institute/American Dental Association (2000 for endodontic sealing materials. The materials were placed in 5 acrylic plates, especially designed for this experiment, along with a graduated aluminum stepwedge varying from 1 to 10 mm in thickness. The set was radiographed at a 30 cm focus-object distance and with 0.2 s exposure time. After the radiographs were taken, the optical laser readings of radiographs were performed by Digora TM system. Five radiographic density readings were performed for each studied material and for each step of the aluminum scale. RESULTS: White ProRoot MTA (155.99±8.04, gray ProRoot MTA (155.96±16.30 and MTA BIO (143.13±16.94 presented higher radiopacity values (p<0.05, while white non-structural Portland (119.76±22.34, gray Portland (109.71±4.90 and white structural Portland (99.59±12.88 presented lower radiopacity values (p<0.05. CONCLUSIONS: It was concluded that MTA-based cements were the only materials presenting radiopacity within the ANSI/ADA specifications.

  6. Discriminant validity of the Ankylosing Spondylitis Disease Activity Score (ASDAS) in patients with non-radiographic axial spondyloarthritis and ankylosing spondylitis: a cohort study.

    Science.gov (United States)

    Kilic, Erkan; Kilic, Gamze; Akgul, Ozgur; Ozgocmen, Salih

    2015-06-01

    The aim of this study was to assess discriminant validity of Ankylosing Spondylitis Disease Activity Score (ASDAS)-C-reactive protein (-CRP) and ASDAS-erythrocyte sedimentation rate (-ESR) and to compare with The Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) as clinical tools for the measurement of disease activity in patients with non-radiographic axial spondyloarthritis (nr-axSpA) and ankylosing spondylitis (AS). Also, the cut-off values for ASDAS-CRP in nr-axSpA and AS is revisited. Patients with axSpA were recruited from Erciyes Spondyloarthritis Cohort (ESPAC) and were assessed for disease activity, quality of life and functional measures. The discriminatory ability of ASDAS-CRP and ASDAS-ESR was assessed using standardized mean differences and receiver operating characteristic (ROC) curves analysis. Optimal cut-off values for disease activity scores were calculated. Two hundred and eighty-seven patients with axSpA (nr-axSpA:132, AS:155) were included in this study. Two ASDAS versions and BASDAI had good correlations with patient's and physician's global assessment in both groups. Discriminatory ability of ASDAS-CRP, ASDAS-ESR and BASDAI were similar in patients with nr-axSpA and AS when the patients were assigned into low and high disease activity according to the ASAS partial remission, patient's and physician's global assessment scores (based on the comparison of ROC curves). ASDAS cut-off values are quite similar between groups indicating that ASDAS-CRP works similarly well in nr-axSpA and AS. The performance of ASDAS to discriminate low and high disease activity and cut-off values are quite similar in patients with AS and non-radiographic axial SpA.

  7. Associations between proinflammatory cytokines in the synovial fluid and radiographic grading and pain-related scores in 47 consecutive patients with osteoarthritis of the knee

    Directory of Open Access Journals (Sweden)

    Yamashita Masaomi

    2011-06-01

    Full Text Available Abstract Background One of the sources of knee pain in osteoarthritis (OA is believed to be related to local chronic inflammation of the knee joints, which involves the production of inflammatory cytokines such as tumor necrosis factor alpha (TNFα, interleukin (IL-6, and nerve growth factor (NGF in the synovial membrane, and these cytokines are believed to promote pathological OA. In the present study, correlations between proinflammatory cytokines in knee synovial fluid and radiographic changes and functional scores and pain scores among OA patients were examined. Methods Synovial fluid was harvested from the knees of 47 consecutive OA patients, and the levels of TNFα, IL-6, and NGF were measured using enzyme-linked immunosorbent assays. Osteoarthritic knees were classified using Kellgren-Lawrence (KL grading (1-4. The Western Ontario and McMaster University Osteoarthritis Index (WOMAC was used to assess self-reported physical function, pain, and stiffness. Results TNFα and IL-6 were detectable in knee synovial, whereas NGF was not. TNFα was not correlated with the KL grade, whereas IL-6 had a significantly negative correlation. We observed differences in the correlations between TNFα and IL-6 with WOMAC scores and their subscales (pain, stiffness, and physical function. TNFα exhibited a significant correlation with the total score and its 3 subscales, whereas IL-6 exhibited a moderately significant negative correlation only with the subscale of stiffness. Conclusions The present study demonstrated that the concentrations of proinflammatory cytokines are correlated with KL grades and WOMAC scores in patients with knee OA. Although TNFα did not have a significant correlation with the radiographic grading, it was significantly associated with the WOMAC score. IL-6 had a significant negative correlation with the KL grading, whereas it had only a weakly significant correlation with the subscore of stiffness. The results suggest that these

  8. Exploration of available feature detection and identification systems and their performance on radiographs

    Science.gov (United States)

    Wantuch, Andrew C.; Vita, Joshua A.; Jimenez, Edward S.; Bray, Iliana E.

    2016-10-01

    Despite object detection, recognition, and identification being very active areas of computer vision research, many of the available tools to aid in these processes are designed with only photographs in mind. Although some algorithms used specifically for feature detection and identification may not take explicit advantage of the colors available in the image, they still under-perform on radiographs, which are grayscale images. We are especially interested in the robustness of these algorithms, specifically their performance on a preexisting database of X-ray radiographs in compressed JPEG form, with multiple ways of describing pixel information. We will review various aspects of the performance of available feature detection and identification systems, including MATLABs Computer Vision toolbox, VLFeat, and OpenCV on our non-ideal database. In the process, we will explore possible reasons for the algorithms' lessened ability to detect and identify features from the X-ray radiographs.

  9. Low dose imaging of scoliosis: Use of a computed radiographic imaging system

    Energy Technology Data Exchange (ETDEWEB)

    Kogutt, M.S.; Kalmar, J.A. (Ochsner Medical Institutions, New Orleans, LA (USA). Dept. of Radiology); Warren, F.H. (Ochsner Medical Institutions, New Orleans, LA (USA). Dept. of Orthopaedics)

    1989-11-01

    A digital radiographic system using the technology of laser stimulated luminescence has been utilized for the evaluation of scoliosis at reduced exposure levels. A total of 412 examinations have been performed on children with scoliosis. Diagnostic images were produced at significantly reduced radiation exposures when compared to standard radiographic techniques. Exposure reductions of 92% to 95% were consistently achieved. Since the potential for multiple examinations and considerable radiation exposure in this patient population is high, this is a significant application in the developing technology of digital radiography. (orig.).

  10. Functioning Without Cartilage: Older People With Radiographic Knee Osteoarthritis Who Self-Report No Functional Limitations Do Score Lower on a Performance Battery.

    Science.gov (United States)

    van Leeuwen, Daniël M; van de Bunt, Fabian; de Ruiter, Cornelis J; van Schoor, Natasja M; Deeg, Dorly J H; Emanuel, Kaj S

    2017-09-18

    The majority of the older population shows signs of radiographic knee osteoarthritis. However, many remain without functional complaints for a long period. This study aims to find early functional changes associated with stages of radiographic knee osteoarthritis. A group of older people without self-reported complaints was divided in two groups: knee osteoarthritis (K&L = 2-4, N = 29) and control (K&L = 0-1, N = 31). Muscle function was assessed with voluntary and electrically-stimulated isometric knee contractions, including a fatigue test. Physical functioning was assessed with a 6-min walk test (6MWT), a stair climb test (SCT), and a short performance battery. There were no differences in muscle function parameters, 6MWT, and SCT between groups. A clinically relevant lower score on the performance battery was found in participants with knee osteoarthritis. In conclusion, even when older people indicate to have no functional limitations, a decline in functional outcome can be measured with a physical performance battery.

  11. An improved automatic computer aided tube detection and labeling system on chest radiographs

    Science.gov (United States)

    Ramakrishna, Bharath; Brown, Matthew; Goldin, Jonathan; Cagnon, Christopher; Enzmann, Dieter

    2012-03-01

    Tubes like Endotracheal (ET) tube used to maintain patient's airway and the Nasogastric (NG) tube used to feed the patient and drain contents of the stomach are very commonly used in Intensive Care Units (ICU). The placement of these tubes is critical for their proper functioning and improper tube placement can even be fatal. Bedside chest radiographs are considered the quickest and safest method to check the placement of these tubes. Tertiary ICU's typically generate over 250 chest radiographs per day to confirm tube placement. This paper develops a new fully automatic prototype computer-aided detection (CAD) system for tube detection on bedside chest radiographs. The core of the CAD system is the randomized algorithm which selects tubes based on their average repeatability from seed points. The CAD algorithm is designed as a 5 stage process: Preprocessing (removing borders, histogram equalization, anisotropic filtering), Anatomy Segmentation (to identify neck, esophagus, abdomen ROI's), Seed Generation, Region Growing and Tube Selection. The preliminary evaluation was carried out on 64 cases. The prototype CAD system was able to detect ET tubes with a True Positive Rate of 0.93 and False Positive Rate of 0.02/image and NG tubes with a True Positive Rate of 0.84 and False Positive Rate of 0.02/image respectively. The results from the prototype system show that it is feasible to automatically detect both tubes on chest radiographs, with the potential to significantly speed the delivery of imaging services while maintaining high accuracy.

  12. Clinical significance of scoring system for systemic inflammatory response syndrome

    Institute of Scientific and Technical Information of China (English)

    HAN Jian; LIANG Hua-ping

    2006-01-01

    The concepts of systemic inflammatory response syndrome (SIRS) and scoring system were defined by the journal of Bone in 1992. SIRS was described as occurrence of two or more clinical criteria in four ones (fever or hypothermia, tachypnea, tachycardia, and leukocytosis).An early diagnosis and estimation of systemic inflammation in patients is helpful for treatment selection. This paper reviews the application of SIRS scoring system, which has been extensively validated for large groups of critical care patients with severe injury and critical surgical diseases.Recent studies have documented SIRS score as a significant predictive parameter of adverse outcome in critical care patients. Furthermore, some studies also give us a suggestion on how to reduce the overload systemic response.

  13. System For The Digitization, Display And Archiving Of Radiographs: Design And Early Experience

    Science.gov (United States)

    Jennings, R. J.; Bruce, M. C.

    1985-06-01

    In this paper we describe a system for the digitization, display, and storage of radiographic images. The system was set up to support a project to assess the clinical impact of matrix size on teleradiology, defined for our purposes as the electronic recording and transmission of radiographs. The system consists of two separate facilities, one for image digitizing and the other for image display, interpretation, and archiving. The image digitizing laboratory uses a solid state scanner interfaced to a dedicated, general-purpose minicomputer. The display facility consists of a general-purpose, multi-user minicomputer with large main memory and disk capacity and a 1280 by 1024 display subsystem with three separate image memories. The two facilities communicate via magnetic tape. This paper documents the characterization of the image data base used for the project, the design and operational features of the two facilities, technical problems encountered in the digitizing and display of radiographs, and some logistical and managerial considerations involved in generating and maintaining a large digital image archive. Since many of the functions of the system we have set up are common to picture archiving and communication systems, we have, where possible, compared the performance of the system we have developed with the requirements that would have to be satisfied by a system intended for clinical use. We leave for future reports the discussion of the conduct of the image reading experiments and the results of those experiments.

  14. Caries status in young Colombian children expressed by the ICCMS™ visual/radiographic combined caries staging system

    DEFF Research Database (Denmark)

    Cortes, Andrea; Ekstrand, Kim Rud; Gamboa, Luis Fernando

    2017-01-01

    OBJECTIVE: To report (1) the caries experience prevalence and mean, and the caries severity and distribution patterns, expressed clinically and combined with radiographs with the conventional and ICCMS™ systems in young children from Bogotá, Colombia; (2) the contribution of including radiographs...

  15. Slit scan radiographic system for intermediate size rocket motors

    Science.gov (United States)

    Bernardi, Richard T.; Waters, David D.

    1992-12-01

    The development of slit-scan radiography capability for the NASA Advanced Computed Tomography Inspection System (ACTIS) computed tomography (CT) scanner at MSFC is discussed. This allows for tangential case interface (bondline) inspection at 2 MeV of intermediate-size rocket motors like the Hawk. Motorized mounting fixture hardware was designed, fabricated, installed, and tested on ACTIS. The ACTIS linear array of x-ray detectors was aligned parallel to the tangent line of a horizontal Hawk motor case. A 5 mm thick x-ray fan beam was used. Slit-scan images were produced with continuous rotation of a horizontal Hawk motor. Image features along Hawk motor case interfaces were indicated. A motorized exit cone fixture for ACTIS slit-scan inspection was also provided. The results of this SBIR have shown that slit scanning is an alternative imaging technique for case interface inspection. More data is required to qualify the technique for bondline inspection.

  16. Brochopulmonary dysplasia: New high resolution computed tomography scorting system and correlation between the high resolution computed tomography score and clinical severity

    Energy Technology Data Exchange (ETDEWEB)

    Shin, Sumi; Kim, Woo Sun; Cheon, Jung Eun; Kim, Han Suk; Lee, Whal; Jung, Ah Young; Kim, In One; Choi, Jung Hwan [Seoul National University College of Medicine, Seoul (KR)

    2013-04-15

    To develop an high resolution computed tomography (HRCT) scoring system for the assessment of bronchopulmonary dysplasia (BPD) and determine its usefulness as compared with the chest radiographic score. Forty-two very low-birth-weight preterm infants with BPD (25 male, 17 female) were prospectively evaluated with HRCT performed at the mean age of 39.1-week postmenstrual age. Clinical severity of BPD was categorized as mild, moderate or severe. The HRCT score (0-36) of each patient was the sum of the number of bronchopulmonary segments with 1) hyperaeration and 2) parenchymal lesions (linear lesions, segmental atelectasis, consolidation and architectural distortion), respectively. We compared the HRCT scores with the chest radiographic scores (the Toce system) in terms of correlation with clinical severity. The HRCT score had good interobserver (r = 0.969, p < 0.001) and intraobserver (r = 0.986, p < 0.001) reproducibility. The HRCT score showed better correlation (r = 0.646, p < 0.001) with the clinical severity of BPD than the chest radiographic score (r = 0.410, p = 0.007). The hyperaeration score showed better correlation (r = 0.738, p < 0.001) with the clinical severity of BPD than the parenchymal score (r = 0.523, p < 0.001). We have developed a new HRCT scoring system for BPD based on the quantitative evaluation of pulmonary abnormalities of BPD consisting of the hyperaeration score and the parenchymal score. The HRCT score shows better correlation with the clinical severity of BPD than the radiographic score.

  17. Introducing the SKIN score: a validated scoring system to assess severity of mastectomy skin flap necrosis.

    Science.gov (United States)

    Lemaine, Valerie; Hoskin, Tanya L; Farley, David R; Grant, Clive S; Boughey, Judy C; Torstenson, Tiffany A; Jacobson, Steven R; Jakub, James W; Degnim, Amy C

    2015-09-01

    With increasing use of immediate breast reconstruction (IBR), mastectomy skin flap necrosis (MSFN) is a clinical problem that deserves further study. We propose a validated scoring system to discriminate MSFN severity and standardize its assessment. Women who underwent skin-sparing (SSM) or nipple-sparing mastectomy (NSM) and IBR from November 2009 to October 2010 were studied retrospectively. A workgroup of breast and plastic surgeons scored postoperative photographs using the skin ischemia necrosis (SKIN) score to assess depth and surface area of MSFN. We evaluated correlation of the SKIN score with reoperation for MSFN and its reproducibility in an external sample of surgeons. We identified 106 subjects (175 operated breasts: 103 SSM, 72 NSM) who had ≥1 postoperative photograph within 60 days. SKIN scores correlated strongly with need for reoperation for MSFN, with an AUC of 0.96 for SSM and 0.89 for NSM. External scores agreed well with the gold standard scores for the breast mound photographs with weighted kappa values of 0.82 (depth), 0.56 (surface area), and 0.79 (composite score). The agreement was similar for the nipple-areolar complex photographs: 0.75 (depth), 0.63 (surface area), and 0.79 (composite score). A simple scoring system to assess the severity of MSFN is proposed, incorporating both depth and surface area of MSFN. The SKIN score correlates strongly with the need for reoperation to manage MSFN and is reproducible among breast and plastic surgeons.

  18. Advanced algorithms for radiographic material discrimination and inspection system design

    Science.gov (United States)

    Gilbert, Andrew J.; McDonald, Benjamin S.; Deinert, Mark R.

    2016-10-01

    X-ray and neutron radiography are powerful tools for non-invasively inspecting the interior of objects. However, current methods are limited in their ability to differentiate materials when multiple materials are present, especially within large and complex objects. Past work has demonstrated that the spectral shift that X-ray beams undergo in traversing an object can be used to detect and quantify nuclear materials. The technique uses a spectrally sensitive detector and an inverse algorithm that varies the composition of the object until the X-ray spectrum predicted by X-ray transport matches the one measured. Here we show that this approach can be adapted to multi-mode radiography, with energy integrating detectors, and that the Cramér-Rao lower bound can be used to choose an optimal set of inspection modes a priori. We consider multi-endpoint X-ray radiography alone, or in combination with neutron radiography using deuterium-deuterium (DD) or deuterium-tritium (DT) sources. We show that for an optimal mode choice, the algorithm can improve discrimination between high-Z materials, specifically between tungsten and plutonium, and estimate plutonium mass within a simulated nuclear material storage system to within 1%.

  19. Computer-aided system for measuring the mandibular cortical width on panoramic radiographs in osteoporosis diagnosis

    Science.gov (United States)

    Arifin, Agus Zainal; Asano, Akira; Taguchi, Akira; Nakamoto, Takashi; Ohtsuka, Masahiko; Tanimoto, Keiji

    2005-04-01

    Osteoporotic fractures are associated with substantial morbidity, increased medical cost and high mortality risk. Several equipments of bone assessment have been developed to identify individuals, especially postmenopausal women, with high risk of osteoporotic fracture; however, a large segment of women with low skeletal bone mineral density (BMD), namely women with high risk of osteoporotic fractures, cannot be identified sufficiently because osteoporosis is asymptomatic. Recent studies have been demonstrating that mandibular inferior cortical width manually measured on panoramic radiographs may be useful for the identification of women with low BMD. Automatic measurement of cortical width may enable us to identify a large number of asymptomatic women with low BMD. The purpose of this study was to develop a computer-aided system for measuring the mandibular cortical width on panoramic radiographs. Initially, oral radiologists determined the region of interest based on the position of mental foramen. Some enhancing image techniques were applied so as to measure the cortical width at the best point. Panoramic radiographs of 100 women who had BMD assessments of the lumbar spine and femoral neck were used to confirm the efficacy of our new system. Cortical width measured with our system was compared with skeletal BMD. There were significant correlation between cortical width measured with our system and skeletal BMD. These correlations were similar with those between cortical width manually measured by the dentist and skeletal BMD. Our results suggest that our new system may be useful for mass screening of osteoporosis.

  20. Classification and Numbering of Dental Radiographs for an Automated Human Identification System

    Directory of Open Access Journals (Sweden)

    Anny Yuniarti

    2012-03-01

    Full Text Available Dental based human identification is commonly used in forensic. This is due to the teeth are resistant to temperatures up to 200°C and are not easily got rotten. Thus, teeth are suit for victim identification of natural disaster, fire, bombing, etc. In this paper, we developed an automated human identification system based on dental radiographs. The system has two main stages, the first stage is to arrange a database consisting of labeled dental radiographs, and the second stage is the searching process in the database in order to retrieve the identification result. Both stages use a number of image processing techniques, classification methods, and a numbering system in order to generate dental radiograph’s features and patterns. Our experiments using 6 bitewing and 10 panoramic radiographs that consist of 119 tooth objects in total, has shown good performance of classification. The accuracy of dental pattern classification and dental numbering system are 91.6 % and 81.5% respectively.

  1. Hemophilic arthropathy. A scoring system for magnetic resonance imaging

    Energy Technology Data Exchange (ETDEWEB)

    Soler, R.; Rodriguez, E.; Marini, M. [Department of Radiology, Hospital Juan Canalejo, Coruna (Spain); Lopez-Fernandez, F. [Department of Hematology, Hospital Juan Canalejo, Coruna (Spain)

    2002-04-01

    The aim of this study was to define a system for scoring hemophilic arthropathy (HA) based on MR findings, providing for objective evaluation of the degree of joint involvement and evolution after on-demand administration of FVIII substitutional therapy or prophylactic treatment. A total of 133 MR examinations (89 basal and 44 during follow-up) were performed in 25 patients. Patients were divided in two groups depending on the therapy received and the length of time that the disease had been evolving at the start of the study. Group I was composed of 10 patients with secondary prophylaxis and group II was composed by 15 treated on demand. T1-weighted and T2*-weighted images performed on a 0.5-T unit were prospectively evaluated. The joint involvement was established on a scale of 0 (no abnormalities), I (minimal amount of hemosiderin), II (large amount of hemosiderin and isolated cartilaginous erosion), III (cartilage destruction, bone erosions, and subchondral cysts) to IV (large internal joint derangement, secondary osteoarthritis and/or ankylosis). At basal MR examination, patients of group I showed no abnormalities (n=28, 75.6%), grade I (n=3), and grade II (n=6) of HA. Patients of group II corresponded to MR grades III (n=21) and IV (n=11) of HA. The MR follow-up showed improvement in three joints of group I and worsening in 5 joints in group I and 2 joints in group II. Early signs of HA were detected in 10 joints with MR imaging but were underestimated on plain radiographs. Advanced degrees of HA were classified as severe under both imaging techniques. Magnetic resonance is the preferred imaging technique to assess HA. The earliest signs of joint damage, detected by MR, are overlooked by plain radiography. The MR scoring system can be used for evaluating HA. Follow-up MR should be performed to evaluate regression or worsening of the abnormalities, primarily in the case of patients with prophylaxis who usually suffer normal or early joint involvement not

  2. Automatic Dialogue Scoring for a Second Language Learning System

    Science.gov (United States)

    Huang, Jin-Xia; Lee, Kyung-Soon; Kwon, Oh-Woog; Kim, Young-Kil

    2016-01-01

    This paper presents an automatic dialogue scoring approach for a Dialogue-Based Computer-Assisted Language Learning (DB-CALL) system, which helps users learn language via interactive conversations. The system produces overall feedback according to dialogue scoring to help the learner know which parts should be more focused on. The scoring measures…

  3. A computer-aided diagnosis system to detect pathologies in temporal subtraction images of chest radiographs

    Science.gov (United States)

    Looper, Jared; Harrison, Melanie; Armato, Samuel G.

    2016-03-01

    Radiologists often compare sequential radiographs to identify areas of pathologic change; however, this process is prone to error, as human anatomy can obscure the regions of change, causing the radiologists to overlook pathology. Temporal subtraction (TS) images can provide enhanced visualization of regions of change in sequential radiographs and allow radiologists to better detect areas of change in radiographs. Not all areas of change shown in TS images, however, are actual pathology. The purpose of this study was to create a computer-aided diagnostic (CAD) system that identifies which regions of change are caused by pathology and which are caused by misregistration of the radiographs used to create the TS image. The dataset used in this study contained 120 images with 74 pathologic regions on 54 images outlined by an experienced radiologist. High and low ("light" and "dark") gray-level candidate regions were extracted from the images using gray-level thresholding. Then, sampling techniques were used to address the class imbalance problem between "true" and "false" candidate regions. Next, the datasets of light candidate regions, dark candidate regions, and the combined set of light and dark candidate regions were used as training and testing data for classifiers by using five-fold cross validation. Of the classifiers tested (support vector machines, discriminant analyses, logistic regression, and k-nearest neighbors), the support vector machine on the combined candidates using synthetic minority oversampling technique (SMOTE) performed best with an area under the receiver operating characteristic curve value of 0.85, a sensitivity of 85%, and a specificity of 84%.

  4. In vitro evaluation of proximal carious lesions using digital radiographic systems.

    Science.gov (United States)

    Vieira, Mayana Soares; Nogueira, Caroline Parente Ribeiro; Silva, Marcos André dos Santos; Bauer, José Roberto de Oliveira; Maia Filho, Etevaldo Matos

    2015-01-01

    The study aimed to compare the sensitivity and specificity of digital radiographic systems for the diagnosis of proximal carious lesions. Extracted human teeth (3 canines, 3 premolars, and 3 molars) were submitted to one of three types of proximal lesions (demineralized area, cavity affecting the enamel alone, and cavity affecting enamel and dentin). Bitewing radiographs were obtained from each system (Sirona, Kodak, and Schick) and evaluated by 12 raters (4 dental students, 4 radiology specialists, and 4 dentists). The chi-squared test was used to determine the frequency of correct diagnoses among the different systems, raters, teeth, and types of lesion. Sensitivity and specificity regarding demineralized areas were calculated for each system. The frequencies of correct diagnoses were found: Schick (70.8%), Kodak (63.9%), Sirona (59.0%), specialists (69.4%), students (62.5%), dentists (61.8%), premolars (70.1%), canines (65.3%), and molars (58.3%). No significant differences were found among the different systems, raters, or teeth (P > 0.05). Sensitivity and specificity were 0.64 and 0.47 (Schick), 0.56 and 0.50 (Sirona), and 0.48 and 0.58 (Kodak). The most correct diagnoses were achieved using the Schick digital system on premolars and evaluated by specialists in radiology. The systems demonstrated low sensitivity and specificity for the diagnosis of demineralized areas.

  5. Evaluation of a Lameness Scoring System for Dairy Cows

    DEFF Research Database (Denmark)

    Thomsen, P T; Munksgaard, L; Tøgersen, F A

    2008-01-01

    Lameness is a major problem in dairy production both in terms of reduced production and compromised animal welfare. A 5-point lameness scoring system was developed based on previously published systems, but optimized for use under field conditions. The scoring system included the words "in most...

  6. Radiographic constant exposure technique

    DEFF Research Database (Denmark)

    Domanus, Joseph Czeslaw

    1985-01-01

    The constant exposure technique has been applied to assess various industrial radiographic systems. Different X-ray films and radiographic papers of two producers were compared. Special attention was given to fast film and paper used with fluorometallic screens. Radiographic image quality...... was tested by the use of ISO wire IQI's and ASTM penetrameters used on Al and Fe test plates. Relative speed and reduction of kilovoltage obtained with the constant exposure technique were calculated. The advantages of fast radiographic systems are pointed out...

  7. Validation of a new scoring system: Rapid assessment faecal incontinence score

    Institute of Scientific and Technical Information of China (English)

    Fernando; de; la; Portilla; Arantxa; Calero-Lillo; Rosa; M; Jiménez-Rodríguez; Maria; L; Reyes; Manuela; Segovia-González; María; Victoria; Maestre; Ana; M; García-Cabrera

    2015-01-01

    AIM: To implement a quick and simple test- rapid assessment faecal incontinence score(RAFIS) and show its reliability and validity.METHODS: From March 2008 through March 2010, we evaluated a total of 261 consecutive patients, including 53 patients with faecal incontinence. Demographic and comorbidity information was collected. In a single visit, patients were administered the RAFIS. The results obtained with the new score were compared with those of both Wexner score and faecal incontinence quality of life scale(FIQL) questionnaire. The patient withoutinfluence of the surgeon completed the test. The role of surgeon was explaining the meaning of each section and how he had to fill. Reliability of the RAFIS score was measured using intra-observer agreement and Cronbach’s alpha(internal consistency) coefficient. Multivariate analysis of the main components within the different scores was performed in order to determine whether all the scores measured the same factor and to conclude whether the information could be encompassed in a single factor. A sample size of 50 patients with faecal incontinence was estimated to be enough to detect a correlation of 0.55 or better at 5% level of significance with 80% power.RESULTS: We analysed the results obtained by 53 consecutive patients with faecal incontinence(median age 61.55 ± 12.49 years) in the three scoring systems. A total of 208 healthy volunteers(median age 58.41 ± 18.41 years) without faecal incontinence were included in the study as negative controls. Pearson’s correlation coefficient between "state" and "leaks" was excellent(r = 0.92, P < 0.005). Internal consistency in the comparison of "state" and "leaks" yielded also excellent correlation(Cronbach’s α = 0.93). Results in each score were compared using regression analysis and a correlation value of r = 0.98 was obtained with Wexner score. As regards FIQL questionnaire, the values of "r " for the different subscales of the questionnaire were: "lifestyle" r

  8. Reliable and reproducible classification system for scoliotic radiograph using image processing techniques.

    Science.gov (United States)

    Anitha, H; Prabhu, G K; Karunakar, A K

    2014-11-01

    Scoliosis classification is useful for guiding the treatment and testing the clinical outcome. State-of-the-art classification procedures are inherently unreliable and non-reproducible due to technical and human judgmental error. In the current diagnostic system each examiner will have diagrammatic summary of classification procedure, number of scoliosis curves, apex level, etc. It is very difficult to define the required anatomical parameters in the noisy radiographs. The classification system demands automatic image understanding system. The proposed automated classification procedures extracts the anatomical features using image processing and applies classification procedures based on computer assisted algorithms. The reliability and reproducibility of the proposed computerized image understanding system are compared with manual and computer assisted system using Kappa values.

  9. Various scoring systems for predicting mortality in Intensive Care Unit

    African Journals Online (AJOL)

    2015-12-07

    Dec 7, 2015 ... characteristic (ROC) curve was used to determine a cut‑off value for mortality and .... present study aimed to compare the third generation scoring systems .... Doganay Z. Scoring systems for intensive care unit. In: Şahinoğlu ...

  10. Radiation dosage reduction in general dental practice using digital intraoral radiographic systems.

    Science.gov (United States)

    Hayakawa, Y; Shibuya, H; Ota, Y; Kuroyanagi, K

    1997-02-01

    This report describes the radiation dosage reduction possible in the general dental practice with two CCD (charge-coupled device)-based intraoral radiographic systems: the RVG-S (Trophy Radiologie, Vincennes, France) and the Sens-A-Ray (Regam Medical Systems, Sundsvall, Sweden). Radiation dosages (air-kerma; Gy) necessary for obtaining clinically acceptable images were measured at the cone tip using an ionization chamber type 660-1 (Nuclear Associates, Victoreen, Inc., Carle Place, New York, USA). When the RVG-S was used with an Oramatic 70 (Trophy Radiologie) X-ray generator, dosages at the cone tip ranged from 322 to 612 microGy. These corresponded to 40-60% of the dosages necessary when using Ektaspeed dental X-ray film (Eastman Kodak, Rochester, New York, USA) with a Heliodent 70 (Siemens, Erlangen, Germany) X-ray generator. At 60 kVp, the Sens-A-Ray reduced the dosage in the order of 30% compared with Ektaspeed dental X-ray film. Reduction in radiation dosage is one of the benefits of digital intraoral radiographic systems in general dental clinics. The RVG-S provides greater dose savings than does the Sens-A-Ray.

  11. Control system of mobile radiographic complex to study equations of state of substances

    Science.gov (United States)

    Belov, O. V.; Valekzhanin, R. V.; Kustov, D. V.; Shamro, O. A.; Sharov, T. V.

    2017-05-01

    A source of x-ray radiation is one of the tools to study equations of state of substances in dynamics. The mobile radiographic bench based on BIM-1500 [1] was developed in RFNC-VNIIEF to increase output parameters of the x-ray radiation source. From automated control system side, BIM-1500 is a set of six high-voltage generators based on the capacitive energy storage, technological equipment, and elements of a blocking system. This paper considers automated control system of the mobile radiographic bench MCA BIM 1500. It consists of six high-voltage generator control circuits, synchronization subsystem, and block subsystem. The object of control has some peculiarities: high level of electromagnetic noise, remoteness of the control panel from the object of control. In connection with this, the coupling devices are arranged closer to the object of control and performed in the form of a set of galvanically insulated control units, which are combined into a net. The operator runs MCA BIM using the operator’s screens on PC or by means of manual control on the equipment in the mode of debugging. The control software provides performance of the experiment in automatic regime in accordance with preset settings. The operator can stop the experiment at the stage of charging the capacitive storage.

  12. Chest radiograph reading and recording system: evaluation in frontline clinicians in Zambia.

    Science.gov (United States)

    Henostroza, German; Harris, Jennifer B; Kancheya, Nzali; Nhandu, Venerandah; Besa, Stable; Musopole, Robert; Krüüner, Annika; Chileshe, Chisela; Dunn, Ian J; Reid, Stewart E

    2016-03-23

    In Zambia the vast majority of chest radiographs (CXR) are read by clinical officers who have limited training and varied interpretation experience, meaning lower inter-rater reliability and limiting the usefulness of CXR as a diagnostic tool. In 2010-11, the Zambian Prison Service and Ministry of Health established TB and HIV screening programs in six prisons; screening included digital radiography for all participants. Using front-line clinicians we evaluated sensitivity, specificity and inter-rater agreement for digital CXR interpretation using the Chest Radiograph Reading and Recording System (CRRS). Digital radiographs were selected from HIV-infected and uninfected inmates who participated in a TB and HIV screening program at two Zambian prisons. Two medical officers (MOs) and two clinical officers (COs) independently interpreted all CXRs. We calculated sensitivity and specificity of CXR interpretations compared to culture as the gold standard and evaluated inter-rater reliability using percent agreement and kappa coefficients. 571 CXRs were included in analyses. Sensitivity of the interpretation "any abnormality" ranged from 50-70 % depending on the reader and the patients' HIV status. In general, MO's had higher specificities than COs. Kappa coefficients for the ratings of "abnormalities consistent with TB" and "any abnormality" showed good agreement between MOs on HIV-uninfected CXRs and moderate agreement on HIV-infected CXRs whereas the COs demonstrated fair agreement in both categories, regardless of HIV status. Sensitivity, specificity and inter-rater agreement varied substantially between readers with different experience and training, however the medical officers who underwent formal CRRS training had more consistent interpretations.

  13. Scoring systems for predicting mortality after liver transplantation.

    Directory of Open Access Journals (Sweden)

    Heng-Chih Pan

    Full Text Available BACKGROUND: Liver transplantation can prolong survival in patients with end-stage liver disease. We have proposed that the Sequential Organ Failure Assessment (SOFA score calculated on post-transplant day 7 has a great discriminative power for predicting 1-year mortality after liver transplantation. The Chronic Liver Failure-Sequential Organ Failure Assessment (CLIF-SOFA score, a modified SOFA score, is a newly developed scoring system exclusively for patients with end-stage liver disease. This study was designed to compare the CLIF-SOFA score with other main scoring systems in outcome prediction for liver transplant patients. METHODS: We retrospectively reviewed medical records of 323 patients who had received liver transplants in a tertiary care university hospital from October 2002 to December 2010. Demographic parameters and clinical characteristic variables were recorded on the first day of admission before transplantation and on post-transplantation days 1, 3, 7, and 14. RESULTS: The overall 1-year survival rate was 78.3% (253/323. Liver diseases were mostly attributed to hepatitis B virus infection (34%. The CLIF-SOFA score had better discriminatory power than the Child-Pugh points, Model for End-Stage Liver Disease (MELD score, RIFLE (risk of renal dysfunction, injury to the kidney, failure of the kidney, loss of kidney function, and end-stage kidney disease criteria, and SOFA score. The AUROC curves were highest for CLIF-SOFA score on post-liver transplant day 7 for predicting 1-year mortality. The cumulative survival rates differed significantly for patients with a CLIF-SOFA score ≤8 and those with a CLIF-SOFA score >8 on post-liver transplant day 7. CONCLUSION: The CLIF-SOFA score can increase the prediction accuracy of prognosis after transplantation. Moreover, the CLIF-SOFA score on post-transplantation day 7 had the best discriminative power for predicting 1-year mortality after liver transplantation.

  14. Severity assessment of acute pancreatitis: applying Marshall scoring system

    Directory of Open Access Journals (Sweden)

    André Lanza Carioca

    2015-10-01

    Full Text Available Objective: To analyze the effectiveness of the Marshall scoring system to evaluate the severity of acute pancreatitis (AP. Methods : We performed a prospective, observational study in 39 patients with AP evaluated by the Marshall scoring system and the Ranson criteria (admission and 48 hours. We assessed the progression of the disease for seven days and compared the data of the two criteria. Results : Seven patients died during the observation period and one died afterwards. All deaths had shown failure of at least one system by the Marshall method. Conclusion : The Marshall scoring system may be used as an effective and simplified application method to assess the severity of acute pancreatitis.

  15. A novel classification system for assessment of approximal caries lesion progression in bitewing radiographs.

    Science.gov (United States)

    Senneby, Anna; Elfvin, Margareta; Stebring-Franzon, Christina; Rohlin, Madeleine

    2016-01-01

    To design and pilot a novel classification system for the assessment of caries lesion progression in bitewing radiography and to report rater agreement of the system. A classification system with drawings and text was designed to assess caries lesion progression. Guidelines for Reporting Reliability and Agreement Studies were used to study and report rater agreement. Pairs of posterior bitewing radiographs (baseline and 1-year follow-up) with different status concerning caries lesion progression were selected from files from public dental health clinics. 10 raters, 5 general dental practitioners and 5 specialists in oral and maxillofacial radiology were asked to assess the radiographs with the aid of the classification system. Seven raters repeated their assessments. Rater agreement was expressed as percentage of agreement and kappa. Kappa for the interrater agreement of 10 raters assessing progression was 0.61, indicating substantial agreement. Agreement was moderate for progression in the outer half of the dentine (kappa 0.55) and within enamel (kappa 0.44). Pairwise interrater agreement varied (range 69-92%; kappa 0.42-0.84). For about half of the pairs of raters, kappa was substantial (≥0.61). Intrarater agreement assessing progression was substantial (kappa 0.66-0.82). We demonstrated the applicability of the proposed classification system on caries lesion progression with respect to rater agreement. This system can provide a common framework for clinical decision-making on caries interventional methods and patient visiting intervals. Scientifically, this system allows for a comparative analysis of different methods of prevention and treatment of caries as well as of different caries risk assessment methods.

  16. [Validation of a diagnostic scoring system (Ohmann score) in acute appendicitis].

    Science.gov (United States)

    Zielke, A; Sitter, H; Rampp, T A; Schäfer, E; Hasse, C; Lorenz, W; Rothmund, M

    1999-07-01

    A diagnostic scoring system, recently published by Ohmann et al. in this journal, was validated by analyzing the clinicopathological data of a consecutive series of 2,359 patients, admitted for suspicion of acute appendicitis. The results of the scoring system were compared to the results of clinical evaluation by junior (provisional) and senior surgeons (final clinical diagnosis). To assess the diagnostic ability of the score, the accuracy and positive predictive value were defined as the major diagnostic performance parameters; the rate of theoretical negative laparotomies and that of diagnostic errors served as the major procedural performance parameters. Of 2,359 patients admitted for suspected acute appendicitis, 662 were proven to have acute appendicitis by histology, for a prevalence of 28%. The overall sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of the provisional clinical diagnosis were 0.50, 0.94, 0.77, 0.83, and 0.82; 0.93, for the score 0.63, 0.93, 0.77, 0.86 and 0.84, and for the final clinical diagnosis 0.90, 0.94, 0.85, 0.96, and 0.93, respectively. Of the main diagnostic performance parameter, the accuracy of the score was significantly better than that of provisional clinical diagnosis (P apendicitis, the score demonstrated a superior performance, with only 6 cases missed (0.9%). However, the number of patients with acute appendicitis, including those with perforated disease, who were not identified by the score, was almost four times that of the final clinical diagnosis (245 vs 63). With regard to the main procedural performance parameter, the score resulted in a significantly smaller number of diagnostic errors than the provisional clinical investigator (P < 0.05, chi 2 test). The results of this study indicate that the diagnostic scoring system might be helpful when experienced investigators or additional diagnostic modalities such as ultrasonography are not available. It may therefore be of value

  17. Symptom scoring systems to diagnose distal polyneuropathy in diabetes : the Diabetic Neuropathy Symptom score

    NARCIS (Netherlands)

    Meijer, J.W.G.; Smit, A.J.; van Sonderen, E.; Groothoff, J.W.; Eisma, W.H.; Links, T.P.

    2002-01-01

    AIMS: To provide one of the diagnostic categories for distal diabetic polyneuro-pathy,several symptom scoring systems are available, which are often extensive andlack in validation. We validated a new four-item Diabetic Neuropathy Symptom (DNS) scorefor diagnosing distal diabetic polyneuropathy. MET

  18. Classification of weld defect based on information fusion technology for radiographic testing system

    Science.gov (United States)

    Jiang, Hongquan; Liang, Zeming; Gao, Jianmin; Dang, Changying

    2016-03-01

    Improving the efficiency and accuracy of weld defect classification is an important technical problem in developing the radiographic testing system. This paper proposes a novel weld defect classification method based on information fusion technology, Dempster-Shafer evidence theory. First, to characterize weld defects and improve the accuracy of their classification, 11 weld defect features were defined based on the sub-pixel level edges of radiographic images, four of which are presented for the first time in this paper. Second, we applied information fusion technology to combine different features for weld defect classification, including a mass function defined based on the weld defect feature information and the quartile-method-based calculation of standard weld defect class which is to solve a sample problem involving a limited number of training samples. A steam turbine weld defect classification case study is also presented herein to illustrate our technique. The results show that the proposed method can increase the correct classification rate with limited training samples and address the uncertainties associated with weld defect classification.

  19. Classification of weld defect based on information fusion technology for radiographic testing system.

    Science.gov (United States)

    Jiang, Hongquan; Liang, Zeming; Gao, Jianmin; Dang, Changying

    2016-03-01

    Improving the efficiency and accuracy of weld defect classification is an important technical problem in developing the radiographic testing system. This paper proposes a novel weld defect classification method based on information fusion technology, Dempster-Shafer evidence theory. First, to characterize weld defects and improve the accuracy of their classification, 11 weld defect features were defined based on the sub-pixel level edges of radiographic images, four of which are presented for the first time in this paper. Second, we applied information fusion technology to combine different features for weld defect classification, including a mass function defined based on the weld defect feature information and the quartile-method-based calculation of standard weld defect class which is to solve a sample problem involving a limited number of training samples. A steam turbine weld defect classification case study is also presented herein to illustrate our technique. The results show that the proposed method can increase the correct classification rate with limited training samples and address the uncertainties associated with weld defect classification.

  20. High disease activity according to the Ankylosing Spondylitis Disease Activity Score is associated with accelerated radiographic spinal progression in patients with early axial spondyloarthritis: results from the GErman SPondyloarthritis Inception Cohort.

    Science.gov (United States)

    Poddubnyy, Denis; Protopopov, Mikhail; Haibel, Hildrun; Braun, Jürgen; Rudwaleit, Martin; Sieper, Joachim

    2016-12-01

    The aim of this work was to investigate the association between disease activity measured by the Ankylosing Spondylitis Disease Activity Score (ASDAS) and radiographic spinal progression in patients with early axial spondyloarthritis (axSpA). Altogether, 178 patients with definite axSpA (100 with ankylosing spondylitis and 78 with non-radiographic axSpA) were included. Spinal radiographs (baseline and year 2) were assessed according to the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) and for the presence of syndesmophytes. Clinical and lab data were collected at baseline and every 6 months thereafter. Time-averaged (over 2 years) values of the C-reactive protein based ASDAS were calculated. There was a clear positive association between disease activity according to ASDAS and radiographic spinal progression. In the logistic regression analysis, mSASSS progression by ≥2 points over 2 years was significantly associated with the time-averaged ASDAS: unadjusted OR=1.64 (95% CI 1.03 to 2.62), adjusted (for presence of syndesmophytes at baseline, smoking status and intake of non-steroidal anti-inflammatory drugs) OR=1.80 (95% CI 1.04 to 3.13). Syndesmophyte formation/progression demonstrated an even stronger association with the time-averaged ASDAS: unadjusted OR=2.62 (95% CI 1.46 to 4.68), adjusted OR=2.45 (95% CI 1.26 to 4.77). Persisting high disease activity according to the ASDAS is associated with accelerated radiographic spinal progression in early axSpA. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  1. Predictive value of semi-quantitative MRI-based scoring systems for future knee replacement: data from the osteoarthritis initiative

    Energy Technology Data Exchange (ETDEWEB)

    Hafezi-Nejad, Nima; Eng, John; Demehri, Shadpour [Johns Hopkins University School of Medicine, Musculoskeletal Radiology, Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD (United States); Zikria, Bashir [Johns Hopkins University, Department of Orthopedic Surgery, Baltimore, MD (United States); Carrino, John A. [Hospital for Special Surgery, Department of Radiology and Imaging, New York, NY (United States)

    2015-11-15

    To evaluate, in a confirmatory fashion, whether baseline and change from baseline to 24-month follow-up in cartilage damage, bone marrow lesions and meniscal damage are predictors of knee replacement (KR) in subjects with a high risk of osteoarthritis (OA), independent of the level of physical activity, symptom severity and radiographic abnormalities. Data from the Osteoarthritis Initiative's (OAI) baseline and 24-month follow-up knee MRIs of 115 patients (age range: 45-78 years; 48 % female; BMI: 20.9-48.7) were analyzed. Cartilage, bone marrow and menisci were semi-quantitatively scored according to the Whole-Organ Magnetic Resonance Imaging Score (WORMS) and Boston-Leeds Osteoarthritis Knee Score (BLOKS) systems in all compartments. Baseline and 24-month interval changes in structural tissue damage assessed by BLOKS and WORMS were used as predictors of KR independent of clinical and radiographic parameters using Cox hazard analysis. Adjustments were performed for age, gender, BMI and physical activity (Physical Activity Scale for the Elderly: PASE), Western Ontario and McMaster Questionnaire (WOMAC) total score and radiographic Kellgren-Lawrence (KL) score. BLOKS and WORMS baseline cartilage scores were predictors of KR independent of the PASE, WOMAC and KL score. One score increase in the average baseline BLOKS full-thickness cartilage defect score was associated with a [hazard ratio (95 % CI)] 13.55 (3.61-50.89) times greater risk of KR independent of the PASE, WOMAC and KL score. Net reclassification improvements (NRIs) of the additional evaluation of 24-month follow-up MRI scores and assessment of changes were not significant for prediction of KR (NRI range: - 7.23 - 24.8 %). The BLOKS cartilage score for full-thickness cartilage defects had the highest hazard for KR. Follow-up MRI changes in structural tissue damage, detected by BLOKS and WORMS cartilage, bone marrow or meniscus scores (up to 24 months) had no significant predictive value in addition

  2. Establishing a risk scoring system for predicting erosive esophagitis

    Directory of Open Access Journals (Sweden)

    Hung-Hsu Hung

    2016-09-01

    Conclusion: This simple noninvasive risk scoring system, including factors of age, gender, body mass index, waist circumference, triglyceride, and high-density lipid cholesterol, effectively predicted EE and stratified its incidence.

  3. A comparative study of diagnostic scoring systems for autoimmune pancreatitis

    NARCIS (Netherlands)

    J. Buijs (Jorie); M. van Heerde (Marianne); E.A.J. Rauws (Erik); L.J.M. De Buy Wenniger (Lucas J. Maillette); B.E. Hansen (Bettina); K. Biermann (Katharina); J. Verheij (Joanne); F.P. Vleggaar (Frank); M.A. Brink (Menno); U. Beuers (Ulrich); E.J. Kuipers (Ernst); H.R. van Buuren (Henk); M.J. Bruno (Marco)

    2014-01-01

    textabstractOBJECTIVE: Several diagnostic scoring systems for autoimmune pancreatitis (AIP) have been proposed including the Asian, HISORt (Histology, Imaging, Serology, Other organ involvement and Response to therapy), and International Consensus Diagnostic Criteria (ICDC), which have been compared

  4. Endoscopic scoring systems for inflammatory bowel disease: pros and cons.

    Science.gov (United States)

    Tontini, Gian Eugenio; Bisschops, Raf; Neumann, Helmut

    2014-07-01

    Endoscopy plays a pivotal role for diagnosis and assessment of disease activity and extent in patients with inflammatory bowel diseases. International guidelines recommend the use of endoscopic scoring systems for evaluation of the prognosis and efficacy of medical treatments. Ideal scoring systems are easy to use, reproducible, reliable, responsive to changes, and validated in different clinical settings in order to guide therapeutic strategies. However, currently available endoscopic scoring systems often appear as complex for routine endoscopy and suffer from insufficient interobserver agreement and lack of formal validation which often limit their use in clinical trials. Here, we describe the role of endoscopic scoring systems in inflammatory bowel diseases focusing on pros and cons in the era of advanced endoscopic imaging and mucosal healing.

  5. Similar group mean scores, but large individual variations, in patient-relevant outcomes over 2 years in meniscectomized subjects with and without radiographic knee osteoarthritis

    DEFF Research Database (Denmark)

    Paradowski, Przemyslaw T; Englund, Martin; Roos, Ewa M.;

    2004-01-01

    or individual levels. Such information is needed for identification of study cohorts and planning of clinical trials. The aim of the study was, thus, to assess the variation in pain and function on group and individual level over 2 years in previously meniscectomized individuals with and without radiographic...

  6. The Canadian Systemic Sclerosis Oral Health Study IV: oral radiographic manifestations in systemic sclerosis compared with the general population

    Science.gov (United States)

    Dagenais, Marie; MacDonald, David; Baron, Murray; Hudson, Marie; Tatibouet, Solène; Steele, Russell; Gravel, Sabrina; Mohit, Shrisha; Sayegh, Tarek El; Pope, Janet; Fontaine, Audrey; Masseto, Ariel; Matthews, Debora; Sutton, Evelyn; Thie, Norman; Jones, Niall; Copete, Maria; Kolbinson, Dean; Markland, Janet; Nogueira-Filho, Getulio; Robinson, David; Gornitsky, Mervyn

    2015-01-01

    Objective The aim of this study was to compare oral radiologic abnormalities associated with systemic sclerosis (SSc) against abnormalities in the general population. Study Design Patients with SSc and healthy controls were enrolled in a multi-site cross-sectional study. Included in the radiology examination were a panoramic radiograph, four bitewings, and an anterior mandibular periapical radiograph. Radiographs were evaluated by two oral and maxillofacial radiologists tested for interobserver and intraobserver reliability. Chi-squared tests, Fisher exact tests, and Mann Whitney U tests were used to summarize the radiologic manifestations of patients and controls. Results We assessed 163 SSc patients and 231 controls. Widening of the periodontal ligament space (PLS) (P < .001), with higher percentage of teeth with PLS widening (P < .001), was significantly more frequent in patients with SSc than in controls. The most significant differences between the two groups were found in the molars and premolars (P < .001). Moreover, 26% of the patients with SSc had a periapical PLS greater than 0.19 mm compared with 13% of the controls (P = .003). Patients with SSc had significantly more erosions compared with controls (14.5% vs. 3.6%; P < .001), mostly in the condyles (P = .022), coronoid processes (P = .005) and other locations (P = .012). Conclusion Patients with SSc had more teeth with PLS widening and erosions of the mandible compared with controls. PMID:25959972

  7. A Study on Automatic Scoring for Machine Translation Systems

    Institute of Scientific and Technical Information of China (English)

    Yao Jianmin(姚建民); Zhang Jing; Zhao Tiejun; Li Sheng

    2004-01-01

    String similarity measures of edit distance, cosine correlation and Dice coefficient are adopted to evaluate machine translation results. Experiment shows that the evaluation method distinguishes well between "good" and "bad" translations. Another experiment manifests a consistency between human and automatic scorings of 6 general-purpose MT systems. Equational analysis validates the experimental results. Although the data and graphs are very promising, correlation coefficient and significance tests at 0.01 level are made to ensure the reliability of the results. Linear regression is made to map the automatic scoring results to human scorings.

  8. Modified inverse square sensitometry for the determination of the characteristic curve of radiographic screen/film systems.

    Directory of Open Access Journals (Sweden)

    Yoshida,Akira

    1986-02-01

    Full Text Available To determine the characteristic curve of the radiographic screen/film systems in a short focal spot-film distance, the inverse square sensitometric method was modified by changing the radiation intensity with two kinds of filters. The characteristic curves obtained in the two exposure series with these two kinds of filters were overlapped to obtain a complete one. The characteristic curve thus obtained was almost the same as the one obtained by the original inverse square sensitometric method. The accuracy of the characteristic curves obtained by the modified method was well-reflected in the clinical radiographs.

  9. The function-transferring model construction for X-ray digital radiographic system

    Science.gov (United States)

    Xiao, Wang; Yan, Han; Guo, Wenming

    2008-02-01

    This paper is aimed at presenting a renovated model-building method of transfer function for industrial X-ray digital radiography based on the amorphous silicon X-ray flat-panel detector. The system, known as point-spreading function (PSF), is composed of three parts: the system geometrical dispersion with a non-spot power source, the scintillating screen dispersion and the aperture sampling of the pixel detector. For the innovation purpose, we have first of all established a mathematical simulation of the PSF and the modulation transfer function (MTF) on the basis of analyzing the intensity distribution of X-ray penetration area in each part and by taking Gaussian functions as a mathematical equation for depicting the transfer behavior of each part of the system. And, then, we have worked out the approximately effective bandwidth of the system from its half-wave width. And, finally, by taking the digital radiography based on the flat-panel detector for sampling, the paper has provided a theoretical foundation for the industrial X-ray radiographic testing and measurement operation. In addition, the author has also estimated the validation of the model through experiments and proved that the method helps to make high resolutions of the diacritical tiniest details in the work-pieces, which has shown and will show its technical rationality, technical appropriateness and practical working value.

  10. Radiographic Test

    Energy Technology Data Exchange (ETDEWEB)

    Lee, H.J; Yang, S.H. [Korea Electric Power Research Institute, Taejon (Korea)

    2002-07-01

    This report contains theory, procedure technique and interpretation of radiographic examination and written for whom preparing radiographic test Level II. To determine this baseline of technical competence in the examination, the individual must demonstrate a knowledge of radiography physics, radiation safety, technique development, radiation detection and measurement, facility design, and the characteristics of radiation-producing devices and their principles of operation. (author) 98 figs., 23 tabs.

  11. Radiographic tales

    DEFF Research Database (Denmark)

    Mussmann, Bo Redder

    2007-01-01

    . Methods The study is designed as an observational study with a narrative approach. The participant observations took place in a Danish radiological department and involved 20 examinations followed up by three semi-structured interviews. Conclusions Through emergent narratives radiographers construct...... of their narrative alertness. Errors and failure to keep the time schedule can, however, lead the radiographers to a change of perspective that makes them displace man from the scene of radiography by playing on the premises of technology....

  12. A Novel scoring system for distinguishing keratoconus from normal eyes.

    Science.gov (United States)

    Oruçoğlu, Faik; Toker, Ebru

    2016-10-01

    To evaluate the accuracy of a novel scoring system in differentiation of keratoconus (KC) eyes from normal eyes using a Scheimpflug camera system tomography. Marmara University Hospital, Istanbul, Turkey and Birinci Eye Hospital, Istanbul, Turkey. Retrospective case-control study. The study included 624 keratoconus eyes and 512 healthy eyes. Thirty nine significant parameters obtained from the Scheimpflug imaging system (Pentacam-Oculus Optikgeräte GmbH, Wetzlar, Germany) were studied. The cut-off value and area under receiver operating characteristic (AUROC) curve analysis for each studied parameter were established in the previous study. Minus three and plus three standard deviations of the cut-off value were scored after multiplication of AUROC for each parameter. The sum of all scores (TKS; Total Keratoconus Score) was compared between keratoconus and normal eyes. Average TKS value was -29.57±5.65 (Range from -43.11 to -7.09) in normal eyes and 36.23±24.3 (Range from -16.82 to 97.45) in keratoconus eyes (pkeratoconus group from the normal group with 99% sensitivity and 99% specificity at the best cut-off point of -12.45. The new scoring system measured by the Scheimpflug imaging system provides perfect discrimination of keratoconus from normal corneas. Copyright © 2016 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.

  13. Evaluation of prognostic factors and scoring system in colonic perforation

    Institute of Scientific and Technical Information of China (English)

    Atsushi Horiuchi; Yuji Watanabe; Takashi Doi; Kouichi Sato; Syungo Yukumi; Motohira Yoshida; Yuji Yamamoto; Hiroki Sugishita; Kanji Kawachi

    2007-01-01

    AIM: To study the significance of scoring systems assessing severity and prognostic factors in patients with colonic perforation.METHODS: A total of 26 patients (9 men, 17 women;mean age 72.7±11.6 years) underwent emergency operation for colorectal perforation in our institution between 1993 and 2005. Several clinical factors were measured preoperatively and 24 h postoperatively. Acute physiology and chronic health evaluationⅡ (APACHE Ⅱ),Mannheim peritonitis index (MPI) and peritonitis index of Altona (PIA Ⅱ) scores were calculated preoperatively.RESULTS: Overall postoperative mortality rate was 23.1% (6 patients). Compared with survivors, nonsurvivors displayed low blood pressure, low serum protein and high serum creatinine preoperatively, and low blood pressure, low white blood cell count, low pH,low PaO2/FiO2, and high serum creatinine postoperatively.APACHE Ⅱ score was significantly lower in survivors than in non-survivors (10.4±3.84 vs19.3±2.87, P= 0.00003). Non-survivors tended to display high MPI score and low PIA Ⅱ score, but no significant difference was identified.CONCLUSION: Pre- and postoperative blood pressure and serum creatinine level appear related to prognosis of colonic perforation. APACHE Ⅱ score is most associated with prognosis and scores ≥ 20 are associated with significantly increased mortality rate.

  14. Novel prognostic scoring system after surgery for Klatskin tumor.

    Science.gov (United States)

    Kaiser, Gernot M; Paul, Andreas; Sgourakis, George; Molmenti, Ernesto P; Dechêne, Alexander; Trarbach, Tanja; Stuschke, Martin; Baba, Hideo A; Gerken, Guido; Sotiropoulos, Georgios C

    2013-01-01

    Klatskin tumor is a rare hepatobiliary malignancy whose outcome and prognostic factors are not clearly documented. Between April 1998 and January 2007, 96 patients with hilar cholangiocarcinoma underwent resection. Data were collected prospectively. Thirty-one variables were evaluated for prognostic significance. There were 40 trisectionectomies, 40 hemihepatectomies, five central hepatectomies, and 11 biliary hilar resections. Thirty-seven (n = 37) patients required vascular reconstruction. There were 68 R0, 26 R1, and two R2 resections. Age (P = 0.048), pT status (P = 0.046), R class (P = 0.034), and adjuvant chemoradiation (P = 0.045) showed predictive significance by multivariate Cox proportional hazard regression analysis. A point scoring system was determined as follows: age younger than 62 years:age 62 years or older = 1:2 points; pT1:pT2 to 4 = 1:2 points; R0:R1/2 = 1:2 points; and chemoradiation yes:no = 1:2 points. The only model that reached statistical significance (P = 0.0332) described the following three groups: score 6 or less; score = 7; and score = 8. Median survival for score 6 or less, score = 7, and score = 8 was 26.5, 12, and 2.2 months, respectively (P = 0.032). The corresponding 1- and 3-year survival rates were 73 to 56 per cent, 52 to 38 per cent, and 17 to 0 per cent, respectively. We propose a scoring system predictive of long-term surgical outcome that could potentially improve patient selection for further postoperative oncologic treatment for Klatskin tumors.

  15. Catheter detection and classification on chest radiographs: an automated prototype computer-aided detection (CAD) system for radiologists

    Science.gov (United States)

    Ramakrishna, Bharath; Brown, Matthew; Goldin, Jonathan; Cagnon, Chris; Enzmann, Dieter

    2011-03-01

    Chest radiographs are the quickest and safest method to check placement of man-made medical devices placed in the body like catheters, stents and pacemakers etc out of which catheters are the most commonly used devices. The two most often used catheters especially in the ICU are the Endotracheal (ET) tube used to maintain patient's airway and the Nasogastric (NG) tube used to feed and administer drugs. Tertiary ICU's typically generate over 250 chest radiographs per day to confirm tube placement. Incorrect tube placements can cause serious complications and can even be fatal. The task of identifying these tubes on chest radiographs is difficult for radiologists and ICU personnel given the high volume of cases. This motivates the need for an automatic detection system to aid radiologists in processing these critical cases in a timely fashion while maintaining patient safety. To-date there has been very little research in this area. This paper develops a new fully automatic prototype computer-aided detection (CAD) system for detection and classification of catheters on chest radiographs using a combination of template matching, morphological processing and region growing. The preliminary evaluation was carried out on 25 cases. The prototype CAD system was able to detect ET and NG tubes with sensitivities of 73.7% and 76.5% respectively and with specificities of 91.3% and 84.0% respectively. The results from the prototype system show that it is feasible to automatically detect both catheters on chest radiographs, with the potential to significantly speed the delivery of imaging services while maintaining high accuracy.

  16. 2-D-3-D frequency registration using a low-dose radiographic system for knee motion estimation.

    Science.gov (United States)

    Jerbi, Taha; Burdin, Valerie; Leboucher, Julien; Stindel, Eric; Roux, Christian

    2013-03-01

    In this paper, a new method is presented to study the feasibility of the pose and the position estimation of bone structures using a low-dose radiographic system, the entrepreneurial operating system (designed by EOS-Imaging Company). This method is based on a 2-D-3-D registration of EOS bi-planar X-ray images with an EOS 3-D reconstruction. This technique is relevant to such an application thanks to the EOS ability to simultaneously make acquisitions of frontal and sagittal radiographs, and also to produce a 3-D surface reconstruction with its attached software. In this paper, the pose and position of a bone in radiographs is estimated through the link between 3-D and 2-D data. This relationship is established in the frequency domain using the Fourier central slice theorem. To estimate the pose and position of the bone, we define a distance between the 3-D data and the radiographs, and use an iterative optimization approach to converge toward the best estimation. In this paper, we give the mathematical details of the method. We also show the experimental protocol and the results, which validate our approach.

  17. Gray value differences to dentin of root posts radiographed with digital intraoral systems and conventional X-ray films.

    Science.gov (United States)

    Wicht, S; Pfeiffer, P; Rother, U; Nergiz, I; Schmage, P

    2011-01-01

    This study compared the gray value differences to dentin of titanium and FRC root posts in anterior and posterior teeth radiographed with digital intraoral systems and conventional x-ray film. Radiographic images (n=5) of titanium or fiber-reinforced composite (FRC) root posts placed in extracted teeth were taken with six digital intraoral radiographic devices and conventional x-ray film (control group). Gray value differences were evaluated between the root posts and root dentin. Statistical analyses of the results were performed with three-way and one-way ANOVA with Bonferroni-Dunn's multiple comparisons post-hoc analyses (α=0.05). Significantly higher gray value differences of titanium and FRC posts were found in anterior teeth but not in molars for XIOS, Sidexis and Visualix digital intraoral systems, but not for RVG, DenOptix and VistaScan (FRC posts). Except for DenOptix with incisors and molars and VistaScan with molars, conventional x-ray films showed significantly lower gray value differences of titanium posts in incisors and molars compared to the corresponding digital radiographs.

  18. Detector or system? Extending the concept of detective quantum efficiency to characterize the performance of digital radiographic imaging systems.

    Science.gov (United States)

    Samei, Ehsan; Ranger, Nicole T; MacKenzie, Alistair; Honey, Ian D; Dobbins, James T; Ravin, Carl E

    2008-12-01

    To develop an experimental method for measuring the effective detective quantum efficiency (eDQE) of digital radiographic imaging systems and evaluate its use in select imaging systems. A geometric phantom emulating the attenuation and scatter properties of the adult human thorax was employed to assess eight imaging systems in a total of nine configurations. The noise power spectrum (NPS) was derived from images of the phantom acquired at three exposure levels spanning the operating range of the system. The modulation transfer function (MTF) was measured by using an edge device positioned at the anterior surface of the phantom. Scatter measurements were made by using a beam-stop technique. All measurements, including those of phantom attenuation and estimates of x-ray flux, were used to compute the eDQE. The MTF results showed notable degradation owing to focal spot blur. Scatter fractions ranged between 11% and 56%, depending on the system. The eDQE(0) results ranged from 1%-17%, indicating a reduction of up to one order of magnitude and different rank ordering and performance among systems, compared with that implied in reported conventional detective quantum efficiency results from the same systems. The eDQE method was easy to implement, yielded reproducible results, and provided a meaningful reflection of system performance by quantifying image quality in a clinically relevant context. The difference in the magnitude of the measured eDQE and the ideal eDQE of 100% provides a great opportunity for improving the image quality of radiographic and mammographic systems while reducing patient dose. RSNA, 2008

  19. Disease scoring systems for oral lichen planus; a critical appraisal

    NARCIS (Netherlands)

    Wang, J.; van der Waal, I.

    2015-01-01

    The aim of the present study has been to critically review 22 disease scoring systems (DSSs) on oral lichen planus (OLP) that have been reported in the literature during the past decades. Although the presently available DSSs may all have some merit, particularly for research purposes, the diversity

  20. Disease scoring systems for oral lichen planus; a critical appraisal

    NARCIS (Netherlands)

    Wang, J.; van der Waal, I.

    2015-01-01

    The aim of the present study has been to critically review 22 disease scoring systems (DSSs) on oral lichen planus (OLP) that have been reported in the literature during the past decades. Although the presently available DSSs may all have some merit, particularly for research purposes, the diversity

  1. Benchmarking the performance of fixed-image receptor digital radiographic systems part 1: a novel method for image quality analysis.

    Science.gov (United States)

    Lee, Kam L; Ireland, Timothy A; Bernardo, Michael

    2016-06-01

    This is the first part of a two-part study in benchmarking the performance of fixed digital radiographic general X-ray systems. This paper concentrates on reporting findings related to quantitative analysis techniques used to establish comparative image quality metrics. A systematic technical comparison of the evaluated systems is presented in part two of this study. A novel quantitative image quality analysis method is presented with technical considerations addressed for peer review. The novel method was applied to seven general radiographic systems with four different makes of radiographic image receptor (12 image receptors in total). For the System Modulation Transfer Function (sMTF), the use of grid was found to reduce veiling glare and decrease roll-off. The major contributor in sMTF degradation was found to be focal spot blurring. For the System Normalised Noise Power Spectrum (sNNPS), it was found that all systems examined had similar sNNPS responses. A mathematical model is presented to explain how the use of stationary grid may cause a difference between horizontal and vertical sNNPS responses.

  2. Similar performance of Brasfield and Wisconsin scoring systems in young children with cystic fibrosis

    Energy Technology Data Exchange (ETDEWEB)

    Cleveland, Robert H.; Stamoulis, Catherine [Boston Children' s Hospital, Harvard Medical School, Department of Radiology, Boston, MA (United States); Sawicki, Gregory S. [Boston Children' s Hospital, Harvard Medical School, Division of Respiratory Diseases, Department of Medicine, Boston, MA (United States)

    2015-10-15

    To assess the severity of lung disease in cystic fibrosis (CF), scoring systems based on chest radiographs (CXRs), CT and MRI have been used extensively, although primarily in research settings rather than for clinical purposes. It has recently been shown that those based on CXRs (primarily the Brasfield and Wisconsin systems) are as sensitive and valid as those based on CT. The reproducibility and correlation of both systems to pulmonary function tests (PFTs) were recently investigated and were found to be statistically identical. However, the relative performance of these systems has not been specifically assessed in children younger than 5 years old with mild lung disease, a critical age range in which PFTs is rarely performed. To investigate and compare the performance of the Brasfield and Wisconsin systems in children 0-5 years old with predominantly mild lung disease. Fifty-five patients 0-5 years old with 105 CXRs were included in the study. Given that the goal was to compare system performance in mild disease, only the first two CXRs from each patient were included (all but five patients had two images). When only one image was available in the target age range, it only was included. Agreement between the Brasfield and Wisconsin systems was assessed using a 2X2 contingency table assuming binary classification of CF lung disease using CXR scoring systems (mild vs. non-mild). In the absence of PFTs or another external gold standard for comparison, the Wisconsin system was used as an arbitrary gold standard against which the Brasfield was compared. Correlation between the two systems was assessed via a concordance correlation coefficient (CCC) for repeated measures. Scores were rated as mild or non-mild based on published numerical cutoffs for each system. The systems agreed on 89/105 (85%) and disagreed on 16/105 (15%) of the CXRs. Agreement between the two systems was statistically significant (P < 0.001). Relative sensitivity and specificity of the

  3. Evaluation of a method of assessing faecal loading on plain abdominal radiographs in children

    Energy Technology Data Exchange (ETDEWEB)

    Leech, S.C.; Sullivan, P.B. [Dept. of Paediatrics, John Radcliffe Hospital, Oxford (United Kingdom); McHugh, K. [Department of Radiology, John Radcliffe Hospital, Oxford (United Kingdom)

    1999-04-01

    Background. Childhood constipation is common and assessment is often difficult. Plain abdominal radiography is simple and commonly used to assess constipation. The role of radiography with the use of a simple scoring system has not been fully evaluated. Objective. To assess the reliability of scoring faecal loading on plain abdominal radiographs in children with intractable constipation. Materials and methods. Plain abdominal radiographs from 33 constipated and 67 control children were independently assessed by three observers on two separate occasions. A scoring system was devised with scores from 0 (no stool) to 5 (gross faecal loading with bowel dilatation) in three areas of the colon, giving a total score of 0-15. Results. There were significant differences between the scores of the constipated and control radiographs for each observer (P = 0.05). There was no intra-observer variation (P = 0.12-0.69), but significant inter-observer variation was demonstrated (P = 0.00). Conclusions. We have found this scoring system to be a clinically useful and a reproducible tool in assessing childhood constipation. Assessment of faecal loading is subjective and varies between observers, although one observer will consistently score faecal loading on the same radiograph on successive occasions. To limit exposure to ionising radiation, we recommend that radiography be reserved for the investigation of intractable constipation, and its accuracy is improved if all radiographs are scored by the same observer. (orig.) With 2 figs., 1 tab., 14 refs.

  4. Systematic assessment of constipation on plain abdominal radiographs in children

    Energy Technology Data Exchange (ETDEWEB)

    Bosch, Maurice van den; Graafmans, Doortje [University Medical Center Utrecht, Department of Radiology, Utrecht (Netherlands); Nievelstein, Rutger; Beek, Erik [Wilhelmina Children' s Hospital, Department of Paediatric Radiology, Utrecht (Netherlands)

    2006-03-15

    Constipation in childhood is common and its clinical assessment is often difficult. Plain abdominal radiography is simple and used to quantify constipation. Three scoring systems, those of Barr et al., Leech et al. and Blethyn et al., have been developed to quantify fecal loading on the abdominal radiograph. In order to determine which method is the most useful in clinical practice, we assessed the reproducibility of the three scoring systems. Plain abdominal radiographs from 40 clinically constipated children were retrospectively reviewed by two paediatric radiologists on two separate occasions. The radiographs were scored according to three different systems developed by Barr et al., Leech et al., Blethyn et al. Intraobserver variability and interobserver reproducibility were determined for each system. Kappa coefficients were calculated as indicators of inter- and intraobserver agreement for categorical outcome variables. The Leech score showed the highest reproducibility: the intraobserver agreement was high for both observers ({kappa} values of 0.88 and 1.00, respectively, P<0.05). Furthermore, the interobserver agreement was also high: {kappa} 0.91 in the first round and 0.84 in the second. The Leech score proved to be a highly reproducible tool for assessment of childhood constipation and is of value in clinical practice for systematic assessment of constipation on plain abdominal radiographs in children. (orig.)

  5. Severity scoring systems in the modern intensive care unit.

    Science.gov (United States)

    Clermont, G; Angus, D C

    1998-05-01

    In recent years, several factors have led to increasing focus on the meaning of appropriateness of care and clinical performance in the intensive care unit (ICU). The emergence of new and expensive treatment modalities, a deeper reflection on what constitutes a desirable outcome, increasing financial pressure from cost containment efforts, and new attitudes regarding end-of-life decisions are reshaping the delivery of intensive care worldwide. This quest for a measure of ICU performance has led to the development of severity adjustment systems that will allow standardised comparisons of outcome and resource use across ICUs. These systems, for many years used only in the research setting, have evolved to become sophisticated, computer-based decision-support tools, in some instances commercially developed, and capable of predicting a diverse set of outcomes. Their application has broadened to include ICU performance assessment, individual patient decision-making, and pre- and post-hoc risk stratification in randomised trials. In this paper, we review the popular scoring systems currently in use; design issues in the development and evaluation of new scoring systems; current applications of scoring systems; and future directions.

  6. Development of receiving-detecting circuit for digital radiographic systems with improved spatial resolution

    Science.gov (United States)

    Ryzhikov, Volodymir D.; Opolonin, Oleksandr D.; Galkin, Serhiy M.; Voronkin, Yevheniy F.; Lysetska, Olena K.; Kostyukevych, Serhiy A.

    2009-08-01

    Detection of X-ray radiation by digital radiographic systems (DRS) is realized using multi-element detector arrays of scintillator-photodiode (S-PD) type. Accounting for our experience in development of X-ray introscopy systems, possibilities can be found for improvement of DRS detection efficiency. Namely, a more efficient use of the dynamic range of the analog-to-digit converter by means of instrumental compensation of scatter of detector characteristics and smaller apertures of individual detection channels. However, smaller apertures lead to lower levels of useful signals, and a problem emerges of signal interference over neighboring channels, which is related to optical separation of the scintillation elements. Also, more compact arrangement of electronic components of preamplifiers is achieved. The latter problem is solved by using multi-channel (from 32 to 1024 channels) photoreceiving devices (PRD). PRD has a set of photosensitive elements formed on one crystal, as well as shift registers ensuring preliminary amplification of signals and series connection to one outlet. The work envisages creation of receiving-detecting circuit (RDC) with improved spatial resolution (ISR) with the aim of producing advanced DRS with improved characteristics: density resolution better than 0.9%, and detecting ability allowing detection of θ 0.5 mm steel wire behind 6 mm steel. The work will result in the development of RDC with ISR (800-200 microns). In combination with various ionizing radiation sources and scanning mechanisms this will allow creation of DRS for many tasks of non-destructive testing (NDT) and technical diagnostics (TD), in particular, for check-up of pipelines, objects of oil and gas industries, etc. This work was supported by the Ministry of Education and Science of Ukraine, the U.S. Civilian Research and Development Foundation (CRDF), and by the NATO Science for Peace and Security Program (Project SfP-982823).

  7. Comparative Analysis of Radiographic Hip Joint Geometry Using Measurement Tools on Picture Archiving and Communication System: A Prospective Study of 100 Pelvic Radiographs of Koreans.

    Science.gov (United States)

    Kim, Seung-Chan; Lim, Young-Wook; Kwon, Soon-Yong; Lee, Jun-Ku; Park, Il-Kyu; Kim, Yong-Sik

    2016-11-01

    A contralateral normal hip joint has been often used as a reference standard in preoperative planning and intraoperative assessment of hip arthroplasty, with the assumption that bilateral hip joint geometries have no significant differences. However, one previous study using analog measurements on hardcopy films reported significant bilateral variation in hip joint geometry. We therefore investigated the level of agreement between the right and left hips for each measurement and determined index values and the range of normal bilateral variations. We assessed 100 standard anteroposterior radiographs of the pelvis in this study. Two independent observers measured the actual value of femoral head diameter, location of the femoral head center, acetabular offset, femoral offset, hip offset, greater trochanteric height, neck-shaft angle, medullary canal diameter, and proximal femoral diameter. Intraclass correlation coefficients (ICCs) and values of mean difference were calculated for each measurement. The results demonstrated perfect agreement (ICC >0.8) between the right and left hips for most parameters and substantial agreement for greater trochanteric height (ICC = 0.735) and femoral offset (ICC = 0.773). The mean difference and standard deviation in the measurement between the right and left hips for the location of the femoral head center and the acetabular offset were 0.60 ± 0.48 mm and 0.42 ± 0.30 mm, respectively. Hip joint geometry is not influenced by side. In hip arthroplasty, a contralateral normal hip can be reliably used as a guide for preoperative planning using measurement tools on a picture archiving and communication system. Copyright © 2016 Elsevier Inc. All rights reserved.

  8. The reliability of tablet computers in depicting maxillofacial radiographic landmarks

    Energy Technology Data Exchange (ETDEWEB)

    Tadinada, Aditya; Mahdian, Mina; Sheth, Sonam; Chandhoke, Taranpreet K.; Gopalakrishna, Aadarsh; Potluri, Anitha; Yadav, Sumit [University of Connecticut School of Dental Medicine, Farmington (United States)

    2015-09-15

    This study was performed to evaluate the reliability of the identification of anatomical landmarks in panoramic and lateral cephalometric radiographs on a standard medical grade picture archiving communication system (PACS) monitor and a tablet computer (iPad 5). A total of 1000 radiographs, including 500 panoramic and 500 lateral cephalometric radiographs, were retrieved from the de-identified dataset of the archive of the Section of Oral and Maxillofacial Radiology of the University Of Connecticut School Of Dental Medicine. Major radiographic anatomical landmarks were independently reviewed by two examiners on both displays. The examiners initially reviewed ten panoramic and ten lateral cephalometric radiographs using each imaging system, in order to verify interoperator agreement in landmark identification. The images were scored on a four-point scale reflecting the diagnostic image quality and exposure level of the images. Statistical analysis showed no significant difference between the two displays regarding the visibility and clarity of the landmarks in either the panoramic or cephalometric radiographs. Tablet computers can reliably show anatomical landmarks in panoramic and lateral cephalometric radiographs.

  9. A new scoring system to stratify risk in unstable angina

    Directory of Open Access Journals (Sweden)

    Salzberg Simón

    2003-08-01

    Full Text Available Abstract Background We performed this study to develop a new scoring system to stratify different levels of risk in patients admitted to hospital with a diagnosis of unstable angina (UA, which is a complex syndrome that encompasses different outcomes. Many prognostic variables have been described but few efforts have been made to group them in order to enhance their individual predictive power. Methods In a first phase, 473 patients were prospectively analyzed to determine which factors were significantly associated with the in-hospital occurrence of refractory ischemia, acute myocardial infarction (AMI or death. A risk score ranging from 0 to 10 points was developed using a multivariate analysis. In a second phase, such score was validated in a new sample of 242 patients and it was finally applied to the entire population (n = 715. Results ST-segment deviation on the electrocardiogram, age ≥ 70 years, previous bypass surgery and troponin T ≥ 0.1 ng/mL were found as independent prognostic variables. A clear distinction was shown among categories of low, intermediate and high risk, defined according to the risk score. The incidence of the triple end-point was 6 %, 19.2 % and 44.7 % respectively, and the figures for AMI or death were 2 %, 11.4 % and 27.6 % respectively (p Conclusions This new scoring system is simple and easy to achieve. It allows a very good stratification of risk in patients having a clinical diagnosis of UA. They may be divided in three categories, which could be of help in the decision-making process.

  10. Comparative vascular audit using the POSSUM scoring system.

    OpenAIRE

    Copeland, G. P.; Jones, D.; Wilcox, A; Harris, P.L.

    1993-01-01

    Comparative audit using overall mortality and morbidity figures can be misleading as they do not take into account variations in surgical procedure and patient fitness. To examine these effects we have compared vascular surgery in two differing hospitals, during a similar 9-month period, using the POSSUM scoring system. In one unit, 255 patients underwent vascular surgery with an operative mortality of 9.4%, and morbidity of 37.3%. In the other unit, 89 patients underwent vascular procedures ...

  11. A risk scoring system for prediction of haemorrhagic stroke.

    Science.gov (United States)

    Zodpey, S P; Tiwari, R R

    2005-01-01

    The present pair-matched case control study was carried out at Government Medical College Hospital, Nagpur, India, a tertiary care hospital with the objective to devise and validate a risk scoring system for prediction of hemorrhagic stroke. The study consisted of 166 hospitalized CT scan proved cases of hemorrhagic stroke (ICD 9, 431-432), and a age and sex matched control per case. The controls were selected from patients who attended the study hospital for conditions other than stroke. On conditional multiple logistic regression five risk factors- hypertension (OR = 1.9. 95% Cl = 1.5-2.5). raised scrum total cholesterol (OR = 2.3, 95% Cl = 1.1-4.9). use of anticoagulants and antiplatelet agents (OR = 3.4, 95% Cl =1.1-10.4). past history of transient ischaemic attack (OR = 8.4, 95% Cl = 2.1- 33.6) and alcohol intake (OR = 2.1, 95% Cl = 1.3-3.6) were significant. These factors were ascribed statistical weights (based on regression coefficients) of 6, 8, 12, 21 and 8 respectively. The nonsignificant factors (diabetes mellitus, physical inactivity, obesity, smoking, type A personality, history of claudication, family history of stroke, history of cardiac diseases and oral contraceptive use in females) were not included in the development of scoring system. ROC curve suggested a total score of 21 to be the best cut-off for predicting haemorrhag stroke. At this cut-off the sensitivity, specificity, positive predictivity and Cohen's kappa were 0.74, 0.74, 0.74 and 0.48 respectively. The overall predictive accuracy of this additive risk scoring system (area under ROC curve by Wilcoxon statistic) was 0.79 (95% Cl = 0.73-0.84). Thus to conclude, if substantiated by further validation, this scorincy system can be used to predict haemorrhagic stroke, thereby helping to devise effective risk factor intervention strategy.

  12. A credit score system for socially responsible lending

    OpenAIRE

    Gutiérrez-Nieto, Begoña; Serrano-Cinca, Carlos; Camón-Cala, Juan

    2011-01-01

    Ethical banking, microfinance institutions or certain credit cooperatives, among others, grant socially responsible loans. This paper presents a credit score system for them. The model evaluates both social and financial aspects of the borrower. The financial aspects are evaluated under the conventional banking framework, by analysing accounting statements and financial projections. The social aspects try to quantify the loan impact on the achievement of Millennium Development Goals such as e...

  13. THE PREDICTION OF DIFFICULT INTUBATION WITH BEDSIDE SCORING SYSTEMS

    OpenAIRE

    Gerçek, Arzu; Lim, Sema; İşler, Banu; Eti, Zeynep; Göğüs, Yılmaz

    2016-01-01

    Objective: The aim of this study was to evaluate the correlation of sex, age, bedside scoring systems and body mass index with laryngoscopic view in patients with clinically difficult intubation.Methods: Five hundred patients, aged 20-70 years, were included in the study. The age, sex, weight and height of the patients were recorded preoperatively and body mass index was calculated. The patients were examined for Mallampati classification, thyromental distance, mouth opening, neck mobility an...

  14. Scoring systems of severity in patients with multiple trauma.

    Science.gov (United States)

    Rapsang, Amy Grace; Shyam, Devajit Chowlek

    2015-04-01

    Trauma is a major cause of morbidity and mortality; hence severity scales are important adjuncts to trauma care in order to characterize the nature and extent of injury. Trauma scoring models can assist with triage and help in evaluation and prediction of prognosis in order to organise and improve trauma systems. Given the wide variety of scoring instruments available to assess the injured patient, it is imperative that the choice of the severity score accurately match the application. Even though trauma scores are not the key elements of trauma treatment, they are however, an essential part of improvement in triage decisions and in identifying patients with unexpected outcomes. This article provides the reader with a compendium of trauma severity scales along with their predicted death rate calculation, which can be adopted in order to improve decision making, trauma care, research and in comparative analyses in quality assessment. Copyright © 2013 AEC. Publicado por Elsevier España, S.L.U. All rights reserved.

  15. New reliable scoring system, Toyama mouse score, to evaluate locomotor function following spinal cord injury in mice.

    Science.gov (United States)

    Shigyo, Michiko; Tanabe, Norio; Kuboyama, Tomoharu; Choi, Song-Hyen; Tohda, Chihiro

    2014-06-03

    Among the variety of methods used to evaluate locomotor function following a spinal cord injury (SCI), the Basso Mouse Scale score (BMS) has been widely used for mice. However, the BMS mainly focuses on hindlimb movement rather than on graded changes in body support ability. In addition, some of the scoring methods include double or triple criteria within a single score, which likely leads to an increase in the deviation within the data. Therefore we aimed to establish a new scoring method reliable and easy to perform in mice with SCI. Our Toyama Mouse Score (TMS) was established by rearranging and simplifying the BMS score and combining it with the Body Support Scale score (BSS). The TMS reflects changes in both body support ability and hindlimb movement. The definition of single score is made by combing multiple criteria in the BMS. The ambiguity was improved in the TMS. Using contusive SCI mice, hindlimb function was measured using the TMS, BMS and BSS systems. The TMS could distinguish changes in hindlimb movements that were evaluated as the same score by the BMS. An analysis of the coefficient of variation (CV) of score points recorded for 11 days revealed that the CV for the TMS was significantly lower than the CV obtained using the BMS. A variation in intra evaluators was lower in the TMS than in the BMS. These results suggest that the TMS may be useful as a new reliable method for scoring locomotor function for SCI models.

  16. The Utility of Scoring Systems in Predicting Early and Late Mortality in Alcoholic Hepatitis: Whose Score Is It Anyway?

    Directory of Open Access Journals (Sweden)

    Naaventhan Palaniyappan

    2012-01-01

    Full Text Available Background. Alcoholic hepatitis (AH is a distinct clinical entity in the spectrum of alcoholic liver disease with a high short-term mortality. Several scoring systems are being used to assess the severity of AH but the ability of these scores to predict long-term survival in these patients is largely unknown. Aims. We aim to assess the utility of five different scoring systems Child Pugh (CP, model for end-stage liver disease (MELD, Maddrey’s discriminant function (mDF, Glasgow AH score (GAHS, and age-bilirubin-INR-creatinine (ABIC score in predicting shot-term and long-term survival in patients with AH. Methods. Patients with histological evidence of AH were identified from our database. The clinical and biochemical parameters were used to calculate the 5 different scores. The prognostic utility of these scores was determined by generating an ROC curve for survival at 30 days, 90 days, 6 months, and 1 year. Results and Conclusions. All 5 scores with the exception of CP score have a similar accuracy in predicting the short-term prognosis. However, they are uniformly poor in predicting longer-term survival with AUROC not exceeding 0.74. CP score is a very poor predictor of survival in both short and long term. Abstinence from alcohol was significantly (<0.05 associated with survival at 1 year.

  17. Lower limb replantations: indications and a new scoring system.

    Science.gov (United States)

    Battiston, Bruno; Tos, Pierluigi; Pontini, Italo; Ferrero, Sebastiano

    2002-01-01

    The need for reconstruction of lower limb amputations is increasing, due to high-energy trauma in road accidents and work-related injuries. The indication for lower limb replantation is still controversial. Compared with upper limb replantations, indications are more select due to the frequent complications in lower limb salvage procedures, such as severe general complications or local complications such as necrosis, infections, nonunions, the need for secondary lengthening, or other reconstructive procedures. The satisfactory results given by artificial prosthesis, such as quicker recovery time and fewer secondary procedures, also contribute to the higher degree of selection for lower limb replantation candidates. Since 1993, we have replanted 14 amputations of the lower limb in 12 patients, including 2 bilateral cases. Although survival of the replanted segment was obtained in all patients, 5 cases were subsequently amputated for severe secondary complications. Of the remaining 9 cases, evaluated by means of Chen criteria, 7 had good results (3 Chen I and 4 Chen II), 1 sufficient (Chen III), and 1 poor (Chen IV). The best results were obtained in young patients. Our experience led us to examine the necessity for careful, objective patient selection. We developed a score evaluation system by modifying the international classifying method for severe limb traumas (mangled extremity severity score, or MESS system). This relatively simple system, based on the retrospective study of our cases, considers several parameters (patient's age, general conditions, level and type of lesion, time of injury, and associated lesions), giving each one a score. The total score gives the indication for replantation, predicts the functional outcome, and facilitates decision-making.

  18. A recently developed MRI scoring system for hand osteoarthritis: its application in a clinical setting.

    Science.gov (United States)

    Ramonda, Roberta; Favero, Marta; Vio, Stefania; Lacognata, Carmelo; Frallonardo, Paola; Belluzzi, Elisa; Campana, Carla; Lorenzin, Mariagrazia; Ortolan, Augusta; Angelini, Federico; Piccoli, Antonio; Oliviero, Francesca; Punzi, Leonardo

    2016-08-01

    This study aimed to apply the recently proposed Oslo hand osteoarthritis magnetic resonance imaging (MRI) scoring system to evaluate MRI findings in a cohort of patients affected by long-standing erosive hand osteoarthritis (EHOA). Eleven female EHOA patients (median 59 [interquartile range 62-52] years, disease duration 9.5 [interquartile range 13-3.75] years) underwent MRI (1.5 T) of the dominant hand, and synovitis, bone marrow lesions (BMLs), joint space narrowing, osteophytes, cysts, malalignment, and erosions were scored using the Oslo scoring system. Intra- and inter-reader reliability were assessed. The patients also underwent X-ray examination, and bone features were evaluated using the same scoring system. Pain and tenderness were assessed during a physical examination. Spearman's non-parametric test was used to analyze the correlations between variables. MRI intra- and inter-reader reliability were found between good and moderate for many features. No statistical differences were found between the radiographs and MRI with regard to detection of JSN, malalignment, and bone erosions. Synovitis was detected in 39.8 % of the 80 joints examined (in a mild form in 80 %), erosions were found in 51.1 %, and BMLs were identified in 20.5 and 23.9 % at the distal and the proximal side, respectively. BMLs at both the proximal and distal ends were correlated with tender joints (BML distal p = 0.0013, BML proximal p = 0.012). The presence of synovitis was correlated with tenderness (p = 0.004) and erosions at both the distal and proximal joints (p = 0.004). The presence of erosions correlated with tender joints (p < 0.01) and the mean visual analog scale (VAS) score (distal p = 0.03, proximal p = 0.01). Synovitis and BMLs were correlated with clinical symptoms in our patients affected with long-standing EHOA.

  19. Scoring system development for prediction of extravesical bladder cancer

    Directory of Open Access Journals (Sweden)

    Prelević Rade

    2014-01-01

    Full Text Available Background/Aim. Staging of bladder cancer is crucial for optimal management of the disease. However, clinical staging is not perfectly accurate. The aim of this study was to derive a simple scoring system in prediction of pathological advanced muscle-invasive bladder cancer (MIBC. Methods. Logistic regression and bootstrap methods were used to create an integer score for estimating the risk in prediction of pathological advanced MIBC using precystectomy clinicopathological data: demographic, initial transurethral resection (TUR [grade, stage, multiplicity of tumors, lymphovascular invasion (LVI], hydronephrosis, abdominal and pelvic CT radiography (size of the tumor, tumor base width, and pathological stage after radical cystectomy (RC. Advanced MIBC in surgical specimen was defined as pT3-4 tumor. Receiving operating characteristic (ROC curve quantified the area under curve (AUC as predictive accuracy. Clinical usefulness was assessed by using decision curve analysis. Results. This single-center retrospective study included 233 adult patients with BC undergoing RC at the Military Medical Academy, Belgrade. Organ confined disease was observed in 101 (43.3% patients, and 132 (56.7% had advanced MIBC. In multivariable analysis, 3 risk factors most strongly associated with advanced MIBC: grade of initial TUR [odds ratio (OR = 4.7], LVI (OR = 2, and hydronephrosis (OR = 3.9. The resultant total possible score ranged from 0 to 15, with the cut-off value of > 8 points, the AUC was 0.795, showing good discriminatory ability. The model showed excellent calibration. Decision curve analysis showed a net benefit across all threshold probabilities and clinical usefulness of the model. Conclusion. We developed a unique scoring system which could assist in predicting advanced MIBC in patients before RC. The scoring system showed good performance characteristics and introducing of such a tool into daily clinical decision-making may lead to more appropriate

  20. Documentation of radiation-induced oral mucositis. Scoring Systems

    Energy Technology Data Exchange (ETDEWEB)

    Riesenbeck, D. [Klinik und Poliklinik fuer Strahlentherapie - Radioonkologie, Westfaelische Wilhelms-Universitaet Muenster (Germany); Doerr, W. [Klinik und Poliklinik fuer Strahlentherapie und Radioonkologie, Technische Universitaet Dresden (Germany)

    1998-11-01

    Background: Radiation therapy of tumors in the head and neck region is frequently associated with severe side effects in the oral mucosa which often necessitate interruption of the prescribed treatment protocol. In order to compare therapeutic strategies and, more important, in order to perform multicenter studies, generally accepted scoring systems have to be applied for uniform documentation of the oral mucosal response. Methods: Different scoring protocols are found in the literature. The scoring protocols most widely accepted are the CTC classification and the RTOG/EORTC classification. These are compared with more detailed systems. Results: In the CTC classification, grading of stomatitis is included in the responses of the gastrointestinal tract and emphasizes dietary effects. For effects of radiation alone or of radiochemotherapy, the RTOG/EORTC system, focusing on therapeutic interventions, has been established. However, there are only minor differences in the grading of mucositis between these 2 protocols. Based on the RTOG/EORTC classification, Maciejewski et al. introduced a classification system with inclusion of the area affected, but also changed the sensitivity of the scores. The latter may be confusing if the source of the system used is not cited in a report. An alternative system was proposed by Dische, which in addition to objective morphologic criteria also includes the symptoms induced by the mucosal response, and hence includes some subjective aspects reported by the patient. Conclusions: For routine documentation of acute radiation side effects in the oral cavity, the German version of the RTOG/EORTC classification can be recommended. In studies with particular interest in oral mucositis, a more sensitive scoring system may be applied. In any publication concerning mucositis, a table or a detailed description of the system used should be included. (orig.) [Deutsch] Hintergrund: Die Strahlentherapie von Tumoren der Kopf-Hals-Region ist haeufig

  1. Comparison of radiographic and computed tomographic images of the lungs in healthy neonatal foals.

    Science.gov (United States)

    Schliewert, Eva-Christina; Lascola, Kara M; O'Brien, Robert T; Clark-Price, Stuart C; Wilkins, Pamela A; Foreman, Jonathan H; Mitchell, Mark A; Hartman, Susan K; Kline, Kevin H

    2015-01-01

    To compare CT and radiographic images of the lungs in sedated healthy foals positioned in sternal recumbency and to investigate whether a relationship exists between CT-derived measurements of lung attenuation and Paco2 and Pao2. 6 healthy Standardbred foals < 14 days of age. Thoracic CT images were acquired followed by radiographic views with each foal sedated and positioned in sternal recumbency. For each foal, both CT and radiographic images were evaluated for severity and extent of changes by lung regions on the basis of a subjective scoring system by 3 investigators. Quantitative analysis of CT images was also performed. Assessments of Pao2 and Paco2 were performed before sedation, following sedation prior to CT, and after CT prior to radiography. Interobserver agreement for CT and radiographic image scoring was strong (0.73) and fair (0.65), respectively; intraobserver agreement was near perfect for CT (0.97) and radiographic (0.94) image scoring. Increased CT attenuation and radiographic changes were identified for all foals and were preferentially distributed in the caudoventral portion of the lungs. Radiographic scores were significantly lower than CT image scores. A positive correlation (r = 0.872) between lung attenuation and CT image score was identified. A significant increase in Paco2 was not considered clinically relevant. Significant changes in Pao2 were not observed. Results suggested that interpretation of CT images may be less subjective, compared with interpretation of radiographic images. These findings may aid in the evaluation of CT and radiographic images of neonatal foals with respiratory tract disease.

  2. Breast cancer acute radiotherapy morbidity evaluated by different scoring systems.

    Science.gov (United States)

    López, Escarlata; Núñez, M Isabel; Guerrero, M Rosario; del Moral, Rosario; de Dios Luna, Juan; del Mar Rodríguez, M; Valenzuela, M Teresa; Villalobos, Mercedes; Ruiz de Almodóvar, José Mariano

    2002-05-01

    Reporting of the outcome of radiotherapy is not satisfactory without a description of the treatment-related side effects. The purposes of this paper were: (1) to evaluate the frequency and the severity of collateral skin reactions in a group of breast cancer patients; (2) to report the acute reactions using some current scoring systems and to compare the application of them, and (3) to investigate the variation between intra- and interobservers using these different scales. We studied 108 breast cancer patients who, after surgical treatment, received adjuvant radiotherapy. Clinical skin evaluation was always performed by the same radiotherapist the last day of treatment, and the collateral radiation effects were photographed at that moment to facilitate later evaluations by another two expert doctors. Normal tissue damage was scored according to the Radiation Therapy Oncology Group/The European Organisation for Research, and Treatment of Cancer/ (RTOG/EORTC), the Danish, the European, and the Biomed2 side-effect scales. The most frequent acute complications found were erythema (91.7%), dry desquamation (29.6%) and moist desquamation (35.2%). The reactions were classified as severe in 13.9, 23, 18.5 and 13% of the patients with each of the different systems used, respectively. The concordance between the scoring of radiation-induced side effects on the skin assessed by direct observation of the patients or by examination of the photographic document was sufficient. This is a warrant of accuracy in the evaluation of acute normal tissue lesions. Our results allow us to state the advantage of the RTOG system over the others in terms of evaluating the acute effects produced by radiotherapy of women with breast cancer.

  3. Radiographers and trainee radiologists reporting accident radiographs

    DEFF Research Database (Denmark)

    Buskov, L; Abild, A; Christensen, A

    2013-01-01

    To compare the diagnostic accuracy and clinical validity of reporting radiographers with that of trainee radiologists whom they have recently joined in reporting emergency room radiographs at Bispebjerg University Hospital.......To compare the diagnostic accuracy and clinical validity of reporting radiographers with that of trainee radiologists whom they have recently joined in reporting emergency room radiographs at Bispebjerg University Hospital....

  4. Scoring systems for the characterization of sepsis and associated outcomes

    Science.gov (United States)

    McLymont, Natalie

    2016-01-01

    Sepsis is responsible for the utilisation of a significant proportion of healthcare resources and has high mortality rates. Early diagnosis and prompt interventions are associated with better outcomes but is impeded by a lack of diagnostic tools and the heterogeneous and enigmatic nature of sepsis. The recently updated definitions of sepsis have moved away from the centrality of inflammation and the systemic inflammatory response syndrome (SIRS) criteria which have been shown to be non-specific. Sepsis is now defined as a “life-threatening organ dysfunction caused by a dysregulated host response to infection”. The Quick (q) Sequential (Sepsis-related) Organ Failure Assessment (SOFA) score is proposed as a surrogate for organ dysfunction and may act as a risk predictor for patients with known or suspected infection, as well as being a prompt for clinicians to consider the diagnosis of sepsis. Early warning scores (EWS) are track and trigger physiological monitoring systems that have become integrated within many healthcare systems for the detection of acutely deteriorating patients. The recent study by Churpek and colleagues sought to compare qSOFA to more established alerting criteria in a population of patients with presumed infection, and compared the ability to predict death or unplanned intensive care unit (ICU) admission. This perspective paper discusses recent advances in the diagnostic criteria for sepsis and how qSOFA may fit into the pre-existing models of acute care and sepsis quality improvement. PMID:28149888

  5. Building an Image-Based System to automatically Score psoriasis

    DEFF Research Database (Denmark)

    G{'o}mez, D. Delgado; Carstensen, Jens Michael; Ersbøll, Bjarne Kjær

    2003-01-01

    Nowadays the medical tracking of dermatological diseases is imprecise. The main reason is the lack of suitable objective methods to evaluate the lesion. The severity of the disease is scored by doctors just through their visual examination. In this work, a system to take accurate images...... of dermatological lesions has been developed. Mathematical methods can be applied to these images to obtain values that summarize the lesion and help to track its evolution. The system is composed of two elements. A precise image acquisition equipment and a statistical procedure to extract the lesions from...... the images. The system is tested on patients with the dermatological disease psoriasis. Temporal series of images are taken for each patient and the lesions are automatically extracted. Results indicate that to the images obtained are a good source for obtaining derived variables to track the lesion....

  6. [The NAS system: Nursing Activities Score in mobile technology].

    Science.gov (United States)

    Catalan, Vanessa Menezes; Silveira, Denise Tolfo; Neutzling, Agnes Ludwig; Martinato, Luísa Helena Machado; Borges, Gilberto Cabral de Mello

    2011-12-01

    The objective of this study was to present the computerized structure that enables the use of the Nursing Activities Score (NAS) in mobile technology. It is a project for the development of technology production based on software engineering, founded on the theory of systems development life cycle. The NAS system was built in two modules: the search module, which is accessed using a personal computer (PC), and Data Collection module, which is accessed through a mobile device (Smartphone). The NAS system was constructed to allow other forms, in addition to the NAS tool, to be included in the future. Thus, it is understood that the development of the NAS will bring nurses closer to mobile technology and facilitate their accessibility to the data of the instrument relating to patients, thus assisting in decision-making and in staffing to provide nursing care.

  7. A modified Glasgow Blatchford Score improves risk stratification in upper gastrointestinal bleed: a prospective comparison of scoring systems.

    Science.gov (United States)

    Cheng, D W; Lu, Y W; Teller, T; Sekhon, H K; Wu, B U

    2012-10-01

    Several risk scoring systems exist for upper gastrointestinal bleed (UGIB). We hypothesised that a modified Glasgow Blatchford Score (mGBS) that eliminates the subjective components of the GBS might perform as well as current scoring systems. To compare the performance of the mGBS to the most widely reported scoring systems for prediction of clinical outcomes in patients presenting with UGIB. Prospective cohort study from 9/2010 to 9/2011. Accuracy of the mGBS was compared with the full GBS, full Rockall Score (RS) and clinical RS using area under the receiver operating characterstics-curve (AUC). PRIMARY OUTCOME was need for clinical intervention: blood transfusion, endoscopic, radiological or surgical intervention. Secondary outcome was repeat bleeding or mortality. One hundred and ninety-nine patients were included. Median age was 56 with 40% women. Thirty-two per cent patients required blood transfusion, 24% endoscopic interventions, 0.5% radiological intervention, 0 surgical interventions, 5% had repeat bleeding and 0.5% mortality. the mGBS (AUC 0.85) performed as well as the GBS (AUC = 0.86, P = 0.81), and outperformed the full RS (AUC 0.75, P = 0.005) and clinical RS (AUC 0.66, P upper gastrointestinal bleed. By eliminating the subjective components of the Glasgow Blatchford Score, the modified Glasgow Blatchford Score may be easier to use and therefore more easily implemented into routine clinical practice. © 2012 Blackwell Publishing Ltd.

  8. Inter- and intra-observer variability associated with the use of the Mirels' scoring system for metastatic bone lesions.

    LENUS (Irish Health Repository)

    Mac Niocaill, Ruairi F

    2011-01-01

    Metastatic bone disease is increasing in association with ever-improving medical management of osteophylic malignant conditions. The precise timing of surgical intervention for secondary lesions in long bones can be difficult to determine. This paper aims to evaluate a classic scoring system. All radiographs were examined twice by three orthopaedic oncologists and scored according to the Mirels\\' scoring system. The Kappa statistic was used for the purpose of statistical analysis. The results show agreement between observers (κ = 0.35-0.61) for overall scores at the two time intervals. Inter-observer agreement was also seen with subset analysis of size (κ = 0.27-0.60), site (κ = 0.77-1.0) and nature of the lesion (κ = 0.55-0.81). Similarly, low levels of intra-observer variability were noted for each of the three surgeons (κ= 0.34, 0.39, and 0.78, respectively). These results indicate a reliable, repeatable assessment of bony metastases. We continue to advocate its use in the management of patients with long bone metastases.

  9. Comparison of AIMS65 Score and Other Scoring Systems for Predicting Clinical Outcomes in Koreans with Nonvariceal Upper Gastrointestinal Bleeding.

    Science.gov (United States)

    Park, Sung Min; Yeum, Seok Cheon; Kim, Byung-Wook; Kim, Joon Sung; Kim, Ji Hee; Sim, Eun Hui; Ji, Jeong-Seon; Choi, Hwang

    2016-07-15

    The AIMS65 score has not been sufficiently validated in Korea. The objective of this study was to compare the AIMS65 and other scoring systems for the prediction of various clinical outcomes in Korean patients with acute nonvariceal upper gastrointestinal bleeding (NVUGIB). The AIMS65 score, clinical and full Rockall scores (cRS and fRS) and Glasgow-Blatchford (GBS) score were calculated in patients with NVUGIB in a single center retrospectively. The performance of these scores for predicting mortality, rebleeding, transfusion requirement, and endoscopic intervention was assessed by calculating the area under the receiver-operating characteristic curve. Of the 523 patients, 3.4% died within 30 days, 2.5% experienced rebleeding, 40.0% required endoscopic intervention, and 75.7% needed transfusion. The AIMS65 score was useful for predicting the 30-day mortality, the need for endoscopic intervention and for transfusion. The fRS was superior to the AIMS65, GBS, and cRS for predicting endoscopic intervention and the GBS was superior to the AIMS65, fRS, and cRS for predicting the transfusion requirement. The AIMS65 score was useful for predicting the 30-day mortality, transfusion requirement, and endoscopic intervention in Korean patients with acute NVUGIB. However, it was inferior to the GBS and fRS for predicting the transfusion requirement and endoscopic intervention, respectively.

  10. Brasfield and Wisconsin scoring systems have equal value as outcome assessment tools of cystic fibrosis lung disease

    Energy Technology Data Exchange (ETDEWEB)

    Cleveland, Robert H.; Stamoulis, Catherine; Sawicki, Gregory; Kelliher, Emma; Wood, Christopher; Zurakowski, David; Lee, Edward [Boston Children' s Hospital, Harvard Medical School, Department of Radiology, Boston, MA (United States); Zucker, Evan J. [Tufts Medical School, Boston, MA (United States)

    2014-05-15

    Several imaging-based scoring systems have been used as outcome measures in assessing the severity of cystic fibrosis (CF) lung disease. It has been shown that chest radiography performs equally to computed tomography (CT). There is the opinion that of the two most commonly used chest radiograph (CXR) systems, the Brasfield system is less sensitive and reliable than the Wisconsin system. This report assesses the reproducibility and reliability of the two systems. Thirty patients with CXRs during a 5-year period were randomly selected. One hundred eighty-two studies had data for all CXRs and pulmonary function tests (PFTs), Forced Expiratory Volume in One Second (FEV-1) and Forced Vital Capacity (FVC). PFT values closest to the date of each CXR were recorded. Four radiologists scored each image twice by both the Brasfield and Wisconsin systems. Intra- and inter-rater reliability, correlation with PFTs and direct correlation of the two systems were calculated. Intra-rater agreement: r = 0.86-0.99 Brasfield, r = 0.78-0.96 Wisconsin. Inter-rater agreement: 0.76-0.90 Brasfield, r = 0.74-0.97 Wisconsin. Brasfield vs. FEV-1: r = 0.55, vs. FVC r = 0.61. Wisconsin vs. FEV-1: r = 0.57, vs. FVC r = 0.66. Correlation of the two systems: r = 0.86 (all P < 0.001). The Brasfield and Wisconsin systems performed very similarly providing equally reproducible, robust and reliable measures. (orig.)

  11. Development of an automated scoring system for plant comet assay

    Directory of Open Access Journals (Sweden)

    Bertrand Pourrut

    2015-05-01

    -\tnucleus density: increase the density of nuclei is of importance to increase scoring reliability (Sharma et al., 2012. In conclusion, increasing plant nucleus extraction yield and automated scoring of nuclei do represent big challenges. However, our promising preliminary results open up the perspective of an automated high-throughput scoring of plant nuclei.

  12. Assessing the repeatability and reproducibility of the Leg Score: a Dutch Claw Health Scoring System for dairy cattle.

    Science.gov (United States)

    Holzhauer, M; Middelesch, H; Bartels, C J M; Frankena, K; Verhoeff, J; Noordhuizen-Stassen, E N; Noordhuizen, J P T M

    The optimal moment for trimming the claws of all dairy cows in a herd was investigated by assessing the external rotation of the hind claws of individual cows relative to the spinal column. This leg score consisted of three independent descriptors: 1 (good/normal), 2 (moderately deviant), and 3 (severely deviant). This study assessed the repeatability and the reproducibility of the leg score system, and the consistency of the advice given subsequently about trimming of the hind claws of all cows in the herd. Repeatability was assessed for 52 cows that were scored twice on the same day by 11 observers; the kappa value ranged from 0.17 to 0.66 (mean: 0.36). The probability of the same result for both assessments ranged from 0.49 to 0.80 (mean: 0.61). Claw trimming was advised if at least 20% of the cows had a leg score of 3. On the basis of the scores, 3 observers consistently advised trimming of the hind claws of all the cows in the herd, and 6 observers consistently advised against the need for trimming in the short term; 2 observers had an inconsistent advice. The reproducibility of the scoring system was assessed in two dairy herds (62 and 50 cows). Eight observers evaluated the leg score of the cows of both herds on the same day. The mean kappa value of the leg score for all pairs of different observers (A-B, A-C etcetera) was 0.24 [-0.08-0.49]. In conclusion, the leg score is not a reliable method for determining the optimal moment for claw trimming in dairy cattle. The reasons for the inconsistent observations require further investigation.

  13. 核电站主回路系统主要设备的射线透照工艺%Radiographic Process for Main Equipment of Nuclear Power Station Primary System in Radiographic Testing

    Institute of Scientific and Technical Information of China (English)

    华雄飞; 毛羽飞; 张铁辉; 李金强; 梅义俊; 刘顺

    2012-01-01

    Primary system of nuclear power station is the main examination object of radiographic testing in PSI/ ISI. Starting with radiography process in radiographic testing, radiography process and implementation of main equipment as steam generator ( SG ), reactor pressure vessel ( RPV ) and pressurizer ( PRZ ) were introduced quite systematic in primary system of nuclear power station. Radiographic special tools used in each exposure were presented also. Based on the successful experience of pre-service inspection in Ling'ao No. 3 and 4 nuclear power station, foundation is laid for the PSI/ISI later.%核电站主回路系统是核电站役前/在役检查的主要检测对象,从射线检测透照工艺入手,系统地介绍了核电站主回路系统主要设备蒸汽发生器SG、反应堆压力容器RPV以及稳压器PRZ的透照方式及实施方法,并对各透照中所使用的专用工具架做了介绍。以岭澳核电站3,4号机组役前检查顺利完成的实际经验为依托,为以后役前/在役检查打下基础。

  14. GI Radiographic Tests

    Science.gov (United States)

    ... Topic / Radiographic Tests in GI Radiographic Tests in GI Basics Commonly Performed Radiographic Tests in Gastroenterology Gastroenterologists ... January 2009. Updated December 2012. Return to Top GI Health Centers Colorectal Cancer Hepatitis C Inflammatory Bowel ...

  15. Head-to-head comparison of quantitative and semi-quantitative ultrasound scoring systems for rheumatoid arthritis

    DEFF Research Database (Denmark)

    Terslev, Lene; Ellegaard, Karen; Christensen, Robin;

    2012-01-01

    To evaluate the reliability and agreement of semi-quantitative scoring (SQS) and quantitative scoring (QS) systems. To compare the two types of scoring system and investigate the construct validity for both scoring systems.......To evaluate the reliability and agreement of semi-quantitative scoring (SQS) and quantitative scoring (QS) systems. To compare the two types of scoring system and investigate the construct validity for both scoring systems....

  16. An intraoral periapical radiographic study of nutrient canals as a diagnostic aid in systemic diseases and pathological conditions

    Directory of Open Access Journals (Sweden)

    Vanaja G Reddy

    2008-01-01

    Full Text Available Objectives: To correlate the prevalence of nutrient canals in healthy dentulous with healthy edentulous, diabetes mellitus, hypertension and periodontally compromised patients. Methods: Study was conducted on 500 subjects in the age group of 21-70 years. They were clinically and radiographically examined using intraoral periapical radiographs, and were statistically analyzed. Results: On Comparing with control group, prevalence of nutrient canals was observed to be highly significant in diabetes (27%, P< 0.001, significant in edentulous (22%, P< 0.01, hypertensive (21%, P< 0.01 and periodontitis (17%, P< 0.05 groups. Highly significant age wise prevalence was observed in edentulous and periodontitis groups and a significant increase in diabetes and hypertensive groups. Interpretation and Conclusion: Significant correlation was observed in diabetes, edentulous, hypertensive and periodontitis groups, when compared with healthy subjects. Increase in prevalence of nutrient canals on mandibular anterior IOPAR can be used as an adjunct diagnostic aid in systemic diseases like diabetes, hypertension and periodontitis.

  17. Dose reduction of radiographs of the pediatric pelvis for diagnosing hip dysplasia using a digital flat-panel detector system; Dosisreduktion bei Roentgenaufnahmen des kindlichen Beckenskelettes zur Diagnostik der Hueftgelenksdysplasie unter Verwendung eines digitalen Flachdetektorsystems

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, K.; Ahlers, K.; Kloska, S.; Vieth, V.; Meier, N.; Heindel, W. [Inst. fuer Klinische Radiologie, Westfaelische Wilhelms-Univ. Muenster (Germany); Sandmann, C.; Gosheger, G. [Orthopaedische Klinik, Westfaelische Wilhelms-Univ. Muenster (Germany)

    2003-01-01

    Purpose: To evaluate a possible dose reduction in pediatric pelvic radiographs in congenital hip dysplasia using a digital flat-panel system instead of a phosphor-storage system. Materials and Methods: During a six-month period, all pediatric patients referred for pelvic radiography for the evaluation of congenital hip dysplasia were randomely assigned to be examined by either a phosphor-storage system or a digital flat-panel system, whereby the latter system was operated with half the radiation dose. Thirty pairs of radiographs were assessed for the visibility of 16 anatomic details and for 5 orthopedic-radiographic measurements (5-point scale with 1 = excellent; three independent observers). The projection indices of Ball and Kommenda and of Toennis and Brunken were calculated for all radiographs. The Student's t-test was used to compare the flat-panel and the phosphor-storage radiographs for observers' assessments, patients' age and projection indices. Results: In a total of 7560 observations, the scores for the visibility of anatomic details and orthopedic-radiographic measurements were respectively 2.72 and 2.64 for the flat-panel system and 2.93 and 2.79 for the phosphor-storage system. No significant differences were found between both systems (p > 0.05) and between patient age and projection indices (p > 0.05). Conclusion: Pediatric pelvic radiographs can be obtained with a digital flat-panel system using half the radiation dose instead of a phosphor-storage system without sacrificing relevant information in the diagnosis of congenital hip dysplasia. (orig.) [German] Zielsetzung: Evaluation einer moeglichen Dosisreduktion bei kindlichen Beckenroentgenaufnahmen zur Diagnostik der Hueftgelenksdysplasie mit einem digitalen Flachdetektorsystem im Vergleich zu einem digitalen Speicherfoliensystem. Material und Methoden: Prospektiv wurden alle ueber einen Zeitraum von 6 Monaten zur Roentgenaufnahme des Beckenskelettes im Rahmen der Diagnostik der

  18. Clinical effectiveness of modified sequential organ failure assessment scoring system for predicting ICU indexing scores

    Directory of Open Access Journals (Sweden)

    Hassan Babamohamadi

    2016-10-01

    Full Text Available Background: The ability to recognize the severity of the disease in those who their survival depend entirely on admission to the intensive care unit, is very valuable clinically. This study aimed to evaluate the clinical effectiveness of modified sequential organ failure assessment (MSOFA scale to predict mortality and length of stay in intensive care unit patients respectively. Methods: This was a retrospective cross-sectional study conducted on hospital records of patients admitted to the intensive care unit. All patients’ records who admitted to the intensive care unit of Kowsar Hospital, Semnan city (the capital of the province, Iran, in 2015 considered as the sample. Collecting data were done during 4 weeks in April and May 2016. The data collection tool was a demographic questionnaire and modified sequential organ failure assessment scale. Exclusion criteria included discharge in the first 24 hours after admission, the patient died a few hours after admission and incomplete information to complete the modified sequential organ failure assessment form. Results: The study of 105 patients' records of the intensive care unit showed that 45.7% of patients were died, 15.2% and 39% were discharged and moved to other wards respectively. The results of logistic regression analysis and receiver operating characteristic (ROC curve showed that this criterion had moderate sensitivity and specificity for prediction of mortality and length of stay in ICU patients (Area=0.635, CI= 0.527-0.743 and each unit increase in modified sequential organ failure assessment score is accompanied by increasing 32 percent chance of death (OR=1.325; 95% CI:1.129,1.555; P= 0.001(. Also each unit increase in modified sequential organ failure assessment (MSOFA score accompanied by increasing 19% length of stay in ICU (OR=1.191; 95% CI: 1.034, 1.371; P= 0.015(. Conclusion: The results of this study showed that the modified sequential organ failure assessment scale is not

  19. Chondrogenic Lesions of the Skeletal System Using Radiographs, CT and MRI

    Directory of Open Access Journals (Sweden)

    Akbar Bonakdarpour

    2011-05-01

    Full Text Available Benign Tumors: Chondroma, chondroblastoma,"nchondromyxoid fibroma, osteochondroma"nChondroma"n1. Enchondroma"n2. Periosteal Chondroma"n3. Enchondromatosis"n4. Metachondromatosis"nEnchondroma is a benign metaphyseal tumor. The"nmajor differential diagnoses are bone infarct and"nchondrosarcoma. Calcification in enchondroma"nhas a popcorn appearance and on radiographs and"nCT they may be counted. Calcified bone infarct"nhas an appearance similar to rotten metal. Central"nchondrosarcoma shows cortical erosion more than"ntwo thirds of the thickness of cortex and also periosteal"nreaction. Pain and growth of lesion in adulthood raises"nthe possibility of malignant transformation."nPeriosteal chondroma: This lesion arises from the"nperiosteum without involving the medullary bone."nThe most common location is the upper humerus."nEnchondromatosis reveals multiple enchondromas,"npredominantly involving one side of the skeleton."nMalignant transformation is the major complication"nof enchondromatosis. In malignant transformation,"nMRI shows that perichondrium is more than 1 cm"nthick in adults and more than 3 cm thick in children."nIn the hands and feet, enchondromatosis should not"nbe confused with fibrous dysplasia. Mafucci syndrome"nis enchondromatosis associated with cavernous"nhemangiomas with a prognosis worse than enchondr"nomatosis."nMultiple hereditary cartilaginous exostoses: This is"nof metaphyseal origin and pedunculated forms grow"naway from the adjacent joint. Sessile osteochondromas"nare broad based; if their surface is irregular they are"nsuspicious of malignancy. Pain and growth of the"nlesion after closure of the epiphyseal plate are warning"nsigns of malignant transformation. In malignant"ntransformation MRI shows that perichondrium is"nmore than 1 cm thick in adults and more than 3 cm"nthick in children."nChondroblastoma: This is a benign tumor, seen before"nclosure of epiphyseal plate, with a sclerotic border."n30 to 50% show

  20. An Experimental Study of Radiographic Density of Alveolar Bone and Cortical Thickness of Mandible by Osteoporosis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byeong Do [Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Wonkwang University, Iksan (Korea, Republic of)

    2000-12-15

    To evaluate the effect of the systemic osteoporosis on radiographic density of alveolar bone and cortical thickness of mandible. The bone mineral density values of lumbar and femur were measured by dual-energy X-ray absorptiometry and T scores of lumbar, femur were obtained respectively. Radiographic densities of alveolar bones and panorama mandibular index (PMI, represents as cortical thickness) were analysed statistically according to age and T score variavles. The radiographic density of alveolar bone of maxillary molar showed significant difference by age and femur T group. That of mandibular molar showed significant difference between femur T group. Panorama mandibular index showed significant difference between age groups. The radiographic density of alvealar bones was more dependent on age femur T than lumbar T. Cortical thickness of mandible was correlated with increasing age.

  1. A New Clinical Scoring System for Adenoid Hypertrophy in Children

    OpenAIRE

    Shervin Sharifkashani; Payman Dabirmoghaddam; Maryam Kheirkhah; Rima Hosseinzadehnik

    2015-01-01

    Introduction: Chronic nasal obstruction due to adenoid hypertrophy is a very common disorder. Although the clinical assessment of adenoid hypertrophy is essential, its real value in young children is difficult to evaluate. The purpose of this prospective study was to validate a simple clinical score to predict the severity of adenoid obstruction and to evaluate the relationship between this method of clinical scoring with radiography and nasopharyngeal endoscopy. Materials and Methods: Ninety...

  2. Associations between body composition measurements of obesity and radiographic osteoarthritis in older adults: Data from the Dong-gu Study.

    Science.gov (United States)

    Wen, Lihui; Kang, Ji-Hyoun; Yim, Yi-Rang; Kim, Ji-Eun; Lee, Jeong-Won; Lee, Kyung-Eun; Park, Dong-Jin; Kim, Tae-Jong; Park, Yong-Wook; Kweon, Sun-Seog; Lee, Young-Hoon; Yun, Yong-Woon; Shin, Min-Ho; Lee, Shin-Seok

    2016-04-29

    We examined the effects of fat deposition on radiographic osteoarthritis (OA) to determine the role of obesity in the pathogenesis of radiographic OA. Data were taken from the Dong-gu cohort, a cross-sectional study of 2,367 subjects. Baseline characteristics, waist circumference (WC), waist-to-hip ratio (WHR), fat mass, and fat percentage were collected, along with X-rays of the knees and hands. Total knee and hand radiographic OA scores were summed using a semi-quantitative grading system, and then stratified by gender using a multiple linear regression model. After adjusting for confounders, weight was the only factor significantly associated with knee radiographic OA, regardless of gender (all p < 0.01). Regarding the hand, fat percentage had the largest effect on radiographic OA in males (p = 0.008), while WHR was the most significant factor in females (p = 0.001). For the knee, fat mass was the most important factor for radiographic OA in males (p = 0.001), while in females, body mass index was the most important factor (p < 0.001). Among the variables, only fat percentage was significantly related to both hand and knee radiographic OA in both genders (all p < 0.01). Regardless of gender, weight was significantly associated with knee radiographic OA. Otherwise, fat deposition correlated with hand and knee radiographic OA in both genders, while the distribution of fat tissue was significantly associated with hand and knee radiographic OA only in females.

  3. Modified Framingham Risk Factor Score for Systemic Lupus Erythematosus.

    Science.gov (United States)

    Urowitz, Murray B; Ibañez, Dominique; Su, Jiandong; Gladman, Dafna D

    2016-05-01

    The traditional Framingham Risk Factor Score (FRS) underestimates the risk for coronary artery disease (CAD) in patients with systemic lupus erythematosus (SLE). We aimed to determine whether an adjustment to the FRS would more accurately reflect the higher prevalence of CAD among patients with SLE. Patients with SLE without a previous history of CAD or diabetes followed regularly at the University of Toronto Lupus Clinic were included. A modified FRS (mFRS) was calculated by multiplying the items by 1.5, 2, 3, or 4. In the first part of the study, using one-third of all eligible patients, we evaluated the sensitivity and specificity of the FRS and the different multipliers for the mFRS. In the second part of the study, using the remaining 2/3 of the eligible patients, we compared the predictive ability of the FRS to the mFRS. In the third part of the study, we assessed the prediction for CAD in a time-dependent analysis of the FRS and mFRS. There were 905 women (89.3%) with a total of 95 CAD events included. In part 1, we determined that a multiplier of 2 provided the best combination of sensitivity and specificity. In part 2, 2.4% of the patients were classified as moderate/high risk based on the classic FRS and 17.3% using the 2FRS (the FRS with a multiplier of 2). In part 3, a time-dependent covariate analysis for the prediction of the first CAD event revealed an HR of 3.22 (p = 0.07) for the classic FRS and 4.37 (p mFRS in which each item is multiplied by 2 more accurately predicts CAD in patients with SLE.

  4. Gradual progression of intrapulmonary lymph nodes associated with usual interstitial pneumonia in progressive systemic sclerosis on chest radiographs and CT

    Energy Technology Data Exchange (ETDEWEB)

    Ohm, Joon Young; Chung, Myung Hee; Kim, Seon Mun [The Catholic Univ. of Korea, Seoul (Korea, Republic of); Kim, Yong Hyun [The Catholic Univ. of Korea, Bucheon (Korea, Republic of)

    2012-10-15

    A 40 year old female visited the clinic for evaluation of Raynaud's phenomenon for a period of four years. The initial chest radiograph showed a fine reticular density and ground glass opacity with lower lobe predominance. These findings are consistent interstitial fibrosis. Additionally, high resolution CT showed multiple, small, coexisting nodular opacities, ranging from 3 to 7 mm in size in both lungs. These nodules grew up to 1.5 cm and showed moderate enhancement. Because of the rareness of intrapulmonary lymph node in patient of progressive systemic sclerosis, we couldn't exclude the possibility of malignancy. These nodules are turned out to be intrapulmonary lymph nodes on video assisted thoracoscopic lung biopsy.

  5. Prognostic factors and scoring system for death from visceral leishmaniasis: an historical cohort study in Brazil.

    Directory of Open Access Journals (Sweden)

    Wendel Coura-Vital

    2014-12-01

    Full Text Available In Brazil, case-fatality rates attributable to visceral leishmaniasis (VL are high and knowledge of the risk factors associated with death may help reduce mortality. The aim of this study was to construct and validate a scoring system for prognosis of death from VL by using all cases reported in Brazil from 2007 to 2011.In this historical cohort study, 18,501 VL cases were analyzed; of these, 17,345 cases were cured and 1,156 cases caused death. The database was divided into two series: primary (two-thirds of cases, to develop the model score, and secondary (one-third of cases, to validate the scoring system. Multivariate logistic regression models were performed to identify factors associated with death from VL, and these were included in the scoring system.The factors associated with death from VL were: bleeding (score 3; splenomegaly (score 1; edema (score 1; weakness (score 1; jaundice (score 1; Leishmania-HIV co-infection (score 1; bacterial infection (score 1; and age (≤0.5 years [score 5]; >0.5 and ≤1 [score 2]; >19 and ≤50 [score 2]; >50 and <65 [score 3]; ≥65 [score 5]. It was observed that patients with a score of 4 had a probability of death of approximately 4.5% and had a worse prognosis. The sensitivity, specificity, and accuracy of this score were 89.4, 51.2, and 53.5, respectively.The scoring system based on risk factors for death showed good performance in identifying patients with signs of severity at the time of clinical suspicion of VL and can contribute to improving the surveillance system for reducing case fatalities. The classification of patients according to their prognosis for death may assist decision-making regarding the transfer of the patients to hospitals more capable of handling their condition, admission to the intensive care unit, and adequate support and specific treatment.

  6. Comparison between subjective and quantitative methods for assessing the resolution limit of radiographic systems; Comparacao entre metodos subjetivos e quantitativos na medida da resolucao limite de sistemas radiograficos

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez, Matheus; Oliveira, Marcela de; Miranda, Jose R.A. [Universidade Estadual Paulista Julio de Mesquita Filho (UNESP), Botucatu, SP (Brazil). Inst. de Biociencias de Botucatu; Pina, Diana R., E-mail: matheus@ibb.unesp.br [UNESP, Botucatu, SP (Brazil). Faculdade de Medicina. Dept. de Doencas Tropicais e Diagnostico por Imagem

    2012-07-01

    The aim of this study was to compare two ways of measuring the resolution limit of radiographic systems, one subjective and one quantitative. To this end, nine images were acquired with different radiographic techniques using a pattern of bars and aluminum plates. With these images were acquired modulation transfer function (MTF) through the edge image obtained by the aluminum plate - the MTF 10% was measured on all images - and the variation of these points, which was faced with the evaluation obtained by the resolution limit of the standard bar. Although we have observed a greater variation between measurements obtained using the bar-pattern, the simplicity of this measuring technique favors the common use of the same. We concluded that, to optimize the quality control of radiographic equipment, it is suggested to measure the MTF at least in periods of time while the annual pattern of bars to be used in shorter time periods to measure changes in resolution of the system. (author)

  7. [Scoring system for early detection of critical illness can fail].

    Science.gov (United States)

    Kamstrup Christiansen, Lærke; Andreasen, Jo Bønding; Frederiksen, Christian Alcaraz; Juhl-Olsen, Peter; Sloth, Erik

    2013-02-18

    A 57-year old male underwent elective aortic valve replacement. The immediate post-operative course was uneventful and the patient was discharged with the lowest possible score on a newly implemented scale for early detection of critical illness. The following day he was readmitted with dyspnoea. The critical illness score was still low despite ultrasonic demonstration of a large pericardial effusion requiring drainage. We are concerned that the widely adopted critical illness scale is not sufficiently sensitive for cardiac surgery patients and advocate the use of point-of-care ultrasound.

  8. [Correlation between basic imaging properties and subjective evaluations of two digital radiographic X-ray systems based on direct-conversion flat panel detector].

    Science.gov (United States)

    Sakaguchi, Taro; Katayama, Reiji; Morishita, Junji; Sakai, Shinji; Kuroki, Hidefumi; Ohkubo, Seiji; Maeda, Takashi; Hayabuchi, Naofumi

    2010-11-20

    The purpose of this study was to examine the correlation between the basic imaging properties of two digital radiographic X-ray systems with a direct conversion flat-panel detector and their image qualities, which were evaluated by the observer in hard copy and soft copy studies. The subjective image quality was evaluated and compared in terms of the low-contrast detectability and image sharpness in the two digital radiographic X-ray systems. We applied the radiographs of a contrast detail phantom to the evaluation of low-contrast detectability and analyzed the contrast detail diagrams. Finally, low-contrast detectability was evaluated by the image quality figure (IQF) calculated from the contrast detail diagrams. Also, the subjective image sharpness of human dry bones of two systems was examined and evaluated by the normalized-rank method. The results indicated that System A tended to provide superior subjective image quality compared to System B in both observer studies. We also found high correlations between IQFs and basic imaging properties, such as the noise power spectrum (NPS) and the noise equivalent quantum (NEQ). In conclusion, the low-contrast detectability of the two digital radiographic X-ray systems with a direct conversion flat-panel detector corresponded to the NPS and the NEQ in both outputs (soft copy and hard copy). On the other hand, the subjective image sharpness of human dry bones was affected by their noise properties.

  9. The Weighted Airman Promotion System: Standardizing Test Scores

    Science.gov (United States)

    2008-01-01

    42 Approaches to Standardizing PFE /SKT Scores...NPS non–prior service OSD Office of the Secretary of Defense OSI Office of Special Investigations PFE Promotion Fitness Exam RAW Retrieval Application...both the Promotion Fitness Exam ( PFE ) and Specialty Knowledge Test (SKT). Using a percentile ranking was one way to standardize because every AFSC

  10. Automatic orientation correction for radiographs

    Science.gov (United States)

    Luo, Hui; Luo, Jiebo; Wang, Xiaohui

    2006-03-01

    In picture archiving and communications systems (PACS), images need to be displayed in standardized ways for radiologists' interpretations. However, for most radiographs acquired by computed radiography (CR), digital radiography (DR), or digitized films, the image orientation is undetermined because of the variation of examination conditions and patient situations. To address this problem, an automatic orientation correction method is presented. It first detects the most indicative region for orientation in a radiograph, and then extracts a set of low-level visual features sensitive to rotation from the region. Based on these features, a trained classifier based on a support vector machine is employed to recognize the correct orientation of the radiograph and reorient it to a desired position. A large-scale experiment has been conducted on more than 12,000 radiographs covering a large variety of body parts and projections to validate the method. The overall performance is quite promising, with the success rate of orientation correction reaching 95.2%.

  11. Clinical Scoring Systems in Predicting the Outcome of Acute Upper Gastrointestinal Bleeding; a Narrative Review

    Directory of Open Access Journals (Sweden)

    Hanieh Ebrahimi Bakhtavar

    2017-01-01

    Full Text Available Prediction of the outcome and severity of acute upper gastrointestinal bleeding (UGIB has significant importance in patient care, disposition, and determining the need for emergent endoscopy. Recent international recommendations endorse using scoring systems for management of non-variceal UGIB patients. To date, different scoring systems have been developed for predicting the risk of 30-day mortality and re-bleeding. We have discussed the screening performance characteristics of Baylor bleeding score, the Rockall risk scoring score, Cedars-Sinai Medical Center predictive index, Glasgow Blatchford score, T-score, and AIMS65 systems, in the present review.Based on the results of this survey, there are only 3 clinical decision rules that can predict the outcome of UGIB patients, independent from endoscopy. Among these, only Glasgow Blatchford score was highly sensitive for predicting the risk of 30-day mortality and re-bleeding, simultaneously. 

  12. Automatic hanging protocol for chest radiographs

    Science.gov (United States)

    Luo, Hui; Hao, Wei; Cornelius, Craig

    2005-04-01

    Chest radiography is one of the most widely used techniques in diagnostic imaging. It makes up at least one third of all conventional diagnostic radiographic procedures in hospitals. However, in both film-screen and computed radiography, images are often digitized with the view and orientation unknown or mislabeled, which causes inefficiency in displaying them in the picture archive and communication system (PACS). Hence, the goal of this work is to provide a robust, efficient, and automatic hanging protocol for chest radiographs. To achieve it, the method star ts with recognition by extracting a set of distinctive features from chest radiographs. Next, a well-defined probabilistic classifier is used to train and classify the radiographs. Identifying the orientation of the radiographs is performed by an efficient algorithm which locates the neck, heart, and abdomen positions in radiographs. The initial experiment was performed on radiographs collected from daily routine chest exams in hospitals, and it has shown promising results.

  13. Introducing the HOPE (Hypospadias Objective Penile Evaluation)-score: A validation study of an objective scoring system for evaluating cosmetic appearance in hypospadias patients

    NARCIS (Netherlands)

    Toorn, F. van der; Jong, T.P. de; Gier, R.P.E. de; Callewaert, P.R.; Horst, E.H. van der; Steffens, M.G.; Hoebeke, P.; Nijman, R.J.; Bush, N.C.; Wolffenbuttel, K.P.; Heijkant, M.M. van den; Capelle, J.W. van; Wildhagen, M.; Timman, R.; Busschbach, J.J. van

    2013-01-01

    OBJECTIVE: To determine the reliability and internal validity of the Hypospadias Objective Penile Evaluation (HOPE)-score, a newly developed scoring system assessing the cosmetic outcome in hypospadias. PATIENTS AND METHODS: The HOPE scoring system incorporates all surgically-correctable items: posi

  14. Introducing the HOPE (Hypospadias Objective Penile Evaluation)-score : A validation study of an objective scoring system for evaluating cosmetic appearance in hypospadias patients

    NARCIS (Netherlands)

    van der Toorn, Fred; de Jong, Tom P. V. M.; de Gier, Robert P. E.; Callewaert, Piet R. H.; van der Horst, Eric H. J. R.; Steffens, Martijn G.; Hoebeke, Piet; Nijman, Rien J. M.; Bush, Nicol C.; Wolffenbuttel, Katja P.; van den Heijkant, Marleen M. C.; van Capelle, Jan-Willem; Wildhagen, Mark; Timman, Reinier; van Busschbach, Jan J. V.

    2013-01-01

    Objective: To determine the reliability and internal validity of the Hypospadias Objective Penile Evaluation (HOPE)-score, a newly developed scoring system assessing the cosmetic outcome in hypospadias. Patients and methods: The HOPE scoring system incorporates all surgically-correctable items: posi

  15. IMPROVED MARKING AND CHARACTERIZING OF PULMONARY NODULES ON DIGITAL RADIOGRAPHS USING A COMPUTER-AIDED DIAGNOSIS SYSTEM

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Objective To evaluate and reduce inter-observer variations in the detection and characterization of pulmonary nodules on digital radiograph (DR) chest images.Methods Two hundreds and thirty-two new posterior-anterior DR chest images were collected from out-patient screening patients. Consensus was reached by two experienced radiologists on the marking, rating, and segmentation of small actionable nodules ranged from 5 to 15 mm in diameter using a computer-aided diagnosis (CAD) system. Both their own nodule findings and the computer's automatic nodule detection results were analyzed to make the consensus.Nodules identified together with corresponding likelihood rating and segmentation results were referred as "Gold Standard". Two un-experienced radiologists were asked to first mark and characterize suspicious nodules independently, then were allowed to consult the computer nodule detection results and change their decisions.Results Large inter-observer variations in pulmonary nodule identification and characterization on DR chest images were observed between un-experienced radiologists. Un-experienced radiologists could greatly benefit from the CAD system, including substantial decrease of inter-observer variation and improvement of nodule detection rates. Moreover,radiologists with different levels of skillfulness could achieve similar high level performance after using the CAD system.Conclusion The CAD system shows a high potential for providing a valuable assistance to the examination of DR chest images.

  16. Twin robotic x-ray system for 2D radiographic and 3D cone-beam CT imaging

    Science.gov (United States)

    Fieselmann, Andreas; Steinbrener, Jan; Jerebko, Anna K.; Voigt, Johannes M.; Scholz, Rosemarie; Ritschl, Ludwig; Mertelmeier, Thomas

    2016-03-01

    In this work, we provide an initial characterization of a novel twin robotic X-ray system. This system is equipped with two motor-driven telescopic arms carrying X-ray tube and flat-panel detector, respectively. 2D radiographs and fluoroscopic image sequences can be obtained from different viewing angles. Projection data for 3D cone-beam CT reconstruction can be acquired during simultaneous movement of the arms along dedicated scanning trajectories. We provide an initial evaluation of the 3D image quality based on phantom scans and clinical images. Furthermore, initial evaluation of patient dose is conducted. The results show that the system delivers high image quality for a range of medical applications. In particular, high spatial resolution enables adequate visualization of bone structures. This system allows 3D X-ray scanning of patients in standing and weight-bearing position. It could enable new 2D/3D imaging workflows in musculoskeletal imaging and improve diagnosis of musculoskeletal disorders.

  17. Temporomandibular joint disc; a proposed histopathological degeneration grading score system

    OpenAIRE

    2010-01-01

    Summary. Aims: The purpose of this study was to draw up a TMJ disc histopathological score that is a semiquantitative transcription of the entire spectrum of TMJ disc degenerative diseases related to changes in disc tissue, and then validate the proposed grading, in order to contribute to a standardized histopathological diagnosis. Methods: Sections from sixty two temporomandibular joint disc specimens affected by tissue degenerative changes and stained with Hematox...

  18. The rat whole embryo culture assay using the Dysmorphology Score system.

    Science.gov (United States)

    Zhang, Cindy; Panzica-Kelly, Julie; Augustine-Rauch, Karen

    2013-01-01

    The rat whole embryo culture (WEC) system has been used extensively for characterizing teratogenic properties of test chemicals. In this chapter, we describe the methodology for culturing rat embryos as well as a new morphological score system, the Dysmorphology Score (DMS) system for assessing morphology of mid gestation (gestational day 11) rat embryos. In contrast to the developmental stage focused scoring associated with the Brown and Fabro score system, this new score system assesses the respective degree of severity of dysmorphology, which delineates normal from abnormal morphology of specific embryonic structures and organ systems. This score system generates an approach that allows rapid identification and quantification of adverse developmental findings, making it conducive for characterization of compounds for teratogenic properties and screening activities.

  19. Radiographic neuroanatomy

    Energy Technology Data Exchange (ETDEWEB)

    Fischer, H.W.; Ketonen, L.

    1990-01-01

    The authors map out the central nervous system as it is seen through X-ray imaging, computerized tomography, magnetic resonance, and nuclear medicine. Comparing the visual aspect of the central nervous system as it appears in both dissections and atlases of the human body with what a resident can expect to see in a clinical environment, the work is a reference to the neuroanatomy, and the technology used to observe it.

  20. Emotional Intelligence Throughout the Lifecycle of Australian Radiographers.

    Science.gov (United States)

    Lewis, Sarah Jayne; Eccles, Grace Rose; Mackay, Stuart James; Robinson, John

    2017-09-01

    To measure global and domain trait emotional intelligence (EI) throughout the professional lifecycle of Australian radiographers and report the trends. A combination retrospective and prospective cross-sectional multiple-cohort study using the Trait Emotional Intelligence Questionnaire Short Form (TEIQue-SF) was designed to collect global and domain trait EI scores of several populations, including radiography students (n = 95), inexperienced radiographers (0-5 years' experience; n = 94), experienced radiographers (≥ 6 years' experience; n = 451), chief radiographers (n = 107), clinical educators (n = 24), application specialists (n = 24), and radiographers working in education (n = 15). Mean EI scores were calculated and statistical tests were performed to determine whether significant differences existed among the groups. Statistically significant differences were found among populations for global EI and the domains of self-control and well-being, with students demonstrating consistently lower scores than qualified radiographers (P ≥ .001). Chief radiographers demonstrated higher scores for well-being than inexperienced radiographers, radiographers working in education, and students (P < .001). Global EI scores increased steadily throughout the professional lifecycle of Australian radiographers, plateauing at 10 years of clinical experience. Chief radiographers demonstrated the highest scores for well-being, which is consistent with prior research acknowledging the importance of EI in organizational leadership. Students demonstrated lower EI scores likely because they are at the beginning of their careers and might not yet perceive themselves as confident or successful. Higher EI scores are expected in normal career advancement, plateauing at about 10 years of clinical experience. A statistically significant difference exists between global and domain trait EI scores throughout the professional lifecycle of Australian radiologic technologists. Global trait

  1. The longitudinal reliability and responsiveness of the OMERACT Hand Osteoarthritis Magnetic Resonance Imaging Scoring System (HOAMRIS)

    DEFF Research Database (Denmark)

    Haugen, Ida K.; Eshed, Iris; Gandjbakhch, Frederique

    2015-01-01

    Objective. To evaluate the interreader reliability of change scores and the responsiveness of the OMERACT Hand Osteoarthritis (OA) Magnetic Resonance Image (MRI) Scoring System (HOAMRIS). Methods. Paired MRI (baseline and 5-yr followup) from 20 patients with hand OA were scored with known time se...

  2. Evaluation of scoring systems in predicting acute appendicitis in children.

    Science.gov (United States)

    Macco, Sven; Vrouenraets, Bart C; de Castro, Steve M M

    2016-12-01

    Acute appendicitis can be difficult to diagnose, especially in children. Appendicitis scoring systems have been developed as a diagnostic tool to improve the decision-making process in patients with suspected acute appendicitis. This study evaluates the Appendicitis Inflammatory Response score, Alvarado score, and Pediatric Appendicitis Score in children suspected of acute appendicitis. Data were collected retrospectively. All children younger than 18 years suspected of acute appendicitis who presented to the emergency department between January 2006 and June 2014 were included in this study. Variables were registered to evaluate 3 different appendicitis scoring systems. The diagnostic performance of the 3 scores was analyzed using the area under the receiver-operating curve and by calculating the diagnostic performances at different cut-off points. The present study included 747 consecutive children. There were 399 boys (53%) and 348 girls (47%) with a mean age of 11 years (range, 1-17 years). In total, 269 children (36%) were diagnosed with acute appendicitis. The area under the receiver-operating curve of the Appendicitis Inflammatory Response score was 0.90, the Alvarado score was 0.87, and the Pediatric Appendicitis Score was 0.82 (P Appendicitis Inflammatory Response score were better at predicting an acute appendicitis than that of the Alvarado score and Pediatric Appendicitis Score. In children with a low-risk acute appendicitis, false negative rates of 14% for the Appendicitis Inflammatory Response, 7% for the Alvarado, and 18% for the Pediatric Appendicitis Score were measured. In this study, the Appendicitis Inflammatory Response score had the highest discriminating power and outperformed the Alvarado score and Pediatric Appendicitis Score in predicting acute appendicitis in children. Excluding acute appendicitis safely in children with the scoring systems still remains uncertain. Copyright © 2016 Elsevier Inc. All rights reserved.

  3. Clicker Score Trajectories and Concept Inventory Scores as Predictors for Early Warning Systems for Large STEM Classes

    Science.gov (United States)

    Lee, Un Jung; Sbeglia, Gena C.; Ha, Minsu; Finch, Stephen J.; Nehm, Ross H.

    2015-12-01

    Increasing the retention of STEM (science, technology, engineering, and mathematics) majors has recently emerged as a national priority in undergraduate education. Since poor performance in large introductory science and math courses is one significant factor in STEM dropout, early detection of struggling students is needed. Technology-supported "early warning systems" (EWSs) are being developed to meet these needs. Our study explores the utility of two commonly collected data sources—pre-course concept inventory scores and longitudinal clicker scores—for use in EWS, specifically, in determining the time points at which robust predictions of student success can first be established. The pre-course diagnostic assessments, administered to 287 students, included two concept inventories and one attitude assessment. Clicker question scores were also obtained for each of the 37 class sessions. Additionally, student characteristics (sex, ethnicity, and English facility) were gathered in a survey. Our analyses revealed that all variables were predictive of final grades. The correlation of the first 3 weeks of clicker scores with final grades was 0.53, suggesting that this set of variables could be used in an EWS starting at the third week. We also used group-based trajectory models to assess whether trajectory patterns were homogeneous in the class. The trajectory analysis identified three distinct clicker performance patterns that were also significant predictors of final grade. Trajectory analyses of clicker scores, student characteristics, and pre-course diagnostic assessment appear to be valuable data sources for EWS, although further studies in a diversity of instructional contexts are warranted.

  4. Further Validation of the Qualitative Scoring System for the Modified Bender-Gestalt Test.

    Science.gov (United States)

    Brannigan, Gary G.; And Others

    1995-01-01

    Compares the Qualitative Scoring System and the Developmental Scoring Systems, both Bender-Gestalt tests, in predicting achievement on the Metropolitan Achievement Test (MAT). In this study, first through fourth graders (n=409) from regular elementary schools were subjected to both tests; both systems correlated significantly with school…

  5. Deceleration in maturation of bone during adolescent age in achondroplasia - a retrospective study using RUS scoring system

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Suk-Ha [Konkuk University Hospital, Department of Orthopedics, Seoul (Korea); Modi, Hitesh N.; Suh, Seung Woo [Korea University Guro Hospital, Scoliosis Research Institute, Department of Orthopedics, Seoul (Korea); Song, Hae-Ryong; Hazra, Sunit; Modi, Chetna [Korea University Guro Hospital, Rare Disease Institute, Department of Orthopedics, Seoul (Korea)

    2009-02-15

    Knowledge of bone age in achondroplasia is required for the prediction of adult height, timings of limb lengthening, and epiphysiodesis procedures. The purpose of this investigation was to determine the differences in skeletal age in achondroplasia and a control population with the Tanner-Whitehouse 3 method using the RUS score and to determine the right age for the interventional procedure for limb lengthening procedure or deformity correction in these patients. Left hand radiographs of 34 patients (age range, 5-18 years) with achondroplasia were evaluated for skeletal age using the RUS scoring system, which were compared with the left hand radiographs of 41 patients (age range, 5-18 years) without achondroplasia measuring skeletal age. The difference in chronological age and RUS bone age were evaluated statistically according to gender and age group. In the achondroplasia group, chronological age were 10.5{+-}4.3 years for males and 10.1{+-}3.6 years for females and RUS bone age were 9.2{+-}4.0 years for males and 8.9{+-}3.4 years for females, which showed statistically significantly difference (males p=0.0003 and females p < 0.0001), while in the control group, chronological age were 11.1{+-}2.9 years for males and 10.7{+-}3.4 years for females and RUS bone age were 11.2{+-}3.4 years for males and 10.7{+-}3.3 years for females, which did not show statistically significantly difference (males p=0.54 and females p=0.76). Our finding suggested a delay of 1.4 years for males and 1.2 years for females in the maturation of bone in achondroplasia patients. Difference between chronological age and RUS bone age was 0.9{+-}1.1 for <10 years and 1.6{+-}0.9 for >10 years in the study group, while 0.1{+-}1.1 for <10 years and -0.2 {+-} 0.6 for >10 years in the control group, which also showed >statistically significant difference (<10 years p=0.04 and >10 years p<0.0001). These differences indicate that there was a delay in the maturation of bones by 1 year in the group <10

  6. Comparison of risk scoring systems for patients presenting with upper gastrointestinal bleeding

    DEFF Research Database (Denmark)

    Stanley, Adrian J; Laine, Loren; Dalton, Harry R

    2017-01-01

    OBJECTIVE: To compare the predictive accuracy and clinical utility of five risk scoring systems in the assessment of patients with upper gastrointestinal bleeding. DESIGN: International multicentre prospective study. SETTING: Six large hospitals in Europe, North America, Asia, and Oceania....... RESULTS: The Glasgow Blatchford score was best (area under the receiver operating characteristic curve (AUROC) 0.86) at predicting intervention or death compared with the full Rockall score (0.70), PNED score (0.69), admission Rockall score (0.66, and AIMS65 score (0.68) (all P... thresholds of ≥4 for PNED, ≥2 for AIMS65, ≥4 for admission Rockall, and ≥5 for full Rockall were optimal at predicting death, with sensitivities of 65.8-78.6% and specificities of 65.0-65.3%. No score was helpful at predicting rebleeding or length of stay. CONCLUSIONS: The Glasgow Blatchford score has high...

  7. Communication of Unexpected and Significant Findings on Chest Radiographs With an Automated PACS Alert System.

    LENUS (Irish Health Repository)

    Hayes, Sara A

    2014-08-01

    An integral part of realizing the enormous potential of imaging in patient care is close communication between radiologists and referring physicians. One key element of this process is the communication of unexpected significant findings. The authors examined the performance of a PACS-based alert system in the appropriate communication of reports containing unexpected significant findings to referring physicians.

  8. Detection of proximal caries with high-resolution and standard resolution digital radiographic systems

    NARCIS (Netherlands)

    Berkhout, W.E.R.; Verheij, H.G.C.; Syriopoulos, K.; Li, G.; Sanderink, G.C.H.; van der Stelt, P.F.

    2007-01-01

    Aims: The aim of this study was to: (1) compare the diagnostic accuracy of the high-resolution and standard resolution settings of four digital imaging systems for caries diagnosis and (2) compare the effect on the diagnostic accuracy of reducing the high-resolution image sizes to the standard

  9. Comparison of scoring systems for invasive pests using ROC analysis and Monte Carlo simulations.

    Science.gov (United States)

    Makowski, David; Mittinty, Murthy Narasimha

    2010-06-01

    Different international plant protection organisations advocate different schemes for conducting pest risk assessments. Most of these schemes use structured questionnaire in which experts are asked to score several items using an ordinal scale. The scores are then combined using a range of procedures, such as simple arithmetic mean, weighted averages, multiplication of scores, and cumulative sums. The most useful schemes will correctly identify harmful pests and identify ones that are not. As the quality of a pest risk assessment can depend on the characteristics of the scoring system used by the risk assessors (i.e., on the number of points of the scale and on the method used for combining the component scores), it is important to assess and compare the performance of different scoring systems. In this article, we proposed a new method for assessing scoring systems. Its principle is to simulate virtual data using a stochastic model and, then, to estimate sensitivity and specificity values from these data for different scoring systems. The interest of our approach was illustrated in a case study where several scoring systems were compared. Data for this analysis were generated using a probabilistic model describing the pest introduction process. The generated data were then used to simulate the outcome of scoring systems and to assess the accuracy of the decisions about positive and negative introduction. The results showed that ordinal scales with at most 5 or 6 points were sufficient and that the multiplication-based scoring systems performed better than their sum-based counterparts. The proposed method could be used in the future to assess a great diversity of scoring systems.

  10. Computed radiographic image post-processing for automatic optimal display in picture archiving and communication system

    Science.gov (United States)

    Zhang, Jianguo; Zhou, Zheng; Zhuang, Jun; Huang, H. K.

    2000-04-01

    This paper presents the key post-processing algorithms and their software implementing for CR image automatic optimal display in picture archiving and communication system, which compliant with DICOM model of the image acquisition and presentation chain. With the distributed implementation from the acquisition to the display, we achieved the effects of better image visual quality, fast image communication and display, as well as data integrity of archived CR images in PACS.

  11. Application of a computed tomography based cystic fibrosis scoring system to chest tomosynthesis

    Science.gov (United States)

    Söderman, Christina; Johnsson, Åse; Vikgren, Jenny; Rystedt, Hans; Ivarsson, Jonas; Rossi Norrlund, Rauni; Nyberg Andersson, Lena; Bâth, Magnus

    2013-03-01

    In the monitoring of progression of lung disease in patients with cystic fibrosis (CF), recurrent computed tomography (CT) examinations are often used. The relatively new imaging technique chest tomosynthesis (CTS) may be an interesting alternative in the follow-up of these patients due to its visualization of the chest in slices at radiation doses and costs significantly lower than is the case with CT. A first step towards introducing CTS imaging in the diagnostics of CF patients is to establish a scoring system appropriate for evaluating the severity of CF pulmonary disease based on findings in CTS images. Previously, several such CF scoring systems based on CT imaging have been published. The purpose of the present study was to develop a CF scoring system for CTS, by starting from an existing scoring system dedicated for CT images and making modifications regarded necessary to make it appropriate for use with CTS images. In order to determine any necessary changes, three thoracic radiologists independently used a scoring system dedicated for CT on both CT and CTS images from CF patients. The results of the scoring were jointly evaluated by all the observers, which lead to suggestions for changes to the scoring system. Suggested modifications include excluding the scoring of air trapping and doing the scoring of the findings in quadrants of the image instead of in each lung lobe.

  12. Doses under automatic exposure control (AEC) for direct digital radiographic (DDR) X-ray systems.

    Science.gov (United States)

    Bowden, Louise; Faulkner, Ronan; Clancy, Conor; Gallagher, Aoife; Devine, Mark; Gorman, Dermot; O'Reilly, Geraldine; Dowling, Anita

    2011-09-01

    Current guidelines quote tolerances for automatic exposure control (AEC) device performance for X-ray systems as 'Baseline ± X %'. However, in the situation where a baseline figure has not yet been achieved, as in the case of commissioning assessments, this tolerance is not relevant. The purpose of this work is to provide mean doses for direct digital radiography (DDR) X-ray system, operating in AEC, against which comparisons can be made. Dose measurements have been recorded under AEC operation on 29 DDR detectors from three different manufacturers. Two different testing protocols were examined: (1) water equivalent phantoms in front of the DDR detector and (2) aluminium block at the tube head. The average patient exit dose, using the aluminium block was 4.6 μGy with the antiscatter grid in place and 4.0 μGy with the grid removed. Using the water phantoms, the average dose was measured at 17.1 μGy with the antiscatter grid in place and 5.4 μGy with grid removed. Based on these results, it is clear that different testing configurations significantly impact on the measured dose.

  13. A radiographic imaging system based upon a 2-D silicon microstrip sensor

    CERN Document Server

    Papanestis, A; Corrin, E; Raymond, M; Hall, G; Triantis, F A; Manthos, N; Evagelou, I; Van den Stelt, P; Tarrant, T; Speller, R D; Royle, G F

    2000-01-01

    A high resolution, direct-digital detector system based upon a 2-D silicon microstrip sensor has been designed, built and is undergoing evaluation for applications in dentistry and mammography. The sensor parameters and image requirements were selected using Monte Carlo simulations. Sensors selected for evaluation have a strip pitch of 50mum on the p-side and 80mum on the n-side. Front-end electronics and data acquisition are based on the APV6 chip and were adapted from systems used at CERN for high-energy physics experiments. The APV6 chip is not self-triggering so data acquisition is done at a fixed trigger rate. This paper describes the mammographic evaluation of the double sided microstrip sensor. Raw data correction procedures were implemented to remove the effects of dead strips and non-uniform response. Standard test objects (TORMAX) were used to determine limiting spatial resolution and detectability. MTFs were determined using the edge response. The results indicate that the spatial resolution of the...

  14. An Evaluation of the IntelliMetric[SM] Essay Scoring System

    Science.gov (United States)

    Rudner, Lawrence M.; Garcia, Veronica; Welch, Catherine

    2006-01-01

    This report provides a two-part evaluation of the IntelliMetric[SM] automated essay scoring system based on its performance scoring essays from the Analytic Writing Assessment of the Graduate Management Admission Test[TM] (GMAT[TM]). The IntelliMetric system performance is first compared to that of individual human raters, a Bayesian system…

  15. Comparison of Two Scoring Systems for the Modified Version of the Bender-Gestalt Test.

    Science.gov (United States)

    Schachter, Steven; And Others

    1991-01-01

    Examined relative utility of two scoring systems for Modified Version of Bender-Gestalt Test in predicting performance on Developmental Test of Visual-Motor Integration. Findings from 53 kindergarten and 47 first grade students indicated that Qualitative Scoring System was significantly better predictor of visual-motor integration skills than…

  16. Comparison of the Koppitz and Watkins Scoring Systems for the Bender Gestalt Test.

    Science.gov (United States)

    Johnston, Cris W.; Lanak, Brenda

    1985-01-01

    The Bender Gestalt Test was administered to 25 children (7-10 years old) referred for neuropsychological assessment and scored using the Koppitz system and the Watkins system. Although the scores obtained using the two different sets of criteria were highly correlated, the Watkins rules produced generally better performance. (Author/CL)

  17. The Reliability and Structure of the Classroom Assessment Scoring System in German Pre-Schools

    Science.gov (United States)

    Stuck, Andrea; Kammermeyer, Gisela; Roux, Susanna

    2016-01-01

    This study examined the reliability and structure of the Classroom Assessment Scoring System (CLASS; Pianta, R. C., K. M. La Paro, and B. K. Hamre. 2008. "Classroom Assessment Scoring System. Manual Pre-K." Baltimore, MD: Brookes) and the quality of interactional processes in a German pre-school setting, drawing on a sample of 390…

  18. Validation of the prognostic value of histologic scoring systems in primary sclerosing cholangitis

    DEFF Research Database (Denmark)

    de Vries, Elisabeth M G; de Krijger, Manon; Färkkilä, Martti

    2017-01-01

    Histologic scoring systems specific for primary sclerosing cholangitis (PSC) are not validated. We recently determined the applicability and prognostic value of three histological scoring systems in a single PSC cohort. The aim of this study was to validate their prognostic use and reproducibility...

  19. Towards Establishing a Standardized Magnetic Resonance Imaging Scoring System for Temporomandibular Joints in Juvenile Idiopathic Arthritis

    DEFF Research Database (Denmark)

    Tolend, Mirkamal A; Twilt, Marinka; Cron, Randy Q

    2017-01-01

    of a MRI scoring system for TMJs has important clinical utility in timely improvement of diagnosis, and serving as an outcome measure. We report on a multi-institutional collaboration towards developing a TMJ MRI scoring system for JIA. METHODS: Seven readers independently assessed MRI scans from 21...

  20. An Iranian scoring system for diagnosing Buerger's disease.

    Directory of Open Access Journals (Sweden)

    Mohammad Ramin

    2014-01-01

    Full Text Available Buerger's disease or thromboangiitis obliterans (TAO seems to be common in IR Iran, The present study aimed to evaluate an Iranian population with Buerger's disease in order to suggest a diagnostic criterion for Buerger's disease based on the most frequent findings and to compare it with Papa diagnostic criteria. In a cross-sectional study, all patients with resting limb pain, limb ischemic ulcers, intermittent claudication and limb ischemia who referred to the Vascular Clinic of Sina Hospital during 2009-2011 were evaluated. The patients were allocated to Buerger's and non-Buerger's groups; Evaluating 122 patients (61 in each group, according to the model each clinical manifestations and risk factors in the patients with Buerger's disease obtained a score. Absent pulsation, abnormal distal Doppler sonography and ischemic ulcer were respectively present in 58 (95.1%, 58 (95.1% and 49 (80.3% individuals with Buerger's disease. Multivariate linear regression analysis and multivariate logistic regression analysis were used for modeling. Considering the model finding findings, diagnostic criteria including age, sex, smoking, Raynaud's phenomenon, abnormal proximal Doppler, diabetes mellitus and hyperlipidemia were suggested (R2=0.582; the sensitivity and specificity of the criteria was respectively 95.1% and 78.7%. Compared with Papa criteria, Kappa coefficient was measured at 0.66 with a P-value<0.001. It seems that the recommended criteria have an acceptable accuracy in diagnosing Buerger's disease, especially in the Iranian population; however, it is necessary to conduct more studies with larger sample sizes to evaluate the criteria, especially in other populations.

  1. Bank Customer Credit Scoring by Using Fuzzy Expert System

    Directory of Open Access Journals (Sweden)

    Ali Bazmara

    2014-10-01

    Full Text Available Granting banking facility is one of the most important parts of the financial supplies for each bank. So this activity becomes more valuable economically and always has a degree of risk. These days several various developed Artificial Intelligent systems like Neural Network, Decision Tree, Logistic Regression Analysis, Linear Discriminant Analysis and etc, are used in the field of granting facilities that each of this system owns its advantages and disadvantages. But still studying and working are needed to improve the accuracy and performance of them. In this article among other AI methods, fuzzy expert system is selected. This system is based on data and also extracts rules by using data. Therefore the dependency to experts is omitted and interpretability of rules is obtained. Validity of these rules could be confirmed or rejected by banking affair experts. For investigating the performance of proposed system, this system and some other methods were performed on various datasets. Results show that the proposed algorithm obtained better performance among the others.

  2. Chest radiographic staging in allergic bronchopulmonary aspergillosis: relationship with immunological findings.

    LENUS (Irish Health Repository)

    Kiely, J L

    2012-02-03

    The question of whether a chest radiographic severity staging system could be correlated with standard blood\\/serum diagnostic indices in allergic bronchopulmonary aspergillosis (ABPA) was addressed in 41 patients. Asthma and positive Aspergillus fumigatus (AF) serology were considered essential diagnostic inclusion criteria. Eosinophil count, serum immunoglobulin (Ig)E and immediate skin hypersensitivity were also tested to grade patients as "definite" or "likely" ABPA. Definite cases had all five of these factors present, whereas likely cases had three or more. Chest radiographs were examined by experienced radiologists blinded to the clinical data. The six-stage radiographic score (0-5) was based on the severity and duration of changes seen: stage 0: normal; stage 1: transient hyperinflation; stage 2: transient minor changes; stage 3: transient major changes; stage 4: permanent minor changes; and stage 5: permanent major changes. Significant positive correlations (p<0.05) were observed between peak AF titres (expressed as an index), peak eosinophil count and radiographic severity stage. When considered as subgroups, these correlations approached, but did not reach, significance for the group with "likely" ABPA (n=28), but in the group with definite ABPA (n=13), there was a high correlation between radiographic score and peak AF index (r=0.59), as well as peak eosinophil count (r=0.62). This study suggests that the peak Aspergillus fumigatus index and eosinophil counts correlate best with the severity of radiographic stages in allergic bronchopulmonary aspergillosis. This chest radiographic staging system may be useful in the clinical assessment and management of patients with allergic bronchopulmonary aspergillosis, particularly in those patients with more severe radiographic stages.

  3. Developing a magnetic resonance imaging scoring system for peripheral psoriatic arthritis

    DEFF Research Database (Denmark)

    McQueen, Fiona; Lassere, Marissa; Bird, Paul

    2007-01-01

    We describe the first steps in developing an OMERACT magnetic resonance imaging (MRI) scoring system for peripheral psoriatic arthritis (PsA). A preexisting MRI dataset (finger joints) from 10 patients with PsA was scored by 4 readers for bone erosion, bone edema, synovitis, tendinopathy, and ext......We describe the first steps in developing an OMERACT magnetic resonance imaging (MRI) scoring system for peripheral psoriatic arthritis (PsA). A preexisting MRI dataset (finger joints) from 10 patients with PsA was scored by 4 readers for bone erosion, bone edema, synovitis, tendinopathy...

  4. An algorithm to unveil the inner structure of objects concealed by beam divergence in radiographic image acquisition systems

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, G. L.; Silvani, M. I. [Instituto de Engenharia Nuclear - CNEN, Caixa Postal 68550, CEP 21945-970, Rio de Janeiro (Brazil); Lopes, R. T. [Laboratório de Instrumentação Nuclear - UFRJ, Caixa Postal 68509, CEP 21945-970, Rio de Janeiro (Brazil)

    2014-11-11

    Two main parameters rule the performance of an Image Acquisition System, namely, spatial resolution and contrast. For radiographic systems using cone beam arrangements, the farther the source, the better the resolution, but the contrast would diminish due to the lower statistics. A closer source would yield a higher contrast but it would no longer reproduce the attenuation map of the object, as the incoming beam flux would be reduced by unequal large divergences and attenuation factors. This work proposes a procedure to correct these effects when the object is comprised of a hull - or encased in it - possessing a shape capable to be described in analytical geometry terms. Such a description allows the construction of a matrix containing the attenuation factors undergone by the beam from the source until its final destination at each coordinate on the 2D detector. Each matrix element incorporates the attenuation suffered by the beam after its travel through the hull wall, as well as its reduction due to the square of distance to the source and the angle it hits the detector surface. When the pixel intensities of the original image are corrected by these factors, the image contrast, reduced by the overall attenuation in the exposure phase, are recovered, allowing one to see details otherwise concealed due to the low contrast. In order to verify the soundness of this approach, synthetic images of objects of different shapes, such as plates and tubes, incorporating defects and statistical fluctuation, have been generated, recorded for further comparison and afterwards processed to improve their contrast. The developed algorithm which, generates processes and plots the images has been written in Fortran 90 language. As the resulting final images exhibit the expected improvements, it therefore seemed worthwhile to carry out further tests with actual experimental radiographies.

  5. Person Identification System Using Fusion of Matching Score of Iris

    Directory of Open Access Journals (Sweden)

    Yogeshwari Borse

    2012-05-01

    Full Text Available Human iris provides a unique structure suitable for non-invasive biometric assessment. In particular the irises are as distinct as fingerprints even for twins. In this paper a system for person identification is presented that uses a technique of localization, alignment, feature extraction, matching the features of irises and finally the decision regarding the degree of match based on hamming distance. A CASIA iris database of iris images has been used in the implementation of the iris recognition system. The results show that proposed method is quite effective

  6. Comparison of risk scoring systems for patients presenting with upper gastrointestinal bleeding: international multicentre prospective study.

    Science.gov (United States)

    Stanley, Adrian J; Laine, Loren; Dalton, Harry R; Ngu, Jing H; Schultz, Michael; Abazi, Roseta; Zakko, Liam; Thornton, Susan; Wilkinson, Kelly; Khor, Cristopher J L; Murray, Iain A; Laursen, Stig B

    2017-01-04

     To compare the predictive accuracy and clinical utility of five risk scoring systems in the assessment of patients with upper gastrointestinal bleeding.  International multicentre prospective study.  Six large hospitals in Europe, North America, Asia, and Oceania.  3012 consecutive patients presenting over 12 months with upper gastrointestinal bleeding.  Comparison of pre-endoscopy scores (admission Rockall, AIMS65, and Glasgow Blatchford) and post-endoscopy scores (full Rockall and PNED) for their ability to predict predefined clinical endpoints: a composite endpoint (transfusion, endoscopic treatment, interventional radiology, surgery, or 30 day mortality), endoscopic treatment, 30 day mortality, rebleeding, and length of hospital stay. Optimum score thresholds to identify low risk and high risk patients were determined.  The Glasgow Blatchford score was best (area under the receiver operating characteristic curve (AUROC) 0.86) at predicting intervention or death compared with the full Rockall score (0.70), PNED score (0.69), admission Rockall score (0.66, and AIMS65 score (0.68) (all P<0.001). A Glasgow Blatchford score of ≤1 was the optimum threshold to predict survival without intervention (sensitivity 98.6%, specificity 34.6%). The Glasgow Blatchford score was better at predicting endoscopic treatment (AUROC 0.75) than the AIMS65 (0.62) and admission Rockall scores (0.61) (both P<0.001). A Glasgow Blatchford score of ≥7 was the optimum threshold to predict endoscopic treatment (sensitivity 80%, specificity 57%). The PNED (AUROC 0.77) and AIMS65 scores (0.77) were best at predicting mortality, with both superior to admission Rockall score (0.72) and Glasgow Blatchford score (0.64; P<0.001). Score thresholds of ≥4 for PNED, ≥2 for AIMS65, ≥4 for admission Rockall, and ≥5 for full Rockall were optimal at predicting death, with sensitivities of 65.8-78.6% and specificities of 65.0-65.3%. No score was helpful at predicting rebleeding or length

  7. Validating a Prognostic Scoring System for Postmastectomy Locoregional Recurrence in Breast Cancer

    Energy Technology Data Exchange (ETDEWEB)

    Cheng, Skye Hung-Chun, E-mail: skye@kfsyscc.org [Department of Radiation Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Clinical Research Office, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Tsai, Stella Y. [Department of Radiation Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Yu, Ben-Long [Department of Surgery, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Horng, Cheng-Fang [Clinical Research Office, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Chen, Chii-Ming [Department of Surgery, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Jian, James J. [Department of Radiation Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Chu, Nan-Min [Department of Medical Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Tsou, Mei-Hua [Department of Pathology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Liu, Mei-Ching [Department of Medical Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Huang, Andrew T. [Department of Medical Oncology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan (China); Department of Medicine, Duke University Medical Center, Durham, North Carolina (United States); Prosnitz, Leonard R. [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States)

    2013-03-15

    Purpose: This study is designed to validate a previously developed locoregional recurrence risk (LRR) scoring system and further define which groups of patients with breast cancer would benefit from postmastectomy radiation therapy (PMRT). Methods and Materials: An LRR risk scoring system was developed previously at our institution using breast cancer patients initially treated with modified radical mastectomy between 1990 and 2001. The LRR score comprised 4 factors: patient age, lymphovascular invasion, estrogen receptor negativity, and number of involved lymph nodes. We sought to validate the original study by examining a new dataset of 1545 patients treated between 2002 and 2007. Results: The 1545 patients were scored according to the previously developed criteria: 920 (59.6%) were low risk (score 0-1), 493 (31.9%) intermediate risk (score 2-3), and 132 (8.5%) were high risk (score ≥4). The 5-year locoregional control rates with and without PMRT in low-risk, intermediate-risk, and high-risk groups were 98% versus 97% (P=.41), 97% versus 91% (P=.0005), and 89% versus 50% (P=.0002) respectively. Conclusions: This analysis of an additional 1545 patients treated between 2002 and 2007 validates our previously reported LRR scoring system and suggests appropriate patients for whom PMRT will be beneficial. Independent validation of this scoring system by other institutions is recommended.

  8. Building an Image-Based System to automatically Score psoriasis

    DEFF Research Database (Denmark)

    G{'o}mez, D. Delgado; Carstensen, Jens Michael; Ersbøll, Bjarne Kjær

    2003-01-01

    the images. The system is tested on patients with the dermatological disease psoriasis. Temporal series of images are taken for each patient and the lesions are automatically extracted. Results indicate that to the images obtained are a good source for obtaining derived variables to track the lesion....

  9. Progress Scored in Management Information System at CAS

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ CAS initiative to upgrade its management information system (MIS) is making significant progress. Recently, 116 CAS subordinates have completed their online trial operation of a MIS project at the Academy, called Academia Resource Planning (ARP), marking an important phased achievement of the initiative.

  10. Primary amputation vs limb salvage in mangled extremity: a systematic review of the current scoring system

    OpenAIRE

    Schirò, Giuseppe Rosario; Sessa, Sergio; Piccioli, Andrea; MACCAURO, Giulio

    2015-01-01

    Background In the last decades a lot of new reconstructive techniques were developed for the treatment of mangled lower extremity. However failed attempt to limb salvage is related to high risk of mortality for the patient. Several scores were developed to establish guidelines for the decision to amputate or not, however in literature there is no consensus about the reliability of this scores. Methods The authors focused their attention on the most used score system to provide guidance of the...

  11. Chest radiographic image quality: comparison of asymmetric screen-film, digital storage phosphor, and digital selenium drum systems--preliminary study.

    Science.gov (United States)

    Beute, G H; Flynn, M J; Eyler, W R; Samei, E; Spizarny, D L; Zylak, C J

    1998-01-01

    Conventional screen-film radiography does not display all regions of the thorax satisfactorily. Three chest radiographic techniques display both the lung and the mediastinum with good contrast. These techniques are asymmetric screen-film (ASF), digital storage phosphor (DSP), and digital selenium drum (DSD) imaging. ASF systems use two asymmetric screen-film combinations to produce a wide-latitude image of the thorax with good contrast in the lungs. In DSP systems, image data are acquired digitally with a wide dynamic range by using the optical output of a photostimulable phosphor plate; in DSD systems, the wide-range digital image data are acquired by using the electronic charge generated on a drum coated with a thin layer of amorphous selenium. The appearance of a DSP or DSD radiograph is then determined by user-selected image processing operations: tone scaling, spatial frequency processing, and dynamic range compensation. Digital chest radiographs processed with strong regional equalization provide both excellent contrast in the lungs and effective display of the mediastinum and chest wall. At visual comparison, the high lung contrast and good mediastinal, retrocardiac, and subdiaphragmatic detail provided by the DSD method distinguish it from the other two methods.

  12. Explaining the Effect of a Grid by Using an Optical Analog to an X-ray Radiographic Imaging System

    Science.gov (United States)

    Honnicke, M. G.; Gavinho, L.; Cusatis, C.

    2008-01-01

    Compton scattering and diffuse scattering degenerate the contrast in radiographic images. To avoid such scattering effects, a grid, between the patient and the film is currently used to improve the image quality. Teaching this topic to medical physics students requires demonstration experiments. In this paper, an optical analog to an x-ray…

  13. Developing a magnetic resonance imaging scoring system for peripheral psoriatic arthritis

    DEFF Research Database (Denmark)

    McQueen, Fiona; Lassere, Marissa; Bird, Paul

    2007-01-01

    We describe the first steps in developing an OMERACT magnetic resonance imaging (MRI) scoring system for peripheral psoriatic arthritis (PsA). A preexisting MRI dataset (finger joints) from 10 patients with PsA was scored by 4 readers for bone erosion, bone edema, synovitis, tendinopathy...

  14. The Koppitz Developmental Scoring System for the Bender-Gestalt: Is It Developmental?

    Science.gov (United States)

    Taylor, Ronald L.; And Others

    1984-01-01

    Investigated the developmental aspects of the Koppitz scoring system with 652 children who took the Bender Motor Gestalt Test. Scores were fitted to various developmental curves by computer. Results indicated only 35 percent of the Bender test performance variance was accounted for by age. (JAC)

  15. The Validity of Preservice Teacher Use of Kohlberg's Issue Stage Scoring System

    Science.gov (United States)

    Napier, John D.

    1978-01-01

    Social studies preservice teachers received background information on Kohlberg's theory of moral development and were trained to use one of the rater guides in his new "issue stage scoring system." They were directed to score sample moral thought statements, some on an intuitive basis and some with the rater guides. No overall differences between…

  16. Simplified Therapeutic Intervention Scoring System : The TISS-28 items - Results from a multicenter study

    NARCIS (Netherlands)

    Miranda, DR; deRijk, A; Schaufeli, W

    Objectives: To validate a simplified version of the Therapeutic Intervention Scoring System, the TISS-28, and to determine the association of TISS-28 with the time spent on scored and nonscored nursing activities. Design: Prospective, multicenter study. Setting: Twenty-two adult medical, surgical,

  17. 76 FR 10050 - Changes to the Public Housing Assessment System (PHAS): Management Operations Scoring Notice

    Science.gov (United States)

    2011-02-23

    ... URBAN DEVELOPMENT Changes to the Public Housing Assessment System (PHAS): Management Operations Scoring... of the public about HUD's process for issuing scores under the management operations indicator of the... process for the PHAS management operations indicator. The purpose of the management operations...

  18. External validation of a clinical scoring system for the risk of gestational diabetes mellitus

    NARCIS (Netherlands)

    van Leeuwen, M.; Opmeer, B. C.; Zweers, E. J. K.; van Ballegooie, E.; ter Brugge, H. G.; de Valk, H. W.; Visser, G. H. A.; Mol, B. W. J.

    2009-01-01

    Aim: A prediction rule for gestational diabetes mellitus (GDM) could be helpful in early detection and increased efficiency of screening. A prediction rule by means of a clinical scoring system is available, but has never been validated externally. The aim of this study was to validate the scoring s

  19. 77 FR 47707 - Public Housing Assessment System (PHAS): Physical Condition Scoring Notice and Revised Dictionary...

    Science.gov (United States)

    2012-08-09

    ...): Physical Condition Scoring Notice and Revised Dictionary of Deficiency Definitions; Notice #0;#0;Federal... DEVELOPMENT Public Housing Assessment System (PHAS): Physical Condition Scoring Notice and Revised Dictionary... February 23, 2011. In addition, this notice makes changes to the Dictionary of Deficiency...

  20. Radiographic arthrosis after elbow trauma: interobserver reliability.

    NARCIS (Netherlands)

    Lindenhovius, A.; Karanicolas, P.J.; Bhandari, M.; Ring, D.; Kampen, A. van

    2012-01-01

    PURPOSE: This study measured observer variation in radiographic rating of elbow arthrosis. METHODS: Thirty-seven independent orthopedic surgeons graded the extent of elbow arthrosis in 20 consecutive sets of plain radiographs, according to the Broberg and Morrey rating system (grade 0, normal joint;

  1. The OMERACT psoriatic arthritis magnetic resonance imaging scoring system (PsAMRIS): definitions of key pathologies, suggested MRI sequences, and preliminary scoring system for PsA Hands

    DEFF Research Database (Denmark)

    Østergaard, Mikkel; McQueen, Fiona; Wiell, Charlotte

    2009-01-01

    This article describes a preliminary OMERACT psoriatic arthritis magnetic resonance image scoring system (PsAMRIS) for evaluation of inflammatory and destructive changes in PsA hands, which was developed by the international OMERACT MRI in inflammatory arthritis group. MRI definitions of important...

  2. An Evidenced Based Scoring System To Determine The Periodontal Prognosis On Molars

    Science.gov (United States)

    Miller, Preston D.; McEntire, Mark L.; Marlow, Nicole M.; Gellin, Robert G.

    2014-01-01

    Background This retrospective study evaluated and assigned scores to six prognostic factors and derived a quantitative scoring system used to determine the periodontal prognosis on molar teeth. Methods Data were gathered on 816 molars in 102 patients with moderate to severe periodontitis. The six factors evaluated, age, probing depth, mobility, furcation involvement, smoking, and molar type, were assigned a numerical score based on statistical analysis. The sum of the scores for all factors was used to determine the prognosis score for each molar. Only patients with all first and second molars at the initial examination qualified for the study. All patients were a minimum of 15 years post treatment. Results The post treatment time ranged from 15 to 40 years and averaged 24 years. When the study was completed, 639 molars survived (78%), and of those surviving molars, 566 survived in health (89%). In molars with lower scores (1,2,and 3) the 15-year survival rates ranged from 99% to 96%. For scores 4, 5, 6 the 15 year survival rates ranged was 95% to 90% and for molars with scores of 7, 8, 9, and 10 the survival rates ranged from 86% to 67%. Conclusions Our results indicate that the periodontal prognosis on molars diagnosed with moderate to severe periodontitis can be calculated using an evidence-based scoring system. PMID:23725028

  3. Scoring System Approach for Assessment of Critical Illness using Mobile Phones

    Directory of Open Access Journals (Sweden)

    Karupothula Madhavi Latha

    2012-02-01

    Full Text Available This paper demonstrates the use of mobile phones in assessing the illness of patients by developing a Scoring Systemwhere medical practitioners (often nurses collect various physiological signals like ECG, EEG, SpO2, temperature, continuous blood pressure and subjective parameters like level of pain, level of alertness, awareness, behavioral responses etc. After taking the data, a scoring system is utilized for early detection of critical illnesses. The mechanism of scoring is performed either manually, where the medical practitioner ticks on to a scoring board or is automated by relocating the information from scoring board to a PC, where the software performs the scoring calculation. In the proposed system, the medical practitioner inputs the parameters directly on to their mobile phone by collecting the parameters fromthe patient. The score is automatically calculated by miniature java based software running inside themobile phone. Based on the score, level of urgency is determined by the intelligent program. At the end, specialists are contacted automatically by messaging services. Moreover, the results of the scoring are transmitted to the hospital server. Therefore, assistance from civilians with mobile phone based medical intelligence can save precious life.

  4. Evaluating observer agreement of scoring systems for foot integrity and footrot lesions in sheep

    Directory of Open Access Journals (Sweden)

    Foddai Alessandro

    2012-05-01

    be used when developing a scoring system to improve reliability.

  5. Scoring Systems for Outcome Prediction in a Cardiac Surgical Intensive Care Unit: A Comparative Study.

    Science.gov (United States)

    Exarchopoulos, Themistocles; Charitidou, Efstratia; Dedeilias, Panagiotis; Charitos, Christos; Routsi, Christina

    2015-07-01

    Most scoring systems used to predict clinical outcome in critical care were not designed for application in cardiac surgery patients. To compare the predictive ability of the most widely used scoring systems (Acute Physiology and Chronic Health Evaluation [APACHE] II, Simplified Acute Physiology Score [SAPS] II, and Sequential Organ Failure Assessment [SOFA]) and of 2 specialized systems (European System for Cardiac Operative Risk Evaluation [EuroSCORE] II and the cardiac surgery score [CASUS]) for clinical outcome in patients after cardiac surgery. Consecutive patients admitted to a cardiac surgical intensive care unit (CSICU) were prospectively studied. Data on the preoperative condition, intraoperative parameters, and postoperative course were collected. EuroSCORE II, CASUS, and scores from 3 general severity-scoring systems (APACHE II, SAPS II, and SOFA) were calculated on the first postoperative day. Clinical outcome was defined as 30-day mortality and in-hospital morbidity. A total of 150 patients were included. Thirty-day mortality was 6%. CASUS was superior in outcome prediction, both in relation to discrimination (area under curve, 0.89) and calibration (Brier score = 0.043, χ(2) = 2.2, P = .89), followed by EuroSCORE II for 30-day mortality (area under curve, 0.87) and SOFA for morbidity (Spearman ρ= 0.37 and 0.35 for the CSICU length of stay and duration of mechanical ventilation, respectively; Wilcoxon W = 367.5, P = .03 for probability of readmission to CSICU). CASUS can be recommended as the most reliable and beneficial option for benchmarking and risk stratification in cardiac surgery patients. ©2015 American Association of Critical-Care Nurses.

  6. Interobserver variability in Pirani clubfoot severity scoring system between the orthopedic surgeons

    Directory of Open Access Journals (Sweden)

    Saurabh Jain

    2017-01-01

    Full Text Available Background: Congenital talipes equinovarus (clubfoot is one of the most common congenital pediatric orthopedic foot deformity, which varies in severity and clinical course. Assessment of severity of the club foot deformity is essential to assess the initial severity of deformity, to monitor the progress of treatment, to prognosticate, and to identify early relapse. Pirani′s scoring system is most acceptable and popular for club foot deformity assessment because it is simple, quick, cost effective, and easy. Since the scoring system is subjective in nature it has inter- and intra-observer variability, it is widely used. Hence, the interobserver variability between orthopedic surgeons in assessing the club foot severity by Pirani scoring system. Materials and Methods: We assessed the interobserver variability between five orthopedic surgeons of comparable skills, in assessing the club foot severity by Pirani scoring system in 80 feet of 60 children (20 bilateral and 40 unilateral with club foot deformity. All the five different orthopedic surgeons were familiar with Pirani clubfoot severity scoring and Ponseti cast manipulation, as they had already worked in CTEV clinics for at least 2 months. Each of them independently scored, each foot as per the Pirani clubfoot scoring system and recorded total score (TS, Midfoot score (MFS, Hind foot score (HFS, posterior crease (PC, emptiness of heel (EH, rigidity of equnius (RE, medial crease (MC, curvature of lateral border (CLB, and lateral head of talus (LHT. Interobserver variability was calculated using kappa statistic for each of these signs and was judged as poor (0.00-0.20, fair (0.21-0.40, moderate (0.41-0.60, substantial (0.61-0.80, or almost perfect (0.81-1.00. Results: The mean age was 137 days (range 21-335 days. The mean Pirani score was 3.86. We found the overall consistency to be substantial for overall score (total score kappa - 0.71 and also for midfoot (0.68 and hindfoot (0.66 separately

  7. Reliability of a scoring system used for qualitative evaluation of lymphoscintigraphic imaging of lower extremities.

    Science.gov (United States)

    Ebrahim, Mojgan; Savitcheva, Irina; Axelsson, Rimma

    2017-05-04

    Introduction: Lymphoscintigraphy is an imaging technique to diagnose and characterize the severity of edema in upper and lower extremities. In lymphoscintigraphy a scoring system can increase ability of diagnostic differentiation but the use of any scoring system requires sufficient reliability. To determine inter- and intraobserver reliability of a proposed scoring system used for visual interpretation of lymphoscintigraphic imaging of lower extremities. Materials and Methods: Lymphoscintigrams in 81 persons were randomly selected from our database for retrospective evaluation. These scans were assessed according to the criteria of a scoring system by two nuclear medicine physicians at two different time-points with a three month interval. The scoring system included 8 criteria for visual interpretation of lymphoscintigraphy imaging of lower extremities. The total score was the sum of all evaluating criteria with a potential range from 0 (normal lymphatic drainage) to 58 (severe lymphatic impairment). It was used the Wilcoxon signed-rank test, percentage of agreement, weighted kappa and Intraclass Correlation Coefficient (ICC) with 95% confidence intervals for investigation of the intra- and interobserver reliabilities of the scoring system. It was also categorized the differences of the total scores in 7 different categories for graphic comparison between/within the raters. Results: It was found some differences of the ratings between the raters, which were not statistically substantial. There were high or very high percentages of agreement between the raters from 82.7% to 99.4% and within the raters from 84.6% to 99.4%. It was found moderate to very good kappa correlations of inter- or intraobserver reliability of each sign of the scoring system. The total scores obtained from all signs had good inter- and intraobserver reliability. Regarding the comparison between the raters 66% and 64% of differences of the total scores are within plus/minus one scale point[-1

  8. Therapeutic intervention scoring system-28 (TISS-28: diretrizes para aplicação Therapeutic intervention scoring system-28 (tiss-28: directrices para su aplicación Therapeutic intervention scoring system-28 (tiss-28: directions for application

    Directory of Open Access Journals (Sweden)

    Katia Grillo Padilha

    2005-06-01

    Full Text Available O Therapeutic Intervention Scoring System-28 (TISS-28 é um instrumento que permite dimensionar carga de trabalho de enfermagem em Unidade de Terapia Intensiva e estimar gravidade da doença. Apresenta-se nesta publicação as definições operacionais para sua aplicação, proposta por um grupo de especialistas na área, com vistas a uniformizar o significado de cada um dos itens e evitar vieses de interpretação.El Therapeutic Intervention Scoring System-28 (TISS-28 es un instrumento que permite dimensionar carga de trabajo de enfermería en una Unidad de Terapia Intensiva y estimar la gravedad de la enfermedad. Se presenta en esta publicación las definiciones operacionales para su aplicación, propuesta por un grupo de especialistas en el área, con vistas a uniformizar el significado de cada uno de los items y evitar sesgos de interpretación.Therapeutic Intervention Scoring System-28 (TISS-28 is a tool that enables the measurement of the nursing work load in Intensive Care Units and the estimate of how grave the disease is. In this study are presented the operational definitions for its application, proposed by a group of specialists in the area, with the aim of rendering uniform the meaning of each of the items and preventing interpretation biases.

  9. Commercial Building Energy Asset Score System: Program Overview and Technical Protocol (Version 1.0)

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Na; Gorrissen, Willy J.

    2013-01-11

    The U.S. Department of Energy (DOE) is developing a national voluntary energy asset score system that includes an energy asset score tool to help building owners evaluate their buildings with respect to the score system. The goal of the energy asset score system is to facilitate cost-effective investment in energy efficiency improvements of commercial buildings. The system will allow building owners and managers to compare their building infrastructure against peers and track building upgrade progress over time. The system can also help other building stakeholders (e.g., building operators, tenants, financiers, and appraisers) understand the relative efficiency of different buildings in a way that is independent from their operations and occupancy. This report outlines the technical protocol used to generate the energy asset score, explains the scoring methodology, and provides additional details regarding the energy asset score tool. This report also describes alternative methods that were considered prior to developing the current approach. Finally, this report describes a few features of the program where alternative approaches are still under evaluation.

  10. Evaluation of histological scoring systems for tissue-engineered, repaired and osteoarthritic cartilage

    NARCIS (Netherlands)

    Rutgers, M.; van Pelt, M.J.; Dhert, W.J.A.; Creemers, L.B.; Saris, D.B.F.

    2010-01-01

    Osteoarthritis and Cartilage Volume 18, Issue 1, January 2010, Pages 12-23 -------------------------------------------------------------------------------- Review Evaluation of histological scoring systems for tissue-engineered, repaired and osteoarthritic cartilage M. Rutgers†, M.J.P. van Pelt†, W.

  11. Evaluation of histological scoring systems for tissue-engineered, repaired and osteoarthritic cartilage

    NARCIS (Netherlands)

    Rutgers, M.; van Pelt, M.J.; Dhert, W.J.A.; Creemers, L.B.; Saris, D.B.F.

    2010-01-01

    Osteoarthritis and Cartilage Volume 18, Issue 1, January 2010, Pages 12-23 -------------------------------------------------------------------------------- Review Evaluation of histological scoring systems for tissue-engineered, repaired and osteoarthritic cartilage M. Rutgers†, M.J.P. van Pelt†,

  12. The development of a preliminary ultrasonographic scoring system for features of hand osteoarthritis.

    LENUS (Irish Health Repository)

    Keen, H I

    2008-05-01

    Painful osteoarthritis (OA) of the hand is common and a validated ultrasound (US) scoring system would be valuable for epidemiological and therapeutic outcome studies. US is increasingly used to assess peripheral joints, though most of the US focus in rheumatic diseases has been on rheumatoid arthritis. We aimed to develop a preliminary US hand OA scoring system, initially focusing on relevant pathological features with potentially high reliability.

  13. A comparison of three scoring systems for predicting complications after major lung resection.

    Science.gov (United States)

    Ferguson, Mark K; Durkin, Amy E

    2003-01-01

    Although complications occur frequently after major lung resection, current predictive models are not entirely satisfactory. We devised a new predictive scoring system and compared it to two existing systems. We performed an initial retrospective review of 400 patients who underwent major resection for lung cancer from 1980 to 1995. Predictive covariates (age, spirometry, diffusing capacity) associated with three or more complication groups were used to develop a scoring system. This system (EVAD) was then evaluated against the Physiological and Operative Severity Score for Enumeration of Mortality and Morbidity (POSSUM) and Cardiopulmonary Risk Index (CPRI) systems for patients operated between 1996 and 2001. Major resection for lung cancer included lobectomy (188) and pneumonectomy (30). Complication categories were: pulmonary (23; 10.5%); cardiovascular (24; 11.0%); infectious (8; 3.6%); other (29; 13.2%); nonfatal (45; 20.6%); and any (53; 24.2%). Death occurred in ten patients (4.6%). Mean EVAD scores were significantly different between groups with and without complications in all categories except infectious complications and death, whereas mean CPRI scores differed only for pulmonary complications, nonfatal complications, and death, and mean POSSUM scores did not appropriately differ for any complications. EVAD predicted incremental risk in all complication categories except cardiovascular, infectious, and death, whereas CPRI predicted incremental risk only for nonfatal and possibly any complications, and POSSUM did not predict incremental risk for any complication category. Receiver operating characteristic analysis demonstrated the EVAD system to be equivalent to or better than CPRI and POSSUM for all complication categories. A simple scoring system (EVAD) that utilizes pulmonary function test data and patient age predicts the likelihood of complications after major lung resection. It is easier to use and at least as accurate as other scoring systems

  14. Use of scoring systems for assessing and reporting the outcome results from shoulder surgery and arthroplasty

    OpenAIRE

    Booker, Simon; Alfahad, Nawaf; Scott, Martin; Gooding, Ben; Wallace, W. Angus

    2015-01-01

    To investigate shoulder scoring systems used in Europe and North America and how outcomes might be classified after shoulder joint replacement. All research papers published in four major journals in 2012 and 2013 were reviewed for the shoulder scoring systems used in their published papers. A method of identifying how outcomes after shoulder arthroplasty might be used to categorize patients into fair, good, very good and excellent outcomes was explored using the outcome evaluations from pati...

  15. Validation of the computed assessment of cleansing score with the Mirocam® system

    Directory of Open Access Journals (Sweden)

    Ana Ponte

    Full Text Available Background and aims: A computed assessment of cleansing (CAC score was developed to objectively evaluate small-bowel cleansing in the PillCam capsule endoscopy (CE system and to overcome the subjectivity and complexity of previous scoring systems. Our study aimed to adapt the CAC score to the Mirocam® system, evaluate its reliability with the Mirocam® CE system and compare it with three validated subjective grading scales. Patients and methods: Thirty CE were prospectively and independently reviewed by two authors who classified the degree of small-bowel cleanliness according to a quantitative index, a qualitative evaluation and an overall adequacy assessment. The authors were blinded for the CAC score of each CE, which was calculated as ([mean intensity of the red channel]/[mean intensity of the green channel] - 1 x 10. The mean intensities of the red and green channels of the small-bowel segment of the "Map View" bar in the Miroview Client® were determined using the histogram option of two photo-editing software. Results: There was a strong agreement between both CE readers for each of the three subjective scales used. The reproducibility of the CAC score was excellent and identical results were obtained with the two photo-editing software. Regarding the comparison between the CAC score and the subjective scales, there was a moderate-to-good agreement with the quantitative index, qualitative evaluation and overall adequacy assessment. Conclusions: CAC score represents an objective and feasible score in the assessment of small-bowel cleansing in the Mirocam® CE system, and could be used per se or as part of a more comprehensive score.

  16. Assessment of an implant-skin interface scoring system for external skeletal fixation of dogs.

    Science.gov (United States)

    McDonald-Lynch, Mischa B; Marcellin-Little, Denis J; Roe, Simon C; Lascelles, B Duncan X; Trumpatori, Brian J; Griffith, Emily H

    2015-11-01

    OBJECTIVE To assess intraobserver repeatability and interobserver and in vivo versus photographic agreement of a scoring system for the implant-skin interface (ISI) of external skeletal fixation (ESF). SAMPLE 42 photographs of ISIs from 18 dogs for interobserver agreement and intraobserver repeatability and 27 photographs of ISIs from 6 dogs for in vivo versus photograph agreement. PROCEDURES An ISI inflammation scoring system was developed. It included scales for 6 metrics (erythema, drainage amount, drainage type, swelling, hair loss or lack of hair regrowth, and granulation tissue). Photographs of the ISI of ESF were obtained by use of a standard protocol and evaluated to determine intraobserver repeatability and interobserver agreement (Cronbach α; 4 raters) of the ISI score. Agreement between in vivo and photographic ISI scores (2 raters) and correlation between median scores across metrics were evaluated. RESULTS 42 photographs met the inclusion criteria. Overall intraclass correlation coefficients ranged from 0.922 to 0.975. Interobserver overall Cronbach α ranged from 0.835 to 0.943. For in vivo versus photographic assessment, 27 ISIs in 6 dogs and their photographs were evaluated. The Cronbach α for both raters ranged from 0.614 to 0.938. Overall, the Cronbach α ranged from 0.725 to 0.932. Mean photographic scores were greater than mean in vivo scores for each metric. Pearson correlation coefficients ranged from 0.221 to 0.923. Erythema, swelling, and granulation were correlated with all other metrics. CONCLUSIONS AND CLINICAL RELEVANCE In this study, an ISI scoring system used in this study had high repeatability and agreement and may therefore be considered for use in clinical situations. Photographic scores were not equivalent to in vivo scores and should not be used interchangeably.

  17. Beyond the SYNTAX score--advantages and limitations of other risk assessment systems in left main percutaneous coronary intervention.

    Science.gov (United States)

    Capodanno, Davide

    2013-01-01

    Risk stratification is an emerging topic in the modern management of patients with left main disease referred for percutaneous coronary intervention (PCI). Recent years have witnessed an explosive multiplication of risk models for prognostic stratification in complex PCI. Many of this models deal with modification of the angiographic SYNTAX score, or seek to overcome its known pitfalls and limitations, including lack of clinical and functional information, inter- and intra-observer variabilities, and poor calibration. Risk scoring systems beyond the SYNTAX score may be classified into angiographic (residual SYNTAX score, coronary artery bypass grafting SYNTAX score), clinical (EuroSCORE I and II, ACEF score and modified ACEF scores), combined clinical and angiographic (Global Risk Classification, Clinical SYNTAX score, logistic Clinical SYNTAX score, SYNTAX score II) and functional (Functional SYNTAX score). This article reviews current concepts in risk modeling and explores the advantages and limitations of the alternatives to the SYNTAX score in patients undergoing left main PCI. 

  18. Assessment of the EuroSCORE risk scoring system for patients undergoing coronary artery bypass graft surgery in a group of Iranian patients

    Directory of Open Access Journals (Sweden)

    Hamidreza Jamaati

    2015-01-01

    Full Text Available Background and Aims: Previous studies around the world indicated validity and accuracy of European System for Cardiac Operative Risk Evaluation (EuroSCORE risk scoring system we evaluated the EuroSCORE risk scoring system for patients undergoing coronary artery bypass graft (CABG surgery in a group of Iranian patients. Materials and Methods: In this cohort 2220 patients more than 18 years, who were performed CABG surgery in Massih Daneshvari Hospital, from January 2004 to March 2010 were recruited. Predicted mortality risk scores were calculated using logistic EuroSCORE and Acute Physiology and Chronic Health Evaluation II (APACHE II and compared with observed mortality. Calibration was measured by the Hosmer-Lemeshow (HL test and discrimination by using the receiver operating characteristic (ROC curve area. Results: Of the 2220 patients, in hospital deaths occurred in 270 patients (mortality rate of 12.2%. The accuracy of mortality prediction in the logistic EuroSCORE and APACHE II model was 89.1%; in the local EuroSCORE (logistic was 91.89%; and in the local EuroSCORE support vector machines (SVM was 98.6%. The area under curve for ROC curve, was 0.724 (95% confidence interval [CI]: 0.57-0.88 for logistic EuroSCORE; 0.836 (95% CI: 0.731-0.942 for local EuroSCORE (logistic; 0.978 (95% CI: 0.937-1 for Local EuroSCORE (SVM; and 0.832 (95% CI: 0.723-0.941 for APACHE II model. The HL test showed good calibration for the local EuroSCORE (SVM, APACHE II model and local EuroSCORE (logistic (P = 0.823, P = 0.748 and P = 0.06 respectively; but there was a significant difference between expected and observed mortality according to EuroSCORE model (P = 0.033. Conclusion: We detected logistic EuroSCORE risk model is not applicable on Iranian patients undergoing CABG surgery.

  19. The Bender-Gestalt with adolescents: comparison of two scoring systems.

    Science.gov (United States)

    McIntosh, J A; Belter, R W; Saylor, C F; Finch, A J; Edwards, G L

    1988-03-01

    The present study was designed to evaluate the relative efficacy of two different scoring systems (Koppitz, 1975; Lacks, 1984) for use in evaluating Bender-Gestalt performance by adolescents. Normative data are presented for the two scoring systems with a sample of "normal" controls (N = 150), emotionally disturbed (N = 140), and mentally retarded/neurologically impaired adolescents (N = 47), aged 12-17. Results suggested that age and psychopathology were not related to the quality of the Bender-Gestalt reproductions of these subjects. An inverse relationship was found between cognitive ability and visual motor skills. Data obtained from these samples of adolescents showed a high degree of consistency between the scoring systems, which suggests that either scoring procedure is suitable for evaluating the Bender-Gestalt performance of adolescents.

  20. Can We Do Better in Unimodal Biometric Systems? A Rank-Based Score Normalization Framework.

    Science.gov (United States)

    Moutafis, Panagiotis; Kakadiaris, Ioannis A

    2015-12-01

    Biometric systems use score normalization techniques and fusion rules to improve recognition performance. The large amount of research on score fusion for multimodal systems raises an important question: can we utilize the available information from unimodal systems more effectively? In this paper, we present a rank-based score normalization framework that addresses this problem. Specifically, our approach consists of three algorithms: 1) partition the matching scores into subsets and normalize each subset independently; 2) utilize the gallery versus gallery matching scores matrix (i.e., gallery-based information); and 3) dynamically augment the gallery in an online fashion. We invoke the theory of stochastic dominance along with results of prior research to demonstrate when and why our approach yields increased performance. Our framework: 1) can be used in conjunction with any score normalization technique and any fusion rule; 2) is amenable to parallel programming; and 3) is suitable for both verification and open-set identification. To assess the performance of our framework, we use the UHDB11 and FRGC v2 face datasets. Specifically, the statistical hypothesis tests performed illustrate that the performance of our framework improves as we increase the number of samples per subject. Furthermore, the corresponding statistical analysis demonstrates that increased separation between match and nonmatch scores is obtained for each probe. Besides the benefits and limitations highlighted by our experimental evaluation, results under optimal and pessimal conditions are also presented to offer better insights.

  1. Analysis of WHO-Based Prognostic Scoring System (WPSS) of Myelodysplastic Syndrome and Its Comparison with International Prognostic Scoring System (IPSS) in 100 Chinese Patients

    Institute of Scientific and Technical Information of China (English)

    Jia Wei; Xiao-fen Zhou; Jian-feng Zhou; Yan Chen

    2009-01-01

    Objective: The aims of this study were to assess the prognostic significance of WHO-based Prognostic Scoring System (WPSS) in myelodysplastic syndrome (MDS) from a single center institute and to compare WPSS with the international prognostic scoring system (IPSS).Methods: A total of 100 cases with de novo MDS were reviewed and their karyotypes were detected. All of them were followed up and classified according to IPSS and WPSS risk groups. SPSS 13.0 software was applied to deal with all the data. The statistical methods included Kaplan - Meier, Log-rank test and cox regression.Results: Multivariate cox regression analysis indicated that WHO Classification (P=0.0190), karyotype abnormalities categorized according to IPSS (P=0.0159) and red blood cell (RBC) transfusion (P=0.0009) were the three most important independent factors for predicting overall survival (OS) of MDS. WPSS and IPSS both had great capacity in predicting the OS of MDS at the time of diagnosis (P<0.0001). In time-dependent analysis, WPSS can predict the OS accurately in the following three years after diagnosis (P<0.0001), while IPSS failed to predict the OS 24 months after diagnosis (P=0.1094).Conclusion: Our single center results proved that WPSS is a dynamic prognostic system which can predict the OS of MDS patients at any time during the course of their disease. This time-dependent prognostic scoring system may replace the IPSS in the near future.

  2. Information System Of Student Score SMA Negeri 1 Tegal Based On Short Message Service (SMS Gateway

    Directory of Open Access Journals (Sweden)

    Zaenul Arif

    2016-06-01

    Full Text Available Student Score at the agency school is one measure of the success of students in learning the material presented. In the old system the parents have not been getting the value directly from the school except at the end of each semester, making them difficult to know the value of their children's development during school. To provide score transparency to students and parents needed an information system score subjects in an easy and fast data access. By identifying the problem is analyzing the old system to identify the weaknesses of the system. Thus the new system will increase. Analysis of the weakness of the old system using PIECES categories (Performance, Information, Economy, Control, Eficiency, and Service. In fulfilling these conditions, build up lesson student score information system of Short Message Service (SMS Gateway Based. The system is built using Gammu software and using the programming language PHP. By using SMS to obtain the score of the data is expected to provide convenience for parents to monitor learning outcomes of their children’s in school.

  3. MRI assessment of knee osteoarthritis: Knee Osteoarthritis Scoring System (KOSS) - inter-observer and intra-observer reproducibility of a compartment-based scoring system

    Energy Technology Data Exchange (ETDEWEB)

    Kornaat, Peter R.; Ceulemans, Ruth Y.T.; Kroon, Herman M.; Bloem, Johan L. [Leiden University Medical Center, Department of Radiology, Leiden (Netherlands); Riyazi, Naghmeh; Kloppenburg, Margreet [Leiden University Medical Center, Department of Rheumatology, Leiden (Netherlands); Carter, Wayne O.; Woodworth, Thasia G. [Pfizer Groton, Groton, Connecticut (United States)

    2005-02-01

    To develop a scoring system for quantifying osteoarthritic changes of the knee as identified by magnetic resonance (MR) imaging, and to determine its inter- and intra-observer reproducibility, in order to monitor medical therapy in research studies. Two independent observers evaluated 25 consecutive MR examinations of the knee in patients with previously defined clinical symptoms and radiological signs of osteoarthritis. We acquired on a 1.5 T system: coronal and sagittal proton density- and T2-weighted dual spin echo (SE) images, sagittal three-dimensional T1-weighted gradient echo (GE) images with fat suppression, and axial dual turbo SE images with fat suppression. Images were scored for the presence of cartilaginous lesions, osteophytes, subchondral cysts, bone marrow edema, and for meniscal abnormalities. Presence and size of effusion, synovitis and Baker's cyst were recorded. All parameters were ranked on a previously defined, semiquantitative scale, reflecting increasing severity of findings. Kappa, weighted kappa and intraclass correlation coefficient (ICC) were used to determine inter- and intra-observer variability. Inter-observer reproducibility was good (ICC value 0.77). Inter- and intra-observer reproducibility for individual parameters was good to very good (inter-observer ICC value 0.63-0.91; intra-observer ICC value 0.76-0.96). The presented comprehensive MR scoring system for osteoarthritic changes of the knee has a good to very good inter-observer and intra-observer reproducibility. Thus the score form with its definitions can be used for standardized assessment of osteoarthritic changes to monitor medical therapy in research studies. (orig.)

  4. An automated dental caries detection and scoring system for optical images of tooth occlusal surface.

    Science.gov (United States)

    Ghaedi, Leila; Gottlieb, Riki; Sarrett, David C; Ismail, Amid; Belle, Ashwin; Najarian, Kayvan; Hargraves, Rosalyn Hobson

    2014-01-01

    Dental caries are one of the most prevalent chronic diseases. The management of dental caries demands detection of carious lesions at early stages. This study aims to design an automated system to detect and score caries lesions based on optical images of the occlusal tooth surface according to the International Caries Detection and Assessment System (ICDAS) guidelines. The system detects the tooth boundaries and irregular regions, and extracts 77 features from each image. These features include statistical measures of color space, grayscale image, as well as Wavelet Transform and Fourier Transform based features. Used in this study were 88 occlusal surface photographs of extracted teeth examined and scored by ICDAS experts. Seven ICDAS codes which show the different stages in caries development were collapsed into three classes: score 0, scores 1 and 2, and scores 3 to 6. The system shows accuracy of 86.3%, specificity of 91.7%, and sensitivity of 83.0% in ten-fold cross validation in classification of the tooth images. While the system needs further improvement and validation using larger datasets, it presents promising potential for clinical diagnostics with high accuracy and minimal cost. This is a notable advantage over existing systems requiring expensive imaging and external hardware.

  5. Regression coefficient-based scoring system should be used to assign weights to the risk index.

    Science.gov (United States)

    Mehta, Hemalkumar B; Mehta, Vinay; Girman, Cynthia J; Adhikari, Deepak; Johnson, Michael L

    2016-11-01

    Some previously developed risk scores contained a mathematical error in their construction: risk ratios were added to derive weights to construct a summary risk score. This study demonstrates the mathematical error and derived different versions of the Charlson comorbidity score (CCS) using regression coefficient-based and risk ratio-based scoring systems to further demonstrate the effects of incorrect weighting on performance in predicting mortality. This retrospective cohort study included elderly people from the Clinical Practice Research Datalink. Cox proportional hazards regression models were constructed for time to 1-year mortality. Weights were assigned to 17 comorbidities using regression coefficient-based and risk ratio-based scoring systems. Different versions of CCS were compared using Akaike information criteria (AIC), McFadden's adjusted R(2), and net reclassification improvement (NRI). Regression coefficient-based models (Beta, Beta10/integer, Beta/Schneeweiss, Beta/Sullivan) had lower AIC and higher R(2) compared to risk ratio-based models (HR/Charlson, HR/Johnson). Regression coefficient-based CCS reclassified more number of people into the correct strata (NRI range, 9.02-10.04) compared to risk ratio-based CCS (NRI range, 8.14-8.22). Previously developed risk scores contained an error in their construction adding ratios instead of multiplying them. Furthermore, as demonstrated here, adding ratios fail to even work adequately from a practical standpoint. CCS derived using regression coefficients performed slightly better than in fitting the data compared to risk ratio-based scoring systems. Researchers should use a regression coefficient-based scoring system to develop a risk index, which is theoretically correct. Copyright © 2016 Elsevier Inc. All rights reserved.

  6. Validation of a Simple Scoring System to Predict Sorafenib Effectiveness in Patients with Hepatocellular Carcinoma.

    Science.gov (United States)

    Di Costanzo, Giovan Giuseppe; Casadei Gardini, Andrea; Marisi, Giorgia; Foschi, Francesco Giuseppe; Scartozzi, Mario; Granata, Rocco; Faloppi, Luca; Cascinu, Stefano; Silvestris, Nicola; Brunetti, Oronzo; Palmieri, Vincenzo Ostilio; Ercolani, Giorgio; Tortora, Raffaella

    2017-08-03

    Sorafenib is recommended for the treatment of advanced-stage hepatocellular carcinoma (HCC). Nonetheless, it is expensive, effective in few patients, and may cause significant adverse effects. Therefore, accurate selection of patients is needed. In a previous study, we constructed a simple scoring system to predict patients' outcomes based on the occurrence of sorafenib adverse effects. The present study aimed to validate this scoring system in a real-life cohort of HCC patients. Clinical records of 279 outpatients treated with sorafenib in eight Italian centers were retrospectively analyzed. Adverse effects considered to calculate the score were skin toxicity, diarrhea, and arterial hypertension, occurring during the first month of therapy. For each adverse effect, 1 point was assigned if present; and 0 points if absent (resulting in a total score between 0 and 3). Median overall survival (OS) was 10.8 months and median time to progression (TTP) was 5.1 months. At multivariate analysis, performance status, α-fetoprotein (AFP), and Child-Pugh score were independently associated with TTP and OS. A progressive increase of OS and TTP was observed in patients with scores from 0 to 3 (p < 0.001). Six-, 12-, and 24-month survival probabilities were 55.1, 24.5, and 7.9% in score 0 patients, and 100, 80.9, and 46.2% in score 3 patients, respectively. Complete response was observed in one patient (0.4%), partial responses in 41 (15.2%), and stable disease in 117 (43.5%). The disease control rate in patients with scores of 0, 1, 2, and 3 was 34.3, 51.6, 80.9, and 96.3%, respectively (p < 0.001). Complete or partial responses were not observed in score 0 patients. We have validated a useful scoring system to predict outcomes in sorafenib-treated HCC patients. This score is easy to calculate and suitable for implementation in daily clinical practice.

  7. The Use of an Enhanced Polygraph Scoring Technique in Homeland Security: The Empirical Scoring System-Making a Difference

    Science.gov (United States)

    2012-03-01

    confidence rating (p value) (Macmillan, & Creelman , 1996). More specifically, as response bias relates to polygraph scoring, the development of the...Macmillan, N., & Creelman , C. (1996). Triangles in ROC space: History and theory of “nonparametric” measures of sensitivity and response bias

  8. 76 FR 10055 - Changes to the Public Housing Assessment System (PHAS): Physical Condition Scoring Notice

    Science.gov (United States)

    2011-02-23

    .... Therefore, the system will select 6 of the 12 previously unselected buildings during Phase 2 sampling. The... URBAN DEVELOPMENT Changes to the Public Housing Assessment System (PHAS): Physical Condition Scoring... Regulations Division, Office of General Counsel, Department of Housing and Urban Development, 451 7th Street...

  9. Plain film diagnosis in meconium plug syndrome, meconium ileus and neonatal Hirschsprung's disease - A scoring system

    NARCIS (Netherlands)

    S.M. Hussain (Shahid); M. Meradji (Morteza); S.G.F. Robben (Simon); W.C.J. Hop (Wim)

    1991-01-01

    textabstractAbdominal plain films of 133 neonates, with 82 cases of meconium plug syndrome (MPS), 27 cases of meconium ileus (MI) and 24 cases of neonatal Hirschsprung's disease (HD), were reviewed to assess the value of such radiographs for diagnosis. The radiographs were examined according to a li

  10. Computerized system to measure interproximal alveolar bone levels in epidemiologic, radiographic investigations. II. Intra- and inter-examinar variation study

    Energy Technology Data Exchange (ETDEWEB)

    Wouters, F.R.; Frithiof, L.; Soeder, P.Oe.; Hellden, L.; Lavstedt, S.; Salonen, L.

    1988-01-01

    The study was aimed at analyzing intra- and inter-examiner variations in computerized measurement and in non-measurability of alveolar bone level in a cross-sectional, epidemiologic material. At each interproximal tooth surface, alveolar bone height in percentage of root length (B/R) and tooth length (B/T) were determined twice by one examiner and once by a second examiner from X5-magnified periapical radiographs. The overall intra- and inter-examiner variations in measurement were 2.85% and 3.84% of root length and 1.97% and 2.82% of tooth length, respectively. The varations were different for different tooth groups and for different degrees of severity of marginal periodontitis. The overall proportions on non-measurable tooth surfaces varied with examiner from 32% to 39% and from 43% to 48% of the available interproximal tooth surfaces for B/R and B/T, respectively. With regard to the level of reliability, the computerized method reported is appropriate to cross-sectional, epidemiologic investigations from radiographs.

  11. New methods for using computer-aided detection information for the detection of lung nodules on chest radiographs

    NARCIS (Netherlands)

    Schalekamp, S.; Ginneken, B. van; Heggelman, B.; Imhof-Tas, M.W.; Somers, I.; Brink, M.; Spee, M.; Schaefer-Prokop, C.M.; Karssemeijer, N.

    2014-01-01

    Objective: To investigate two new methods of using computer-aided detection (CAD) system information for the detection of lung nodules on chest radiographs. We evaluated an interactive CAD application and an independent combination of radiologists and CAD scores. Methods: 300 posteroanterior and lat

  12. Cervical injuries scored according to the Subaxial Injury Classification system: An analysis of the literature

    Directory of Open Access Journals (Sweden)

    Andrei F Joaquim

    2014-01-01

    Full Text Available Introduction: The Subaxial Injury Classification (SLIC system and severity score has been developed to help surgeons in the decision-making process of treatment of subaxial cervical spine injuries. A detailed description of all potential scored injures of the SLIC is lacking. Materials and Methods: We performed a systematic review in the PubMed database from 2007 to 2014 to describe the relationship between the scored injuries in the SLIC and their eventual treatment according to the system score. Results: Patients with an SLIC of 1-3 points (conservative treatment are neurologically intact with the spinous process, laminar or small facet fractures. Patients with compression and burst fractures who are neurologically intact are also treated nonsurgically. Patients with an SLIC of 4 points may have an incomplete spinal cord injury such as a central cord syndrome, compression injuries with incomplete neurologic deficits and burst fractures with complete neurologic deficits. SLIC of 5-10 points includes distraction and rotational injuries, traumatic disc herniation in the setting of a neurological deficit and burst fractures with an incomplete neurologic deficit. Conclusion: The SLIC injury severity score can help surgeons guide fracture treatment. Knowledge of the potential scored injures and their relationships with the SLIC are of paramount importance for spine surgeons who treated subaxial cervical spine injuries.

  13. Determining utility values in patients with anterior cruciate ligament tears using clinical scoring systems

    Directory of Open Access Journals (Sweden)

    Szucs Thomas

    2011-08-01

    Full Text Available Abstract Background Several instruments and clinical scoring systems have been established to evaluate patients with ligamentous knee injuries. A comparison of individual articles in the literature is challenging, not only because of heterogeneity in methodology, but also due to the variety of the scoring systems used to document clinical outcomes. There is limited information about the correlation between used scores and quality of life with no information being available on the impact of each score on the utility values. The aim of this study was to compare the most commonly used scores for evaluating patients with anterior cruciate ligament (ACL injuries, and to establish corresponding utility values. These values will be used for the interpretation and comparison of outcome results in the currently available literature for different treatment options. Methods Four hypothetical vignettes were defined, based on different levels of activities after rupture of the ACL to simulate typical situations seen in daily practice. A questionnaire, including the Health Utility Index (HUI for utility values, the IKDC subjective score, the Lysholm and the Tegner score, was created and 25 orthopedic surgeons were asked to fill the questionnaire for each hypothetical patient as proxies for all patients they had treated and who would fit in that hypothetical vignette. Results The utility value as an indicator for quality of life increased with the level of activity. Having discomforts already during normal activities of daily living was rated with a mean utility value of 0.37 ± 0.19, half of that of a situation where mild sport activity was possible without discomfort (0.78 ± 0.11. All investigated scores were able to distinguish clearly (p Conclusions Here we report the correlation between the most commonly used scores for the assessment of patients with a ruptured ACL and utility values as an indicator of quality of life. Assumptions were based on expert

  14. A novel scoring system for evaluation of results of autologous transplantation methods in vitiligo

    Directory of Open Access Journals (Sweden)

    Gupta Somesh

    2002-01-01

    Full Text Available Autologous transplantation of melanocyte/melanocytes bearing epidermis for vitiligo can be done by mini-punch grafting (MPG, suction blister epidermal grafting (SBEG, thin split -thickness skin grafting (TSTG, transplantation of basal cell layer enriched suspension and cultured epithelial/melanocyte transplantation. To date no comparative study of these transplantation procedures has been published. Comparison of different studies carried out at different centers may be difficult in the absence of uniform evaluation criteria. In most of the published studies, the results were evaluated in terms of extent of pigmentation. Complictions and color match were evaluated separately. This approach, however, may not give a fair idea about the results. We have developed a scoring system with holistic approach considering the extent of pigmentation, color match and the complications of both the donor and the recipient areas, all taken together. In the scoring system, the score for individual criteria was multiplied with a factor, the value of which was decided on the basis of relative importance of each criteria. The use of this scoring system is exemplified in twelve patients who underwent TSTG, SBEG and MPG. In the scoring system the results were judged as excellent and fair in 3 patients each, as good in 4 patients and as poor in 2 patients.

  15. Using the Reputation Score Management for Constructing Fair P2P File Sharing System

    Directory of Open Access Journals (Sweden)

    Jun Han

    2013-06-01

    Full Text Available This paper has used the reputation score management for constructing a fair P2P file sharing system, the system design principle is simple and easy to realize, and every node entering into the P2P network obtains a certain reputation score, and obtains the corresponding resources reward according to the score. This paper has described the fair sharing strategies facing node network bandwidth and TTL, and these strategies can be used independently or be combined with other reputation score managements of P2P network. These two strategies have been discussed in the specific reputation score management system of P2P network Eigen Trust, and the test results indicate that: compared with a common P2P network, the fair sharing strategies of this paper have faster file download speed and can decrease the network message communication amount during the process looking for resources. It can also be combined with another reputation management system. it is simple and easy to be realized, its main purposes are to fairly share network bandwidth and to decrease information communication volume, and it can suppress the free riding behavior to some extent.

  16. [Results of applying a paediatric early warning score system as a healthcare quality improvement plan].

    Science.gov (United States)

    Rivero-Martín, M J; Prieto-Martínez, S; García-Solano, M; Montilla-Pérez, M; Tena-Martín, E; Ballesteros-García, M M

    2016-06-01

    The aims of this study were to introduce a paediatric early warning score (PEWS) into our daily clinical practice, as well as to evaluate its ability to detect clinical deterioration in children admitted, and to train nursing staff to communicate the information and response effectively. An analysis was performed on the implementation of PEWS in the electronic health records of children (0-15 years) in our paediatric ward from February 2014 to September 2014. The maximum score was 6. Nursing staff reviewed scores >2, and if >3 medical and nursing staff reviewed it. Monitoring indicators: % of admissions with scoring; % of complete data capture; % of scores >3; % of scores >3 reviewed by medical staff, % of changes in treatment due to the warning system, and number of patients who needed Paediatric Intensive Care Unit (PICU) admission, or died without an increased warning score. The data were collected from all patients (931) admitted. The scale was measured 7,917 times, with 78.8% of them with complete data capture. Very few (1.9%) showed scores >3, and 14% of them with changes in clinical management (intensifying treatment or new diagnostic tests). One patient (scored 2) required PICU admission. There were no deaths. Parents or nursing staff concern was registered in 80% of cases. PEWS are useful to provide a standardised assessment of clinical status in the inpatient setting, using a unique scale and implementing data capture. Because of the lack of severe complications requiring PICU admission and deaths, we will have to use other data to evaluate these scales. Copyright © 2016 SECA. Published by Elsevier Espana. All rights reserved.

  17. Risk scoring systems for adults admitted to the emergency department: a systematic review

    DEFF Research Database (Denmark)

    Brabrand, Mikkel; Folkestad, Lars; Clausen, Nicola G

    2010-01-01

    , on scoring systems developed to assess medical patients at admission. The primary endpoints were in-hospital mortality or transfer to the intensive care unit. Studies derived for only a single or few diagnoses were excluded. The ability to identify patients at risk (discriminatory power) and agreement......ABSTRACT: BACKGROUND: Patients referred to a medical admission unit (MAU) represent a broad spectrum of disease severity. In the interest of allocating resources to those who might potentially benefit most from clinical interventions, several scoring systems have been proposed as a triaging tool...... are perfect and all have their weaknesses. More research is needed before the use of scoring systems can be fully implemented to the risk assessment of acutely admitted medical patients....

  18. Hallux Rigidus Grade Does Not Correlate With Foot and Ankle Ability Measure Score.

    Science.gov (United States)

    Nixon, Devon C; Lorbeer, Karly F; McCormick, Jeremy J; Klein, Sandra E; Johnson, Jeffrey E

    2017-09-01

    Classification systems for hallux rigidus imply that, as radiographic changes progress, symptoms will concurrently increase in severity. However, symptom intensity and radiographic severity can be discordant for many patients. We studied the correlation between hallux rigidus grades and the Foot and Ankle Ability Measure (FAAM) scores to better understand this relationship. We retrospectively reviewed weight-bearing radiographs of the foot and FAAM Activities of Daily Living (ADL) questionnaires for 84 patients with hallux rigidus. The Spearman rank coefficient was used to correlate clinical-radiographic hallux rigidus grade with FAAM ADL scores. In 84 patients, the clinical-radiographic grade for hallux rigidus showed no relationship with FAAM ADL score (r = -0.10; P = 0.36) but did show moderate correlation with patient age (r = 0.63; P < 0.001). Advancing radiographic changes in hallux rigidus did not correspond with patient symptoms as measured via FAAM ADL scores. The reliability and validity of current grading criteria for hallux rigidus may require further exploration. Level III.

  19. Development and performance of a diagnostic/prognostic scoring system for breakthrough pain

    Directory of Open Access Journals (Sweden)

    Samolsky Dekel BG

    2017-05-01

    Full Text Available Boaz Gedaliahu Samolsky Dekel,1–3 Marco Palma,4 Maria Cristina Sorella,1–3 Alberto Gori,3 Alessio Vasarri,3 Rita Maria Melotti1–3 1Department of Medicine and Surgery Sciences, University of Bologna, 2Department of Emergency-Urgency, Bologna’s University Teaching Hospital, Policlinic S. Orsola-Malpighi, 3University of Bologna, Post Graduate School of Anaesthesia and Intensive Care, 4Collegio Superiore, Istituto di Studi Superiori – ISS, University of Bologna, Bologna, Italy Objectives: Variable prevalence and treatment of breakthrough pain (BTP in different clinical contexts are partially due to the lack of reliable/validated diagnostic tools with prognostic capability. We report the statistical basis and performance analysis of a novel BTP scoring system based on the naïve Bayes classifier (NBC approach and an 11-item IQ-BTP validated questionnaire. This system aims at classifying potential BTP presence in three likelihood classes: “High,” “Intermediate,” and “Low.”Methods: Out of a training set of n=120 mixed chronic pain patients, predictors associated with the BTP likelihood variables (Pearson’s χ2 and/or Fisher’s exact test were employed for the NBC planning. Adjusting the binary classification to a three–likelihood classes case enabled the building of a scoring algorithm and to retrieve the score of each predictor’s answer options and the Patient’s Global Score (PGS. The latter medians were used to establish the NBC thresholds, needed to evaluate the scoring system performance (leave-one-out cross-validation.Results: Medians of PGS in the “High,” “Intermediate,” and “Low” likelihood classes were 3.44, 1.53, and −2.84, respectively. Leading predictors for the model (based on score differences were flair frequency (∆S=1.31, duration (∆S=5.25, and predictability (∆S=1.17. Percentages of correct classification were 63.6% for the “High” and of 100.0% for either the “Intermediate” and

  20. A simple scoring system for breast MRI interpretation: does it compensate for reader experience?

    Science.gov (United States)

    Marino, Maria Adele; Clauser, Paola; Woitek, Ramona; Wengert, Georg J; Kapetas, Panagiotis; Bernathova, Maria; Pinker-Domenig, Katja; Helbich, Thomas H; Preidler, Klaus; Baltzer, Pascal A T

    2016-08-01

    To investigate the impact of a scoring system (Tree) on inter-reader agreement and diagnostic performance in breast MRI reading. This IRB-approved, single-centre study included 100 patients with 121 consecutive histopathologically verified lesions (52 malignant, 68 benign). Four breast radiologists with different levels of MRI experience and blinded to histopathology retrospectively evaluated all examinations. Readers independently applied two methods to classify breast lesions: BI-RADS and Tree. BI-RADS provides a reporting lexicon that is empirically translated into likelihoods of malignancy; Tree is a scoring system that results in a diagnostic category. Readings were compared by ROC analysis and kappa statistics. Inter-reader agreement was substantial to almost perfect (kappa: 0.643-0.896) for Tree and moderate (kappa: 0.455-0.657) for BI-RADS. Diagnostic performance using Tree (AUC: 0.889-0.943) was similar to BI-RADS (AUC: 0.872-0.953). Less experienced radiologists achieved AUC: improvements up to 4.7 % using Tree (P-values: 0.042-0.698); an expert's performance did not change (P = 0.526). The least experienced reader improved in specificity using Tree (16 %, P = 0.001). No further sensitivity and specificity differences were found (P > 0.1). The Tree scoring system improves inter-reader agreement and achieves a diagnostic performance similar to that of BI-RADS. Less experienced radiologists, in particular, benefit from Tree. • The Tree scoring system shows high diagnostic accuracy in mass and non-mass lesions. • The Tree scoring system reduces inter-reader variability related to reader experience. • The Tree scoring system improves diagnostic accuracy in non-expert readers.

  1. Mastitis, a Radiographic, Clinical, and Histopathologic Review.

    Science.gov (United States)

    Cheng, Lin; Reddy, Vijaya; Solmos, Gene; Watkins, Latanja; Cimbaluk, David; Bitterman, Pincas; Ghai, Ritu; Gattuso, Paolo

    2015-01-01

    Mastitis is a benign inflammatory process of the breast with heterogeneous histopathological findings, which clinically and radiographically may mimic a mammary carcinoma. We undertook a retrospective study on 37 cases of mastitis in our institution to correlate the radiographic imaging features and the clinical presentation with the histopathological findings. Histologically, there were 21 granulomatous, 7 fibrous, 3 plasma cell, 3 lupus, 2 lymphocytic, and 1 case of acute mastitis. Radiographically, 16/25 (64%) patients with ultrasound studies showed irregular hypoechoic masses suspicious for malignancy. Clinically, 38% of patients had an associated systemic disease. © 2015 Wiley Periodicals, Inc.

  2. Radiographic progression is associated with resolution of systemic inflammation in patients with axial spondylarthritis treated with tumor necrosis factor α inhibitors: A study of radiographic progression, inflammation on magnetic resonance imaging, and circulating biomarkers of inflammation

    DEFF Research Database (Denmark)

    Pedersen, Susanne Juhl; Sørensen, Inge Juul; Lambert, Robert G W;

    2011-01-01

    metalloproteinase 3 [MMP-3], and cartilage oligomeric matrix protein [COMP]), and bone turnover (CTX-I and osteocalcin) to inflammation on magnetic resonance imaging (MRI) and radiographic progression in patients with axial spondylarthritis (SpA) beginning tumor necrosis factor a (TNFa) inhibitor therapy....

  3. PyParse: a semiautomated system for scoring spoken recall data.

    Science.gov (United States)

    Solway, Alec; Geller, Aaron S; Sederberg, Per B; Kahana, Michael J

    2010-02-01

    Studies of human memory often generate data on the sequence and timing of recalled items, but scoring such data using conventional methods is difficult or impossible. We describe a Python-based semiautomated system that greatly simplifies this task. This software, called PyParse, can easily be used in conjunction with many common experiment authoring systems. Scored data is output in a simple ASCII format and can be accessed with the programming language of choice, allowing for the identification of features such as correct responses, prior-list intrusions, extra-list intrusions, and repetitions.

  4. The scoring system for patients with severe sepsis after orthotopic liver transplantation

    Institute of Scientific and Technical Information of China (English)

    Shun-Wei Huang; Xiang-Dong Guan; Xiao-Shun He; Juan Chen; Bin Ouyang

    2006-01-01

    BACKGROUND:Because of the complicated pathological features after liver transplantation, severe sepsis is dififcult to treat and often leads to death. This study was undertaken to analyze the role of orthotopic liver transplantation (OLT) in patients with severe sepsis and to evaluate the effect of the scoring system. METHODS:Fifty-six patients conformed to the inclusion criteria. They were divided into two groups: non-OLT group (group A) and OLT group (group B). Besides the general data of the patients, the surveillance of blood lactate, the number of failed organs, acute physiology and chronic health evaluationⅡ(APACHEⅡ) and mutiple organ dysfunction score (MODS) were evaluated at the 1st, 3rd and 7th day after OLT. RESULTS:The mortality during hospitalization was 30%in the non-OLT group and 57.6%in the other group. The level of blood lactate at the 1st day of OLT increased more signiifcantly in the OLT group than in the non-OLT group (P CONCLUSIONS: The persistently higher level of blood lactate during 7 days may be a dependent risk factor. Immunosuppression may be another risk factor for OLT patients. The mortality of OLT in patients with severe sepsis in 28 days is almost double that in non-OLT patients. The MODS score is better than the APACHEⅡscore in the assessment of organ failure in OLT patients with severe sepsis. The standard scoring system could be improved or a new scoring system that includes the blood lactate score should be established for liver transplantation.

  5. A Comparison of Systemic Inflammation-Based Prognostic Scores in Patients on Regular Hemodialysis

    Directory of Open Access Journals (Sweden)

    Akihiko Kato

    2013-10-01

    Full Text Available Background/Aims: Systemic inflammation-based prognostic scores have prognostic power in patients with cancer, independently of tumor stage and site. Although inflammatory status is associated with mortality in hemodialysis (HD patients, it remains to be determined as to whether these composite scores are useful in predicting clinical outcomes. Methods: We calculated the 6 prognostic scores [Glasgow prognostic score (GPS, modified GPS (mGPS, neutrophil-lymphocyte ratio (NLR, platelet lymphocyte ratio (PLR, prognostic index (PI and prognostic nutritional index (PNI], which have been established as a useful scoring system in cancer patients. We enrolled 339 patients on regular HD (age: 64 ± 13 years; time on HD: 129 ± 114 months; males/females = 253/85 and followed them for 42 months. The area under the receiver-operating characteristics curve was used to determine which scoring system was more predictive of mortality. Results: Elevated GPS, mGPS, NLR, PLR, PI and PNI were all associated with total mortality, independent of covariates. If GPS was raised, mGPS, NLR, PLR and PI were also predictive of all-cause mortality and/or hospitalization. GPS and PNI were associated with poor nutritional status. Using overall mortality as an endpoint, the area under the curve (AUC was significant for a GPS of 0.701 (95% CI: 0.637-0.765; p Conclusion: GPS, based on serum albumin and highly sensitive C-reactive protein, has the most prognostic power for mortality prediction among the prognostic scores in HD patients. However, as the determination of serum albumin reflects mortality similarly to GPS, other composite combinations are needed to provide additional clinical utility beyond that of albumin alone in HD patients.

  6. Noninvasive scoring system for significant inflammation related to chronic hepatitis B

    Science.gov (United States)

    Hong, Mei-Zhu; Ye, Linglong; Jin, Li-Xin; Ren, Yan-Dan; Yu, Xiao-Fang; Liu, Xiao-Bin; Zhang, Ru-Mian; Fang, Kuangnan; Pan, Jin-Shui

    2017-03-01

    Although a liver stiffness measurement-based model can precisely predict significant intrahepatic inflammation, transient elastography is not commonly available in a primary care center. Additionally, high body mass index and bilirubinemia have notable effects on the accuracy of transient elastography. The present study aimed to create a noninvasive scoring system for the prediction of intrahepatic inflammatory activity related to chronic hepatitis B, without the aid of transient elastography. A total of 396 patients with chronic hepatitis B were enrolled in the present study. Liver biopsies were performed, liver histology was scored using the Scheuer scoring system, and serum markers and liver function were investigated. Inflammatory activity scoring models were constructed for both hepatitis B envelope antigen (+) and hepatitis B envelope antigen (‑) patients. The sensitivity, specificity, positive predictive value, negative predictive value, and area under the curve were 86.00%, 84.80%, 62.32%, 95.39%, and 0.9219, respectively, in the hepatitis B envelope antigen (+) group and 91.89%, 89.86%, 70.83%, 97.64%, and 0.9691, respectively, in the hepatitis B envelope antigen (‑) group. Significant inflammation related to chronic hepatitis B can be predicted with satisfactory accuracy by using our logistic regression-based scoring system.

  7. Effect of readout direction in the edge profile on the modulation transfer function of computed radiographic systems by use of the edge method.

    Science.gov (United States)

    Tanaka, Nobukazu; Morishita, Junji; Tsuda, Norisato; Ohki, Masafumi

    2013-07-01

    We investigated the effect of the readout direction of the edge profile obtained by the edge method on the presampled modulation transfer function (MTF) in various computed radiographic (CR) systems. There were no differences in the MTFs derived from two edge profiles in the sub-scanning direction of four CR systems used in this study. On the other hand, the MTFs measured at a readout direction from the low (edge) to the high (direct exposure) exposure region were higher than those measured at a readout direction from the high to the low exposure region in the laser-beam scanning direction for three of the four CR systems. Although this phenomenon depends on the CR system, it is important to understand and indicate both MTFs at the two edge profiles in the laser-beam scanning direction for accurate assessment of the resolution property.

  8. Evaluation of a novel feather scoring system for monitoring feather damaging behaviour in parrots.

    Science.gov (United States)

    van Zeeland, Yvonne R A; Bergers, Madeleine J; van der Valk, Lisette; Schoemaker, Nico J; Lumeij, Johannes T

    2013-05-01

    Feather damaging behaviour is common in captive psittacine birds and there is a need for reliable methods to evaluate the efficacy of therapeutic and preventive interventions. This study compared the inter- and intra-observer reliabilities of a novel feather scoring system with an existing system to assess the plumage of grey parrots (Psittacus erithacus). Regions of the body were photographed separately at 1 week intervals and shown at random to 35 examiners (avian veterinarians and veterinary students), who used the two scoring systems to assess plumage. Since the quality of the photographs was insufficient to allow accurate assessment of the individual flight and tail feathers, the novel scoring system was only evaluated for its reliability regarding covert and down feathers. Inter- and intra-observer reliabilities were determined using the intra-class correlation coefficient. Bland-Altman analysis was performed to determine absolute reliabilities for both systems. Correlation coefficients were 0.90 and 0.95 for intra-observer reliability and 0.83 and 0.89 for inter-observer reliability for the existing and novel feather scoring systems, respectively. When using the novel system, a change in plumage condition of ≥10% was needed to ensure that the change reflected a real difference in 95% of cases, while a change of ≥15% was needed for the existing system. Since it may take from 4 weeks (covert or down feathers) to over 1 year (flight or tail feathers) for feathers to regrow, sufficient time should be allowed to elapse between two scoring sessions to reliably evaluate the efficacy of preventive or therapeutic interventions for feather damaging behaviour.

  9. The Image Quality of a Digital Chest X-Ray Radiography System: Comparison of Quantitative Image Quality Analysis and Radiologists' Visual Scoring

    Energy Technology Data Exchange (ETDEWEB)

    Nam, Ji Ho [Dept. of Radiology Oncology, Yongsan Hospital, Pusan National University College of Medicine, Yongsan (Korea, Republic of); Chung, Myung Jin [Dept. of Radiology, Samsung Medical Center, Seoul (Korea, Republic of); Park, Darl; Kim, Won Taek; Kim, Yong Ho; Ki, Yong Kan; Kim, DFong Hyun; Lee, Ju Hee; Kim, Dong Won [Dept. of Radiology Oncology, Yongsan Hospital, Pusan National University College of Medicine, Yongsan (Korea, Republic of); Jeon, Ho Sang [Reserach Institue for Convergence of Biomedical Science and Technology, Yongsan Hospital, Pusan National University College of Medicine, Yongsan (Korea, Republic of)

    2011-11-15

    To evaluate the performance of imaging devices, which should be periodically monitored to maintain high quality images to the radiologists. Additionally, this evaluation may prevent patients from radiation over-exposure. The most suitable engineering standard for imaging performance evaluation of digital X-ray thoracic images was determined. IEC 62220-1 standards were used to evaluate the performance of the images. In succession, the visibilities of overall image, pneumothorax, and humerus head in anthropomorphic thoracic phantom images were used to evaluate the image qualities by radiologists. The rank correlation coefficient (p) of visual scoring by radiologists with system spatial resolution is not meaningful (p-value, p = 0.295), but is significant with image noise (p-value, p -0.9267). Finally, the noise equivalent quanta (NEQ) presents a high rank correlation for visual scoring of radiologists (p-value, p = 0.9320). Image quality evaluation of radiologists were mainly affected by imaging noise. Hence, the engineered standard for evaluating image noise is the most important index to effectively monitor the performance of X-ray images. Additionally, the NEQ can be used to evaluate the performance of radiographic systems, because it theoretically corresponds to the synthetic image quality of systems.

  10. Radiographic Assessment for Back Pain

    Science.gov (United States)

    Radiographic Assessment for Back Pain What are Radiographic Assessments? When Should I get an X-ray for Low Back Pain? Other Reasons for Having an X-ray What ... What are Radiographic Assessments? Radiographic assessments for low back pain involve the use of X-rays to determine ...

  11. Comparison of two comorbidity scoring systems for older adults with traumatic injuries.

    Science.gov (United States)

    Holmes, Meredith; Garver, Matt; Albrecht, Lily; Arbabi, Saman; Pham, Tam N

    2014-10-01

    The purpose of this study was to determine the mortality predictive value of two different comorbidity scores, Comorbidity-Polypharmacy Score (CPS) and Charlson scoring system, in a large sample of older trauma patients. At an urban tertiary care Level I trauma center, trauma patients aged 55 years and older who were initially admitted to critical care were included. This retrospective chart review was conducted at Harborview Medical Center in Seattle, WA. Older trauma patients admitted from January 1, 2010 through December 31, 2010 were screened for inclusion. One-year mortality data were obtained from the Washington State Department of Health. Covariates included age, presence of hypotension, traumatic brain injury, and Injury Severity Score. Records for 667 older trauma patients were reviewed. In multivariate analyses, CPS was an independent predictor of fatal outcomes. Higher CPS was associated with greater mortality, however, it was not superior to Charlson methodology in predicting 1-year mortality in this patient cohort. The addition of a comorbidity score improves multivariate models predicting long-term mortality in older trauma patients. There was no advantage to using CPS instead of Charlson score, and each was an independent predictor of fatal outcomes. Copyright © 2014 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

  12. A scoring system for coat and tail condition in ringtailed lemurs, Lemur catta.

    Science.gov (United States)

    Berg, Wiebke; Jolly, Alison; Rambeloarivony, Hajarimanitra; Andrianome, Vonjy; Rasamimanana, Hantanirina

    2009-03-01

    Coat condition can be influenced by a wide variety of disorders and thus provides a useful tool for noninvasive health and welfare assessments in wild and captive animals. Using Lemur catta as an exemplar, we offer a 6-step scoring system for coat and tail condition, ranging from perfectly fluffy to half or more of body and tail being hairless. The categories are described in detail and illustrated with sample pictures from a wild population in Berenty Reserve, Madagascar. Furthermore, we elaborate on intermediate conditions and discoloration of fur. Coat condition scoring allows the comparison between years, seasons, and the effect of toxin, disease or stress. Although this system was developed for wild L. catta, we believe it can also be of value for other species. We recommend scoring coat condition in healthy wild mammal populations to give a baseline on yearly and seasonal variations vs. deteriorating health conditions or pathology. (c) 2009 Wiley-Liss, Inc.

  13. A Survey of Attitudes towards the Clinical Application of Systemic Inflammation Based Prognostic Scores in Cancer

    Directory of Open Access Journals (Sweden)

    David G. Watt

    2015-01-01

    Full Text Available Introduction. The systemic inflammatory response (SIR plays a key role in determining nutritional status and survival of patients with cancer. A number of objective scoring systems have been shown to have prognostic value; however, their application in routine clinical practice is not clear. The aim of the present survey was to examine the range of opinions internationally on the routine use of these scoring systems. Methods. An online survey was distributed to a target group consisting of individuals worldwide who have reported an interest in systemic inflammation in patients with cancer. Results. Of those invited by the survey (n=238, 65% routinely measured the SIR, mainly for research and prognostication purposes and clinically for allocation of adjuvant therapy or palliative chemotherapy. 40% reported that they currently used the Glasgow Prognostic Score/modified Glasgow Prognostic Score (GPS/mGPS and 81% reported that a measure of systemic inflammation should be incorporated into clinical guidelines, such as the definition of cachexia. Conclusions. The majority of respondents routinely measured the SIR in patients with cancer, mainly using the GPS/mGPS for research and prognostication purposes. The majority reported that a measure of the SIR should be adopted into clinical guidelines.

  14. Comparison of McCarthy and Goodenough-Harris Scoring Systems for Kindergarten Children's Human Figure Drawings.

    Science.gov (United States)

    Piersel, Wayne C.; Santos, Lande

    1982-01-01

    Comparison of the Goodenough-Harris and McCarthy scoring procedures for 60 kindergarten children's drawings yielded substantial agreement between the two scoring systems. The streamlined McCarthy scoring system should be utilized when large numbers of children are being evaluated with short periods of time. (Author)

  15. Same Noses, Different Nasalance Scores: Data from Normal Subjects and Cleft Palate Speakers for Three Systems for Nasalance Analysis

    Science.gov (United States)

    Bressmann, Tim; Klaiman, Paula; Fischbach, Simone

    2006-01-01

    Nasalance scores from the Nasometer, the NasalView and the OroNasal System were compared. The data was collected from 50 normal participants and 19 hypernasal patients with cleft palate. The Nasometer had the lowest nasalance scores for the non-nasal Zoo Passage and that the OroNasal System had the lowest nasalance scores for the Nasal Sentences.…

  16. Eliminating patellofemoral complications in total knee arthroplasty: clinical and radiographic results of 121 consecutive cases using the Duracon system.

    Science.gov (United States)

    Mont, M A; Yoon, T R; Krackow, K A; Hungerford, D S

    1999-06-01

    This study reports the minimum 5-year follow-up of our experience with the Duracon Total Knee Arthroplasty System. A total of 121 consecutive total knee replacements using the Duracon system (Howmedica, Rutherford, NJ) were performed in 104 patients. Three patients died before the 5-year follow-up and were excluded from the final evaluation. The remaining 118 knees (101 patients) were assessed at a mean follow-up of 65 months (range, 60-80 months). The knee diagnoses were osteoarthritis in 97 patients, rheumatoid arthritis in 2 patients, osteonecrosis in 1 patient, and pigmented villonodular synovitis in 1 patient. The mean age was 70 years (range, 28-85 years). There were no reoperations for aseptic loosening, and there have been no reoperations for patellofemoral problems. At final follow-up evaluation, 112 knees (96%) had good or excellent results, and 6 knees (4%) had poor clinical results or went on to revision. For the surviving knees, the preoperative Knee Society objective score improved from a mean of 52 points (range, 20-72 points) to a final follow-up mean of 94 points (range, 66-100 points). Five knees needed reoperations: 2 knees in 1 patient because of acute hematogenous infection at 12 months, 1 knee because of a supracondylar femur fracture, 1 because of a patellar tendon rupture, and 1 to increase polyethylene thickness because of instability. The lack of aseptic loosening at the minimum 5-year follow-up compares favorably with any cemented or cementless series of knee replacement. The almost complete absence of patellofemoral complications in this series also indicates that the design changes, with particular attention to the trochlea design and patellofemoral contact throughout full flexion, have achieved their intended purpose. The results are encouraging at midterm, awaiting true long-term (15-20 years) follow-up.

  17. Liver Stiffness Measurement-Based Scoring System for Significant Inflammation Related to Chronic Hepatitis B

    Science.gov (United States)

    Hong, Mei-Zhu; Zhang, Ru-Mian; Chen, Guo-Liang; Huang, Wen-Qi; Min, Feng; Chen, Tian; Xu, Jin-Chao; Pan, Jin-Shui

    2014-01-01

    Objectives Liver biopsy is indispensable because liver stiffness measurement alone cannot provide information on intrahepatic inflammation. However, the presence of fibrosis highly correlates with inflammation. We constructed a noninvasive model to determine significant inflammation in chronic hepatitis B patients by using liver stiffness measurement and serum markers. Methods The training set included chronic hepatitis B patients (n = 327), and the validation set included 106 patients; liver biopsies were performed, liver histology was scored, and serum markers were investigated. All patients underwent liver stiffness measurement. Results An inflammation activity scoring system for significant inflammation was constructed. In the training set, the area under the curve, sensitivity, and specificity of the fibrosis-based activity score were 0.964, 91.9%, and 90.8% in the HBeAg(+) patients and 0.978, 85.0%, and 94.0% in the HBeAg(−) patients, respectively. In the validation set, the area under the curve, sensitivity, and specificity of the fibrosis-based activity score were 0.971, 90.5%, and 92.5% in the HBeAg(+) patients and 0.977, 95.2%, and 95.8% in the HBeAg(−) patients. The liver stiffness measurement-based activity score was comparable to that of the fibrosis-based activity score in both HBeAg(+) and HBeAg(−) patients for recognizing significant inflammation (G ≥3). Conclusions Significant inflammation can be accurately predicted by this novel method. The liver stiffness measurement-based scoring system can be used without the aid of computers and provides a noninvasive alternative for the prediction of chronic hepatitis B-related significant inflammation. PMID:25360742

  18. Liver stiffness measurement-based scoring system for significant inflammation related to chronic hepatitis B.

    Directory of Open Access Journals (Sweden)

    Mei-Zhu Hong

    Full Text Available Liver biopsy is indispensable because liver stiffness measurement alone cannot provide information on intrahepatic inflammation. However, the presence of fibrosis highly correlates with inflammation. We constructed a noninvasive model to determine significant inflammation in chronic hepatitis B patients by using liver stiffness measurement and serum markers.The training set included chronic hepatitis B patients (n = 327, and the validation set included 106 patients; liver biopsies were performed, liver histology was scored, and serum markers were investigated. All patients underwent liver stiffness measurement.An inflammation activity scoring system for significant inflammation was constructed. In the training set, the area under the curve, sensitivity, and specificity of the fibrosis-based activity score were 0.964, 91.9%, and 90.8% in the HBeAg(+ patients and 0.978, 85.0%, and 94.0% in the HBeAg(- patients, respectively. In the validation set, the area under the curve, sensitivity, and specificity of the fibrosis-based activity score were 0.971, 90.5%, and 92.5% in the HBeAg(+ patients and 0.977, 95.2%, and 95.8% in the HBeAg(- patients. The liver stiffness measurement-based activity score was comparable to that of the fibrosis-based activity score in both HBeAg(+ and HBeAg(- patients for recognizing significant inflammation (G ≥3.Significant inflammation can be accurately predicted by this novel method. The liver stiffness measurement-based scoring system can be used without the aid of computers and provides a noninvasive alternative for the prediction of chronic hepatitis B-related significant inflammation.

  19. Risk Factors and Scoring Systems for Patients with Candidemia at a Tertiary Hospital in Jakarta, Indonesia.

    Science.gov (United States)

    Mursinah, Mursinah; Ibrahim, Fera; Wahid, Mardiastuti H

    2016-07-01

    to identify the risk factors of candidemia and to develop a scoring system that could be implemented in Cipto Mangunkusumo Hospital (RSCM), Jakarta, Indonesia. this study was a retrospective study with case control design using the medical records of patients since 2011 to 2014. All sepsis patients hospitalized in the RSCM with a positive blood culture for Candida were included in this study as a case group. The control group was all of the sepsis patients without candidemia. The ratio for case and control groups was equal (1:1). from 234 patients who were analyzed, the risk factors that influenced the study were length of stay of 8-14 days (OR 3.464; 95% CI 1.458-7.800), length of stay of more than 14 days (OR 6.844; 95% CI 3.0-15.330), severe sepsis (OR 16.407; 95% CI 1.458-7.800), and surgery (OR 3.03; 95% CI 1.492-6.152). The predictors for candidemia in RSCM were length of stay in hospital for 8-14 days (score 1), a length of stay ≥14 days (score 2), severe sepsis (score 3), and surgery (score 1), with a cut off score of 3.5. the results of this study have indicated that a scoring system in order to guide an empirical treatment for candidemia can be developed by using the risk factors for candidemia from patients who have been identified as patients with risk at Cipto Mangunkusumo Hospital.

  20. Prediction of Carotid Artery Stenosis in Candidates of Coronary Artery Bypasses Surgery by A Scoring System.

    Directory of Open Access Journals (Sweden)

    Sh. Shirani

    2007-05-01

    Full Text Available Background and Objective: Up to 9% of coronary ar-tery bypass grafting (CABG patients suffer from stroke after the surgery. Although post CABG stroke has multiple etiologies, stenosis of cervical carotid arteries is an important factor. Many studies have evaluated carotid artery stenosis in CABG. Carotid stenosis and its related factors and a new scoring sys-tem for selection of CABG patients for Doppler study are introduced. Materials and methods: 1721 consecutive cases of non-urgent CABG were evaluated for presence of significant carotid stenosis (> 50% stenosis. The asso-ciation of age, sex, hypertension, smoking, diabetes, dislipidemia and left main coronary stenosis with ca-rotid stenosis was evaluated. For introducing a scor-ing method, absence of each related factor was scored by 1 and its presence by 2. The score range for each patient was from 5 (none of related factors up to 10 (all of related factors. Results: 7% of patients suffered from significant stenosis. Female gender, age more than 55 years old, hypertension, diabetes, and stenosis of left main coronary artery were the related risk factors in uni-variate analysis. A step type analysis revealed patients with score 5 have 98.3% negative predictive value (NPV for significant stenosis with 96.2% sensitivity and 13.9% specificity. Patients with score 10 have 93.9% NPV for significant stenosis with 99.9% speci-ficity. Conclusion: This scoring system may help for better selection of patients for Doppler study before CABG.

  1. School Readiness and the Draw-a-Man Test: An Empiricaly Derived Alternative to Harris' Scoring System.

    Science.gov (United States)

    Simner, Marvin L.

    1985-01-01

    An abbreviated scoring system for the Goodenough-Harris Draw-A-Man Test found that three items had the same overall potential for correctly identifying at-risk kindergarteners as more time-consuming scoring methods. (CL)

  2. Comparison of Glasgow-Blatchford score and full Rockall score systems to predict clinical outcomes in patients with upper gastrointestinal bleeding

    Directory of Open Access Journals (Sweden)

    Mokhtare M

    2016-10-01

    Full Text Available Marjan Mokhtare, Vida Bozorgi, Shahram Agah, Mehdi Nikkhah, Amirhossein Faghihi, Amirhossein Boghratian, Neda Shalbaf, Abbas Khanlari, Hamidreza Seifmanesh Colorectal Research Center, Rasoul Akram Hospital, Tehran, Iran Background: Various risk scoring systems have been recently developed to predict clinical outcomes in patients with upper gastrointestinal bleeding (UGIB. The two commonly used scoring systems include full Rockall score (RS and the Glasgow-Blatchford score (GBS. Bleeding scores were assessed in terms of prediction of clinical outcomes in patients with UGIB. Patients and methods: Two hundred patients (age >18 years with obvious symptoms of UGIB in the emergency department of Rasoul Akram Hospital were enrolled. Full RS and GBS were calculated. We followed the patients for records of rebleeding and 1-month mortality. A receiver operating characteristic curve by using areas under the curve (AUCs was used to statistically identify the best cutoff point. Results: Eighteen patients were excluded from the study due to failure to follow-up. Rebleeding and mortality rate were 9.34% (n=17 and 11.53% (n=21, respectively. Regarding 1-month mortality, full RS was better than GBS (AUC, 0.648 versus 0.582; P=0.021. GBS was more accurate in terms of detecting transfusion need (AUC, 0.757 versus 0.528; P=0.001, rebleeding rate (AUC, 0.722 versus 0.520; P=0.002, intensive care unit admission rate (AUC, 0.648 versus 0.582; P=0.021, and endoscopic intervention rate (AUC, 0.771 versus 0.650; P<0.001. Conclusion: We found the full RS system is better for 1-month mortality prediction while GBS system is better for prediction of other outcomes. Keywords: full Rockall score, Glasgow-Blatchford score, gastrointestinal bleeding, mortality, prognosis

  3. Simple scoring system for predicting cirrhosis in nonalcoholic fatty liver disease

    Science.gov (United States)

    Kessoku, Takaomi; Ogawa, Yuji; Yoneda, Masato; Imajo, Kento; Sumida, Yoshio; Eguchi, Yuichiro; Fujii, Hideki; Hyogo, Hideyuki; Ono, Masafumi; Suzuki, Yasuaki; Kawaguchi, Takumi; Chayama, Kazuaki; Tanaka, Saiyu; Fujimoto, Kazuma; Anzai, Keizo; Saibara, Toshiji; Sata, Michio; Itoh, Yoshito; Nakajima, Atsushi; (JSG-NAFLD), Takeshi Okanoue; Japan Study Group of NAFLD

    2014-01-01

    AIM: To investigate a simple noninvasive scoring system for predicting liver cirrhosis in nonalcoholic fatty liver disease (NAFLD) patients. METHODS: A total of 1048 patients with liver-biopsy-confirmed NAFLD were enrolled from nine hepatology centers in Japan (stage 0, 216; stage 1, 334; stage 2, 270; stage 3, 190; stage 4, 38). The weight and height of the patients were measured using a calibrated scale after requesting the patients to remove their shoes and any heavy clothing. Venous blood samples were obtained in the morning after the patients had fasted overnight for 12 h. Laboratory evaluation was performed in all patients. Statistical analysis was conducted using SPSS version 12.0. Continuous variables were expressed as mean ± SD. RESULTS: The optimal cutoff value of platelet count, serum albumin, and aminotransferase/alanine aminotransferase ratio (AAR) was set at 0.9, respectively, by the receiver operating characteristic curve. These three variables were combined in an unweighted sum (platelet count = 1 point, serum albumin = 1 point, AAR = 1 point) to form an easily calculated composite score for predicting cirrhosis in NAFLD patients, called the PLALA (platelet, albumin, AAR) score. The diagnosis of PLALA ≥ 2 had sufficient accuracy for detecting liver cirrhosis in NAFLD patients. CONCLUSION: The PLALA score may be an ideal scoring system for detecting cirrhosis in NAFLD patients with sufficient accuracy and simplicity to be considered for clinical use. PMID:25110437

  4. Modified PADSS (Post Anaesthetic Discharge Scoring System) for monitoring outpatients discharge.

    Science.gov (United States)

    Palumbo, Piergaspare; Tellan, Guglielmo; Perotti, Bruno; Pacilè, Maria Antonietta; Vietri, Francesco; Illuminati, Giulio

    2013-01-01

    The decision to discharge a patient undergoing day surgery is a major step in the hospitalization pathway, because it must be achieved without compromising the quality of care, thus ensuring the same assistance and wellbeing as for a long-term stay. Therefore, the use of an objective assessment for the management of a fair and safe discharge is essential. The authors propose the Post Anaesthetic Discharge Scoring System (PADSS), which considers six criteria: vital signs, ambulation, nausea/vomiting, pain, bleeding and voiding. Each criterion is given a score ranging from 0 to 2. Only patients who achieve a score of 9 or more are considered ready for discharge. Furthermore, PADSS has been modified to ensure a higher level of safety, thus the "vital signs" criteria must never score lower than 2, and none of the other five criteria must ever be equal to 0, even if the total score reaches 9. The effectiveness of PADSS was analyzed on 2432 patients, by recording the incidence of postoperative complications and the readmission to hospital. So far PADDS has proved to be an efficient system that guarantees safe discharge.

  5. An Inflammatory Polymorphisms Risk Scoring System for the Differentiation of Ischemic Stroke Subtypes

    Directory of Open Access Journals (Sweden)

    Elena Muiño

    2015-01-01

    Full Text Available Inflammation has been associated with atherothrombotic stroke and recently with cardioembolic stroke. Different genetic risk factors have been specifically associated with the subtypes of ischemic stroke (cardioembolic, atherothrombotic, and lacunar. However, there are no studies that have generated genetic risk scores for the different subtypes of ischemic stroke using polymorphisms associated with inflammation. Methods. We have analyzed 68 polymorphisms of 30 inflammatory mediator genes in 2,685 subjects: 1,987 stroke cases and 698 controls. We generated a genetic scoring system with the most significant polymorphisms weighted by the odds ratio of every polymorphism and taken into consideration the stroke subtype. Results. Three polymorphisms, rs1205 (CRP gene, rs1800779, and rs2257073 (NOS3 gene, were associated with cardioembolic stroke (p value <0.05. The score generated was only associated with the cardioembolic stroke subtype (p value: 0.001 and was replicated in an independent cohort (p value: 0.017. The subjects with the highest score presented a cardioembolic stroke in 92.2% of the cases (p value: 0.002. Conclusion. The genetics of inflammatory markers is more closely associated with cardioembolic strokes than with atherothrombotic or lacunar strokes. The genetic risk scoring system could be useful in the prediction and differentiation of ischemic stroke; however, it might be specific to particular ischemic stroke subtypes.

  6. Reliability of the Advanced Psychodiagnostic Interpretation (API) Scoring System for the Bender Gestalt.

    Science.gov (United States)

    Aucone, Ernest J.; Raphael, Alan J.; Golden, Charles J.; Espe-Pfeifer, Patricia; Seldon, Jen; Pospisil, Tanya; Dornheim, Liane; Proctor-Weber, Zoe; Calabria, Michael

    1999-01-01

    Assessed the interrater reliability of the revised Advanced Psychodiagnostic Interpretation (API) (A. Raphael and C. Golden, 1998) scoring system for the Bender Gestalt Test (L. Bender, 1938). Agreement across nine raters exceeded 90% for each of three clinical protocols, and kappa statistics indicated good interrater reliability. (SLD)

  7. Applicability of the Classroom Assessment Scoring System in Chinese Preschools Based on Psychometric Evidence

    Science.gov (United States)

    Hu, Bi Ying; Fan, Xitao; Gu, Chuanhua; Yang, Ning

    2016-01-01

    Research Findings: This study examined the applicability of the Classroom Assessment Scoring System (CLASS) Pre-K (Pianta, La Paro, & Hamre, 2008) and its underpinning framework of teaching through interactions in typical Chinese kindergarten classrooms. A sample of 180 kindergarten classrooms in China was selected, and the CLASS was used to…

  8. A scoring system to predict the severity of appendicitis in children

    NARCIS (Netherlands)

    Gorter, Ramon R.; van den Boom, Anne L oes; Heij, Hugo A.; Kneepkens, C. M Frank; Hulsker, Caroline C.; Tenhagen, Mark; Dawson, Imro; van der Lee, Johanna H.

    2016-01-01

    BACKGROUND: It appears that two forms of appendicitis exist. Preoperative distinction between the two is essential to optimize treatment outcome. This study aimed to develop a scoring system to accurately determine the severity of appendicitis in children. MATERIALS AND METHODS: Historical cohort st

  9. Comparison of two scoring systems for diagnosing levator ani muscle damage

    NARCIS (Netherlands)

    Vergeldt, T.F.M.; Weemhoff, M.; Notten, K.J.; Kessels, A.G.; Kluivers, K.B.

    2013-01-01

    INTRODUCTION AND HYPOTHESIS: Levator defects are risk factors for pelvic organ prolapse (POP) and its recurrence. The most widely used scoring systems for severity of defects shown on magnetic resonance imaging (MRI) and perineal ultrasound (US) are not identical. The aim of this study was to invest

  10. Usefulness of staging systems and prognostic scores for hepatocellular carcinoma treatments

    Institute of Scientific and Technical Information of China (English)

    Xavier; Adhoute; Guillaume; Penaranda; Jean; Luc; Raoul; Patrice; Le; Treut; Emilie; Bollon; Jean; Hardwigsen; Paul; Castellani; Hervé; Perrier; Marc; Bourlière

    2016-01-01

    Therapeutic management of hepatocellular carcinoma(HCC) is quite complex owing to the underlying cirrhosis and portal vein hypertension. Different scores or classification systems based on liver function and tumoral stages have been published in the recent years. If none of them is currently "universally" recognized, the Barcelona Clinic Liver Cancer(BCLC) staging system has become the reference classification system in Western countries. Based on a robust treatment algorithm associated with stage stratification, it relies on a high level of evidence. However, BCLC stage B and C HCC include a broad spectrum of tumors but are only matched with a single therapeutic option. Some experts have thus suggested to extend the indications for surgery or for transarterial chemoembolization. In clinical practice, many patients are already treated beyond the scope of recommendations. Additional alternative prognostic scores that could be applied to any therapeutic modality have been recently proposed. They could represent complementary tools to the BCLC staging system and improve the stratification of HCC patients enrolled in clinical trials, as illustrated by the NIACE score. Prospective studies are needed to compare these scores and refine their role in the decision making process.

  11. Nurse-administered early warning score system can be used for emergency department triage

    DEFF Research Database (Denmark)

    Christensen, Dorthea; Jensen, Nanna Martin; Maaløe, Rikke;

    2011-01-01

    Studies have shown that early warning score systems can identify in-patients at high risk of catastrophic deterioration and this may possibly be used for an emergency department (ED) triage. Bispebjerg Hospital has introduced a multidisciplinary team (MT) in the ED activated by the Bispebjerg Early...

  12. 76 FR 10053 - Changes to the Public Housing Assessment System (PHAS): Capital Fund Scoring Notice

    Science.gov (United States)

    2011-02-23

    ..., Office of Public and Indian Housing, Real Estate Assessment Center (REAC), 550 12th Street, SW., Suite... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT Changes to the Public Housing Assessment System (PHAS): Capital Fund Scoring...

  13. A scoring system to predict the severity of appendicitis in children

    NARCIS (Netherlands)

    Gorter, Ramon R.; van den Boom, Anne L oes; Heij, Hugo A.; Kneepkens, C. M Frank; Hulsker, Caroline C.; Tenhagen, Mark; Dawson, Imro; van der Lee, Johanna H.

    2016-01-01

    BACKGROUND: It appears that two forms of appendicitis exist. Preoperative distinction between the two is essential to optimize treatment outcome. This study aimed to develop a scoring system to accurately determine the severity of appendicitis in children. MATERIALS AND METHODS: Historical cohort

  14. Predictive Value of Tokuhashi Scoring Systems in Spinal Metastases, Focusing on Various Primary Tumor Groups

    DEFF Research Database (Denmark)

    Wang, Miao; Bünger, Cody; Haisheng, Li

    2012-01-01

    STUDY DESIGN: We conducted a prospective cohort study of 448 patients with spinal metastases from a variety of cancer groups. OBJECTIVE: To determine the specific predictive value of the Tokuhashi scoring system (T12) and its revised version (T15) in spinal metastases of various primary tumors. S...

  15. Primary graft dysfunction; possible evaluation by high resolution computed tomography, and suggestions for a scoring system

    DEFF Research Database (Denmark)

    Belmaati, Esther; Jensen, Claus; Kofoed, Klaus F

    2009-01-01

    /exclusion criteria of patients, pilot testing, and training investigators through review of disagreements, were possibilities suggested for decreasing inter/intra observer variability. Factors affecting the image attenuation (Hounsfield numbers) and thus, the reproducibility of CT densitometric measurements were...... of minimal influence. Studies have reported on how lung tissue images, derived by HRCT, can be scored and graded. There does not seem to be a golden standard for evaluating these images, which makes comparison between methods challenging. These scoring systems assess the presence, severity, and extent...

  16. Introducing a Clinical-behavioural Scoring System for Children's Oral Hygiene

    OpenAIRE

    América Segovia-Villanueva; Alejandro J. Casanova-Rosado; Ana A. Vallejos-Sánchez; Juan F. Casanova-Rosado; Medina-Solís, Carlo E.; Gerardo Maupomé

    2006-01-01

    Objectives Developing and testing a clinical-behavioural scoring system for assessing children’s oral hygiene. Materials and Methods One clinical variable (the presence of dental plaque, measured using Silness and Löe’s index) and one behavioural vari-able (self-reported tooth brushing frequency) were combined into secondary data analysis of research databases for 3-6-year-olds and 6-13-year-olds in a Mexican community. The combined scoring is an ordinal scale that depicts suitable, moderate ...

  17. [The scoring and rating system for the estimation of the teaching efficiency in forensic medicine].

    Science.gov (United States)

    Buromskiĭ, I V; Kil'diushov, E M

    2012-01-01

    The authors developed a system of criteria for the evaluation of the results of education of forensic medical students based on the scoring and rating scale. The major requirements for the organization of academic activities are considered. It is emphasized that the compliance with these requirements is an indispensable prerequisite for the introduction of the above system in the training routine at the Department of Forensic Medicine.

  18. Radiation awareness among dentists, radiographers and students.

    Science.gov (United States)

    Furmaniak, Katarzyna Z; Kołodziejska, Marzena A; Szopiński, Kazimierz T

    2016-10-01

    The aim of this study was to assess radiation awareness among dentists, radiographers, dentistry students and radiography students from the Medical University of Warsaw. A questionnaire containing 13 multiple-choice questions was administered to 200 dentists, 200 radiographers, 100 dentistry students and 100 radiography students. Participants were asked about basic knowledge concerning dental radiological examinations. In total, 301 (50.2%) questionnaires were returned. The mean score of correct answers was 8.13 out of 13 for all responders; 8.36 for dentists, 8.11 for radiographers, 8.19 for dentistry students and 7.46 for radiography students. Range of correct answers varied from 3 to 12. Differences between the four main groups were not statistically significant. Dentists who had completed radiation protection training had significantly higher number of correct answers than untrained dentists. For radiographers, the level of education had no connection with the results. Correlation between year of the study and results was not visible in the dentistry student group. Within the radiography student group, students in the third year of the study had significantly higher number of correct answers than those in the first and second years of the study. Our survey shows that radiation awareness among dentists, radiographers and students is inadequate, without significant differences in the main groups. Dentists who had completed radiation protection training had better awareness than those without such training. Greater emphasis should be put on the dental radiology course in both dentistry and radiography programmes at universities.

  19. Weighing of risk factors for penetrating keratoplasty graft failure: application of Risk Score System

    Directory of Open Access Journals (Sweden)

    Abdo Karim Tourkmani

    2017-03-01

    Full Text Available AIM: To analyze the relationship between the score obtained in the Risk Score System (RSS proposed by Hicks et al with penetrating keratoplasty (PKP graft failure at 1y postoperatively and among each factor in the RSS with the risk of PKP graft failure using univariate and multivariate analysis. METHODS: The retrospective cohort study had 152 PKPs from 152 patients. Eighteen cases were excluded from our study due to primary failure (10 cases, incomplete medical notes (5 cases and follow-up less than 1y (3 cases. We included 134 PKPs from 134 patients stratified by preoperative risk score. Spearman coefficient was calculated for the relationship between the score obtained and risk of failure at 1y. Univariate and multivariate analysis were calculated for the impact of every single risk factor included in the RSS over graft failure at 1y. RESULTS: Spearman coefficient showed statistically significant correlation between the score in the RSS and graft failure (P0.05 between diagnosis and lens status with graft failure. The relationship between the other risk factors studied and graft failure was significant (P<0.05, although the results for previous grafts and graft failure was unreliable. None of our patients had previous blood transfusion, thus, it had no impact. CONCLUSION: After the application of multivariate analysis techniques, some risk factors do not show the expected impact over graft failure at 1y.

  20. Technical feasibility and validation of a coronary artery calcium scoring system using CT coronary angiography images

    Energy Technology Data Exchange (ETDEWEB)

    Pavitt, Christopher W. [Royal Brompton Hospital, Department of Cardiology, London (United Kingdom); Royal Brompton Hospital, Department of Radiology, London (United Kingdom); Harron, Katie [Institute of Child Health, UCL, Centre for Paediatric Epidemiology and Biostatistics, London (United Kingdom); Lindsay, Alistair C.; Ray, Robin [Royal Brompton Hospital, Department of Cardiology, London (United Kingdom); Zielke, Sayeh; Rubens, Michael B. [Royal Brompton Hospital, Department of Radiology, London (United Kingdom); Gordon, Daniel [Royal Marsden Hospital, Department of Physics, London (United Kingdom); Padley, Simon P. [Royal Brompton Hospital, Department of Radiology, London (United Kingdom); Imperial College, Faculty of Medicine, London (United Kingdom); Nicol, Edward D. [Royal Brompton Hospital, Department of Cardiology, London (United Kingdom); Royal Brompton Hospital, Department of Radiology, London (United Kingdom); Imperial College, Faculty of Medicine, London (United Kingdom)

    2016-05-15

    We validate a novel CT coronary angiography (CCTA) coronary calcium scoring system. Calcium was quantified on CCTA images using a new patient-specific attenuation threshold: mean + 2SD of intra-coronary contrast density (HU). Using 335 patient data sets a conversion factor (CF) for predicting CACS from CCTA scores (CCTAS) was derived and validated in a separate cohort (n = 168). Bland-Altman analysis and weighted kappa for MESA centiles and Agatston risk groupings were calculated. Multivariable linear regression yielded a CF: CACS = (1.185 x CCTAS) + (0.002 x CCTAS x attenuation threshold). When applied to CCTA data sets there was excellent correlation (r = 0.95; p < 0.0001) and agreement (mean difference -10.4 [95 % limits of agreement -258.9 to 238.1]) with traditional calcium scores. Agreement was better for calcium scores below 500; however, MESA percentile agreement was better for high risk patients. Risk stratification was excellent (Agatston groups k = 0.88 and MESA centiles k = 0.91). Eliminating the dedicated CACS scan decreased patient radiation exposure by approximately one-third. CCTA calcium scores can accurately predict CACS using a simple, individualized, semiautomated approach reducing acquisition time and radiation exposure when evaluating patients for CAD. This method is not affected by the ROI location, imaging protocol, or tube voltage strengthening its clinical applicability. (orig.)

  1. Pathology update to the Manchester Scoring System based on testing in over 4000 families.

    Science.gov (United States)

    Evans, D Gareth; Harkness, Elaine F; Plaskocinska, Inga; Wallace, Andrew J; Clancy, Tara; Woodward, Emma R; Howell, Tony A; Tischkowitz, Marc; Lalloo, Fiona

    2017-05-10

    While the requirement for thresholds for testing for mutations in BRCA1/2 is being questioned, they are likely to remain for individuals unaffected by a relevant cancer. It is still useful to provide pretesting likelihoods, but models need to take into account tumour pathology. The Manchester Scoring System (MSS) is a well-used, simple, paper-based model for assessing carrier probability that already incorporates pathology data. We have used mutation testing data from 4115 unrelated samples from affected non-Jewish individuals alongside tumour pathology to further refine the scoring system. Adding additional points for high-grade serous ovarian cancer <60 (HGSOC=+2) and adding grade score to those with triple-negative breast cancer, while reducing the score for those with HER2+ breast cancer (-6), resulted in significantly improved sensitivity and minor improvements in specificity to the MSS. Sporadic HGSOC <60 years thus reached a score of 15-19 points within the 10% grouping consistent with the 15/113-13.2% that were identified with a BRCA1/2 pathogenic variant. Validation in a population series of ovarian cancer from Cambridge showed high sensitivity at the 10% threshold 15/17 (88.2%). The new pathology-adjusted Manchester score MSS3 appears to provide an effective and simple-to-use estimate of the 10% and 20% thresholds for BRCA1/2 likelihood. For unaffected individuals, the 20-point (20%) threshold in their affected first-degree relative can be used to determine eligibility at the 10% threshold. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  2. New scoring system for intra-abdominal injury diagnosis after blunt trauma

    Directory of Open Access Journals (Sweden)

    Shojaee Majid

    2014-02-01

    Full Text Available 【Abstract】Objective: An accurate scoring system for intra-abdominal injury (IAI based on clinical manifestation and examination may decrease unnecessary CT scans, save time, and reduce healthcare cost. This study is designed to provide a new scoring system for a better diagno- sis of IAI after blunt trauma. Methods: This prospective observational study was performed from April 2011 to October 2012 on patients aged above 18 years and suspected with blunt abdominal trauma (BAT admitted to the emergency department (ED of Imam Hussein Hospital and Shohadaye Hafte Tir Hospital. All patients were assessed and treated based on Advanced Trauma Life Support and ED protocol. Diagnosis was done according to CT scan findings, which was considered as the gold standard. Data were gathered based on patient's history, physical exam, ultrasound and CT scan findings by a general practitioner who was not blind to this study. Chisquare test and logistic regression were done. Factors with significant relationship with CT scan were imported in multivariate regression models, where a coefficient (β was given based on the contribution of each of them. Scoring system was developed based on the obtained total βof each factor. Results: Altogether 261 patients (80.1% male were enrolled (48 cases of IAI. A 24-point blunt abdominal trauma scoring system (BATSS was developed. Patients were divided into three groups including low (score<8, moderate (8≤score<12 and high risk (score≥12. In high risk group immediate laparotomy should be done, moderate group needs further assessments, and low risk group should be kept under observation. Low risk patients did not show positive CT-scans (specificity 100%. Conversely, all high risk patients had positive CT-scan findings (sensitivity 100%. The receiver operating characteristic curve indicated a close relationship between the results of CT scan and BATSS (sensitivity=99.3%. Conclusion: The present scoring system furnishes a

  3. Assessing the waddle: An evaluation of a 3-point gait score system for ducks.

    Science.gov (United States)

    Makagon, Maja M; Woolley, Rebecca; Karcher, Darrin M

    2015-08-01

    Impaired walking ability is an economically important welfare problem that affects poultry raised for meat production, including Pekin ducks. To gain a better understanding of the impacts of walking impairments on duck production, and to identify contributing variables and plausible remedies, an accurate measure of walking ability must first be defined. The viability of a 3-point gait score system for characterizing the walking abilities of Pekin ducks was evaluated. Specifically, we examined whether the qualitative gait score categories corresponded to quantitative gait parameter measures, and evaluated the inter- and intra-rater reliabilities of the gait score system. Commercial Pekin ducks aged 13 to 14 d (14 d; 248 ducks), 20 to 21 d (21 d; 350 ducks), and 30 to 32 d (31 d; 368 ducks), were video recorded and gait scored using a 3-point system (GS0 = best gait; GS2 = poor gait) as they crossed a Tekscan(®) gait analysis system. Gait structure parameters were calculated based on 4 steps made by each duck. The most prominent differences were observed at 21 d and 31 d of age between the ducks with GS0 and GS2, with GS2 scoring ducks walking a shorter total distance, having greater differences in the amount of pressure applied to the right versus left leg, and the amount of time spent standing on 2 feet between steps. Gait score reliabilities were calculated separately for observers who received minimal training (M, N = 10) and those who viewed and discussed the sample cases (V, N = 13). Both groups assessed the gait of ducks from video footage. Inter-rater reliability (Fleiss kappa) was lowest for 14 d old ducks (M: k = 0.47, T: k = 0.62), and best for the 32 d old ducks (V: k = 0.75; T: k = 0.8). Overall, intra-rater reliabilities (Pearson's correlation) were high and were unaffected by the scorer's level of training (M: r = 0.87; V: r = 0.87; t21 = 0.43). The results indicate that a 3-point gait score system is a promising tool for assessing the walking ability

  4. The development and validation of a scoring system for shoulder injuries in rugby players.

    Science.gov (United States)

    Roberts, Simon Benedict; Funk, Lennard

    2013-09-01

    Shoulder injuries are relatively common among professional rugby players and result in a large proportion of days absent from training and competition. No instrument exists that is designed and validated to assess function or outcome following therapeutic interventions in rugby players sustaining shoulder injuries. The objective was to develop and validate an athlete-reported scoring system to assess shoulder function in rugby players following shoulder injuries. Potential items for the scoring system were identified by a literature review of shoulder-specific scoring systems (n=46), and by interviewing professional rugby players (n=38) and medical staff (n=12). Redundant and clinician-assessed items were excluded. A second set of interviews with rugby players (n=8) determined the frequency importance product (FIP) of potential items. The 20 items with the highest FIPs were selected for the provisional Rugby Shoulder Score (RSS) that was tested for internal consistency and reliability by administering to rugby players with stable shoulder injuries (n=11). The literature review and interviews identified 575 items, of which 105 items were neither clinician-assessed nor redundant. Twenty items with the highest FIPs were selected for the RSS. The RSS demonstrated excellent internal consistency (Cronbach's α=0.96) and reliability (intraclass correlation coefficient= 0.941, paired student t test p>0.05). A reliable athlete-reported scoring system for assessing shoulder injuries in rugby players has been developed that incorporates the most important factors for rugby players recovering from shoulder injuries. Further prospective testing of the instrument is being undertaken to determine its discriminative and evaluative functions and construct validity.

  5. Prognostic Gleason grade grouping: data based on the modified Gleason scoring system

    Science.gov (United States)

    Pierorazio, Phillip M.; Walsh, Patrick C.; Partin, Alan W.; Epstein, Jonathan I.

    2014-01-01

    Objective • To investigate pathological and short-term outcomes since the most recent Gleason system modifications by the International Society of Urological Pathology (ISUP) in an attempt to divide the current Gleason grading system into prognostically accurate Gleason grade groups. Patients and Methods • We queried the Johns Hopkins Radical Prostatectomy Database (1982–2011), approved by the institutional review board, for men undergoing radical prostatectomy (RP) without a tertiary pattern since 2004 and identified 7869 men. • Multivariable models were created using preoperative and postoperative variables; prognostic grade group (Gleason grade ≤6; 3 + 4; 4 + 3; 8; 9–10) was among the strongest predictors of biochemical recurrence-free (BFS) survival. Results • Significant differences were noted among the Gleason grade groups at biopsy; differences were noted in the race, PSA level, clinical stage, number of positive cores at biopsy and the maximum percentage of positive cores among the Gleason grade groups at RP. • With a median (range) follow-up of 2 (1–7) years, 5-year BFS rates for men with Gleason grade ≤6, 3 + 4, 4 + 3, 8 and 9–10 tumours at biopsy were 94.6, 82.7, 65.1, 63.1 and 34.5%, respectively (P ISUP modifications to the Gleason grading system for prostate carcinoma accurately categorize patients by pathological findings and short-term biochemical outcomes but, while retaining the essence of the Gleason system, there is a need for a change in its reporting to more closely reflect tumour behaviour. • We propose reporting Gleason grades, including prognostic grade groups which accurately reflect prognosis as follows: Gleason score ≤6 (prognostic grade group I); Gleason score 3+4=7 (prognostic grade group II); Gleason score 4+3=7 (prognostic grade group III); Gleason score 4+4=8 (prognostic grade group (IV); and Gleason score 9–10 (prognostic grade group (V). PMID:23464824

  6. Scoring ultrasound synovitis in rheumatoid arthritis: a EULAR-OMERACT ultrasound taskforce-Part 1: definition and development of a standardised, consensus-based scoring system.

    Science.gov (United States)

    D'Agostino, Maria-Antonietta; Terslev, Lene; Aegerter, Philippe; Backhaus, Marina; Balint, Peter; Bruyn, George A; Filippucci, Emilio; Grassi, Walter; Iagnocco, Annamaria; Jousse-Joulin, Sandrine; Kane, David; Naredo, Esperanza; Schmidt, Wolfgang; Szkudlarek, Marcin; Conaghan, Philip G; Wakefield, Richard J

    2017-01-01

    To develop a consensus-based ultrasound (US) definition and quantification system for synovitis in rheumatoid arthritis (RA). A multistep, iterative approach was used to: (1) evaluate the baseline agreement on defining and scoring synovitis according to the usual practice of different sonographers, using both grey-scale (GS) (synovial hypertrophy (SH) and effusion) and power Doppler (PD), by reading static images and scanning patients with RA and (2) evaluate the influence of both the definition and acquisition technique on reliability followed by a Delphi exercise to obtain consensus definitions for synovitis, elementary components and scoring system. Baseline reliability was highly variable but better for static than dynamic images that were directly acquired and immediately scored. Using static images, intrareader and inter-reader reliability for scoring PD were excellent for both binary and semiquantitative (SQ) grading but GS showed greater variability for both scoring systems (κ ranges: -0.05 to 1 and 0.59 to 0.92, respectively). In patient-based exercise, both intraobserver and interobserver reliability were variable and the mean κ coefficients did not reach 0.50 for any of the components. The second step resulted in refinement of the preliminary Outcome Measures in Rheumatology synovitis definition by including the presence of both hypoechoic SH and PD signal and the development of a SQ severity score, depending on both the amount of PD and the volume and appearance of SH. A multistep consensus-based process has produced a standardised US definition and quantification system for RA synovitis including combined and individual SH and PD components. Further evaluation is required to understand its performance before application in clinical trials.

  7. Hospital triage system for adult patients using an influenza-like illness scoring system during the 2009 pandemic--Mexico.

    Directory of Open Access Journals (Sweden)

    Eduardo Rodriguez-Noriega

    Full Text Available BACKGROUND: Pandemic influenza A (H1N1 virus emerged during 2009. To help clinicians triage adults with acute respiratory illness, a scoring system for influenza-like illness (ILI was implemented at Hospital Civil de Guadalajara, Mexico. METHODS: A medical history, laboratory and radiology results were collected on emergency room (ER patients with acute respiratory illness to calculate an ILI-score. Patients were evaluated for admission by their ILI-score and clinicians' assessment of risk for developing complications. Nasal and throat swabs were collected from intermediate and high-risk patients for influenza testing by RT-PCR. The disposition and ILI-score of those oseltamivir-treated versus untreated, clinical characteristics of 2009 pandemic influenza A (H1N1 patients versus test-negative patients were compared by Pearson's Chi(2, Fisher's Exact, and Wilcoxon rank-sum tests. RESULTS: Of 1840 ER patients, 230 were initially hospitalized (mean ILI-score = 15, and the rest were discharged, including 286 ambulatory patients given oseltamivir (median ILI-score = 11, and 1324 untreated (median ILI-score = 5. Fourteen (1% untreated patients returned, and 3 were hospitalized on oseltamivir (median ILI-score = 19. Of 371 patients tested by RT-PCR, 104 (28% had pandemic influenza and 42 (11% had seasonal influenza A detected. Twenty (91% of 22 imaged hospitalized pandemic influenza patients had bilateral infiltrates compared to 23 (38% of 61 imaged hospital test-negative patients (p<0.001. One patient with confirmed pandemic influenza presented 6 days after symptom onset, required mechanical ventilation, and died. CONCLUSIONS: The triaging system that used an ILI-score complimented clinicians' judgment of who needed oseltamivir and inpatient care and helped hospital staff manage a surge in demand for services.

  8. 76 FR 63640 - Public Housing Assessment System (PHAS): Proposed Physical Condition Interim Scoring Notice

    Science.gov (United States)

    2011-10-13

    ... physical inspection score will include an asterisk. Under section 7, ``scoring using weighted averages... asterisk (*) is added to the project score. The project score for properties with LT deficiencies will have... will include an asterisk. However, [[Page 63644

  9. Bender-gradual scoring system: performance of Brazilian and Peruvian children.

    Science.gov (United States)

    dos Santos, Acácia Aparecida Angeli; Noronha, Ana Paula Porto; Rueda, Fabián Javier Marín; Segovia, José Livia

    2014-06-01

    This is a transcultural study of a sample of Peruvian and Brazilian children using the Bender-Gradual Scoring System (B-SPG), which considers shape distortion as the only aspect to be analyzed, assuming that perceptual-motor maturity is independent of cultural context. The study verified that the scoring system has psychometric qualities such that it may be applied in another country. The sample consisted of 231 children, ages 6 to 10 yr., 108 from different districts of the province Lima in Peru, and 123 children from three states in Brazil. During test application, the figures were projected to children in groups. Scoring the protocols for errors was conducted by psychologists experienced in interpreting and correcting the Bender-SPG, who rigorously followed instructions in Portuguese and Spanish. The results obtained with Differential Item Functioning (DIF) analysis indicated that Figures 1 and 4 presented DIF, one favoring Brazilian children and the other Peruvian children. Thus, it was concluded that the overall scores did not favor either population and the Bender-SPG could be used to evaluate perceptual-motor maturity in both countries.

  10. An Inflammatory Polymorphisms Risk Scoring System for the Differentiation of Ischemic Stroke Subtypes

    Science.gov (United States)

    Muiño, Elena; Krupinski, Jurek; Carrera, Caty; Gallego-Fabrega, Cristina; Montaner, Joan; Fernández-Cadenas, Israel

    2015-01-01

    Inflammation has been associated with atherothrombotic stroke and recently with cardioembolic stroke. Different genetic risk factors have been specifically associated with the subtypes of ischemic stroke (cardioembolic, atherothrombotic, and lacunar). However, there are no studies that have generated genetic risk scores for the different subtypes of ischemic stroke using polymorphisms associated with inflammation. Methods. We have analyzed 68 polymorphisms of 30 inflammatory mediator genes in 2,685 subjects: 1,987 stroke cases and 698 controls. We generated a genetic scoring system with the most significant polymorphisms weighted by the odds ratio of every polymorphism and taken into consideration the stroke subtype. Results. Three polymorphisms, rs1205 (CRP gene), rs1800779, and rs2257073 (NOS3 gene), were associated with cardioembolic stroke (p value stroke subtype (p value: 0.001) and was replicated in an independent cohort (p value: 0.017). The subjects with the highest score presented a cardioembolic stroke in 92.2% of the cases (p value: 0.002). Conclusion. The genetics of inflammatory markers is more closely associated with cardioembolic strokes than with atherothrombotic or lacunar strokes. The genetic risk scoring system could be useful in the prediction and differentiation of ischemic stroke; however, it might be specific to particular ischemic stroke subtypes. PMID:26355258

  11. Do the urolithiasis scoring systems predict the success of percutaneous nephrolithotomy in cases with anatomical abnormalities?

    Science.gov (United States)

    Kocaaslan, Ramazan; Tepeler, Abdulkadir; Buldu, Ibrahim; Tosun, Muhammed; Utangac, Mehmet Mazhar; Karakan, Tolga; Ozyuvali, Ekrem; Hatipoglu, Namik Kemal; Unsal, Ali; Sarica, Kemal

    2016-07-12

    The objective of this study is to assess the utility of the Guy, S.T.O.N.E., and CROES nephrolithometry scoring systems (SS), and compare the capability of each system to predict percutaneous nephrolithotomy (PNL) outcome in patients with anatomical abnormalities. We retrospectively collected medical records of patients with anatomical abnormalities who underwent PNL for the treatment of renal calculi by experienced surgical teams in four referral centers. All of the patients were graded by a single observer from each department based on preoperative computed tomography images using each SS. Patient demographics and outcomes were compared according to the complexity of the procedure as graded by each scoring system. A total of 137 cases with anatomical abnormalities [horseshoe kidney (n = 46), malrotation (n = 33), kypho and/or scoliosis (n = 31) and ectopic kidney (n = 27)] were assessed retrospectively. The mean stone burden, number, and density were 708.5 mm(2), 1.7, and 791.8 HU, respectively. The mean procedure, fluoroscopy, and hospitalization times were 75.2 ± 35.3 min, 133.4 ± 92.3 s, and 3.5 ± 2.1 days, respectively. Stone-free status was achieved in 106 cases (77.4 %). A total of 17 (13.6 %) complications occurred postoperatively. The mean scores were 2.7, 7.2, and 219.1, for the Guy, S.T.O.N.E., and CROES systems, respectively. CROES score was the independent predictor of PNL success in cases with anatomical abnormalities [p: 0.001, OR 1.01, (95 % CI 1005-1021)]. The CROES scoring system is well correlated with the success of PNL in cases with anatomical abnormalities; the S.T.O.N.E. and Guy scoring systems failed to predict the outcomes of PNL in this specific patient population.

  12. Comparison Of Digital Radiographic Units

    Science.gov (United States)

    Wang, Yen

    1986-06-01

    A total PACS will be inevitable for radiology practice within several years. To achieve a total PACS for radiology, a satisfactory digital radiographic unit is required, because approximately 65% of digital data for PACS comes from digital radiographs. There are several possibilities for producing digital radiographs, and 3 - 4 companies have been marketing digital radiographic devices. Some data regarding the digital radiographic units on the market are compared. It will aid in assessing the current status and availability of this aspect of development, as well as providing a summary of further development of digital radiographic technology.

  13. Predicting hospital-acquired infections by scoring system with simple parameters.

    Directory of Open Access Journals (Sweden)

    Ying-Jui Chang

    Full Text Available BACKGROUND: Hospital-acquired infections (HAI are associated with increased attributable morbidity, mortality, prolonged hospitalization, and economic costs. A simple, reliable prediction model for HAI has great clinical relevance. The objective of this study is to develop a scoring system to predict HAI that was derived from Logistic Regression (LR and validated by Artificial Neural Networks (ANN simultaneously. METHODOLOGY/PRINCIPAL FINDINGS: A total of 476 patients from all the 806 HAI inpatients were included for the study between 2004 and 2005. A sample of 1,376 non-HAI inpatients was randomly drawn from all the admitted patients in the same period of time as the control group. External validation of 2,500 patients was abstracted from another academic teaching center. Sixteen variables were extracted from the Electronic Health Records (EHR and fed into ANN and LR models. With stepwise selection, the following seven variables were identified by LR models as statistically significant: Foley catheterization, central venous catheterization, arterial line, nasogastric tube, hemodialysis, stress ulcer prophylaxes and systemic glucocorticosteroids. Both ANN and LR models displayed excellent discrimination (area under the receiver operating characteristic curve [AUC]: 0.964 versus 0.969, p = 0.507 to identify infection in internal validation. During external validation, high AUC was obtained from both models (AUC: 0.850 versus 0.870, p = 0.447. The scoring system also performed extremely well in the internal (AUC: 0.965 and external (AUC: 0.871 validations. CONCLUSIONS: We developed a scoring system to predict HAI with simple parameters validated with ANN and LR models. Armed with this scoring system, infectious disease specialists can more efficiently identify patients at high risk for HAI during hospitalization. Further, using parameters either by observation of medical devices used or data obtained from EHR also provided good prediction

  14. Prognostic scoring systems for mortality in intensive care units--the APACHE model.

    Science.gov (United States)

    Niewiński, Grzegorz; Starczewska, Małgorzata; Kański, Andrzej

    2014-01-01

    The APACHE (Acute Physiology and Chronic Health Evaluation) scoring system is time consuming. The mean time for introducing a patient's data to APACHE IV is 37.3 min. Nevertheless, statisticians have known for years that the higher the number of variables the mathematical model describes, the more accurate the model. Because of the necessity of gathering data over a 24-hour period and of determining one cause for ICU admission, the system is troublesome and prone to mistakes. The evolution of the APACHE scoring system is an example of unfulfilled hopes for accurately estimating the risk of death for patients admitted to the ICU; satisfactory prognostic effects resulting from the use of APACHE II and III have been recently studied in patients undergoing liver transplantations. Because no increase in the predictive properties of successive versions has been observed, the search for other solutions continues. The APACHE IV scoring system is helpful; however, its use without prepared spreadsheets is almost impractical. Therefore, although many years have passed since its original publication, APACHE II or its extension APACHE III is currently used in clinical practice.

  15. Comparison of Existing Clinical Scoring Systems in Predicting Severity and Prognoses of Hyperlipidemic Acute Pancreatitis in Chinese Patients

    OpenAIRE

    Qiu, Lei; Sun, Rui Qing; Jia, Rong Rong; Ma, Xiu Ying; Cheng, Li; Tang, Mao Chun; Zhao, Yan

    2015-01-01

    Abstract It is important to identify the severity of acute pancreatitis (AP) in the early course of the disease. Clinical scoring systems may be helpful to predict the prognosis of patients with early AP; however, few analysts have forecast the accuracy of scoring systems for the prognosis in hyperlipidemic acute pancreatitis (HLAP). The purpose of this study was to summarize the clinical characteristics of HLAP and compare the accuracy of conventional scoring systems in predicting the progno...

  16. Combination of European System for Cardiac Operative Risk Evaluation (EuroSCORE) and Cardiac Surgery Score (CASUS) to Improve Outcome Prediction in Cardiac Surgery.

    Science.gov (United States)

    Doerr, Fabian; Heldwein, Matthias B; Bayer, Ole; Sabashnikov, Anton; Weymann, Alexander; Dohmen, Pascal M; Wahlers, Thorsten; Hekmat, Khosro

    2015-08-17

    BACKGROUND We hypothesized that the combination of a preoperative and a postoperative scoring system would improve the accuracy of mortality prediction and therefore combined the preoperative 'additive EuroSCORE' (European system for cardiac operative risk evaluation) with the postoperative 'additive CASUS' (Cardiac Surgery Score) to form the 'modified CASUS'. MATERIAL AND METHODS We included all consecutive adult patients after cardiac surgery during January 2007 and December 2010 in our prospective study. Our single-centre study was conducted in a German general referral university hospital. The original additive and the 'modified CASUS' were tested using calibration and discrimination statistics. We compared the area under the curve (AUC) of the receiver characteristic curves (ROC) by DeLong's method and calculated overall correct classification (OCC) values. RESULTS The mean age among the total of 5207 patients was 67.2 ± 10.9 years. Whilst the ICU mortality was 5.9% we observed a mean length of ICU stay of 4.6 ± 7.0 days. Both models demonstrated excellent discriminatory power (mean AUC of 'modified CASUS': ≥ 0.929; 'additive CASUS': ≥ 0.920), with no significant differences according to DeLong. Neither model showed a significant p-value (cardiac surgery by combining a preoperative and a postoperative scoring system. A separate calculation of the two individual elements is therefore recommended.

  17. Retrospective Evaluation of New Chinese Diagnostic Scoring System for Disseminated Intravascular Coagulation.

    Directory of Open Access Journals (Sweden)

    Manzhi Wang

    Full Text Available To retrospectively validate the new Chinese DIC scoring system (CDSS.This study retrospectively collected the information of 619 patients (371 cases with non-hematologic malignancies, 248 cases with hematologic malignancies who suspected of DIC in Wuhan Union Hospital during 2013-4 to 2014-6. We validated CDSS by comparing it with three leading scoring systems, from International Society on Thrombosis and Haemostasis (ISTH, Japanese Association for Acute Medicine (JAAM and Japanese Ministry of Health and Welfare (JMHW, and evaluated its prognostic value by 28 days mortality, APACHE II and SOFA score.In non-hematologic malignancies, CDSS was more specific than JAAM (72.55% vs. 50.49%, p<0.05 and more sensitive than ISTH (77.07% vs. 62.03%, p<0.05. In hematologic malignancies, the area under the ROC curve of CDSS was larger than ISTH and JMHW (0.933 vs. 0.889, p<0.01 with ISTH, 0.944 vs. 0.845, p<0.01 with JMHW. In addition, the 28-day mortality rate, SOFA scores, APACHE II scores of DIC patients diagnosed by CDSS were significantly greater than non-DIC (P <0.05.We are the first group to propose CDSS. It emphasized the values of the clinical manifestations, the rapidly declining platelet count, APTT in the diagnosis of DIC and used D-dimer as the fibrin-related maker. DIC with hematological malignancies was treated as a special part. In this study we can see that CDSS displayed an acceptable property for the diagnosis of DIC with appropriate sensitivity and specificity, and also had a good prognostic value for DIC patients.

  18. Comparison of scoring systems for nonvariceal upper gastrointestinal bleeding: a multicenter prospective cohort study.

    Science.gov (United States)

    Yang, Hae Min; Jeon, Seong Woo; Jung, Jin Tae; Lee, Dong Wook; Ha, Chang Yoon; Park, Kyung Sik; Lee, Si Hyung; Yang, Chang Heon; Park, Jun Hyung; Park, Youn Sun

    2016-01-01

    The Glasgow-Blatchford score (GBS) and Rockall score (RS) are widely used to assess risk in patients with upper gastrointestinal bleeding (UGIB). We compared both scoring systems and evaluated their clinical usefulness. Between February 2011 and December 2013, 1584 patients with nonvariceal UGIB were included in the study. A prospective study was conducted to compare the performance of the GBS, pre-RS, and full RS. We compared the performance of these scores using receiver operating characteristic curves. For prediction of the need for hospital-based intervention, the GBS was similar to the full RS (area under the receiver operating characteristic curves [AUROC] 0.705 vs 0.727; P = 0.282) and superior to the pre-RS (AUROC 0.705 vs 0.601; P < 0.0001). In predicting death, the full RS was superior to the GBS (AUROC 0.758 vs 0.644; P = 0.0006) and similar to the pre-RS (AUROC 0.758 vs 0.754; P = 0.869). In predicting rebleeding, the full RS was superior to both GBS (AUROC 0.642 vs 0.585; P = 0.031) and pre-RS (AUROC 0.642 vs 0.593; P = 0.0003). Of 1584 patients, 13 (0.8%) scored 0 on the GBS. Therapeutic intervention was not performed in any of these patients. The GBS is more useful than the pre-RS for predicting the need for hospital-based intervention. A cutoff value of 0 for low-risk patients who might be suitable for outpatient management is useful. The full RS is helpful in predicting death. None of the systems accurately predict rebleeding with a low AUROC. ( cris.nih.go.kr/KCT0000514). © 2015 Journal of Gastroenterology and Hepatology Foundation and Wiley Publishing Asia Pty Ltd.

  19. A Score Function for Optimizing the Cycle-Life of Battery-Powered Embedded Systems

    DEFF Research Database (Denmark)

    Wognsen, Erik Ramsgaard; Haverkort, Boudewijn; Jongerden, Marijn

    2015-01-01

    An ever increasing share of embedded systems is powered by rechargeable batteries. These batteries deteriorate with the number of charge/discharge cycles they are subjected to, the so-called cycle life. In this paper, we propose the wear score function to compare and evaluate the relative impact...... of usage (charge and discharge) profiles on cycle life. The wear score function can not only be used to rank different usage profiles, these rankings can also be used as a criterion for optimizing the overall lifetime of a battery-powered system. We perform such an optimization on a nano-satellite case...... checking and reinforcement learning to synthesize near-optimal scheduling strategies subject to possible hard timing-constaints. We use this to study the trade-off between optimal short-term dynamic payload selection and the operational life of the satellite....

  20. A Clinical Scoring System to Predict the Development of Bronchopulmonary Dysplasia

    OpenAIRE

    Gürsoy, Tuğba; Hayran, Mutlu; Derin, Hatice; Ovalı, Fahri

    2015-01-01

    A Clinical Scoring System to Predict the Development of Bronchopulmonary Dysplasia Tugba Gursoy, MD1 Mutlu Hayran, MD2 Hatice Derin, MD3 Fahri Ovali, MD3 1Department of Neonatology, School of Medicine, KOC University, Istanbul, Turkey 2Department of Preventive Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey 3Department of Pediatrics, Zeynep Kamil Maternity and Children’s Research and Training Hospital, Istanbul, Turkey 4Department of Neonatology,...

  1. Evaluation of day one embryo quality and IVF outcome – a comparison of two scoring systems

    Directory of Open Access Journals (Sweden)

    Svobodova Magda

    2009-02-01

    Full Text Available Abstract Background The aim of our retrospective study was to compare the clinical usefulness of two non-invasive embryo scoring systems based either on a simplified pronuclear morphology of the zygote or on early cleavage rate, as well as their combination, for the selection of embryos with the best implantation potential in embryo transfer (ET. Methods Over a period of five years, the quality of 2708 embryos from 364 IVF cycles in women under the age of 39 years was assessed using these scoring systems in a university assisted reproduction centre. ET was always performed on day 3 of cultivation. The outcome of ETs of 702 embryos scored in the respective systems or their combination was retrospectively analyzed in terms of biochemical (bPR and clinical pregnancy rates (cPR and implantation rate (IR. Mann-Whitney U test and t-test for differences between relative values were used, p Results There was no difference in outcome parameters in 109 cycles where only Pattern "0" zygotes, according to our simplified pronuclear morphology classification, were transferred and 140 cycles where only "other" pattern zygotes were transferred, regardless of their cleavage rate. On the contrary, significantly greater cPR and IR (p = 0.003 and p = 0.006, respectively were achieved in 120 cycles where only early cleavage (EC embryos were transferred compared with 152 cycles where only non early cleavage (NEC embryos were transferred regardless of their pronuclear morphology. The best outcome in terms of cPR (56% and IR (43% was found in 50 cycles when Pattern "0" and EC embryos only were used for transfer. Conclusion The results indicate that early cleavage is a better independent marker of implantation potential than zygote morphology. The best outcome can be achieved if both embryo scoring systems are used jointly and the embryo is classified as EC and Pattern "0".

  2. Prediction of Carotid Artery Stenosis in Candidates of Coronary Artery Bypasses Surgery by A Scoring System.

    OpenAIRE

    Sh. Shirani; Shakiba, M.; M. Soleymanzadeh

    2007-01-01

    Background and Objective: Up to 9% of coronary ar-tery bypass grafting (CABG) patients suffer from stroke after the surgery. Although post CABG stroke has multiple etiologies, stenosis of cervical carotid arteries is an important factor. Many studies have evaluated carotid artery stenosis in CABG. Carotid stenosis and its related factors and a new scoring sys-tem for selection of CABG patients for Doppler study are introduced. Materials and methods: 1721 consecutive cases of non-urgent CABG w...

  3. Prediction of outcome in adults with severe falciparum malaria: a new scoring system

    Directory of Open Access Journals (Sweden)

    Mishra Rajalaxmi

    2007-02-01

    Full Text Available Abstract Background Mortality of falciparum malaria is related to the presence of severe complications. However, no scoring system is available to predict outcome of these patients. The aim of this paper was to devise a simple and reliable malaria prognosis score (MPS to predict the outcome of adults with severe malaria. Methods All slide-positive severe falciparum malaria patients admitted to Ispat General Hospital were studied. Eight clinical parameters that may potentially differentiate or influence the outcome were identified to predict recovery or death Results Of 248 severe malaria cases, 35 died. There were 212 adults (34 deaths and 36 children (one death. The malaria score for adults was (MSA = 1(severe anaemia + 2 (acute renal failure + 3(Respiratory distress +4 (cerebral malaria. The MSA ranges from 0 to 10. The mortality was 2% for MSA 0 – 2; 10% for MSA 3–4, 40% for MSA 5–6 and 90% for MSA 7 or more. The sensitivity is 89.9% and positive predictive value is 94.1% when 5 is taken as the cut off value. Conclusion MSA is a simple and sensitive predictor. It can be administered rapidly and repeatedly to prognosticate the outcome of severe malaria in adults. It can help the treating doctor to assess the patient as well as to communicate to the relatives of the patients about prognosis. The score needs revalidation in other geographical areas.

  4. Intelligibility in microbial complex systems: Wittgenstein and the score of life.

    Science.gov (United States)

    Baquero, Fernando; Moya, Andrés

    2012-01-01

    Knowledge in microbiology is reaching an extreme level of diversification and complexity, which paradoxically results in a strong reduction in the intelligibility of microbial life. In our days, the "score of life" metaphor is more accurate to express the complexity of living systems than the classic "book of life." Music and life can be represented at lower hierarchical levels by music scores and genomic sequences, and such representations have a generational influence in the reproduction of music and life. If music can be considered as a representation of life, such representation remains as unthinkable as life itself. The analysis of scores and genomic sequences might provide mechanistic, phylogenetic, and evolutionary insights into music and life, but not about their real dynamics and nature, which is still maintained unthinkable, as was proposed by Wittgenstein. As complex systems, life or music is composed by thinkable and only showable parts, and a strategy of half-thinking, half-seeing is needed to expand knowledge. Complex models for complex systems, based on experiences on trans-hierarchical integrations, should be developed in order to provide a mixture of legibility and imageability of biological processes, which should lead to higher levels of intelligibility of microbial life.

  5. Keratoconus Diagnosis with An Optical Coherence Tomography-Based Pachymetric Scoring System

    Science.gov (United States)

    Qin, Bing; Chen, Shihao; Brass, Robert; Li, Yan; Tang, Maolong; Zhang, Xinbo; Wang, Xiaoyu; Wang, Qinmei; Huang, David

    2014-01-01

    PURPOSE To develop an optical coherence tomography (OCT) pachymetry map based keratoconus risk scoring system. SETTING This multi-center study was conducted in Doheny Eye Institute, University of Southern California (Los Angeles, CA, USA), Department of Ophthalmology, Affiliated Eye Hospital of Wenzhou Medical College (Wenzhou, China), and Brass Eye Center (New York, NY, USA). DESIGN Prospective cross-sectional observational study. METHODS A Fourier-domain OCT was used to acquire corneal pachymetry map in normal and keratoconus subjects. Pachymetric variables were: minimum, minimum-median, superior - inferior (S-I), superonasal - inferotemporal (SN-IT), and the vertical location of the thinnest cornea (Ymin). A logistic regression formula and a scoring system were developed based on these variables. Keratoconus diagnostic accuracy was measured by the area under the receiver operating characteristic curve (AROC). RESULTS One hundred thirty-three eyes from 67 normal subjects, 84 eyes from 52 keratoconus subjects were recruited. The keratoconus logistic regression formula = 0.543 × minimum + 0.541 × (S-I) − 0.886 × (SN-IT) + 0.886 × (minimum-median) + 0.0198 × Ymin. The formula gave better diagnostic power with AROC than the best single variable (formula = 0.975, minimum = 0.942, P keratoconus risk score (0.949) was similar to that of the formula (P = 0.08). CONCLUSION The OCT corneal pachymetry map based logistic regression formula and the keratoconus risk scoring system provided high accuracy in keratoconus detection. These normal methods may be useful in keratoconus screening. PMID:24427794

  6. Inter-rater agreement in radiographic canine hip dysplasia evaluation.

    Science.gov (United States)

    Geissbühler, U; Drazovic, S; Lang, J; Howard, J

    2017-04-08

    The objective was to determine the agreement between scrutineers assessing canine hip dysplasia (CHD) within and between the Fédération Cynologique Internationale (FCI) and the Swiss (CH) grading schemes, and between first-opinion and second-opinion scrutineers using the CH scheme. 62 scrutineers, participating in a quality assessment programme, were asked to evaluate 12 sets of hip radiographs. All radiographs had been previously evaluated by a first-opinion and 7 by both a first-opinion and second-opinion scrutineers using the CH scheme. Inter-rater agreement (κ) and intraclass correlation (ICC) were evaluated for the Norberg angle and dysplasia grades, and ICC for the numerical CH scores. The κ and ICC were 0.290 and 0.471 for Norberg angles, 0.372 and 0.577 for FCI grades, and 0.417 and 0.567 for CH grades, respectively. The ICC for CH scores was 0.614. Total agreement for grades was found in a single case. For radiographs evaluated using both schemes, raters gave the same grade in 441 cases, a lower FCI than CH grade in 78 cases and a lower CH than FCI grade in 32 cases. Intrarater agreement between grades of the two schemes was 0.786. Agreement between the first-opinion and second-opinion scrutineers was 0.250 for Norberg angles and -0.286 for CH grades. Although agreement between the two schemes was good, agreement between scrutineers using either scheme was only fair to moderate, and no agreement was found between first-opinion and second-opinion scrutineers. Application of the FCI and CH schemes may impact the incidence of hip dysplasia in populations with both severe and moderate dysplasia, but is unlikely to impact populations with only mild dysplasia. The CH system of first-opinion and second-opinion examinations should be re-evaluated. British Veterinary Association.

  7. Red cell distribution width and neurological scoring systems in acute stroke patients

    Directory of Open Access Journals (Sweden)

    Kara H

    2015-03-01

    Full Text Available Hasan Kara,1 Selim Degirmenci,1 Aysegul Bayir,1 Ahmet Ak,1 Murat Akinci,1 Ali Dogru,1 Fikret Akyurek,2 Seyit Ali Kayis3 1Department of Emergency Medicine, Faculty of Medicine, Selcuk University, Konya, Turkey; 2Department of Biochemistry, Faculty of Medicine, Selcuk University, Konya, Turkey; 3Department of Biostatistics, Faculty of Medicine, Karabuk University, Karabuk, Turkey Objectives: The purpose of the present study was to evaluate the association between the red blood cell distribution width (RDW and the Glasgow Coma Scale (GCS, Canadian Neurological Scale (CNS, and National Institutes of Health Stroke Scale (NIHSS scores in patients who had acute ischemic stroke. Methods: This prospective observational cohort study included 88 patients who have had acute ischemic stroke and a control group of 40 patients who were evaluated in the Emergency Department for disorders other than acute ischemic stroke. All subjects had RDW determined, and stroke patients had scoring with the GCS, CNS, and NIHSS scores. The GCS, CNS, and NIHSS scores of the patients were rated as mild, moderate, or severe and compared with RDW. Results: Stroke patients had significantly higher median RDW than control subjects. The median RDW values were significantly elevated in patients who had more severe rather than milder strokes rated with all three scoring systems (GCS, CNS, and NIHSS. The median RDW values were significantly elevated for patients who had moderate rather than mild strokes rated by GCS and CNS and for patients who had severe rather than mild strokes rated by NIHSS. The area under the receiver operating characteristic curve was 0.760 (95% confidence interval, 0.676–0.844. Separation of stroke patients and control groups was optimal with RDW 14% (sensitivity, 71.6%; specificity, 67.5%; accuracy, 70.3%. Conclusion: In stroke patients who have symptoms <24 hours, the RDW may be useful in predicting the severity and functional outcomes of the stroke

  8. Validity of Outcome Prediction Scoring Systems in Korean Patients with Severe Adult Respiratory Distress Syndrome Receiving Extracorporeal Membrane Oxygenation Therapy.

    Science.gov (United States)

    Lee, Seunghyun; Yeo, Hye Ju; Yoon, Seong Hoon; Lee, Seung Eun; Cho, Woo Hyun; Jeon, Doo Soo; Kim, Yun Seong; Son, Bong Soo; Kim, Do Hyung

    2016-06-01

    Recently, several prognostic scoring systems for patients with severe acute respiratory distress syndrome (ARDS) requiring extracorporeal membrane oxygenation (ECMO) have been published. The aim of this study was to validate the established scoring systems for outcome prediction in Korean patients. We retrospectively reviewed the data of 50 patients on ECMO therapy in our center from 2012 to 2014. A calculation of outcome prediction scoring tools was performed and the comparison across various models was conducted. In our study, the overall hospital survival was 46% and successful weaning rate was 58%. The Predicting Death for Severe ARDS on V-V ECMO (PRESERVE) score showed good discrimination of mortality prediction for patients on ECMO with AUC of 0.80 (95% CI 0.66-0.90). The respiratory extracorporeal membrane oxygenation survival prediction (RESP) score and simplified acute physiology score (SAPS) II score also showed fair prediction ability with AUC of 0.79 (95% CI 0.65-0.89) and AUC of 0.78 (95% CI 0.64-0.88), respectively. However, the ECMOnet score failed to predict mortality with AUC of 0.51 (95% CI 0.37-0.66). When evaluating the predictive accuracy according to optimal cut-off point of each scoring system, RESP score had a best specificity of 91.3% and 66.7% of sensitivity, respectively. This study supports the clinical usefulness of the prognostic scoring tools for severe ARDS with ECMO therapy when applying to the Korean patients receiving ECMO.

  9. An expert system based on Fisher score and LS-SVM for cardiac arrhythmia diagnosis.

    Science.gov (United States)

    Yılmaz, Ersen

    2013-01-01

    An expert system having two stages is proposed for cardiac arrhythmia diagnosis. In the first stage, Fisher score is used for feature selection to reduce the feature space dimension of a data set. The second stage is classification stage in which least squares support vector machines classifier is performed by using the feature subset selected in the first stage to diagnose cardiac arrhythmia. Performance of the proposed expert system is evaluated by using an arrhythmia data set which is taken from UCI machine learning repository.

  10. Auto-score system to optimize OPC recipe parameters using genetic algorithm

    Science.gov (United States)

    Cao, Liang; Asthana, Abhishek; Ning, Guoxiang; Feng, Jui-Hsuan; Zhang, Jie; Wilkinson, William

    2016-10-01

    The ever increasing pattern densities and design complexities make the tuning of optical proximity correction (OPC) recipes more challenging. There are various recipe tuning methods to meet the challenge, such as genetic algorithm (GA), simulated annealing, and OPC software vendor provided recipe optimizers. However, these methodologies usually only consider edge placement errors (EPEs). Therefore, these techniques may not provide adequate freedom to solve unique problems at special geometries, for example bridge, pinch, and process variation band related violations at complex 2D geometries. This paper introduces a general methodology to fix specific problems identified at the OPC verification stage and demonstrates its successful application to two test-cases. The algorithm and method of the automatic scoring system is introduced in order to identify and prioritize the problems that need to be fixed based on severity, with the POR recipe score used as the baseline reference. A GA optimizer, whose objective function is based on the scoring system, is applied to tune the OPC recipe parameters to optimum condition after generations of selections. The GA optimized recipe would be compared to existing recipe to quantify the amount of improvement. This technique was subsequently applied to eliminate certain chronic OPC verification problems which were encountered in the past. Though the benefits have been demonstrated for limited test cases, employing this technique more universally will enable users to efficiently reduce the number of OPC verification violations and provide robust OPC solutions.

  11. Recommendations for the use of chemoembolization in patients with hepatocellular carcinoma: Usefulness of scoring system?

    Science.gov (United States)

    Adhoute, Xavier; Penaranda, Guillaume; Castellani, Paul; Perrier, Herve; Bourliere, Marc

    2015-01-01

    Several hepatocellular carcinoma (HCC) staging systems have been established, and a variety of country-specific treatment strategies are also proposed. The barcelona - clinic liver cancer (BCLC) system is the most widely used in Europe. The Hong Kong liver Cancer is a new prognostic staging system; it might become the reference system in Asia. Transarterial chemoembolization (TACE) is the most widely used treatment for HCC worldwide; but it showed a benefit only for intermediate stage HCC (BCLC B), and there is still no consensus concerning treatment methods and treatment strategies. In view of the highly diverse nature of HCC and practices, a scoring system designed to assist with decision making before the first TACE is performed or prior to repeating the procedure would be highly useful. PMID:25848475

  12. Rating the methodological quality in systematic reviews of studies on measurement properties: a scoring system for the COSMIN checklist

    OpenAIRE

    Terwee, C. B.; Mokkink, L.B.; Knol, D L; Ostelo, R. W. J. G.; Bouter, L. M.; Vet, de, E.

    2011-01-01

    Background The COSMIN checklist is a standardized tool for assessing the methodological quality of studies on measurement properties. It contains 9 boxes, each dealing with one measurement property, with 5–18 items per box about design aspects and statistical methods. Our aim was to develop a scoring system for the COSMIN checklist to calculate quality scores per measurement property when using the checklist in systematic reviews of measurement properties. Methods The scoring system was devel...

  13. Early warning scores: a sign of deterioration in patients and systems

    LENUS (Irish Health Repository)

    Fox, A

    2015-02-01

    The early warning score is a decision-making tool that has a simple design, yet its implementation in healthcare organisations is proving complex. This article reports the results of a survey that evaluated the nurses’ experiences of using the NEWS (National Early Warning Score) in an acute hospital in Ireland. Staff reported that the NEWS was easy to use, did not increase workload and enhanced their ability to identify deteriorating patients. However, they also identified problems related to doctors’ delayed response times, doctors lack of training in the use of the tool, and a failure by doctors to modify parameters for patients with chronic conditions. NEWS enhances nurses’ role in early detection of patient deterioration but delays in response times by doctors, exposes systematic flaws in healthcare. This suggests that it is not only an indicator of patient deterioration but also of deteriorating healthcare systems.

  14. A visual system for scoring body condition of Asian elephants (Elephas maximus).

    Science.gov (United States)

    Wijeyamohan, Shanmugasundaram; Treiber, Kibby; Schmitt, Dennis; Santiapillai, Charles

    2015-01-01

    A body condition score (BCS) may provide information on the health or production potential of an animal; it may also reflect the suitability of the environment to maintain an animal population. Thus assessing the BCS of Asian elephants is important for their management. There is a need for a robust BCS applicable to both wild and captive elephants of all age categories based on the minimum and maximum possible subcutaneous body fat and muscle deposits. The visually based system for scoring the body condition of elephants presented here satisfies these criteria and is quick, inexpensive, non-invasive and user-friendly in the field. The BCS scale correlates (P < 0.05) with morphometric indices such as weight, girth, and skin fold measures.

  15. A new scoring system in Cystic Fibrosis: statistical tools for database analysis - a preliminary report.

    Science.gov (United States)

    Hafen, G M; Hurst, C; Yearwood, J; Smith, J; Dzalilov, Z; Robinson, P J

    2008-10-05

    Cystic fibrosis is the most common fatal genetic disorder in the Caucasian population. Scoring systems for assessment of Cystic fibrosis disease severity have been used for almost 50 years, without being adapted to the milder phenotype of the disease in the 21st century. The aim of this current project is to develop a new scoring system using a database and employing various statistical tools. This study protocol reports the development of the statistical tools in order to create such a scoring system. The evaluation is based on the Cystic Fibrosis database from the cohort at the Royal Children's Hospital in Melbourne. Initially, unsupervised clustering of the all data records was performed using a range of clustering algorithms. In particular incremental clustering algorithms were used. The clusters obtained were characterised using rules from decision trees and the results examined by clinicians. In order to obtain a clearer definition of classes expert opinion of each individual's clinical severity was sought. After data preparation including expert-opinion of an individual's clinical severity on a 3 point-scale (mild, moderate and severe disease), two multivariate techniques were used throughout the analysis to establish a method that would have a better success in feature selection and model derivation: 'Canonical Analysis of Principal Coordinates' and 'Linear Discriminant Analysis'. A 3-step procedure was performed with (1) selection of features, (2) extracting 5 severity classes out of a 3 severity class as defined per expert-opinion and (3) establishment of calibration datasets. (1) Feature selection: CAP has a more effective "modelling" focus than DA.(2) Extraction of 5 severity classes: after variables were identified as important in discriminating contiguous CF severity groups on the 3-point scale as mild/moderate and moderate/severe, Discriminant Function (DF) was used to determine the new groups mild, intermediate moderate, moderate, intermediate

  16. A new scoring system in Cystic Fibrosis: statistical tools for database analysis – a preliminary report

    Science.gov (United States)

    Hafen, GM; Hurst, C; Yearwood, J; Smith, J; Dzalilov, Z; Robinson, PJ

    2008-01-01

    Background Cystic fibrosis is the most common fatal genetic disorder in the Caucasian population. Scoring systems for assessment of Cystic fibrosis disease severity have been used for almost 50 years, without being adapted to the milder phenotype of the disease in the 21st century. The aim of this current project is to develop a new scoring system using a database and employing various statistical tools. This study protocol reports the development of the statistical tools in order to create such a scoring system. Methods The evaluation is based on the Cystic Fibrosis database from the cohort at the Royal Children's Hospital in Melbourne. Initially, unsupervised clustering of the all data records was performed using a range of clustering algorithms. In particular incremental clustering algorithms were used. The clusters obtained were characterised using rules from decision trees and the results examined by clinicians. In order to obtain a clearer definition of classes expert opinion of each individual's clinical severity was sought. After data preparation including expert-opinion of an individual's clinical severity on a 3 point-scale (mild, moderate and severe disease), two multivariate techniques were used throughout the analysis to establish a method that would have a better success in feature selection and model derivation: 'Canonical Analysis of Principal Coordinates' and 'Linear Discriminant Analysis'. A 3-step procedure was performed with (1) selection of features, (2) extracting 5 severity classes out of a 3 severity class as defined per expert-opinion and (3) establishment of calibration datasets. Results (1) Feature selection: CAP has a more effective "modelling" focus than DA. (2) Extraction of 5 severity classes: after variables were identified as important in discriminating contiguous CF severity groups on the 3-point scale as mild/moderate and moderate/severe, Discriminant Function (DF) was used to determine the new groups mild, intermediate moderate

  17. A new scoring system in Cystic Fibrosis: statistical tools for database analysis – a preliminary report

    Directory of Open Access Journals (Sweden)

    Yearwood J

    2008-10-01

    Full Text Available Abstract Background Cystic fibrosis is the most common fatal genetic disorder in the Caucasian population. Scoring systems for assessment of Cystic fibrosis disease severity have been used for almost 50 years, without being adapted to the milder phenotype of the disease in the 21st century. The aim of this current project is to develop a new scoring system using a database and employing various statistical tools. This study protocol reports the development of the statistical tools in order to create such a scoring system. Methods The evaluation is based on the Cystic Fibrosis database from the cohort at the Royal Children's Hospital in Melbourne. Initially, unsupervised clustering of the all data records was performed using a range of clustering algorithms. In particular incremental clustering algorithms were used. The clusters obtained were characterised using rules from decision trees and the results examined by clinicians. In order to obtain a clearer definition of classes expert opinion of each individual's clinical severity was sought. After data preparation including expert-opinion of an individual's clinical severity on a 3 point-scale (mild, moderate and severe disease, two multivariate techniques were used throughout the analysis to establish a method that would have a better success in feature selection and model derivation: 'Canonical Analysis of Principal Coordinates' and 'Linear Discriminant Analysis'. A 3-step procedure was performed with (1 selection of features, (2 extracting 5 severity classes out of a 3 severity class as defined per expert-opinion and (3 establishment of calibration datasets. Results (1 Feature selection: CAP has a more effective "modelling" focus than DA. (2 Extraction of 5 severity classes: after variables were identified as important in discriminating contiguous CF severity groups on the 3-point scale as mild/moderate and moderate/severe, Discriminant Function (DF was used to determine the new groups mild

  18. The generic impact scoring system (GISS): a standardized tool to quantify the impacts of alien species.

    Science.gov (United States)

    Nentwig, Wolfgang; Bacher, Sven; Pyšek, Petr; Vilà, Montserrat; Kumschick, Sabrina

    2016-05-01

    Alien species can exert negative environmental and socio-economic impacts. Therefore, administrations from different sectors are trying to prevent further introductions, stop the spread of established species, and apply or develop programs to mitigate their impact, to contain the most harmful species, or to eradicate them if possible. Often it is not clear which of the numerous alien species are most important in terms of damage, and therefore, impact scoring systems have been developed to allow a comparison and thus prioritization of species. Here, we present the generic impact scoring system (GISS), which relies on published evidence of environmental and socio-economic impact of alien species. We developed a system of 12 impact categories, for environmental and socio-economic impact, comprising all kinds of impacts that an alien species may exert. In each category, the intensity of impact is quantified by a six-level scale ranging from 0 (no impact detectable) to 5 (the highest impact possible). Such an approach, where impacts are grouped based on mechanisms for environmental impacts and receiving sectors for socio-economy, allows for cross-taxa comparisons and prioritization of the most damaging species. The GISS is simple and transparent, can be conducted with limited funds, and can be applied to a large number of alien species across taxa and environments. Meanwhile, the system was applied to 349 alien animal and plant species. In a comparison with 22 other impact assessment methods, the combination of environmental and socio-economic impact, as well as the possibility of weighting and ranking of the scoring results make GISS the most broadly applicable system.

  19. Comparison of different radiographic methods for the detection of the mandibular canal

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Eun Kyung [Dankook University College of Medicine, Seoul (Korea, Republic of)

    2003-12-15

    To compare the visibility of the mandibular canal at the different radiographic methods such as conventional panoramic radiographs, Vimplant multiplanar reformatting (MPR)-CT panoramic images, Vimplant MPR-CT paraxial images and film-based DentaScan MPR-CT images. Data of 11 mandibular dental implant patients, who had been planned treatment utilizing both panoramic and MPR-CT examination with DentaScan software (GE Medical systems, Milwaukee, USA), were used in this study. The archived axial CT data stored on CD-R discs were transferred to a personal computer with 17' LCD monitor. Paraxial and panoramic images were reconstructed using Vimplant software (CyberMed Inc., Seoul, Korea). Conventional panoramic radiographs, monitor-based Vimplant MPR-CT panoramic images, monitor-based Vimplant MPR-CT paraxial images, and film-based DentaScan MPR-CT images were evaluated for visibility of the mandibular canal at the mental foramen, 1 cm, 2 cm, and 3 cm posterior to mental foramen using the 4-point grading score. Vimplant MPR-CT panoramic, paraxial, and DentaScan MPR-CT images revealed significantly clearer images than conventional panoramic radiographs. Particularly at the region 1 cm posterior to mental foramen, conventional panoramic radiographs showed a markedly lower percentage of 'excellent' mandibular canal images than images produced by other modalities. Vimplant MPR-CT and DentaScan MPR-CT images did not show significant difference in visibility of the mandibular canal. The study results shoe that Vimplant and DentaScan MPR-CT imaging systems offer significantly better images of the mandibular canal than conventional panoramic radiograph.

  20. The reliability of tablet computers in depicting maxillofacial radiographic landmarks

    OpenAIRE

    2015-01-01

    Purpose This study was performed to evaluate the reliability of the identification of anatomical landmarks in panoramic and lateral cephalometric radiographs on a standard medical grade picture archiving communication system (PACS) monitor and a tablet computer (iPad 5). Materials and Methods A total of 1000 radiographs, including 500 panoramic and 500 lateral cephalometric radiographs, were retrieved from the de-identified dataset of the archive of the Section of Oral and Maxillofacial Radio...

  1. Comparison of the Qualitative and Developmental Scoring Systems for the Modified Version of the Bender-Gestalt Test.

    Science.gov (United States)

    Brannigan, Gary G.; Brunner, Nancy A.

    1993-01-01

    Examined two scoring systems for Modified Version of the Bender-Gestalt Test. Administered Bender-Gestalt and Otis-Lennon School Ability Test to 75 first-grade and 84 second-grade students. Both systems were significantly correlated with school ability. Results of tests for differences between correlations indicated that Qualitative Scoring System…

  2. Comparison of the Bender Gestalt Test for Both Black and White Brain-Damaged Patients Using Two Scoring Systems

    Science.gov (United States)

    Butler, Oliver T.; And Others

    1976-01-01

    This study tested for cultural bias in the Bender Visual Motor Gestalt Test. Subjects were 72 black and white patients diagnosed as either brain damaged or psychiatric. Bender protocols were scored by Pascal-Suttell and Hain systems. No race effect appeared except for the Pascal-Suttell system for which blacks scored significantly better. (Author)

  3. Clinical performance of two visual scoring systems in detecting and assessing activity status of occlusal caries in primary teeth

    DEFF Research Database (Denmark)

    Braga, M M; Ekstrand, K R; Martignon, S

    2010-01-01

    This study aimed to compare the clinical performance of two sets of visual scoring criteria for detecting caries severity and assessing caries activity status in occlusal surfaces. Two visual scoring systems--the Nyvad criteria (NY) and the ICDAS-II including an adjunct system for lesion activity...

  4. A Psychometric Study of the Kinetic-House-Tree-Person Scoring System for People with Psychiatric Disorders in Taiwan

    Directory of Open Access Journals (Sweden)

    Chih-Ying Li

    2014-06-01

    Conclusion: The KHTP scoring system has acceptable construct validity, inter-rater reliability, and test–retest reliability. Because drawing tests have the advantage of expressing nonverbal characteristics, the scoring system should prove to be very useful for those who are unwilling or unable to communicate verbally. This study therefore provides valuable information for clinical application, particularly for the psychiatric rehabilitation professions.

  5. Analysis of the confluence of three patterns using the Centering and Pointing System (CAPS) images for the Advanced Radiographic Capability (ARC) at the National Ignition Facility

    Science.gov (United States)

    Leach, Richard R.; Awwal, Abdul; Bliss, Erlan; Roberts, Randy; Rushford, Michael; Wilhelmsen, Karl; Zobrist, Thomas

    2014-09-01

    The Advance Radiographic Capability (ARC) at the National Ignition Facility (NIF) is a laser system that employs up to four petawatt (PW) lasers to produce a sequence of short pulses that generate X-rays which backlight highdensity internal confinement fusion (ICF) targets. Employing up to eight backlighters, ARC can produce an X-ray "motion picture" to diagnose the compression and ignition of a cryogenic deuterium-tritium target with tens-ofpicosecond temporal resolution during the critical phases of an ICF shot. Multi-frame, hard-X-ray radiography of imploding NIF capsules is a capability which is critical to the success of NIF's missions. The function of the Centering and Pointing System (CAPS) in ARC is to provide superimposed near-field and far-field images on a common optical path. The Images are then analyzed to extract beam centering and pointing data for the control system. The images contain the confluence of pointing, centering, and reference patterns. The patterns may have uneven illumination, particularly when the laser is misaligned. In addition, the simultaneous appearance of three reference patterns may be co-incidental, possibly masking one or more of the patterns. Image analysis algorithms have been developed to determine the centering and pointing position of ARC from these images. In the paper we describe the image analysis algorithms used to detect and identify the centers of these patterns. Results are provided, illustrating how well the process meets system requirements.

  6. Oxford NOTECHS II: a modified theatre team non-technical skills scoring system.

    Directory of Open Access Journals (Sweden)

    Eleanor R Robertson

    Full Text Available BACKGROUND: We previously developed and validated the Oxford NOTECHS rating system for evaluating the non-technical skills of an entire operating theatre team. Experience with the scale identified the need for greater discrimination between levels of performance within the normal range. We report here the development of a modified scale (Oxford NOTECHS II to facilitate this. The new measure uses an eight-point instead of a four point scale to measure each dimension of non-technical skills, and begins with a default rating of 6 for each element. We evaluated this new scale in 297 operations at five NHS sites in four surgical specialities. Measures of theatre process reliability (glitch count and compliance with the WHO surgical safety checklist were scored contemporaneously, and relationships with NOTECHS II scores explored. RESULTS: Mean team Oxford NOTECHS II scores was 73.39 (range 37-92. The means for surgical, anaesthetic and nursing sub-teams were 24.61 (IQR 23, 27; 24.22 (IQR 23, 26 and 24.55 (IQR 23, 26. Oxford NOTECHS II showed good inter-rater reliability between human factors and clinical observers in each of the four domains. Teams with high WHO compliance had higher mean Oxford NOTECHS II scores (74.5 than those with low compliance (71.1 (p = 0.010. We observed only a weak correlation between Oxford NOTECHS II scores and glitch count; r = -0.26 (95% CI -0.36 to -0.15. Oxford NOTECHS II scores did not vary significantly between 5 different hospital sites, but a significant difference was seen between specialities (p = 0.001. CONCLUSIONS: Oxford NOTECHS II provides good discrimination between teams while retaining reliability and correlation with other measures of teamwork performance, and is not confounded by technical performance. It is therefore suitable for combined use with a technical performance scale to provide a global description of operating theatre team performance.

  7. [Neurological diseases and SPECT--analysis using easy Z-score imaging system (eZIS)].

    Science.gov (United States)

    Matsuda, Hiroshi

    2007-05-01

    We developed a method for automated diagnosis of brain perfusion SPECT and designated this method as an easy Z-score imaging system (eZIS). In this software program, voxel-by-voxel Z-score analysis after voxel normalization to global mean or cerebellar values; Z-score = ( [control mean] - [individual value] )/ (control SD) is performed. These Z-score maps are displayed by overlay on tomographic sections and by projection with averaged Z-score of 14mm thickness to surface rendering of the anatomically standardized MRI template. Anatomical standardization of SPECT images into a stereotactic space is performed using statistical parametric mapping (SPM) 2. This program has an advantage of capability of incorporation of SPM results into automated analysis of Z-score values as a volume of interest (VOI). A specific VOI can be determined by group comparison of SPECT images for patients with a neuropsychiatric disease with those for healthy volunteers using SPM. Even if a center can construct a normal database with good quality comprising a large number of healthy volunteers, other centers have not been able to use this normal database because of differences between the used gamma cameras, collimators and physical correction algorithms. Since SPECT exhibits greater variations in image quality among different centers than PET, conversion of SPECT images may be necessary for sharing a normal database. In this eZIS software, we incorporated a newly developed program for making it possible to share a normal database in SPECT studies. A Hoffman 3-dimensional brain phantom experiment was conducted to determine systematic differences between SPECT scanners. SPECT images for the brain phantom were obtained using two different scanners. Dividing these two phantom images after anatomical standardization by SPM created a 3-dimensional conversion map. The use of a conversion map obtained from SPECT images of the same phantom provided very similar SPECT data despite extreme differences

  8. Comparison of the balance accelerometer measure and balance error scoring system in adolescent concussions in sports.

    Science.gov (United States)

    Furman, Gabriel R; Lin, Chia-Cheng; Bellanca, Jennica L; Marchetti, Gregory F; Collins, Michael W; Whitney, Susan L

    2013-06-01

    High-technology methods demonstrate that balance problems may persist up to 30 days after a concussion, whereas with low-technology methods such as the Balance Error Scoring System (BESS), performance becomes normal after only 3 days based on previously published studies in collegiate and high school athletes. To compare the National Institutes of Health's Balance Accelerometer Measure (BAM) with the BESS regarding the ability to detect differences in postural sway between adolescents with sports concussions and age-matched controls. Cohort study (diagnosis); Level of evidence, 2. Forty-three patients with concussions and 27 control participants were tested with the standard BAM protocol, while sway was quantified using the normalized path length (mG/s) of pelvic accelerations in the anterior-posterior direction. The BESS was scored by experts using video recordings. The BAM was not able to discriminate between healthy and concussed adolescents, whereas the BESS, especially the tandem stance conditions, was good at discriminating between healthy and concussed adolescents. A total BESS score of 21 or more errors optimally identified patients in the acute concussion group versus healthy participants at 60% sensitivity and 82% specificity. The BAM is not as effective as the BESS in identifying abnormal postural control in adolescents with sports concussions. The BESS, a simple and economical method of assessing postural control, was effective in discriminating between young adults with acute concussions and young healthy people, suggesting that the test has value in the assessment of acute concussions.

  9. Hospital Triage System for Adult Patients Using an Influenza-Like Illness Scoring System during the 2009 Pandemic—Mexico

    Science.gov (United States)

    Rodriguez-Noriega, Eduardo; Gonzalez-Diaz, Esteban; Morfin-Otero, Rayo; Gomez-Abundis, Gerardo F.; Briseño-Ramirez, Jaime; Perez-Gomez, Hector Raul; Lopez-Gatell, Hugo; Alpuche-Aranda, Celia M.; Ramírez, Ernesto; López, Irma; Iguala, Miguel; Chapela, Ietza Bojórquez; Zavala, Ethel Palacios; Hernández, Mauricio; Stuart, Tammy L.; Villarino, Margarita Elsa; Widdowson, Marc-Alain; Waterman, Steve; Uyeki, Timothy; Azziz-Baumgartner, Eduardo

    2010-01-01

    Background Pandemic influenza A (H1N1) virus emerged during 2009. To help clinicians triage adults with acute respiratory illness, a scoring system for influenza-like illness (ILI) was implemented at Hospital Civil de Guadalajara, Mexico. Methods A medical history, laboratory and radiology results were collected on emergency room (ER) patients with acute respiratory illness to calculate an ILI-score. Patients were evaluated for admission by their ILI-score and clinicians' assessment of risk for developing complications. Nasal and throat swabs were collected from intermediate and high-risk patients for influenza testing by RT-PCR. The disposition and ILI-score of those oseltamivir-treated versus untreated, clinical characteristics of 2009 pandemic influenza A (H1N1) patients versus test-negative patients were compared by Pearson's Χ2, Fisher's Exact, and Wilcoxon rank-sum tests. Results Of 1840 ER patients, 230 were initially hospitalized (mean ILI-score = 15), and the rest were discharged, including 286 ambulatory patients given oseltamivir (median ILI-score = 11), and 1324 untreated (median ILI-score = 5). Fourteen (1%) untreated patients returned, and 3 were hospitalized on oseltamivir (median ILI-score  = 19). Of 371 patients tested by RT-PCR, 104 (28%) had pandemic influenza and 42 (11%) had seasonal influenza A detected. Twenty (91%) of 22 imaged hospitalized pandemic influenza patients had bilateral infiltrates compared to 23 (38%) of 61 imaged hospital test-negative patients (p<0.001). One patient with confirmed pandemic influenza presented 6 days after symptom onset, required mechanical ventilation, and died. Conclusions The triaging system that used an ILI-score complimented clinicians' judgment of who needed oseltamivir and inpatient care and helped hospital staff manage a surge in demand for services. PMID:20498718

  10. Systemic Inflammatory Response Syndrome (SIRS) Score Independently Predicts Poor Outcome in Isolated Traumatic Brain Injury.

    Science.gov (United States)

    Jacome, Tomas; Tatum, Danielle

    2017-05-25

    Systemic inflammatory response syndrome (SIRS) is frequently observed after various types of acute cerebral injury and has been linked to clinical deterioration in non-traumatic brain injury (TBI). SIRS scores have also been shown to be predictive of length of stay and mortality in trauma patients. We aimed to determine the prognostic utility of SIRS present at admission in trauma patients with isolated TBI. This was a 5-year retrospective cohort study of adults (≥18 years) with isolated TBI admitted to a Level II trauma center. The prognostic value of SIRS, total SIRS scores, and each SIRS criterion was examined by Χ (2) and logistic regression analyses. Of the 330 patients identified, 50 (15.2%) met SIRS criteria. SIRS was significantly associated with poor outcome (P SIRS score of 2 on admission (P = 0.007) and increased significantly to 6.5 times in patients with a SIRS score of 3 (P = 0.002). Logistic regression demonstrated SIRS and each criterion to be significant independent prognostic factors (SIRS, P = 0.030; body temperature, P = 0.006; tachypnea, P = 0.022, tachycardia P = 0.023). SIRS at admission is an independent predictor of poor outcome in isolated TBI patients. These data demonstrate SIRS to be an important clinical tool that may be used in facilitating prognostication, particularly in elderly trauma patients. Future prospective studies aimed at therapeutic interventions to mitigate SIRS in TBI patients are warranted. Prognostic, Level III.

  11. Myeloproliferative Neoplasm (MPN) Symptom Assessment Form Total Symptom Score: Prospective International Assessment of an Abbreviated Symptom Burden Scoring System Among Patients With MPNs

    Science.gov (United States)

    Emanuel, Robyn M.; Dueck, Amylou C.; Geyer, Holly L.; Kiladjian, Jean-Jacques; Slot, Stefanie; Zweegman, Sonja; te Boekhorst, Peter A.W.; Commandeur, Suzan; Schouten, Harry C.; Sackmann, Federico; Kerguelen Fuentes, Ana; Hernández-Maraver, Dolores; Pahl, Heike L.; Griesshammer, Martin; Stegelmann, Frank; Doehner, Konstanze; Lehmann, Thomas; Bonatz, Karin; Reiter, Andreas; Boyer, Francoise; Etienne, Gabriel; Ianotto, Jean-Christophe; Ranta, Dana; Roy, Lydia; Cahn, Jean-Yves; Harrison, Claire N.; Radia, Deepti; Muxi, Pablo; Maldonado, Norman; Besses, Carlos; Cervantes, Francisco; Johansson, Peter L.; Barbui, Tiziano; Barosi, Giovanni; Vannucchi, Alessandro M.; Passamonti, Francesco; Andreasson, Bjorn; Ferarri, Maria L.; Rambaldi, Alessandro; Samuelsson, Jan; Birgegard, Gunnar; Tefferi, Ayalew; Mesa, Ruben A.

    2012-01-01

    Purpose Myeloproliferative neoplasm (MPN) symptoms are troublesome to patients, and alleviation of this burden represents a paramount treatment objective in the development of MPN-directed therapies. We aimed to assess the utility of an abbreviated symptom score for the most pertinent and representative MPN symptoms for subsequent serial use in assessing response to therapy. Patients and Methods The Myeloproliferative Neoplasm Symptom Assessment Form total symptom score (MPN-SAF TSS) was calculated as the mean score for 10 items from two previously validated scoring systems. Questions focus on fatigue, concentration, early satiety, inactivity, night sweats, itching, bone pain, abdominal discomfort, weight loss, and fevers. Results MPN-SAF TSS was calculable for 1,408 of 1,433 patients with MPNs who had a mean score of 21.2 (standard deviation [SD], 16.3). MPN-SAF TSS results significantly differed among MPN disease subtypes (P < .001), with a mean of 18.7 (SD, 15.3), 21.8 (SD, 16.3), and 25.3 (SD, 17.2) for patients with essential thrombocythemia, polycythemia vera, and myelofibrosis, respectively. The MPN-SAF TSS strongly correlated with overall quality of life (QOL; r = 0.59; P < .001) and European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire C30 (EORTC QLQ-C30) functional scales (all P < .001 and absolute r ≥ 0.50 except social functioning r = 0.48). No significant trends were present when comparing therapy subgroups. The MPN-SAF TSS had excellent internal consistency (Cronbach's α = .83). Factor analysis identified a single underlying construct, indicating that the MPN-SAF TSS is an appropriate, unified scoring method. Conclusion The MPN-SAF TSS is a concise, valid, and accurate assessment of MPN symptom burden with demonstrated clinical utility in the largest prospective MPN symptom study to date. This new prospective scoring method may be used to assess MPN symptom burden in both clinical practice and trial settings. PMID

  12. Evaluating clinical abdominal scoring system in predict- ing the necessity of laparotomy in blunt abdominal trauma

    Directory of Open Access Journals (Sweden)

    Erfantalab-Avini Peyman

    2011-06-01

    Full Text Available 【Abstract】 Objectives: Trauma is among the lead- ing causes of death. Medical management of blunt abdomi- nal trauma (BAT relies on judging patients for whom lap- arotomy is mandatory. This study aimed to determine BAT patients’ signs, as well as paraclinical data, and to clarify the accuracy, sensitivity, specificity, positive and negative predictive value of clinical abdominal scoring system (CASS, a new scoring system based on clinical signs, in predicting whether a BAT patient needs laparotomy or not. Methods: Totally 400 patients suspected of BAT that arrived at the emergency department of two university hos- pitals in Tehran from March 20, 2007 to March 19, 2009 were included in this study. They were evaluated for age, sex, type of trauma, systolic blood pressure, Glasgow coma scale (GCS, pulse rate, time of presentation after trauma, abdomi- nal clinical findings, respiratory rate, temperature, hemoglo- bin (Hb concentration, focused abdominal sonography in trauma (FAST and CASS. Results: Our measurements showed that CASS had an accuracy of 94%, sensitivity of 100%, specificity of 88%, positive predictive value of 90% and negative predictive value of 100% in determining the necessity of laparotomy in BAT patients. Moreover, in our analysis, systolic blood pressure, GCS, pulse rate, Hb concentration, time of presen- tation after trauma, abdominal clinical findings and FAST were also shown to be helpful in confirming the need for laparotomy (P<0.05. Conclusion: CASS is a promising scoring system in rapid detection of the need for laparotomy as well as in minimizing auxiliary expense for further evaluation in BAT patients, thus to promote the cost-benefit ratio and accu- racy of diagnosis. Key words: Abdominal injuries; Laparotomy; Patients; Wounds, nonpenetrating

  13. Evaluating clinical abdominal scoring system in predicting the necessity of laparotomy in blunt abdominal trauma

    Institute of Scientific and Technical Information of China (English)

    Peyman Erfantalab-Avini; Nima Hafezi-Nejad; Mojtaba Chardoli; Vafa Rahimi-Movaghar

    2011-01-01

    Objectives: Trauma is among the leading causes of death. Medical management of blunt abdominal trauma (BAT) relies on judging patients for whom laparotomy is mandatory. This study aimed to determine BAT patients' signs, as well as paraclinical data, and to clarify the accuracy, sensitivity, specificity, positive and negative predictive value of clinical abdominal scoring system (CASS), a new scoring system based on clinical signs, in predicting whether a BAT patient needs laparotomy or not.Methods: Totally 400 patients suspected of BAT that arrived at the emergency department of two university hospitals in Tehran from March 20, 2007 to March 19, 2009 were included in this study. They were evaluated for age, sex,type of trauma, systolic blood pressure, Glasgow coma scale (GCS), pulse rate, time of presentation after trauma, abdominal clinical findings, respiratory rate, temperature, hemoglobin (Hb) concentration, focused abdominal sonography in trauma (FAST) and CASS.Results: Our measurements showed that CASS had an accuracy of 94%, sensitivity of 100%, specificity of 88%,positive predictive value of 90% and negative predictive value of 100% in determining the necessity of laparotomy in BAT patients. Moreover, in our analysis, systolic blood pressure, GCS, pulse rate, Hb concentration, time of presentation after trauma, abdominal clinical findings and FAST were also shown to be helpful in confirming the need for laparotomy (P<0.05).Conclusion: CASS is a promising scoring system in rapid detection of the need for laparotomy as well as in minimizing auxiliary expense for further evaluation in BAT patients, thus to promote the cost-benefit ratio and accuracy of diagnosis.

  14. Using acute kidney injury severity and scoring systems to predict outcome in patients with burn injury.

    Science.gov (United States)

    Kuo, George; Yang, Shih-Yi; Chuang, Shiow-Shuh; Fan, Pei-Chun; Chang, Chih-Hsiang; Hsiao, Yen-Chang; Chen, Yung-Chang

    2016-12-01

    Acute kidney injury (AKI) is a frequent complication of severe burn injury and is associated with mortality. The definition of AKI was modified by the Kidney Disease Improving Global Outcomes Group in 2012. So far, no study has compared the outcome accuracy of the new AKI staging guidelines with that of the complex score system. Hence, we compared the accuracy of these approaches in predicting mortality. This was a post hoc analysis of prospectively collected data from an intensive care burn unit in a tertiary care university hospital. Patients admitted to this unit from July 2004 to December 2006 were enrolled. Demographic, clinical, and laboratory data and prognostic risk scores were used as predictors of mortality. A total of 145 adult patients with a mean age of 41.9 years were studied. Thirty-five patients (24.1%) died during the hospital course. Among the prognostic risk models, the Acute Physiology and Chronic Health Evaluation III system exhibited the strongest discriminative power and the AKI staging system also predicted mortality well (areas under the receiver operating characteristic curve: 0.889 vs. 0.835). Multivariate logistic regression analysis identified total burn surface area, ventilator use, AKI, and toxic epidermal necrolysis as independent risk factors for mortality. Our results revealed that AKI stage has considerable discriminative power for predicting mortality. Compared with other prognostic models, AKI stage is easier to use to assess outcome in patients with severe burn injury. Copyright © 2016. Published by Elsevier B.V.

  15. Moderate precision of prognostic scoring systems in a consecutive, prospective cohort of 544 patients with metastatic spinal cord compression

    DEFF Research Database (Denmark)

    Morgen, Søren Schmidt; Nielsen, Dennis Hallager; Larsen, Claus Falck

    2014-01-01

    PURPOSE: Improved survival among cancer patients and diverse conclusions from recent studies make it relevant to reassess the performance of the Tokuhashi Revised score and the Tomita score. The aim of this study was to validate and compare these two scoring systems in a recent and unselected...... and compared to the observed survival. We assessed how precise the scoring systems predicted survival with McNemar's test. The prognostic value was illustrated with Kaplan-Meier curves, and the individual prognostic components were analyzed with Cox regression analysis. RESULTS: The mean age was 65 years...... cohort of patients with metastatic spinal cord compression (MSCC). METHODS: In 2011, we conducted a prospective cohort study of 544 patients who were consecutively admitted with MSCC to one treatment facility. Patients estimated survival were assessed with the Tokuhashi Revised score and the Tomita score...

  16. AN IMPLEMENTATION OF VIBRATION-BASED AUTOMATIC SCORE-KEEPING SYSTEM FOR TABLE TENNIS GAME

    Directory of Open Access Journals (Sweden)

    Erdem YAVUZ

    2014-01-01

    Full Text Available In sport tournaments human factor plays an important role to evaluate the game. Table tennis is an example of this kind of sports. In order to avoid erroneous human decisions and to enhance referees’ decisions an automatic score-keeping system for table tennis game is designed and implemented with low cost vibration sensors attached underside of the tennis table. The purpose of using vibration sensors is to detect ball colliding with the surface. An additional vibration sensor is also used to detect ball touching the net, determining let state in the game. Petri net scheme is used to model the operation of the system, making it easy to visualize its operation. We believe that the proposed system will contribute much to better evaluate the various phases of table tennis games and to aid the referees to make better decisions.

  17. Quantifying Systemic Evolutionary Changes by Color Coding Confidence-Scored PPI Networks

    Science.gov (United States)

    Dao, Phuong; Schönhuth, Alexander; Hormozdiari, Fereydoun; Hajirasouliha, Iman; Sahinalp, S. Cenk; Ester, Martin

    A current major challenge in systems biology is to compute statistics on biomolecular network motifs, since this can reveal significant systemic differences between organisms. We extend the “color coding” technique to weighted edge networks and apply it to PPI networks where edges are weighted by probabilistic confidence scores, as provided by the STRING database. This is a substantial improvement over the previously available studies on, still heavily noisy, binary-edge-weight data. Following up on such a study, we compute the expected number of occurrences of non-induced subtrees with k ≤ 9 vertices. Beyond the previously reported differences between unicellular and multicellular organisms, we reveal major differences between prokaryotes and unicellular eukaryotes. This establishes, for the first time on a statistically sound data basis, that evolutionary distance can be monitored in terms of elevated systemic arrangements.

  18. Bone morphogenetic protein 6 polymorphisms are associated with radiographic progression in ankylosing spondylitis.

    Directory of Open Access Journals (Sweden)

    Young Bin Joo

    Full Text Available Nearly 25 genetic loci associated with susceptibility to ankylosing spondylitis (AS have been identified by several large studies. However, there have been limited studies to identify the genes associated with radiographic severity of the disease. Thus we investigated which genes involved in bone formation pathways might be associated with radiographic severity in AS.A total of 417 Korean AS patients were classified into two groups based on the radiographic severity as defined by the modified Stoke' Ankylosing Spondylitis Spinal Score (mSASSS system. Severe AS was defined by the presence of syndesmophytes and/or fusion in the lumbar or cervical spine (n = 195. Mild AS was defined by the absence of any syndesmophyte or fusion (n = 170. A total of 251 single nucleotide polymorphisms (SNPs within 52 genes related to bone formation were selected and genotyped. Odds ratios (OR and 95% confidence interval (95% CI were analysed by multivariate logistic regression controlling for age at onset of symptoms, sex, disease duration, and smoking status as covariates.We identified new loci of bone morphogenetic protein 6 (BMP6 associated with radiographic severity in patients with AS that passed false discovery rate threshold. Two SNPs in BMP6 were significantly associated with radiologic severity [rs270378 (OR 1.97, p = 6.74 × 10(-4 and rs1235192 [OR 1.92, p = 1.17 × 10(-3] adjusted by covariates.This is the first study to demonstrate that BMP6 is associated with radiographic severity in AS, supporting the role wingless-type like/BMP pathway on radiographic progression in AS.

  19. The Relationship of Scores on Elizur's Hostility System on the Rorschach to the Acting-Out Score on the Hand Test.

    Science.gov (United States)

    Martin, John D.; And Others

    1978-01-01

    The relationship between Elizur's Hostility Scoring on the Rorschach Test and the Acting-Out Score on the Hand Test was examined. Correlations between the two measures (using several scoring procedures) ranged from .40 to .64. (JKS)

  20. Qualitative, quantitative and combination score systems in differential diagnosis of breast lesions by contrast-enhanced ultrasound.

    Science.gov (United States)

    Wang, YongMei; Fan, Wei; Zhao, Song; Zhang, Kai; Zhang, Li; Zhang, Ping; Ma, Rong

    2016-01-01

    To assess the feasibility of score systems in differential diagnosis of breast lesions by contrast-enhanced ultrasound (CEUS). CEUS was performed in 121 patients with 127 breast lesions by Philips iU22 with Sonovue as contrast agent. Pearson Chi-square χ(2) test, binary logistic regression analysis and Student's t-test are used to identify significant CEUS parameters in differential diagnosis. Based on these significant CEUS parameters, qualitative, quantitative and combination score systems were built by scoring 1 for benign characteristic and scoring 2 for malignant characteristic. Receiver operating characteristic (ROC) curve was applied to evaluate the diagnostic efficacy of different analytical methods. Pathological results showed 41 benign and 86 malignant lesions. Qualitative analysis and logistic regression analysis showed that there are significant differences in enhancement degree, enhancement order, internal homogeneity, enhancement margin, surrounding vessels and enlargement of diameters (PQuantitative analysis indicated that malignant lesions tended to show higher peak intensity (PI), larger area under the curve (AUC) and shorter time to peak (TTP) than benign ones (PQualitative score systems showed higher diagnostic efficacy than single quantitative CEUS parameters. The corresponding area under the ROC curve for qualitative, quantitative and combination score systems were 0.897, 0.716 and 0.903 respectively. Z test showed that area under the ROC curve of quantitative score system was statistically smaller than that of other score systems. Quantitative score system helps little in improving the diagnostic efficacy of CEUS. While qualitative score system improves the performance of CEUS greatly in discrimination of benign and malignant breast lesions. The application of qualitative could develop the diagnostic performance of CEUS which is clinically promising. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  1. Doses measured using AEC on direct digital radiographic (DDR) X-rays systems: updated results with an RP 162 perspective.

    Science.gov (United States)

    Bowden, L; Faulkner, R; Gallagher, A; O'Connor, U; Walsh, C; Dowling, A; O'Reilly, G

    2013-02-01

    As digital technology in diagnostic radiology systems becomes more prevalent, there is a need to provide comparative dose information for these new systems. This is needed in particular for testing the automatic exposure control (AEC) devices on direct digital radiography (DDR) systems as there is no consensus on the receptor dose level in the current guidelines. The new European Commission RP 162 document sets the suspension level for the 'verification of kerma at receptor entrance in computed radiography and DDR systems under AEC' as ≥10 µGy. This document also notes that alternate methodologies are acceptable, and may require adjustment in the suspension level if used. This study provides a range of typical doses under AEC for DDR systems, for a variety measurement methodologies, including that described in RP 162.

  2. Proposing melasma severity index: A new, more practical, office-based scoring system for assessing the severity of melasma

    Directory of Open Access Journals (Sweden)

    Imran Majid

    2016-01-01

    Full Text Available Background: Melasma Area and Severity Index (MASI, the scoring system in melasma, needs to be refined. Aims and Objectives: To propose a more practical scoring system, named as Melasma Severity Index (MSI, for assessing the disease severity and treatment response in melasma. Materials and Methods: Four dermatologists were trained to calculate MASI and also the proposed MSI scores. For MSI, the formula used was 0.4 (a × p 2 l + 0.4 (a × p 2 r + 0.2 (a × p 2 n where "a" stands for area, "p" for pigmentation, "l" for left face, "r" for right face, and "n" for nose. On a single day, 30 enrolled patients were randomly examined by each trained dermatologist and their MASI and MSI scores were calculated. Next, each rater re-examined every 6 th patient for repeat MASI and MSI scoring to assess intra- and inter-rater reliability of MASI and MSI scores. Validity was assessed by comparing the individual scores of each rater with objective data from mexameter and ImageJ software. Results: Inter-rater reliability, as assessed by intraclass correlation coefficient, was significantly higher for MSI (0.955 as compared to MASI (0.816. Correlation of scores with objective data by Spearman′s correlation revealed higher rho values for MSI than for MASI for all raters. Limitations: Sample population belonged to a single ethnic group. Conclusions: MSI is simpler and more practical scoring system for melasma.

  3. Peritoneal tuberculosis: radiographic diagnosis

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    Carolina Ospina-Moreno

    2014-12-01

    Full Text Available Peritoneal tuberculosis (TB is an extrapulmonary form of presentation of tuberculosis. HIV infection is a primary risk factor for this condition. Diagnosis requires microbiological or histopathological confirmation in addition to supporting radiological imaging studies. Abdominal ultrasonography and CT are useful to obtain a radiographic diagnosis, with typical findings including diffuse peritoneal thickening, presence of ascites in varying volumes, adenopathies, and caseating nodes. We report 2 cases of patients with ascites and nodular peritoneal thickening on diagnostic images, as well as high CA-125 levels in laboratory tests. In both patients, a diagnosis of peritoneal tuberculosis was reached following a US-guided peritoneal biopsy.

  4. Scoring system to predict asymptomatic choledocholithiasis before laparoscopic cholecystectomy. A matched case-control study.

    Science.gov (United States)

    Sarli, L; Costi, R; Gobbi, S; Iusco, D; Sgobba, G; Roncoroni, L

    2003-09-01

    The purpose of this prospective study was to evaluate if a recently proposed score system based on six preoperative parameters [history of colic pain and/or jaundice, dyspepsia, cholecystitis, ultrasound (US), evidence of common bile duct stones (CBDS), number and size of gallbladder stones at US, level of serum glutamic oxalacetic transaminase and/or alkaline phosphatase is effective in the selection of patients undergoing laparoscopic cholecystectomy (LC) with asymptomatic CBDS and could allow a significant reduction of the total number of preoperative examinations. In the case group, 408 patients were categorized into low-, medium-, and high-risk classes and underwent, respectively, no further preoperative assessment of the bile duct, intravenous cholangiography (IVC), and endoscopic retrograde cholangiography (ERC). Intraoperative cholangiography (IOC) was performed whenever the surgeon was in doubt as to biliary anatomy or bile duct clearance. These patients were compared with 408 retrospectively matched patients (control group) undergoing routine preoperative IVC and/or ERC. In the case group, significantly lower numbers of IVC (120 vs 392) and IOC (3 vs 16) were performed ( p < 0.005), whereas no difference in the total number of ERCs was noted. One patient in the control group had retained CBDS detected during follow-up evaluation, whereas none occurred in the case group. The proposed scoring system allows selective use of IVC, ERC, and/or IOC in patients undergoing elective LC.

  5. A wireless-sensor scoring and training system for combative sports

    Science.gov (United States)

    Partridge, Kane; Hayes, Jason P.; James, Daniel A.; Hill, Craig; Gin, Gareth; Hahn, Allan

    2005-02-01

    Although historically among the most popular of sports, today, combative sports are often viewed as an expression of our savage past. Of primary concern are the long term effects of participating in these sports on the health of participants. The scoring of such sports has also been the subject of much debate, with a panel of judges making decisions about very quick events involving large sums of prize money. This paper describes an electronic system for use primarily in the sport of boxing, though it is suitable for martial arts such as karate and taekwondo. The technology is based on a previously described sensor platform and integrates a network of sensors on the athlete"s head, body and hands. Using a Bluetooth network, physical contacts are monitored in near real-time or post event on a remote computer to determine legal hits and hence derivative measures like scoring and final outcomes. It is hoped that this system can be applied to reduce the need for full contact contests as well as provide a more reliable method of determining the outcome of a bout. Other benefits presented here include the ability to analyse an athlete's performance post match or training session, such as assessing the efficacy of training drills and effects of fatigue.

  6. Selection methodology with scoring system: application to Mexican plants producing podophyllotoxin related lignans.

    Science.gov (United States)

    Lautié, E; Quintero, R; Fliniaux, M-A; Villarreal, M-L

    2008-12-08

    As most anticancer drugs are derived from natural sources, the screening of local medicinal flora should be considered a primary step in the search for new sources for antineoplastic agents. In Mexico, more than 6000 medicinal plant species are used for the treatment of various diseases, including cancer. A multifactorial plant selection method, employing various criteria was designed and applied in order to select alternative sources of podophyllotoxin lignan analogues. For each criterion (chemotaxonomy, traditional medical uses and published scientific data), an arbitrary score system was ascribed to the species and the sum of these enabled us to compare potential candidates. The resulting selected plants were tested for cytotoxic activity and the compounds responsible for this activity were evaluated by liquid chromatography-mass spectroscopy (LC-MS). Around 50 species from the Mexican flora were initially considered. From these, six species were selected by referring to the results from the scoring system and these were then collected. Three extracts were evaluated as being highly cytotoxic against three different cancer cell lines. Finally, podophyllotoxin-like lignans could be identified by observing the fragmentation pattern on mass spectra, obtained from the LC-MS in two species: Linum scabrellum and Hyptis suaveolens.

  7. Intelligent query by humming system based on score level fusion of multiple classifiers

    Science.gov (United States)

    Pyo Nam, Gi; Thu Trang Luong, Thi; Ha Nam, Hyun; Ryoung Park, Kang; Park, Sung-Joo

    2011-12-01

    Recently, the necessity for content-based music retrieval that can return results even if a user does not know information such as the title or singer has increased. Query-by-humming (QBH) systems have been introduced to address this need, as they allow the user to simply hum snatches of the tune to find the right song. Even though there have been many studies on QBH, few have combined multiple classifiers based on various fusion methods. Here we propose a new QBH system based on the score level fusion of multiple classifiers. This research is novel in the following three respects: three local classifiers [quantized binary (QB) code-based linear scaling (LS), pitch-based dynamic time warping (DTW), and LS] are employed; local maximum and minimum point-based LS and pitch distribution feature-based LS are used as global classifiers; and the combination of local and global classifiers based on the score level fusion by the PRODUCT rule is used to achieve enhanced matching accuracy. Experimental results with the 2006 MIREX QBSH and 2009 MIR-QBSH corpus databases show that the performance of the proposed method is better than that of single classifier and other fusion methods.

  8. Intelligent query by humming system based on score level fusion of multiple classifiers

    Directory of Open Access Journals (Sweden)

    Park Sung-Joo

    2011-01-01

    Full Text Available Abstract Recently, the necessity for content-based music retrieval that can return results even if a user does not know information such as the title or singer has increased. Query-by-humming (QBH systems have been introduced to address this need, as they allow the user to simply hum snatches of the tune to find the right song. Even though there have been many studies on QBH, few have combined multiple classifiers based on various fusion methods. Here we propose a new QBH system based on the score level fusion of multiple classifiers. This research is novel in the following three respects: three local classifiers [quantized binary (QB code-based linear scaling (LS, pitch-based dynamic time warping (DTW, and LS] are employed; local maximum and minimum point-based LS and pitch distribution feature-based LS are used as global classifiers; and the combination of local and global classifiers based on the score level fusion by the PRODUCT rule is used to achieve enhanced matching accuracy. Experimental results with the 2006 MIREX QBSH and 2009 MIR-QBSH corpus databases show that the performance of the proposed method is better than that of single classifier and other fusion methods.

  9. Expanded Koppitz Scoring System of the Bender Gestalt Visual-Motor Test for Adolescents: A Pilot Study.

    Science.gov (United States)

    Bolen, Larry M.; And Others

    1992-01-01

    Examined use of Bender Gestalt Visual-Motor Test with school-age adolescents over age 11. Mean error scores suggest that visual-motor development is not maturationally complete by age 11 years, 11 months. Suggests additional research focusing on extending normative sample or developing new scoring system for adolescents. (Author/NB)

  10. The Consistency between Human Raters and an Automated Essay Scoring System in Grading High School Students' English Writing

    Science.gov (United States)

    Tsai, Min-hsiu

    2012-01-01

    This study investigates the consistency between human raters and an automated essay scoring system in grading high school students' English compositions. A total of 923 essays from 23 classes of 12 senior high schools in Taiwan (Republic of China) were obtained and scored manually and electronically. The results show that the consistency between…

  11. Koppitz scoring system as a measure of Bender-Gestalt performance in behaviorally and emotionally disturbed adolescents.

    Science.gov (United States)

    Shapiro, S K; Simpson, R G

    1995-01-01

    Data are presented to assess the use of the Koppitz scoring system for the Bender-Gestalt Test in a sample (N = 87) of behaviorally and emotionally disturbed adolescents. Results suggested that age was modestly related to Koppitz Developmental scores, an indication that visual-motor skills continue to develop beyond age 11. Scores were related to spatial perception skills as measured on the WISC-R. Gender, primary psychiatric diagnosis, educational tests, and MMPI scores were not related to Bender performance. Findings are discussed in terms of a need for additional research into the utility of the Bender as a measure of visual-motor skills in adolescents.

  12. Variability amongst radiographers in the categorization of clinical acceptability for digital trauma radiography

    Science.gov (United States)

    Decoster, Robin; Toomey, Rachel; Smits, Dirk; Mol, Harrie; Verhelle, Filip; Butler, Marie-Louise

    2016-03-01

    Introduction: Radiographers evaluate anatomical structures to judge clinical acceptability of a radiograph. Whether a radiograph is deemed acceptable for diagnosis or not depends on the individual decision of the radiographer. Individual decisions cause variation in the accepted image quality. To minimise these variations definitions of acceptability, such as in RadLex, were developed. On which criteria radiographers attribute a RadLex categories to radiographs is unknown. Insight into these criteria helps to further optimise definitions and reduce variability in acceptance between radiographers. Therefore, this work aims the evaluation of the correlation between the RadLex classification and the evaluation of anatomical structures, using a Visual Grading Analysis (VGA) Methods: Four radiographers evaluated the visibility of five anatomical structures of 25 lateral cervical spine radiographs on a secondary class display with a VGA. They judged clinical acceptability of each radiograph using RadLex. Relations between VGAS and RadLex category were analysed with Kendall's Tau correlation and Nagelkerke pseudo-R². Results: The overall VGA score (VGAS) and the RadLex score correlate (rτ= 0.62, pConclusion: RadLex scores and VGAS correlate positively, strongly and significantly. The predictive value of bony structures may support the use of these in the judgement of clinical acceptability. Considerable inter-observer variations in the VGAS within a certain RadLex category, suggest that observers use of observer specific cut-off values.

  13. Evaluation of diagnostic findings and scoring systems in outcome prediction in acute pancreatitis

    Institute of Scientific and Technical Information of China (English)

    Ekrem Kaya; Adem Dervi(s)o(g)lu; Cafer Polat

    2007-01-01

    AIM: To determine factors related to disease severity, mortality and morbidity in acute pancreatitis.METHODS: One hundred and ninety-nine consecutive patients were admitted with the diagnosis of acute pancreatitis (AP) in a 5-year period (1998-2002). In a prospective design, demographic data, etiology, mean hospital admission time, clinical, radiological, biochemical findings, treatment modalities, mortality and morbidity were recorded. Endocrine insufficiency was investigated with oral glucose tolerance test. The relations between these parameters, scoring systems (Ranson, Imrie and APACHE n) and patients' outcome were determined by using invariable tests and the receiver operating characteristics curve.RESULTS: One hundred patients were men and 99 were women; the mean age was 55 years. Biliary pancreatitis was the most common form, followed by idiopathic pancreatitis (53% and 26%, respectively). Sixty-three patients had severe pancreatitis and 136 had mild disease. Respiratory rate > 20/min, pulse rate> 90/min, increased C-reactive protein (CRP), lactate dehydrogenase (LDH) and aspartate aminotransferase (AST) levels, organ necrosis > 30% on computed tomography (CT) and leukocytosis were associated with severe disease. The rate of glucose intolerance, morbidity and mortality were 24.1%, 24.8% and 13.6%, respectively. CRP > 142 mg/L, BUN > 22 mg/dL, LDH> 667 U/L, base excess > -5, CT severity index > 3 and APACHE score > 8 were related to morbidity and mortality.CONCLUSION: APACHE n score, LDH, base excess and CT severity index have prognostic value and CRP is a reliable marker for predicting both mortality and morbidity.

  14. Assessment of radiographic screen-film systems: a comparison between the use of a microdensitometer and a drum film digitiser.

    Science.gov (United States)

    Verdun, F R; Pachoud, M; Bergmann, D; Buhr, E

    2005-01-01

    A high-end drum film digitiser (Tango, Germany) and a calibrated linear microdensitometer developed by PTB were used to assess the modulation transfer function (MTF) and the noise power spectra (NPS) of 3 mammographic screen film systems at optical density levels of 0.8, 1.5 and 2.5. The use of a drum scanner to assess MTF and NPS data appears to be adequate but requires an appropriate characterisation of the scanner to verify its internal noise level and its MTF. It is further necessary to calibrate the scanner output in terms of visual diffuse optical densities. Processing of two-dimensional digital data of grating images need to be more strictly defined for accurate MTF measurements of screen-film systems. Nevertheless, even now it seems to be feasible to use commercially available high-end and well calibrated scanners to assess screen film systems. This is especially important for quality assurance purposes because important parameters of screen film systems such like MTF and NPS can now be determined without using sophisticated microdensitometers which are not commercially available.

  15. Critical evaluation of mangled extremity severity scoring system in Indian patients.

    Science.gov (United States)

    Sharma, Sansar; Devgan, Ashish; Marya, K M; Rathee, Nitesh

    2003-07-01

    Amputation of a mangled extremity is repugnant to the patient and the surgeon. However, prolonged unsuccessful attempts at salvage are costly, highly morbid and sometimes lethal. Much discussion has taken place regarding which criteria predict successful salvage, and predictive indices have been proposed in an attempt to identify limbs for which attempted salvage is unlikely to succeed. The mangled extremity severity score, or MESS system is the most thoroughly validated of the various classification systems, but at present there is no predictive scale that can be used with confidence to determine whether to amputate or attempt to salvage a mangled lower extremity. MESS system based on four significant criteria (with increasing points with worsening prognosis) i.e. skeletal injury, limb ischaemia, shock and patient age, has become a standard method to determine which one of the mangled extremities will eventually undergo amputation or salvage. Keeping in view the paucity of studies on Indian patients, a prospective trial of MESS was done in 50 patients who had 56 mangled extremities during the last 3 years. A significant difference between the MESS value of salvaged limbs (4.7) and amputated limbs (8.6) was found. MESS value of more than 7 was most specific and was found to have a positive predictive value of 100%. The results have been compared with Western literature and authors suggest that nerve injuries and irreparable soft tissue loss should be given an extra point each. In bilateral cases, the MESS value of each limb should be properly assessed (especially when patient is in shock), as the score may increase because of the other injured limb.

  16. Ratio analysis and Piotroski scoring system in the automobile industry in Croatia

    Directory of Open Access Journals (Sweden)

    Morana Mesarić

    2014-10-01

    Full Text Available To gain insight into operational efficiency, sustainable profitability, the ability to fulfil commitments, use of funds borrowed or investment risk or operational self-sufficiency, it is necessary to conduct analyses of financial statements usually known as ratio analysis. The paper provides analyses of five Croatian general distributors of the automobile industry. Ratios used in the analyses are those used in the Piotroski f-scoring analyses, which are famous for assessing financial capacities of enterprises on the stock exchange market. Based on ratios used in Piotroski scoring systems the assessment of five enterprises, as well as the sector as a whole was carried out. The analysis covers the period 2007-2012. That is the period of the rise, falling and recovery of the automotive industry throughout the world as well as the rise, falling and recession of the whole economy including the automobile market. In general, the sector itself is financially unstable and consequently risk exposed. Results are used for preliminary analyses and prediction of the future financial strength of the auto industry in Croatia.

  17. Performance assessment of the SOFA, APACHE II scoring system, and SAPS II in intensive care unit organophosphate poisoned patients.

    Science.gov (United States)

    Kim, Yong Hwan; Yeo, Jung Hoon; Kang, Mun Ju; Lee, Jun Ho; Cho, Kwang Won; Hwang, SeongYoun; Hong, Chong Kun; Lee, Young Hwan; Kim, Yang Weon

    2013-12-01

    This study assessed the ability of the Sequential Organ Failure Assessment (SOFA) and Acute Physiology, Chronic Health Evaluation (APACHE) II scoring systems, as well as the Simplified Acute Physiology Score (SAPS) II method to predict group mortality in intensive care unit (ICU) patients who were poisoned with organophosphate. The medical records of 149 organophosphate poisoned patients admitted to the ICU from September 2006 to December 2012 were retrospectively examined. The SOFA, APACHE II, and SAPS II were calculated based on initial laboratory data in the Emergency Department, and during the first 24 hr of ICU admission. The probability of death was calculated for each patient based on the SOFA score, APACHE II score, and SAPS II equations. The ability to predict group mortality by the SOFA score, APACHE II score, and SAPS II method was assessed using two by two decision matrices and receiver operating characteristic (ROC) curve analysis. A total of 131 patients (mean age, 61 yr) were enrolled. The sensitivities, specificities, and accuracies were 86.2%, 82.4%, and 83.2% for the SOFA score, respectively; 65.5%, 68.6%, and 67.9% for the APACHE II scoring system, respectively; and 86.2%, 77.5%, and 79.4% for the SAPS II, respectively. The areas under the curve in the ROC curve analysis for the SOFA score, APACHE II scoring system, and SAPS II were 0.896, 0.716, and 0.852, respectively. In conclusion, the SOFA, APACHE II, and SAPS II have different capability to discriminate and estimate early in-hospital mortality of organophosphate poisoned patients. The SOFA score is more useful in predicting mortality, and easier and simpler than the APACHE II and SAPS II.

  18. The application of European system for cardiac operative risk evaluation II (EuroSCORE II and Society of Thoracic Surgeons (STS risk-score for risk stratification in Indian patients undergoing cardiac surgery

    Directory of Open Access Journals (Sweden)

    Deepak Borde

    2013-01-01

    Full Text Available Aims and Objectives: To validate European system for cardiac operative risk evaluation II (EuroSCORE II and Society of Thoracic Surgeons (STS risk-score for predicting mortality and STS risk-score for predicting morbidity in Indian patients after cardiac surgery. Materials and Methods: EuroSCORE II and STS risk-scores were obtained pre-operatively for 498 consecutive patients. The patients were followed for mortality and various morbidities. The calibration of the scoring systems was assessed using Hosmer-Lemeshow test. The discriminative capacity was estimated by area under receiver operating characteristic (ROC curves. Results: The mortality was 1.6%. For EuroSCORE II and STS risk-score C-statics of 5.43 and 6.11 were obtained indicating satisfactory model fit for both the scores. Area under ROC was 0.69 and 0.65 for EuroSCORE II and STS risk-score with P values of 0.068 and 0.15, respectively, indicating poor discriminatory power. Good fit and discrimination was obtained for renal failure, long-stay in hospital, prolonged ventilator support and deep sternal wound infection but the scores failed in predicting risk of reoperation and stroke. Mortality risk was correctly estimated in low ( 5% patients by both scoring systems. Conclusions: EuroSCORE II and STS risk-scores have satisfactory calibration power in Indian patients but their discriminatory power is poor. Mortality risk was over-estimated by both the scoring systems in high-risk patients. The present study highlights the need for forming a national database and formulating risk stratification tools to provide better quality care to cardiac surgical patients in India.

  19. Radiographic study of ameloblastoma

    Energy Technology Data Exchange (ETDEWEB)

    Shin, Jong Sub; You, Dong Soo [Dept. of Oral Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    1982-11-15

    The purpose of this study is to obtain some information for the differential diagnosis of ameloblastoma from dentigerous cyst by analysis of the radiographic findings of these lesions. The author studied age and sex distribution, the site of the lesion, tooth behavior and several radiographic features of ameloblastoma and dentigerous cyst. The material consisted of 65 patients of ameloblastoma and 37 patients of dentigerous cyst. The results were obtained as followings. 1) The incidence was highest in 2nd decade (29.2%) and total 65 cases consists of 35 males (53.8%) and 30 females (46.2%) in ameloblastoma. 62 cases were found in lower jaw (95.4%) and the highest site of occurrence of ameloblastoma was mandibular molar region 27 cases.(41.5%) 2) In 65 cases of ameloblastoma, 18 cases were seen in association with tooth and 15 cases (83.2%) out of those were associated with mandibular molar teeth. Mandibular molar were most frequently involved in dentigerous cyst (11/37 cases, 29.7%). 3) (a) 23 cases (35.3%) of tooth resorption were found in ameloblastoma and 11 cases (29.7%) of tooth resorption were found in dentigerous cyst. (b) 15 cases (23.1%) of tooth migration were found in ameloblastoma and 10 cases (27.0%) of tooth migration were found in dentigerous cyst. 4) Several radiographic features. (a) Monolocular type ameloblastoma were seen in 23 cases (35.4) and multilocular type of ameloblastoma were seen in 42 cases (64.6%). Monolocular type of dentigerous cyst were seen in 33 cases (89.2%) and multilocular type was seen in 4 cases. (b) Monolocular type ameloblastoma showed 20 cases (87.0%) of scalloped border but 32 cases (97.0%) of dentigerous cyst showed smooth border. (c) 34 cases (81.0%) of ameloblastoma showed honey-comb appearance, soap-bubble appearance or mixed appearance. But all 4 cases of dentigerous cyst showed multicystic appearance. (d) 12 cases (52.2%) of monolocular type ameloblastoma showed slightly increased radiopacity in surrounding bone

  20. Foreign object detection and removal to improve automated analysis of chest radiographs

    Energy Technology Data Exchange (ETDEWEB)

    Hogeweg, Laurens; Sanchez, Clara I.; Melendez, Jaime; Maduskar, Pragnya; Ginneken, Bram van [Diagnostic Image Analysis Group, Radboud University Nijmegen Medical Centre, Nijmegen 6525 GA (Netherlands); Story, Alistair; Hayward, Andrew [University College London, Centre for Infectious Disease Epidemiology, London NW3 2PF (United Kingdom)

    2013-07-15

    Purpose: Chest radiographs commonly contain projections of foreign objects, such as buttons, brassier clips, jewellery, or pacemakers and wires. The presence of these structures can substantially affect the output of computer analysis of these images. An automated method is presented to detect, segment, and remove foreign objects from chest radiographs.Methods: Detection is performed using supervised pixel classification with a kNN classifier, resulting in a probability estimate per pixel to belong to a projected foreign object. Segmentation is performed by grouping and post-processing pixels with a probability above a certain threshold. Next, the objects are replaced by texture inpainting.Results: The method is evaluated in experiments on 257 chest radiographs. The detection at pixel level is evaluated with receiver operating characteristic analysis on pixels within the unobscured lung fields and an A{sub z} value of 0.949 is achieved. Free response operator characteristic analysis is performed at the object level, and 95.6% of objects are detected with on average 0.25 false positive detections per image. To investigate the effect of removing the detected objects through inpainting, a texture analysis system for tuberculosis detection is applied to images with and without pathology and with and without foreign object removal. Unprocessed, the texture analysis abnormality score of normal images with foreign objects is comparable to those with pathology. After removing foreign objects, the texture score of normal images with and without foreign objects is similar, while abnormal images, whether they contain foreign objects or not, achieve on average higher scores.Conclusions: The authors conclude that removal of foreign objects from chest radiographs is feasible and beneficial for automated image analysis.

  1. Optimizing radiation exposure for CT localizer radiographs

    Energy Technology Data Exchange (ETDEWEB)

    Bohrer, Evelyn; Maeder, Ulf; Fiebich, Martin [Univ. of Applied Sciences, Giessen (Germany). Inst. of Medical Physics and Radiation Protection-IMPS; Schaefer, Stefan; Krombach, Gabriele A. [Univ. Hospital Giessen (Germany). Dept. of Radiology; Noel, Peter B. [Technische Univ. Muenchen (Germany). Dept. of Diagnostic and Interventional Radiology

    2017-08-01

    The trend towards submillisievert CT scans leads to a higher dose fraction of localizer radiographs in CT examinations. The already existing technical capabilities make dose optimization of localizer radiographs worthwhile. Modern CT scanners apply automatic exposure control (AEC) based on attenuation data in such a localizer. Therefore not only this aspect but also the detectability of anatomical landmarks in the localizer for the desired CT scan range adjustment needs to be considered. The effective dose of a head, chest, and abdomen-pelvis localizer radiograph with standard factory settings and user-optimized settings was determined using Monte Carlo simulations. CT examinations of an anthropomorphic phantom were performed using multiple sets of acquisition parameters for the localizer radiograph and the AEC for the subsequent helical CT scan. Anatomical landmarks were defined to assess the image quality of the localizer. CTDI{sub vol} and effective mAs per slice of the helical CT scan were recorded to examine the impact of localizer settings on a helical CT scan. The dose of the localizer radiograph could be decreased by more than 90% while the image quality remained sufficient when selecting the lowest available settings (80 kVp, 20 mA, pa tube position). The tube position during localizer acquisition had a greater impact on the AEC than the reduction of tube voltage and tube current. Except for the use of a pa tube position, all changes of acquisition parameters for the localizer resulted in a decreased total radiation exposure. A dose reduction of CT localizer radiograph is necessary and possible. In the examined CT system there was no negative impact on the modulated helical CT scan when the lowest tube voltage and tube current were used for the localizer.

  2. Physiological interpretations of radiographic findings on malformations of small veins: seriality of cisterns, communications to systemic veins and relationship to muscles

    Science.gov (United States)

    Morita, Nobuo; Terada, Tomoaki; Sato, Morio; Sonomura, Tetsuo

    2014-01-01

    Objectives To re-evaluate the fluoroscopic findings of venous malformation by cine mode cisternography. Methods Using direct injection cine-cisternography, we studied 49 venous malformation lesions in the head and neck of 30 patients who were scheduled to undergo ethanol sclerotherapy. The diameter of definitively measurable 46 lesions was 21.7 ± 10.5 mm (mean ± SD, range: 6.0–48.0 mm). The injection was continued until the draining veins were clearly observed. Outflow communications between cisterns and systemic veins were classified into Type 1, no visible drainage; Type 2, draining into a normal venous system; and Type 3, with abnormally ectatic draining veins. The topological relationships of the lesions to surrounding structures were addressed using computed tomography, magnetic resonance imaging or ultrasonogram. Treatment results were evaluated. Results The direct injection cine-cisternography showed the typical ‘bunch of grapes’ pattern, and revealed serial cisternal, followed by the appearance of outflow/draining veins in all lesions. There were no Type 1, 47 Type 2 and two Type 2 outflow pattern. Satellite lesions emerged via the communicating veins in six lesions. Of the all 49 lesions, 48 were located in or on the muscle fascia. Sclerotherapy was safely completed in all Type 2 lesions with satisfactory results, but for the Type 3 lesions treatment was limited to be partial to avoid complications. Conclusions The present study suggested that communications from venous malformation to the systemic vein are fluoroscopically confirmable. These radiographic findings were thought explainable in relation to developmental nature or facilitating process of venous malformation. PMID:23223003

  3. A modified risk assessment scoring system for post laser in situ keratomileusis ectasia in topographically normal patients

    Directory of Open Access Journals (Sweden)

    Mohammad Miraftab

    2014-01-01

    Conclusion: Our modified ectasia risk scoring system for patients with normal corneal topography can predict post LASIK ectasia risk with acceptable sensitivity and specificity. However, there are still unidentified risk factors for which further studies are required.

  4. A cross-sectional study of the Birmingham Vasculitis Activity Score version 3 in systemic vasculitis

    DEFF Research Database (Denmark)

    Suppiah, Ravi; Mukhtyar, Chetan; Flossmann, Oliver;

    2011-01-01

    Objective. Assessment of disease activity in vasculitis can be achieved using the BVAS, a clinical checklist of relevant symptoms, signs and features of active disease. The aim of this study was to revalidate the BVAS version 3 (BVAS v. 3) in a cohort of patients with systemic vasculitis. Methods....... A total of 238 patients with vasculitis from seven countries in Europe were evaluated at a single time point. Spearman's correlation coefficients were calculated between BVAS v. 3 scores, vasculitis activity index (VAI), physician's global assessment (PGA), the physician's treatment decision, CRP...... and the vasculitis damage index (VDI) to demonstrate that the BVAS v. 3 measures disease activity. Results. WG (63%), Churg-Strauss syndrome (9%) and microscopic polyangiitis (9%) were the most common diagnoses. The BVAS v. 3 showed convergent validity with the VAI [¿¿=¿0.82 (95% CI 0.77, 0.85)], PGA [¿¿=¿0.85 (95...

  5. Spatial resolution measurements of the advanced radiographic capability x-ray imaging system at energies relevant to Compton radiography

    Science.gov (United States)

    Hall, G. N.; Izumi, N.; Landen, O. L.; Tommasini, R.; Holder, J. P.; Hargrove, D.; Bradley, D. K.; Lumbard, A.; Cruz, J. G.; Piston, K.; Lee, J. J.; Romano, E.; Bell, P. M.; Carpenter, A. C.; Palmer, N. E.; Felker, B.; Rekow, V.; Allen, F. V.

    2016-11-01

    Compton radiography provides a means to measure the integrity, ρR and symmetry of the DT fuel in an inertial confinement fusion implosion near peak compression. Upcoming experiments at the National Ignition Facility will use the ARC (Advanced Radiography Capability) laser to drive backlighter sources for Compton radiography experiments and will use the newly commissioned AXIS (ARC X-ray Imaging System) instrument as the detector. AXIS uses a dual-MCP (micro-channel plate) to provide gating and high DQE at the 40-200 keV x-ray range required for Compton radiography, but introduces many effects that contribute to the spatial resolution. Experiments were performed at energies relevant to Compton radiography to begin characterization of the spatial resolution of the AXIS diagnostic.

  6. Post anesthesia recovery rate evaluated by using White fast tracking scoring system

    Directory of Open Access Journals (Sweden)

    Munevera Hadžimešić

    2013-12-01

    Full Text Available Introduction: Postponed recuperation from anesthesia can lead to different complications such as apnoea, aspiration of gastric content whit consequent development of aspiration pneumonia, laryngospasm, bradycardia, and hypoxia. Aim of this research was to determine infl uence of propofol, sevoflurane and isoflurane anesthesia on post anesthesia recovery rate.Methods: This was a prospective study; it included 90 patients hospitalized in period form October 2011 to may 2012 year, all patients included in the study underwent lumbar microdiscectomy surgery. Patients were randomly allocated to one of three groups: group 1: propofol maintained anesthesia, group 2: sevoflurane and group 3: isofl urane maintained anesthesia. Assessments of recovery rate were done 1, 5 and 10 minutes post extubation using White fast tracking scoring system.Results: Significant difference was observed only 1 minute after extubation (p=0,025 finding recovery rate to be superior in propofol group. Propofol group compared to inhaled anesthesia with sevoflurane group, shows significantly faster recovery from anesthesia only one minute after extubation (p=0,046. In comparison of propofol group and isofl urane anesthesia group, statistical significance was noticed one minute following extubation (p=0,008. Comparison of propofol group and inhaled anesthesia groups recovery rates were not significantly different at all times measured. When we were comparing sevoflurane and isoflurane anesthesia, recovery rates shoved no signifi cant statistical difference.Conclusions: Recovery rate evaluated by using White fast tracking scoring system was superior and with fewer complications in propofol maintained in comparison to sevoflurane and isoflurane maintained anesthesia only one minute post extubation, while after fifth and tenth minute difference was lost.

  7. A score system for quality evaluation of RNA sequence tags: an improvement for gene expression profiling

    Directory of Open Access Journals (Sweden)

    Pinheiro Daniel G

    2009-06-01

    Full Text Available Abstract Background High-throughput molecular approaches for gene expression profiling, such as Serial Analysis of Gene Expression (SAGE, Massively Parallel Signature Sequencing (MPSS or Sequencing-by-Synthesis (SBS represent powerful techniques that provide global transcription profiles of different cell types through sequencing of short fragments of transcripts, denominated sequence tags. These techniques have improved our understanding about the relationships between these expression profiles and cellular phenotypes. Despite this, more reliable datasets are still necessary. In this work, we present a web-based tool named S3T: Score System for Sequence Tags, to index sequenced tags in accordance with their reliability. This is made through a series of evaluations based on a defined rule set. S3T allows the identification/selection of tags, considered more reliable for further gene expression analysis. Results This methodology was applied to a public SAGE dataset. In order to compare data before and after filtering, a hierarchical clustering analysis was performed in samples from the same type of tissue, in distinct biological conditions, using these two datasets. Our results provide evidences suggesting that it is possible to find more congruous clusters after using S3T scoring system. Conclusion These results substantiate the proposed application to generate more reliable data. This is a significant contribution for determination of global gene expression profiles. The library analysis with S3T is freely available at http://gdm.fmrp.usp.br/s3t/. S3T source code and datasets can also be downloaded from the aforementioned website.

  8. A scoring system for the assessment of angiographic findings in non-occlusive mesenteric ischemia (NOMI)

    Energy Technology Data Exchange (ETDEWEB)

    Minko, P.; Stroeder, J.; Miodek, J.; Buecker, A.; Katoh, M. [Saarland Univ. Hospital, Homburg/Saar (Germany). Diagnostic and Interventional Radiology; Groesdonk, H.; Schaefers, H.J. [Saarland Univ. Hospital, Homburg/Saar (Germany). Dept. of Thoracic and Cardiovascular Surgery; Graeber, S. [Saarland Univ. Hospital, Homburg/Saar (Germany). Inst. of Medical Biometry, Epidemiology and Medical Informatics

    2012-09-15

    Purpose: To establish a standardized scoring system for angiographic findings in patients with non-occlusive mesenteric ischemia (NOMI). Materials and Methods: In 36 patients (mean age: 72 years), 53 angiographies of the superior mesenteric artery (SMA) were performed for suspected NOMI after cardiac or major aortic surgery. All examinations were performed using a standardized DSA technique. Two experienced radiologists performed a consensus reading blinded to the clinical information, on two occasions with an interval of two weeks. In order to investigate the reproducibility of the criteria, the images were assessed once by an intensivist and a medical student. Image analysis was performed with respect to vessel morphology, reflux of contrast medium into the aorta, small bowel parenchymal contrast enhancement and distension and the delay between arterial injection and portal vein filling. Results: Almost perfect intra-observer correlation was obtained for the assessment of the contrast medium reflux ({kappa} = 0.82) and substantial correlation for the time of portal vein filling ({kappa} = 0.66). Moderate correlations were obtained for the vessel morphology ({kappa} = 0.51), small bowel enhancement ({kappa} = 0.63) and distension ({kappa} = 0.53). Contrast medium reflux into the aorta ({kappa} = 0.77 and 0.63) and the time of portal vein filling ({kappa} = 0.42 and 0.58) resulted in the highest inter-observer correlations between the radiologists and the intensivist as well as the radiologists and the student. Conclusion: In patients with suspected NOMI, using our scoring system yields high intra- and inter-observer correlations, allowing a standardized evaluation of angiographic findings. (orig.)

  9. Correlation of JAK2V617F mutational status in primary myelofibrosis with clinico-hematologic characteristics and international prognostic scoring system scoring: A single center experience

    Directory of Open Access Journals (Sweden)

    Neha Singh

    2015-01-01

    Full Text Available Introduction: Somatic mutation in the exon 14 of Janus Kinase 2 gene is an established diagnostic marker in bcr-abl negative myeloproliferative neoplasms, especially primary idiopathic myelofibrosis (PIMF. Aim: Our primary aim was to find out the correlation between the JAK2V617F mutational status and the clinico-hematologic characteristics, as well as the international prognostic scoring system (IPSS scoring of patients with PIMF. Materials and Methods: Clinical and hematologic features were reviewed for 68 patients with primary idiopathic myelofibrosis (PIMF. JAK2V617F mutation status was analyzed by amplification refractory mutation screening-polymerase chain reaction. The patients were further stratified into low, intermediate-1, intermediate-2 and high-risk groups on the basis of IPSS scoring. Results: The JAK2V617F mutation was detected in 58.8% patients. Univariate analysis of variables at presentation identified that JAK2V617F negative patients were significantly associated with more severe anemia (P = 0.045, younger age (P = 0.008, higher transfusion requirement (P = 0.017, and thrombocytopenia (P = 0.015. Patients who were homozygous for JAK2V617F mutation were associated with thrombocytosis (P = 0.014 and also had higher median total leucocyte count (P = 0.20 than the other groups. No significant correlation was detected between JAK2V617F mutational status and the presence of constitutional symptoms, spleen size, grade of bone marrow fibrosis or prognostic risk stratification of the PIMF patients. Conclusion: The variations in the prognostic implication of PIMF patients with mutation status as stated by various publications worldwide, reinstates the need for larger prospective studies using standardized JAK2V617F quantification methods as well as estimation of other newer molecular markers to develop deeper insight into various molecular alterations involving PIMF patients in India as well as worldwide.

  10. The model for end-stage liver disease score-based system predicts short term mortality better than the current Child-Turcotte-Pugh score-based allocation system during waiting for deceased liver transplantation.

    Science.gov (United States)

    Hong, Geun; Lee, Kwang-Woong; Suh, Sukwon; Yoo, Tae; Kim, Hyeyoung; Park, Min-Su; Choi, Youngrok; Yi, Nam-Joon; Suh, Kyung-Suk

    2013-08-01

    To adopt the model for end-stage liver disease (MELD) score-based system in Korea, the feasibility should be evaluated by analysis of Korean database. The aim of this study was to investigate the feasibility of the MELD score-based system compared with the current Child-Turcotte-Pugh (CTP) based-system and to suggest adequate cut-off to stratify waiting list mortality among Korean population. We included 788 adult patients listed in waiting list in Seoul National University Hospital from January 2008 to May 2011. The short-term survival until 6 months after registration was evaluated. Two hundred forty six (31.2%) patients underwent live donor liver transplantation and 353 (44.8%) patients were still waiting and 121 (15.4%) patients were dropped out due to death. Significant difference was observed when MELD score 24 and 31 were used as cut-off. Three-months survival of Status 2A was 70.2%. However, in Status 2A patients whose MELD score less than 24 (n=82), 86.6% of patients survived until 6 month. Furthermore, patients with high MELD score (≥31) among Status 2B group showed poorer survival rate (45.8%, 3-month) than Status 2A group. In conclusion, MELD score-based system can predict short term mortality better and select more number of high risk patients in Korean population.

  11. Novel scoring system and algorithm for classifying chronic rhinosinusitis: the JESREC Study.

    Science.gov (United States)

    Tokunaga, T; Sakashita, M; Haruna, T; Asaka, D; Takeno, S; Ikeda, H; Nakayama, T; Seki, N; Ito, S; Murata, J; Sakuma, Y; Yoshida, N; Terada, T; Morikura, I; Sakaida, H; Kondo, K; Teraguchi, K; Okano, M; Otori, N; Yoshikawa, M; Hirakawa, K; Haruna, S; Himi, T; Ikeda, K; Ishitoya, J; Iino, Y; Kawata, R; Kawauchi, H; Kobayashi, M; Yamasoba, T; Miwa, T; Urashima, M; Tamari, M; Noguchi, E; Ninomiya, T; Imoto, Y; Morikawa, T; Tomita, K; Takabayashi, T; Fujieda, S

    2015-08-01

    Chronic rhinosinusitis (CRS) can be classified into CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). CRSwNP displays more intense eosinophilic infiltration and the presence of Th2 cytokines. Mucosal eosinophilia is associated with more severe symptoms and often requires multiple surgeries because of recurrence; however, even in eosinophilic CRS (ECRS), clinical course is variable. In this study, we wanted to set objective clinical criteria for the diagnosis of refractory CRS. This was a retrospective study conducted by 15 institutions participating in the Japanese Epidemiological Survey of Refractory Eosinophilic Chronic Rhinosinusitis (JESREC). We evaluated patients with CRS treated with endoscopic sinus surgery (ESS), and risk of recurrence was estimated using Cox proportional hazard models. Multiple logistic regression models and receiver operating characteristics curves were constructed to create the diagnostic criterion for ECRS. We analyzed 1716 patients treated with ESS. To diagnose ECRS, the JESREC scoring system assessed unilateral or bilateral disease, the presence of nasal polyps, blood eosinophilia, and dominant shadow of ethmoid sinuses in computed tomography (CT) scans. The cutoff value of the score was 11 points (sensitivity: 83%, specificity: 66%). Blood eosinophilia (>5%), ethmoid sinus disease detected by CT scan, bronchial asthma, aspirin, and nonsteroidal anti-inflammatory drugs intolerance were associated significantly with recurrence. We subdivided CRSwNP in non-ECRS, mild, moderate, and severe ECRS according to our algorithm. This classification was significantly correlated with prognosis. It is notable that this algorithm may give useful information to clinicians in the refractoriness of CRS before ESS or biopsy. © 2015 The Authors. Allergy Published by John Wiley & Sons Ltd.

  12. Scoring System for Multiple Organ Dysfunction in Adult Horses with Acute Surgical Gastrointestinal Disease

    OpenAIRE

    McConachie, E.; Giguère, S; Barton, M.H.

    2016-01-01

    Background The prevalence of multiple organ dysfunction syndrome (MODS) in horses with acute surgical gastrointestinal (GI) disease is unknown. Currently, there are no validated criteria to confirm MODS in adult horses. Objectives To develop criteria for a MODS score for horses with acute surgical colic (MODS SGI) and evaluate the association with 6‐month survival. To compare the MODS SGI score with a MODS score extrapolated from criteria used in people (MODS EQ). Animals Adult horses that re...

  13. Comparison of the four proposed Apgar scoring systems in the assessment of birth asphyxia and adverse early neurologic outcomes.

    Directory of Open Access Journals (Sweden)

    Hosein Dalili

    Full Text Available To compare the Conventional, Specified, Expanded and Combined Apgar scoring systems in predicting birth asphyxia and the adverse early neurologic outcomes.This prospective cohort study was conducted on 464 admitted neonates. In the delivery room, after delivery the umbilical cord was double clamped and a blood samples was obtained from the umbilical artery for blood gas analysis, meanwhile on the 1- , 5- and 10- minutes Conventional, Specified, Expanded, and Combined Apgar scores were recorded. Then the neonates were followed and intracranial ultrasound imaging was performed, and the following information were recorded: the occurrence of birth asphyxia, hypoxic Ischemic Encephalopathy (HIE, intraventricular hemorrhage (IVH, and neonatal seizure.The Combined-Apgar score had the highest sensitivity (97% and specificity (99% in predicting birth asphyxia, followed by the Specified-Apgar score that was also highly sensitive (95% and specific (97%. The Expanded-Apgar score was highly specific (95% but not sensitive (67% and the Conventional-Apgar score had the lowest sensitivity (81% and low specificity (81% in predicting birth asphyxia. When adjusted for gestational age, only the low 5-minute Combined-Apgar score was independently associated with the occurrence of HIE (B = 1.61, P = 0.02 and IVH (B = 2.8, P = 0.01.The newly proposed Combined-Apgar score is highly sensitive and specific in predicting birth asphyxia and also is a good predictor of the occurrence of HIE and IVH in asphyxiated neonates.

  14. Supraclavicular scalenectomy for thoracic outlet syndrome--functional outcomes assessed using the DASH scoring system.

    LENUS (Irish Health Repository)

    Glynn, Ronan W

    2012-02-01

    To evaluate supraclavicular scalenectomy ± cervical rib excision for thoracic outlet syndrome (TOS), employing Disability of Arm, Shoulder, and Hand (DASH) scoring for functional assessment post-decompression.

  15. Rapid display of radiographic images

    Science.gov (United States)

    Cox, Jerome R., Jr.; Moore, Stephen M.; Whitman, Robert A.; Blaine, G. James; Jost, R. Gilbert; Karlsson, L. M.; Monsees, Thomas L.; Hassen, Gregory L.; David, Timothy C.

    1991-07-01

    The requirements for the rapid display of radiographic images exceed the capabilities of widely available display, computer, and communications technologies. Computed radiography captures data with a resolution of about four megapixels. Large-format displays are available that can present over four megapixels. One megapixel displays are practical for use in combination with large-format displays and in areas where the viewing task does not require primary diagnosis. This paper describes an electronic radiology system that approximates the highest quality systems, but through the use of several interesting techniques allows the possibility of its widespread installation throughout hospitals. The techniques used can be grouped under three major system concepts: a local, high-speed image server, one or more physician's workstations each with one or more high-performance auxiliary displays specialized to the radiology viewing task, and dedicated, high-speed communication links between the server and the displays. This approach is enhanced by the use of a progressive transmission scheme to decrease the latency for viewing four megapixel images. The system includes an image server with storage for over 600 4-megapixel images and a high-speed link. A subsampled megapixel image is fetched from disk and transmitted to the display in about one second followed by the full resolution 4-megapixel image in about 2.5 seconds. Other system components include a megapixel display with a 6-megapixel display memory space and frame-rate update of image roam, zoom, and contrast. Plans for clinical use are presented.

  16. Monitoring of Human Uterus Transplantation With Cervical Biopsies: A Provisional Scoring System for Rejection.

    Science.gov (United States)

    Mölne, J; Broecker, V; Ekberg, J; Nilsson, O; Dahm-Kähler, P; Brännström, M

    2016-11-21

    Until now, absolute uterine factor infertility has been the major untreatable form of female infertility. Uterus transplantation has recently proven to be the first successful treatment for absolute uterine factor infertility, with demonstration of live births. In this study, live donation uterus transplantation was performed in nine women. In total, 163 cervical biopsies (149 protocol, 14 follow-up) were taken to detect histopathological signs of rejection. Based on experience from animal experiments, we used a three-grade scoring system to evaluate biopsies systematically. Nine episodes of rejection were diagnosed in five patients: grade 1 in six episodes, grade 2 in two episodes, and grade 3 in one episode. Treatment decisions were based on histopathology, and all rejection episodes were reversed after treatment. The biopsies were reviewed retrospectively, and immunohistochemistry was performed to characterize the inflammatory infiltrates. A borderline category was introduced to avoid overtreatment of patients. Based on our review of all biopsies, we put forward a simple grading system for monitoring of rejection and to guide immunosuppressive treatment in uterus transplantation.

  17. Heightened clinical utility of smartphone versus body-worn inertial system for shoulder function B-B score.

    Science.gov (United States)

    Pichonnaz, Claude; Aminian, Kamiar; Ancey, Céline; Jaccard, Hervé; Lécureux, Estelle; Duc, Cyntia; Farron, Alain; Jolles, Brigitte M; Gleeson, Nigel

    2017-01-01

    The B-B Score is a straightforward kinematic shoulder function score including only two movements (hand to the Back + lift hand as to change a Bulb) that demonstrated sound measurement properties for patients for various shoulder pathologies. However, the B-B Score results using a smartphone or a reference system have not yet been compared. Provided that the measurement properties are comparable, the use of a smartphone would offer substantial practical advantages. This study investigated the concurrent validity of a smartphone and a reference inertial system for the measurement of the kinematic shoulder function B-B Score. Sixty-five patients with shoulder conditions (with rotator cuff conditions, adhesive capsulitis and proximal humerus fracture) and 20 healthy participants were evaluated using a smartphone and a reference inertial system. Measurements were performed twice, alternating between two evaluators. The B-B Score differences between groups, differences between devices, relationship between devices, intra- and inter-evaluator reproducibility were analysed. The smartphone mean scores (SD) were 94.1 (11.1) for controls and 54.1 (18.3) for patients (P smartphone intra-evaluator ICC was 0.92, the bias 1.5 and the LOA -17.4 to 20.3. The smartphone inter-evaluator ICC was 0.92, the bias 1.5 and the LOA -16.9 to 20.0. The B-B Score results measured with a smartphone were comparable to those of an inertial system. While single measurements diverged in some cases, the intra- and inter-evaluator reproducibility was excellent and was equivalent between devices. The B-B score measured with a smartphone is straightforward and as efficient as a reference inertial system measurement.

  18. Defining multiple organ failure after major trauma: A comparison of the Denver, Sequential Organ Failure Assessment and Marshall scoring systems

    Science.gov (United States)

    Hutchings, Lynn; Watkinson, Peter; Young, J Duncan; Willett, Keith

    2017-01-01

    Background Postinjury multiple organ failure (MOF) remains a significant cause of morbidity and mortality. A large number of scoring systems have been proposed to define MOF, with no gold-standard. The purpose of this study was to compare three commonly used scores – the Denver PostInjury Multiple Organ Failure Score, the Sequential Organ Failure Assessment (SOFA) and the Marshall Multiple Organ Dysfunction Score – by descriptive analysis of the populations described by each score, and their predictive ability for mortality. Methods An observational cohort study was performed at a UK trauma center on major trauma patients requiring ICU admission from 2003-2011. A novel trauma database was created, merging national audit data with local electronic monitoring systems. Data were collected on demographics, laboratory results, pharmacy, interventions, and hourly physiological monitoring. The primary outcome measure was mortality within 100 days from injury. Sensitivity analyses and receiver operating characteristic (ROC) curves were used to assess the predictive ability of MOF scores for mortality. Results In total, 491 patients were included in the trauma database. MOF incidence ranged from 22.8% (Denver) to 40.5% (Marshall) to 58.5% (SOFA). MOF definition did not affect timing of onset, but did alter duration and organ failure patterns. Overall mortality was 10.6%, with Denver MOF associated with the greatest increased risk of death (Hazard Ratio 3.87, 95% CI 2.24-6.66). No significant difference was observed in area under the ROC curve values between scores. Marked differences were seen in relative predictors, with Denver showing highest specificity (81%) and SOFA highest sensitivity (73%) for mortality. Conclusions The choice of MOF scoring system affects incidence, duration, organ dysfunction patterns and mortality prediction. We would recommend use of the Denver score since it is simplest to calculate, identifies a high-risk group of patients and has the

  19. A clinical and radiographic study to evaluate the rate of retraction of maxillary canine using nickel-titanium closed coil spring with two different bracket systems

    Directory of Open Access Journals (Sweden)

    P Adarsh Reddy

    2014-01-01

    Full Text Available Objectives: This study compares the efficiency of self-ligating brackets with the conventional preadjusted edgewise (PEA brackets during maxillary canine retraction using nickel-titanium closed coil springs. Materials and Methods: The sample comprised of 20 healthy patients (10 males and 10 females, within age groups 16-26 years (mean, 20 years having Class I malocclusion with bimaxillary protrusion. All patients underwent bilateral extraction of the maxillary first bicuspids and retraction of the maxillary canines with fixed self-ligating brackets (3M Smart clip and PEA appliance (3M Gemini. The initial records included standard intra- and extra-oral photographs, study models, lateral cephalograms, and panoramic radiographs. Results: The mean distal movement of canines in self-ligating brackets was 0.89 mm/mo with standard deviation of 0.255 and in preadjusted edgewise brackets, the mean distal movement of canines was 0.87 mm/mo with standard deviation of 0.214. The mean tipping of canine in self-ligating brackets was 7.45 ± 1.050(0 and in PEA brackets it was 7.70° ± 1.21°. The mean rotation of canine in self-ligating brackets was 7.65° ± 3.47° and in preadjusted edgewise appliance it was 12.30° ± 3.08°. Conclusion: The rates of distal movement of the maxillary canines were similar with both conventional and self-ligating brackets. Rotation of the maxillary canines during retraction was minimized with self-ligating brackets in comparison to conventional bracket systems.

  20. Carpal erosions in children with juvenile idiopathic arthritis: repeatability of a newly devised MR-scoring system

    Energy Technology Data Exchange (ETDEWEB)

    Boavida, Peter [Great Ormond Street Hospital for Children, Department of Radiology, London (United Kingdom); Lambot-Juhan, Karen [Hospital Necker Enfants Malades, Department of Radiology, Paris (France); Ording Mueller, Lil-Sofie [Oslo University Hospital, Department of Radiology, Oslo (Norway); Damasio, Beatrice; Malattia, Clara [Ospedale Pediatrico Gaslini, Department of Rheumatology, Genoa (Italy); Tanturri de Horatio, Laura [Ospedale Pediatrico Bambino Gesu, Department of Radiology, Rome (Italy); Owens, Catherine M. [Great Ormond Street Hospital for Children, Department of Radiology, London (United Kingdom); UCL, Institute of Child Health, London (United Kingdom); Rosendahl, Karen [Haukeland University Hospital, Department of Radiology, Bergen (Norway); University of Bergen, Department of Clinical Medicine, Bergen (Norway)

    2015-12-15

    Juvenile idiopathic arthritis (JIA) is characterized by synovial inflammation, with potential risk of developing progressive joint destruction. Personalized state-of-the-art treatment depends on valid markers for disease activity to monitor response; however, no such markers exist. To evaluate the reliability of scoring of carpal bone erosions on MR in children with JIA using two semi-quantitative scoring systems. A total of 1,236 carpal bones (91 MR wrist examinations) were scored twice by two independent pediatric musculoskeletal radiologists. Bony erosions were scored according to estimated bone volume loss using a 0-4 scale and a 0-10 scale. An aggregate erosion score comprising the sum total carpal bone volume loss was calculated for each examination. The 0-4 scoring system resulted in good intra-reader agreement and moderate to good inter-observer agreement in the assessment of individual bones. Fair and moderate agreement were achieved for inter-reader and intra-reader agreement, respectively, using the 0-10 scale. Intra- and particularly inter-reader aggregate score variability were much less favorable, with wide limits of agreement. Further analysis of erosive disease patterns compared with normal subjects is required, and to facilitate the development of an alternative means of quantifying disease. (orig.)

  1. Comparative analysis of human and bovine teeth: radiographic density

    Directory of Open Access Journals (Sweden)

    Jefferson Luis Oshiro Tanaka

    2008-12-01

    Full Text Available Since bovine teeth have been used as substitutes for human teeth in in vitro dental studies, the aim of this study was to compare the radiographic density of bovine teeth with that of human teeth to evaluate their usability for radiographic studies. Thirty bovine and twenty human teeth were cut transversally in 1 millimeter-thick slices. The slices were X-rayed using a digital radiographic system and an intraoral X-ray machine at 65 kVp and 7 mA. The exposure time (0.08 s and the target-sensor distance (40 cm were standardized for all the radiographs. The radiographic densities of the enamel, coronal dentin and radicular dentin of each slice were obtained separately using the "histogram" tool of Adobe Photoshop 7.0 software. The mean radiographic densities of the enamel, coronal dentin and radicular dentin were calculated by the arithmetic mean of the slices of each tooth. One-way ANOVA demonstrated statistically significant differences for the densities of bovine and human enamel (p 0.05. Based on the results, the authors concluded that: a the radiographic density of bovine enamel is significantly higher than that of human enamel; b the radiodensity of bovine coronal dentin is statistically lower than the radiodensity of human coronal dentin; bovine radicular dentin is also less radiodense than human radicular dentin, although this difference was not statistically significant; c bovine teeth should be used with care in radiographic in vitro studies.

  2. Development and validation of a visual body condition scoring system for dairy goats with picture-based training.

    Science.gov (United States)

    Vieira, A; Brandão, S; Monteiro, A; Ajuda, I; Stilwell, G

    2015-09-01

    Body condition scoring (BCS) is the most widely used method to assess changes in body fat reserves, which reflects its high potential to be included in on-farm welfare assessment protocols. Currently used scoring systems in dairy goats require animal restraint for body palpation. In this study, the Animal Welfare Indicators project (AWIN) proposes to overcome this constraint by developing a scoring system based only on visual assessment. The AWIN visual body condition scoring system highlights representative animals from 3 categories: very thin, normal, and very fat, and was built from data sets with photographs of animals scored by a commonly used 6-point scoring system that requires palpation in 2 anatomical regions. Development of the AWIN scoring system required 3 steps: (1) identification and validation of a body region of interest; (2) sketching the region from photographs; and (3) creation of training material. The scoring system's reliability was statistically confirmed. An initial study identified features in the rump region from which we could compute a set of body measurements (i.e., measures based on anatomical references of the rump region) that showed a strong correlation with the assigned BCS. To validate the result, we collected a final data set from 171 goats. To account for variability in animal size and camera position, we mapped a subset of features to a standard template and aligned all the rump images before computing the body measurements. Scientific illustrations were created from the aligned images of animals identified as representative of each category to increase clarity and reproducibility. For training material, we created sketches representing the threshold between consecutive categories. Finally, we conducted 2 field reliability studies. In the first test, no training was given to 4 observers, whereas in the second, training using the threshold images was delivered to the same observers. In the first experiment, interobserver results

  3. [Impact of International Association of Urological Pathology Gleason scoring system on prostatic carcinoma grading: a preliminary analysis of 185 cases].

    Science.gov (United States)

    Wang, Gongwei; Shen, Danhua

    2014-10-01

    To explore the impact of the 2005 International Association of Urological Pathology (ISUP) Gleason score (GS) system on prostatic carcinoma grading. Using the 1977 revision and ISUP version of GS system, 112 needle biopsies, 18 transurethral resections of the prostate and 55 radical prostatectomies were scored. The proportion of grading discrepancy was observed and compared between the two versions of GS. Gleason scores of 3+3, 3+4 and 4+3 accounted for 47.0% (87/185), 11.4% (21/185) and 17.3% (32/185) in the modified system, and accounted for 25.9% (48/185), 21.6% (40/185) and 27.6 % (51/185) in ISUP system, respectively. The percentages of primary grade by modified vs. ISUP system were 62.7% (116/185) vs.50.8% (94/185) for grade 3, and 31.4% (58/185) vs. 41.6% (77/185) for grade 4. The percentages of secondary grade by modified vs. ISUP system were 65.9% (122/185) vs. 54.6% (101/185) for grade 3, and 21.1% (39/185) vs. 31.4% (58/185) for grade 4. ISUP system is different from the modified system. Compared with the modified system, the proportion scored by ISUP system tends to decline for GS 3+3 but increase for GS 3+4 and 4+3.

  4. STUDY OF EFFECTIVE TIME OF UNDILUTED FIXINGSOLUTIONS INLIGHTENING OF THE HIGH DENSITY PERIAPICAL RADIOGRAPHS

    Directory of Open Access Journals (Sweden)

    A ZAMANI NASER

    2003-12-01

    application form were prepared and requested their opinion about the result of radiographs by observation and comparing them with positive and negative radiographsand give them score from Ito5. Result: The result of densitometry showed that the density of all radiographs after inserting in undiluted fixing solution were decreased. All dentists who compared the lightened radiographs with positive control and negative control has the same opinion that: The radiographs have desirable diagnostic quality. Discussion: Totally the undiuted fixed solution is a suitable solution for decreasing the density and giving the diagnostic quality to dark radiographs and prevents reexposure of patients and decreases the extra costs.

  5. Kruis scoring system and Manning's criteria in diagnosis of irritable bowel syndrome: is it better to use combined?

    Science.gov (United States)

    Doğan, U B; Unal, S

    1996-01-01

    Irritable bowel syndrome (IBS) is characterized by abdominal pain and alteration of bowel habits. Manning et al. have reported that certain symptoms distinguished IBS from organic gastrointestinal disease (OGD); these were pain relieved by defecation, looser or more frequent stools at the onset of pain, abdominal distention, mucus, and a feeling of incomplete evacuation. Another simple scoring system for discriminating IBS from OGD that incorporated historical data, physical examination findings, and basic investigations was first devised by Kruis et al. In differential diagnosis of IBS from OGD, to evaluate the reliability of Manning's criteria and Kruis scoring system when used apart or combined; we studied 347 out-patients who completed a bowel disease questionnaire which objectively measured Manning's criteria and scoring system of Kruis. The group included 165 patients with IBS and 182 patients with OGD. The Manning's criteria discriminated IBS from OGD with a sensitivity of 90% and a specificity of 87% if three or more items were regarded as positive. Also the Kruis scoring system discriminated IBS from OGD with a sensitivity of 81% and a specificity of 91%. When used together, these systems discriminated IBS from OGD with a sensitivity of 80% and a specificity of 97%. Manning's criteria and Kruis scoring system had a strong correlation when compared in IBS, but not in OGD.

  6. New Combined Scoring System for Predicting Respiratory Failure in Iraqi Patients with Guillain-Barré Syndrome

    Directory of Open Access Journals (Sweden)

    Zaki Noah Hasan

    2010-09-01

    Full Text Available The Guillain-Barré syndrome (GBS is an acute post-infective autoimmune polyradiculoneuropathy, it is the commonest peripheral neuropathy causing respiratory failure. The aim of the study is to use the New Combined Scoring System in anticipating respiratory failure in order to perform elective measures without waiting for emergency situations to occur.
    Patients and methods: Fifty patients with GBS were studied. Eight clinical parameters (including progression of patients to maximum weakness, respiratory rate/minute, breath holding
    count (the number of digits the patient can count in holding his breath, presence of facial muscle weakness (unilateral or bilateral, presence of weakness of the bulbar muscle, weakness of the neck flexor muscle, and limbs weakness were assessed for each patient and a certain score was given to
    each parameter, a designed combined score being constructed by taking into consideration all the above mentioned clinical parameters. Results and discussion: Fifteen patients (30% that were enrolled in our study developed respiratory failure. There was a highly significant statistical association between the development of respiratory failure and the lower grades of (bulbar muscle weakness score, breath holding count scores, neck muscle weakness score, lower limbs and upper limbs weakness score , respiratory rate score and the total sum score above 16 out of 30 (p-value=0.000 . No significant statistical difference was found regarding the progression to maximum weakness (p-value=0.675 and facial muscle weakness (p-value=0.482.
    Conclusion: The patients who obtained a combined score (above 16’30 are at great risk of having respiratory failure.

  7. Correlation of delta high-resolution computed tomography (HRCT) score with delta clinical variables in early systemic sclerosis (SSc) patients

    Science.gov (United States)

    Euathrongchit, Juntima; Wattanawittawas, Pittaporn; Kasitanon, Nuntana

    2016-01-01

    Background The correlation of changes (delta: Δ) of high-resolution computed tomography (HRCT) score with the Δ of other clinical variables has not been well studied. The purpose of this study was to determine the correlation of Δ HRCT score with Δ percent predicted forced vital capacity (%pFVC), Δ modified Rodnan Skin Score (mRSS), Δ erythrocyte sedimentation rate (ESR), and Δ percent of oxygen saturation at room air (%SpO2) in patients with early systemic sclerosis (SSc). Methods We used an inception cohort of early-SSc patients seen at the Rheumatology Clinic, Chiang Mai University, Thailand, between January 2010 and June 2014. All patients underwent HRCT at study entry and every 12 months thereafter. Thirty-one SSc patients who underwent pulmonary function test (PFT) within 12 weeks of their corresponding HRCT at baseline and last visit were identified. The extent of ground glass (GG), lung fibrosis (Fib), bronchiectasis (B), and honeycombing (HC) was scored, and then aggregated to produce a total (t) HRCT score. Results Mean ± SD age and disease duration from non-Raynaud’s phenomenon (NRP) to undergo HRCT at baseline were 52.2±8.8 years and 11.7±7.1 months, respectively. Seventeen (54.8%) patients were female and 20 (64.5%) were classified as dcSSc. The mean ± SD interval between the two HRCT tests was 16.0±7.2 months. The Δ HRCT scores [total fibrosis scores (t-Fib), total bronchiectasis scores (t-B), and total HRCT score (t-HRCT) scores] and Δ mRSS, but not Δ %pFVC, showed significant change over the observation period. We found significant correlation of Δ total honeycombing scores (t-HC) with Δ ESR (r=−0.44, P<0.05), and Δ t-Fib with Δ %SpO2 (r=−0.38, P<0.05). However, no significant correlation of any Δ HRCT scores with Δ %pFVC and Δ mRSS were observed. Conclusions In this study, the changes in the HRCT scores were greater than %pFVC; this, along with their correlations with the changes in ESR and %SpO2, suggest that HRCT

  8. Chest radiographic findings of leptospirosis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Mee Hyun; Jung, Hee Tae; Lee, Young Joong; Yoon, Jong Sup [Hallym University College of Medicine, Seoul (Korea, Republic of)

    1986-04-15

    1. A study on chest radiographic findings of 54 cases with pneumonia like symptoms was performed. Of 54 cases, 8 cases were confirmed to be leptospirosis and 7 cases were leptospirosis combined with Korean hemorrhagic fever. 2. Of 8 cases of leptospirosis, 4 cases showed abnormal chest radiographic findings: acinar nodular type 2, massive confluent consolidation type 2. Of 7 cases of leptospirosis combined with Korean hemorrhagic fever: acinar nodular type 3, massive confluent consolidation type 1, and increased interstitial markings type 1 respectively. 3. It was considered to be difficult to diagnose the leptospirosis on chest radiographic findings alone, especially the case combined with Korean hemorrhagic fever.

  9. Distinct characteristics and new prognostic scoring system for Chinese patients with Waldenstr(o)m macroglobulinemia

    Institute of Scientific and Technical Information of China (English)

    Yi Shuhua; Cui Rui; Li Zengjun; An Gang; Qi Junyuan; Zou Dehui; Zhang Peihong

    2014-01-01

    Background Waldenstr(o)m macroglobulinemia (WM) is an uncommon lymphoid malignancy.The characteristics and prognosis of WM have never been systematically studied in the East.Methods We analyzed the clinical characteristics and the prognostic factors of 90 Chinese WM patients,and compared them with the Western reports.Results The median age was 62 years old with a male-to-female ratio of 3.74.The most common symptoms at diagnosis were fatigue (77.8%) and bleeding (20%),while only 6 patients (6.7%) were asymptomatic.In the univariate analysis,age >62 years,thrombocytopenia,leucopenia,cytopenias ≥2,and high risk on the international prognostic scoring system for WM were the adverse risk factors,but only age >62 years and ≥2 cytopenias were the independent prognostic factors in the multivariate analysis.Using age <62 years and ≥2 cytopenias,three significantly different prognostic groups could been distinguished,with 5-year overall survival of 71.6%,48.6%,and 17.0% (P <0.001).Conclusion Distinct characteristics exist in WM in China compared to the West and we describe a new simple prognostic model for newly diagnosed WM patients.

  10. AGRICULTURAL COOPERATIVE FIRMS: BUDGETARY ADJUSTMENTS AND ANALYSIS OF CREDIT ACCESS APPLYING SCORING SYSTEMS

    Directory of Open Access Journals (Sweden)

    Giuseppe Bonazzi

    2014-01-01

    Full Text Available Cooperatives are one of the most important types of companies in the agricultural sector. Cooperatives allow overcoming the limitations of the fragmentation of agricultural property, increasing the level of production of small-sized farms and selling the product so that it reaches a sufficient critical mass. Moreover, cooperatives are often characterized by undercapitalization and even difficult credit access because banks conduct their analysis applying rating systems that do not take into account the typicality of the cooperative budget. To assess this topic, in this article, an analysis has been conducted on a sample of 100 cooperatives, making adjustments to the annual budget in order to consider the typicality of their annual accounts. The results of the analysis show that suggested adjustments allow a more correct expression of the economic results and capital adequacy of the cooperative and that the results, expressed in terms of scoring, are higher than that achieved by a traditional analysis. This methodology could improve the credit access capacity for agricultural cooperatives and then reduce financial constraints, particularly in developing countries.

  11. Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies.

    Directory of Open Access Journals (Sweden)

    Stephanie Panzer

    Full Text Available The purpose of this study was to develop a checklist for standardized assessment of soft tissue preservation in human mummies based on whole-body computed tomography examinations, and to add a scoring system to facilitate quantitative comparison of mummies. Computed tomography examinations of 23 mummies from the Capuchin Catacombs of Palermo, Sicily (17 adults, 6 children; 17 anthropogenically and 6 naturally mummified and 7 mummies from the crypt of the Dominican Church of the Holy Spirit of Vilnius, Lithuania (5 adults, 2 children; all naturally mummified were used to develop the checklist following previously published guidelines. The scoring system was developed by assigning equal scores for checkpoints with equivalent quality. The checklist was evaluated by intra- and inter-observer reliability. The finalized checklist was applied to compare the groups of anthropogenically and naturally mummified bodies. The finalized checklist contains 97 checkpoints and was divided into two main categories, "A. Soft Tissues of Head and Musculoskeletal System" and "B. Organs and Organ Systems", each including various subcategories. The complete checklist had an intra-observer reliability of 98% and an inter-observer reliability of 93%. Statistical comparison revealed significantly higher values in anthropogenically compared to naturally mummified bodies for the total score and for three subcategories. In conclusion, the developed checklist allows for a standardized assessment and documentation of soft tissue preservation in whole-body computed tomography examinations of human mummies. The scoring system facilitates a quantitative comparison of the soft tissue preservation status between single mummies or mummy collections.

  12. Examining the Relationship Between the Functional Movement Screen and the Landing Error Scoring System in an Active, Male Collegiate Population.

    Science.gov (United States)

    Everard, Eoin M; Harrison, Andrew J; Lyons, Mark

    2017-05-01

    Everard, EM, Harrison, AJ, and Lyons, M. Examining the relationship between the functional movement screen and the landing error scoring system in an active, male collegiate population. J Strength Cond Res 31(5): 1265-1272, 2017-In recent years, there has been an increasing focus on movement screening as the principal aspect of preparticipation testing. Two of the most common movement screening tools are the Functional Movement Screen (FMS) and the Landing Error Scoring System (LESS). Several studies have examined the reliability and validity of these tools, but so far, there have been no studies comparing the results of these 2 screening tools against each other. Therefore, the purpose of this study was to determine the relationship between FMS scores and LESS scores. Ninety-eight male college athletes actively competing in sport (Gaelic games, soccer, athletics, boxing/mixed martial arts, Olympic weightlifting) participated in the study and performed the FMS and LESS screens. Both the 21-point and 100-point scoring systems were used to score the FMS. Spearman's correlation coefficients were used to determine the relationship between the 2 screening scores. The results showed a significant moderate correlation between FMS and LESS scores (rho 100 and 21 point = -0.528; -0.487; p < 0.001). In addition, r values of 0.26 and 0.23 indicate a poor shared variance between the 2 screens. The results indicate that performing well in one of the screens does not necessarily equate to performing well in the other. This has practical implications as it highlights that both screens may assess different movement patterns and should not be used as a substitute for each other.

  13. Segmentation and determination of joint space width in foot radiographs

    Science.gov (United States)

    Schenk, O.; de Muinck Keizer, D. M.; Bernelot Moens, H. J.; Slump, C. H.

    2016-03-01

    Joint damage in rheumatoid arthritis is frequently assessed using radiographs of hands and feet. Evaluation includes measurements of the joint space width (JSW) and detection of erosions. Current visual scoring methods are timeconsuming and subject to inter- and intra-observer variability. Automated measurement methods avoid these limitations and have been fairly successful in hand radiographs. This contribution aims at foot radiographs. Starting from an earlier proposed automated segmentation method we have developed a novel model based image analysis algorithm for JSW measurements. This method uses active appearance and active shape models to identify individual bones. The model compiles ten submodels, each representing a specific bone of the foot (metatarsals 1-5, proximal phalanges 1-5). We have performed segmentation experiments using 24 foot radiographs, randomly selected from a large database from the rheumatology department of a local hospital: 10 for training and 14 for testing. Segmentation was considered successful if the joint locations are correctly determined. Segmentation was successful in only 14%. To improve results a step-by-step analysis will be performed. We performed JSW measurements on 14 randomly selected radiographs. JSW was successfully measured in 75%, mean and standard deviation are 2.30+/-0.36mm. This is a first step towards automated determination of progression of RA and therapy response in feet using radiographs.

  14. Sarcoidosis: radiographic manifestations in the nails and distal phalanges

    Energy Technology Data Exchange (ETDEWEB)

    Albers, Brittany K.; Garner, Hillary W. [Mayo Clinic, Department of Radiology, Jacksonville, FL (United States); Sluzevich, Jason C. [Mayo Clinic, Department of Dermatology, Jacksonville, FL (United States)

    2016-05-15

    Sarcoidosis is a granulomatous disease which can affect multiple organ systems. Clinical and radiologic manifestations depend on the organ system involved and the chronicity of disease. Nail involvement in sarcoidosis is rare, but is clinically relevant as it indicates chronic systemic disease. Nail abnormalities can be identified radiographically, and when seen in patients with known or suspected sarcoidosis, should prompt careful evaluation of the underlying bone for osseous involvement. We describe a case of sarcoidosis with radiographic findings in the nails and distal phalangeal tufts, which were indicative of nail and osseous sarcoid involvement and strongly supported the presence of chronic systemic disease. Although the nail findings resolved clinically and on radiographs after treatment, the osseous findings showed only minimal improvement. To our knowledge, the radiographic findings of nail sarcoidosis have not been previously addressed in the literature. (orig.)

  15. The lungs in rheumatoid arthritis - a clinical, radiographic and ...

    African Journals Online (AJOL)

    found between any abnormality of the respiratory system .... Profile of patients with disease affecting the lungs. Me'". Mean. Diff Prod. Birds! Dysp- Club-- age dura'. Class. Sem- ..... radiographic and histological findings.2J The use of high-.

  16. Starreveld scoring method in diagnosing childhood constipation

    NARCIS (Netherlands)

    Kokke, F.T.; Sittig, J.S.; de Bruijn, A.; Wiersma, T.; van Rijn, R.R.; Limpen, J.L.; Houwen, R.H.; Fischer, K.; Benninga, M.A.

    2010-01-01

    Four scoring methods exist to assess severity of fecal loading on plain abdominal radiographs in constipated patients (Barr-, Starreveld-, Blethyn- and Leech). So far, the Starreveld score was used only in adult patients. To determine accuracy and intra- and inter-observer agreement of the Starrevel

  17. A comprehensive scoring system to measure healthy community design in land use plans and regulations.

    Science.gov (United States)

    Maiden, Kristin M; Kaplan, Marina; Walling, Lee Ann; Miller, Patricia P; Crist, Gina

    2017-02-01

    Comprehensive land use plans and their corresponding regulations play a role in determining the nature of the built environment and community design, which are factors that influence population health and health disparities. To determine the level in which a plan addresses healthy living and active design, there is a need for a systematic, reliable and valid method of analyzing and scoring health-related content in plans and regulations. This paper describes the development and validation of a scoring tool designed to measure the strength and comprehensiveness of health-related content found in land use plans and the corresponding regulations. The measures are scored based on the presence of a specific item and the specificity and action-orientation of language. To establish reliability and validity, 42 land use plans and regulations from across the United States were scored January-April 2016. Results of the psychometric analysis indicate the scorecard is a reliable scoring tool for land use plans and regulations related to healthy living and active design. Intraclass correlation coefficients (ICC) scores showed strong inter-rater reliability for total strength and comprehensiveness. ICC scores for total implementation scores showed acceptable consistency among scorers. Cronbach's alpha values for all focus areas were acceptable. Strong content validity was measured through a committee vetting process. The development of this tool has far-reaching implications, bringing standardization of measurement to the field of land use plan assessment, and paving the way for systematic inclusion of health-related design principles, policies, and requirements in land use plans and their corresponding regulations.

  18. Using Multivariate Base Rates to Interpret Low Scores on an Abbreviated Battery of the Delis-Kaplan Executive Function System.

    Science.gov (United States)

    Karr, Justin E; Garcia-Barrera, Mauricio A; Holdnack, James A; Iverson, Grant L

    2017-05-01

    Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests. The sample consisted of 1,050 healthy individuals (ages 16-89) from the standardization sample for the Delis-Kaplan Executive Function System (D-KEFS). Seven individual test scores from the Trail Making Test, Color-Word Interference Test, and Verbal Fluency Test were analyzed. Low test scores, as defined by commonly used clinical cut-offs (i.e., ≤25th, 16th, 9th, 5th, and 2nd percentiles), occurred commonly among the adult portion of the D-KEFS normative sample (e.g., 62.8% of the sample had one or more scores ≤16th percentile, 36.1% had one or more scores ≤5th percentile), and the prevalence of low scores increased with lower intelligence and fewer years of education. The multivariate base rates (BR) in this article allow clinicians to understand the normal frequency of low scores in the general population. By use of these BRs, clinicians and researchers can improve the accuracy with which they identify executive dysfunction in clinical groups, such as those with traumatic brain injury or neurodegenerative diseases.

  19. Scoring System Development and Validation for Prediction Choledocholithiasis before Open Cholecystectomy.

    Science.gov (United States)

    Pejović, Tomislav; Stojadinović, Miroslav M

    2015-01-01

    Accurate precholecystectomy detection of concurrent asymptomatic common bile duct stones (CBDS) is key in the clinical decision-making process. The standard preoperative methods used to diagnose these patients are often not accurate enough. The aim of the study was to develop a scoring model that would predict CBDS before open cholecystectomy. We retrospectively collected preoperative (demographic, biochemical, ultrasonographic) and intraoperative (intraoperative cholangiography) data for 313 patients at the department of General Surgery at Gornji Milanovac from 2004 to 2007. The patients were divided into a derivation (213) and a validation set (100). Univariate and multivariate regression analysis was used to determine independent predictors of CBDS. These predictors were used to develop scoring model. Various measures for the assessment of risk prediction models were determined, such as predictive ability, accuracy, the area under the receiver operating characteristic curve (AUC), calibration and clinical utility using decision curve analysis. In a univariate analysis, seven risk factors displayed significant correlation with CBDS. Total bilirubin, alkaline phosphatase and bile duct dilation were identified as independent predictors of choledocholithiasis. The resultant total possible score in the derivation set ranged from 7.6 to 27.9. Scoring model shows good discriminatory ability in the derivation and validation set (AUC 94.3 and 89.9%, respectively), excellent accuracy (95.5%), satisfactory calibration in the derivation set, similar Brier scores and clinical utility in decision curve analysis. Developed scoring model might successfully estimate the presence of choledocholithiasis in patients planned for elective open cholecystectomy.

  20. Evaluation of scoring system in cytological diagnosis and management of breast lesion with review of literature

    Directory of Open Access Journals (Sweden)

    N M Nandini

    2011-01-01

    Full Text Available Background: Fine needle aspiration cytology (FNAC breast is generally considered as a rapid, reliable, and safe diagnostic tool to distinguish non-neoplastic from neoplastic breast lesions. Masood′s Scoring Index has been proposed to help in sub-grouping of breast lesions so as to help in surgical management. Aims: To assess the accuracy of Modified Masood′s Scoring Index (MMSI in the diagnosis of benign and malignant breast lesions in patients with palpable breast lump, and review of literature. Settings and Design: A prospective study from a tertiary care center. Material and Methods: This prospective study included a total of 100 cases, both females and males, with palpable breast lump, in the age range of 10-80 years, over a period of 2 years from January 2007 to 2009, who underwent FNAC. They were cytologically grouped into five categories as suggested by Masood et al, and confirmed by histopathology. Results: Evaluation of Masood Scoring Index led to modification (Modified Masood Scoring Index; MMSI by shifting score 9 from Group I to Group II, thus increasing the diagnostic accuracy of the breast lesions. Conclusions: MMSI was found to be a useful, easily reproducible scoring method of breast lesions to improve diagnostic accuracy of nonproliferative breast disease and proliferative breast disease without atypia cases, as the prognosis and treatment of these cases varies.

  1. Radiographic findings in liveborn triploidy

    Energy Technology Data Exchange (ETDEWEB)

    Silverthorn, K.G.; Houston, C.S.; Newman, D.E.; Wood, B.J.

    1989-05-01

    The detailed radiographic features of triploidy, a fatal congenital disorder with 69 chromosomes, have not previously been reported. Radiographs of ten liveborn infants with chromosomally confirmed triploidy showed six findings highly suggestive of this diagnosis: Harlequin orbits, small anterior fontanelle, gracile ribs, diaphyseal overtubulation of long bones, upswept clavicles and antimongoloid pelvis. Sixteen other less specific findings showed many similarities to those found in trisomy 18.

  2. Radiographic findings in liveborn triploidy.

    Science.gov (United States)

    Silverthorn, K G; Houston, C S; Newman, D E; Wood, B J

    1989-01-01

    The detailed radiographic features of triploidy, a fatal congenital disorder with 69 chromosomes, have not previously been reported. Radiographs of ten liveborn infants with chromosomally confirmed triploidy showed six findings highly suggestive of this diagnosis: harlequin orbits, small anterior fontanelle, gracile ribs, diaphyseal overtubulation of long bones, upswept clavicles and antimongoloid pelvis. Sixteen other less specific findings showed many similarities to those found in trisomy 18.

  3. Film holder for radiographing tubing

    Science.gov (United States)

    Davis, Earl V.; Foster, Billy E.

    1976-01-01

    A film cassette is provided which may be easily placed about tubing or piping and readily held in place while radiographic inspection is performed. A pair of precurved light-impervious semi-rigid plastic sheets, hinged at one edge, enclose sheet film together with any metallic foils or screens. Other edges are made light-tight with removable caps, and the entire unit is held securely about the object to be radiographed with a releasable fastener such as a strip of Velcro.

  4. Radiographic study of mandibular asymmetry

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Yeon Hwa; Cho, Bong Hae [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Pusan (Korea, Republic of)

    1998-02-15

    The purpose of this study was to perform the radiographic measurements and temporomandibular joint evaluation in mandibular asymmetry. For this study, thirty-two patients who have mandibular asymmetry were selected and submentovertex, panoramic and lateral corrected tomographic radiographs were taken. Horizontal and vertical analysis using various landmarks on these radiographs were performed. Also radiographic and clinical evaluation of temporomandibular joint were obtained. The results were as follows: 1. On the submentovertex radiograph, the mean distance of Pogonion to midline was 5.0 {+-} 3.8 mm. 2. The mean distance of Pogonion to Gonion between the deviated and the contra-lateral side (p<0.001). 3. The distance difference of Pogonion to Gonion between the deviated and the contra-lateral side was significantly related to the degree of asymmetry (p<0.001). 4. On panoramic radiograph,the condylar height of the contral-lateral side was significantly longer than the one of the deviated side (p<0.001). 5. On lateral corrected tomogram, bony of temporomandibular joint was observed in 11 condyles of the deviated side and 9 condyles of the contra-lateral side. Erosion and ostephyte were the most common changes in both the deviated and the contra-lateral sides.

  5. Video enhancement of dental radiographic films

    Energy Technology Data Exchange (ETDEWEB)

    Van Dis, M.L.; Beck, F.M.; Miles, D.A. (Ohio State Univ., Columbus (USA))

    1989-08-01

    A prototype video image display system, a real-time analog enhancer (RAE), was compared to conventional viewing conditions with the use of nonscreen dental films. When medium optical density films were evaluated, there was no significant difference in the number of radiographic details detected. Conventional viewing conditions allowed perception of more details when dark films were evaluated; however, the RAE unit allowed the perception of more details when light films were viewed.

  6. Risk stratification in cardiovascular disease primary prevention - scoring systems, novel markers, and imaging techniques.

    LENUS (Irish Health Repository)

    Zannad, Faiez

    2012-04-01

    The aim of this paper is to review and discuss current methods of risk stratification for cardiovascular disease (CVD) prevention, emerging biomarkers, and imaging techniques, and their relative merits and limitations. This report is based on discussions that took place among experts in the area during a special CardioVascular Clinical Trialists workshop organized by the European Society of Cardiology Working Group on Cardiovascular Pharmacology and Drug Therapy in September 2009. Classical risk factors such as blood pressure and low-density lipoprotein cholesterol levels remain the cornerstone of risk estimation in primary prevention but their use as a guide to management is limited by several factors: (i) thresholds for drug treatment vary with the available evidence for cost-effectiveness and benefit-to-risk ratios; (ii) assessment may be imprecise; (iii) residual risk may remain, even with effective control of dyslipidemia and hypertension. Novel measures include C-reactive protein, lipoprotein-associated phospholipase A(2) , genetic markers, and markers of subclinical organ damage, for which there are varying levels of evidence. High-resolution ultrasound and magnetic resonance imaging to assess carotid atherosclerotic lesions have potential but require further validation, standardization, and proof of clinical usefulness in the general population. In conclusion, classical risk scoring systems are available and inexpensive but have a number of limitations. Novel risk markers and imaging techniques may have a place in drug development and clinical trial design. However, their additional value above and beyond classical risk factors has yet to be determined for risk-guided therapy in CVD prevention.

  7. Getting satisfaction: drivers of surgical Hospital Consumer Assessment of Health care Providers and Systems survey scores.

    Science.gov (United States)

    Iannuzzi, James C; Kahn, Steven A; Zhang, Linlin; Gestring, Mark L; Noyes, Katia; Monson, John R T

    2015-07-01

    Hospital consumer assessment of health care providers and systems (HCAHPS) survey scores formally recognize that patients are central to health care, shifting quality metrics from the physician to patient perspective. This study describes clinical predictors of patient satisfaction in surgical patients. Analysis of a single institution's Surgical Department HCAHPS responses was performed from March 2011-October 2012. The end points were top box satisfaction on two global domains. Multivariable regression was used to determine satisfaction predictors including HCAHPS domains, demographics, and clinical variables such as comorbidities, intensive care unit stay, emergency case, discharge day, floor transfers, complications, and ancillary procedures. In total, 978 surveys were evaluated representing admissions to Acute care and/or Trauma (n = 177, 18.1%), Thoracic (n = 169, 17.3%), Colorectal (n = 107, 10.9%), Transplant (n = 95, 9.7%), Vascular (n = 92, 9.4%), Oncology (n = 88, 9.0%), Plastic (n = 49, 5.0%), and Cardiac (n = 201, 20.6%) divisions. Overall, 658 patients (67.3%) had high satisfaction and 733 (74.9%) gave definite hospital recommendations. Hospital satisfaction was positively associated with an intensive care unit admission (odds ratio [OR] = 1.64, confidence interval [CI]: 1.20-2.23, P = 0.002) and satisfaction with provider and pain domains. Factors associated with decreased satisfaction were race (non-black minority compared with whites; OR = 0.41, CI: 0.21-0.83, P = 0.012), self-reported poor health (OR = 0.43, CI: 0.27-0.68, P nurse-patient interactions. These results help inform future quality improvement and resource allocation. Copyright © 2015 Elsevier Inc. All rights reserved.

  8. An acoustic feature-based similarity scoring system for speech rehabilitation assistance.

    Science.gov (United States)

    Syauqy, Dahnial; Wu, Chao-Min; Setyawati, Onny

    2016-08-01

    The purpose of this study is to develop a tool to assist speech therapy and rehabilitation, which focused on automatic scoring based on the comparison of the patient's speech with another normal speech on several aspects including pitch, vowel, voiced-unvoiced segments, strident fricative and sound intensity. The pitch estimation employed the use of cepstrum-based algorithm for its robustness; the vowel classification used multilayer perceptron (MLP) to classify vowel from pitch and formants; and the strident fricative detection was based on the major peak spectral intensity, location and the pitch existence in the segment. In order to evaluate the performance of the system, this study analyzed eight patient's speech recordings (four males, four females; 4-58-years-old), which had been recorded in previous study in cooperation with Taipei Veterans General Hospital and Taoyuan General Hospital. The experiment result on pitch algorithm showed that the cepstrum method had 5.3% of gross pitch error from a total of 2086 frames. On the vowel classification algorithm, MLP method provided 93% accuracy (men), 87% (women) and 84% (children). In total, the overall results showed that 156 tool's grading results (81%) were consistent compared to 192 audio and visual observations done by four experienced respondents. Implication for Rehabilitation Difficulties in communication may limit the ability of a person to transfer and exchange information. The fact that speech is one of the primary means of communication has encouraged the needs of speech diagnosis and rehabilitation. The advances of technology in computer-assisted speech therapy (CAST) improve the quality, time efficiency of the diagnosis and treatment of the disorders. The present study attempted to develop tool to assist speech therapy and rehabilitation, which provided simple interface to let the assessment be done even by the patient himself without the need of particular knowledge of speech processing while at the

  9. Radiographic evaluation of acute distal radius fracture stability: A comparative cadaveric study between a thermo-formable bracing system and traditional fiberglass casting.

    Science.gov (United States)

    Santoni, Brandon G; Aira, Jazmine R; Diaz, Miguel A; Kyle Stoops, T; Simon, Peter

    2017-08-01

    Distal radius fractures are common musculoskeletal injuries and many can be treated non-operatively with cast immobilization. A thermo-formable brace has been developed for management of such fractures, but no data exist regarding its comparative stabilizing efficacy to fiberglass casting. A worst-case distal radius fracture was created in 6 cadaveric forearms. A radiolucent loading fixture was created to apply cantilever bending/compression loads ranging from 4.5N to 66.7N across the simulated fracture in the: (1) non-stabilized, (2) braced; and (3) casted forearms, each forearm serving as its own control. Fracture fragment translations and rotations were measured radiographically using orthogonal radiographs and a 2D-3D, CT-based transformation methodology. Under 4.5N of load in the non-stabilized condition, average sagittal plane rotation and 3D center of mass translation of the fracture fragment were 12.3° and 5.3mm, respectively. At the 4.5N load step, fragment rotation with the brace (avg. 0.0°) and cast (0.1°) reduced sagittal plane rotation compared to the non-stabilized forearm (Pdifferences in measured sagittal plane fracture fragment rotations or 3D fragment translations between the brace or cast at any of the four load steps (4.5N, 22.2N, 44.5N, and 66.7N, P≥0.138). In this in vitro radiographic study utilizing 6 cadaveric forearms with simulated severe-case, unstable and comminuted distal radius fractures, the thermo-formable brace stabilized the fracture in a manner that was not radiographically or biomechanically different from traditional fiberglass casting. Study results support the use of the thermo-formable brace clinically. Copyright © 2017 Elsevier Ltd. All rights reserved.

  10. Radiographic predictors of residual low back pain after laminectomy for lumbar canal stenosis: a minimum of 6-year follow-up

    Institute of Scientific and Technical Information of China (English)

    XIA Ying-peng; XU Tian-tong; SHEN Qing-feng; ZHANG Xue-li; JIANG Han; TIAN Rong

    2008-01-01

    Objective:\tTo identify radiographic predictors of residual low back pain (LBP) after laminectomy for lumbar canal stenosis (LCS).Methods:\tClinical results and radiographic findings in 69 patients who underwent single level laminectomy for LCS were retrospectively reviewed. Patients who had an improvement in LBP scores evaluated by Japanese Orthopaedic Association (JOA) scoring system during the follow-up periods were classified as the recovery group, and others were classified as the non-recovery group. Patients's clinical data and radiographic parameters like lordosis angle, range of motion and intervertebral rotational angle were analyzed using binary logistic regression analysis to detect factors significantly related with the occurrence of residual LBP. Results: The average preoperative JOA score of 14.8±5.05 improved to 21.59±5.51 at the final follow-up. Binary logistic regression analysis revealed that significant predictors of residual LBP were preoperative lumbar lordosis angle and range of motion. Conclusions: Our results suggest that patients with flat back and limited lumbar mobility before surgery tend to have poor results in terms of LBP. Therefore, these sagittal radiographic parameters should be taken into account when choosing laminectomy as the surgical option for LCS.

  11. Prospective comparison of three risk scoring systems in non-variceal and variceal upper gastrointestinal bleeding.

    Science.gov (United States)

    Thanapirom, Kessarin; Ridtitid, Wiriyaporn; Rerknimitr, Rungsun; Thungsuk, Rattikorn; Noophun, Phadet; Wongjitrat, Chatchawan; Luangjaru, Somchai; Vedkijkul, Padet; Lertkupinit, Comson; Poonsab, Swangphong; Ratanachu-ek, Thawee; Hansomburana, Piyathida; Pornthisarn, Bubpha; Thongbai, Thirada; Mahachai, Varocha; Treeprasertsuk, Sombat

    2016-04-01

    Data regarding the efficacy of the Glasgow Blatchford score (GBS), full Rockall score (FRS) and pre-endoscopic Rockall scores (PRS) in comparing non-variceal and variceal upper gastrointestinal bleeding (UGIB) are limited. Our aim was to determine the performance of these three risk scores in predicting the need for treatment, mortality, and re-bleeding among patients with non-variceal and variceal UGIB. During January, 2010 and September, 2011, patients with UGIB from 11 hospitals were prospectively enrolled. The GBS, FRS, and PRS were calculated. Discriminative ability for each score was assessed using the receiver operated characteristics curve (ROC) analysis. A total of 981 patients presented with acute UGIB, 225 patients (22.9%) had variceal UGIB. The areas under the ROC (AUC) of the GBS, FRS, and PRS for predicting the need for treatment were 0.77, 0.69, and 0.61 in non-variceal versus 0.66, 0.66, and 0.59 in variceal UGIB. The AUC for predicting mortality and re-bleeding during admission were 0.66, 0.80, and 0.76 in non-variceal versus 0.63, 0.57, and 0.63 in variceal UGIB. AUC score was not statistically significant for predicting need for therapy and clinical outcome in variceal UGIB. The GBS ≤ 2 and FRS ≤ 1 identified low-risk non-variceal UGIB patients for death and re-bleeding during hospitalization. In contrast to non-variceal UGIB, the GBS, FRS, and PRS were not precise scores for assessing the need for therapy, mortality, and re-bleeding during admission in variceal UGIB. © 2015 Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd.

  12. SF-36 summary and subscale scores are reliable outcomes of neuropsychiatric events in systemic lupus erythematosus

    Science.gov (United States)

    Hanly, J. G.; Urowitz, M. B.; Jackson, D.; Bae, S.C.; Gordon, C.; Wallace, D.J.; Clarke, A.; Bernatsky, S.; Vasudevan, A.; Isenberg, D.; Rahman, A.; Sanchez-Guerrero, J.; Romero-Diaz, J.; Merrill, J. T.; Fortin, P.R.; Gladman, D.D.; Bruce, I. N.; Steinsson, K.; Khamashta, M.; Alarcón, G.S.; Fessler, B.; Petri, M.; Manzi, S.; Nived, O.; Sturfelt, G.; Ramsey-Goldman, R.; Dooley, M.A.; Aranow, C.; Van Vollenhoven, R.; Ramos-Casals, M.; Zoma, A.; Kalunian, K.; Farewell, V.

    2013-01-01

    Objective To examine change in health-related quality of life (HRQoL) in association with clinical outcomes of neuropsychiatric (NP) events in SLE. Methods An international study evaluated newly diagnosed SLE patients for NP events attributed to SLE and non-SLE causes. Outcome of events was determined by physician-completed 7-point scale and compared to patient-completed SF-36 questionnaires. Statistical analysis used linear mixed-effects regression models with patient specific random effects. Results 274 patients (92% female; 68% Caucasian), from a cohort of 1400, had ≥ 1 NP event where the interval between assessments was 12.3 ± 2 months. The overall difference in change between visits in mental component summary (MCS) scores of the SF-36 was significant (p<0.0001) following adjustments for gender, ethnicity, center and previous score. A consistent improvement in NP status (N=295) was associated with an increase in the mean(SD) adjusted MCS score of 3.66(0.89) in SF-36 scores. Between paired visits where NP status consistently deteriorated (N=30), the adjusted MCS score decreased by 4.00(1.96). For the physical component summary (PCS) scores the corresponding changes were +1.73(0.71) and −0.62(1.58) (p<0.05) respectively. Changes in SF-36 subscales were in the same direction (p<0.05; with the exception of role physical). Sensitivity analyses confirmed these findings. Adjustment for age, education, medications, SLE disease activity, organ damage, disease duration, attribution and characteristics of NP events did not substantially alter the results. Conclusion Changes in SF-36 summary and subscale scores, in particular those related to mental health, are strongly associated with the clinical outcome of NP events in SLE patients. PMID:21342917

  13. Comparison between two scoring systems of the Rey-Osterrieth Complex Figure in left and right temporal lobe epileptic patients.

    Science.gov (United States)

    Frank, Jean; Landeira-Fernandez, J

    2008-01-01

    The Rey-Osterrieth Complex Figure (ROCF) is probably one of the most popular measurement instruments of visuoconstructional abilities and nonverbal memory. It is frequently part of neuropsychological test protocols in epilepsy surgery centers. In this study we compared the traditional scoring system of the ROCF developed by Taylor (1998) with a qualitative system that assesses spatial-relational errors devised by Loring et al. [Loring, D. W., Lee, G. P., & Meador, K. J. (1988). Revising the Rey-Osterrieth: Rating right hemisphere recall. Archives of Clinical Neuropsychology, 3, 239-247] in a sample of left and right temporal lobe epilepsy patients undergoing pre-surgical evaluation. We investigated whether the relational-spatial scoring system would be more sensitive to right-sided memory deficits than the traditional Taylor version. There was no difference in the copy phase of the ROCF between the clinical and control groups. There was a significant difference between the control and the clinical groups when the 30-min delayed recall drawings were scored with the Taylor system. However, this system failed to find differences between left and right temporal lobe epileptic patients. On the other hand, comparisons with the qualitative scoring criteria used by Loring et al. [Loring, D. W., Lee, G. P., & Meador, K. J. (1988). Revising the Rey-Osterrieth: Rating right hemisphere recall. Archives of Clinical Neuropsychology, 3, 239-247] revealed that right temporal lobe patients made more spatial-relational errors than patients with left-sided foci. Frequency distribution of these scores for all the three groups and sensitivity and specificity to correctly classify right temporal lobe patients are presented. This investigation demonstrated that applying qualitative, material-specific scoring criteria improves temporal lobe epilepsy presurgical protocols.

  14. Prediction of mortality rate of trauma patients in emergency room at Cipto Mangunkusumo Hospital by several scoring systems

    Directory of Open Access Journals (Sweden)

    Pande M.W. Tirtayasa

    2013-12-01

    Full Text Available Background: Trauma management is well recognized as one of the main challenges in modern health care. Easy-to-use trauma scoring systems inform physicians of the severity of trauma and help them to decide the course of trauma management. The aim of this study was to find the most applicable trauma scoring system which can be used by physicians by comparing prediction of the mortality rate using: 1triage-revised trauma score (T-RTS; 2 mechanism, Glasgow coma scale (GCS, age, and arterial pressure (MGAP; and GCS, age, and systolic blood pressure (GAP scoring system on trauma patients in emergency room (ER at Cipto Mangunkusumo Hospital.Methods: The data were collected retrospectively from medical records of trauma patients who came to the resuscitation area in ER at Cipto Mangunkusumo Hospital throughout 2011. As many as 185 patients were managed. The inclusion criteria were all trauma patients who came to the resuscitation area in ER. All referred patients, patients under eighteen, and uncompleted data were excluded. The data were calculated based on each scoring system. The outcome (death or alive was collected on first 24 hours following admission.Results: There were 124 cases analyzed, with mean of age of 32.4 years and total mortality rate up to 23 cases (18.5%. The mortality rate of low risk group on T-RTS, MGAP, and GAP was 5%, 1.3%, and 1.4% respectively (p = 1.000. The mortality rate of intermediate risk group on T-RTS, MGAP, and GAP was 39.4%, 32.1%, and 36.3%, respectively (p = 0.841. Mortality rate of high risk group on T-RTS, MGAP, and GAP was 100%, 72.2%, and 85.7% respectively (p = 0.782.Conclusion: There was no difference on T-RTS, MGAP, and GAP scoring system in predicting mortality rate. T-RTS is the most applicable trauma scoring system since it does not differ the age and mechanism of trauma. (Med J Indones. 2013;22:227-31. doi: 10.13181/mji.v22i4.603 Keywords: GAP, MGAP, T-RTS, Trauma scoring system

  15. Interobserver and intraobserver reliability of the japanese orthopaedic association scoring system for evaluation of cervical compression myelopathy.

    Science.gov (United States)

    Yonenobu, K; Abumi, K; Nagata, K; Taketomi, E; Ueyama, K

    2001-09-01

    The inter- and intraobserver reliabilities of an assessment scale for cervical compression myelopathy were examined statistically. This scoring system consists of seven categories: motor function of fingers, shoulder and elbow, and lower extremity; sensory function of upper extremity, trunk and lower extremity; and function of the bladder. It evaluates the severity of myelopathy by allocating points based on degree of dysfunction in each category. To determine the inter- and intraobserver reliabilities of the revised scoring system (17 - 2 points) for cervical compression myelopathy proposed by the Japanese Orthopedic Association. Several scales to assess clinical outcome from treatment of cervical compression myelopathy have been proposed. Most of these scales include items evaluated by observers. However, no system, including the Japanese Orthopedic Association scoring system, has yet been validated in terms of interobserver reliability. From five different university hospitals, 10 spine surgery specialists, 10 orthopedic surgeons who had just passed the board examination of the Japanese Orthopedic Association, and 13 residents in the first or second year of orthopedic residency programs were chosen. The participants in this study were 29 patients with myelopathy secondary to ossification of the posterior longitudinal ligament selected from five participating university hospitals. Several surgeons interviewed each patient twice at intervals of 1 to 6 weeks. Inter- and intraobserver reliabilities of the total score for all categories were evaluated by the intraclass correlation coefficient. The extension of the kappa coefficient of Kraemer also was calculated for each category to assess reliability of multivariate categorical data. The interobserver reliability of the total score for the first interview (intraclass correlation coefficient = 0.813) and the intra- and interobserver reliabilities of the total score (intraclass correlation coefficient = 0.826) were

  16. Test-retest reliability of the Advanced Psychodiagnostic Interpretation (API) scoring system for the Bender Gestalt in chronic schizophrenics.

    Science.gov (United States)

    Aucone, E J; Wagner, E E; Raphael, A J; Golden, C J; Espe-Pfeifer, P; Dornheim, L; Seldon, J; Pospisil, T; Proctor-Weber, Z; Calabria, M

    2001-09-01

    This study assesses the test-retest reliability of the revised Advanced Psychodiagnostic Interpretation (API) scoring system for the Bender Gestalt Test (BGT). The API system identifies 207 possible distortions in a BGT protocol. Test-retest reliability for 40 schizophrenic patients tested twice with a mean interval of 6.4 years (SD=3.8 years) was good, ranging from .71 to .80. Further reliability and validity studies are needed to further demonstrate the effectiveness of the system.

  17. Prognostic scoring system for locoregional control among the patients with nasopharyngeal carcinoma treated by intensity-modulated radiotherapy

    Institute of Scientific and Technical Information of China (English)

    Chang-Juan Tao; Ai-Hua Lin; Jun Ma; Ying Sun; Xu Liu; Ling-Long Tang; Yan-Ping Mao; Lei Chen; Wen-Fei Li; Xiao-Li Yu; Li-Zhi Liu; Rong Zhang

    2013-01-01

    The prognostic value of T category for locoregional control in patients with nasopharyngeal carcinoma (NPC) has decreased with the extensive use of intensity-modulated radiotherapy (IMRT). We aimed to develop a prognostic scoring system (PSS) that incorporated tumor extension and clinical characteristics for locoregional control in NPC patients treated with IMRT. The magnetic resonance imaging scans and medical records of 717 patients with nonmetastatic NPC treated with IMRT at Sun Yat-sen University Cancer Center between January 2003 and January 2008 were reviewed. Age, pathologic classification, primary tumor extension, primary gross tumor volume (GTV-p), T and N categories, and baseline lactate dehydrogenase (LDH) level were analyzed. Hierarchical cluster analysis as well as univariate and multivariate analyses were used to develop the PSS. Independent prognostic factors for locoregional relapse included N2-3 stage, GTV-p≥26.8 mL, and involvement of one or more structures within cluster 3. We calculated a risk score derived from the regression coefficient of each factor and classified patients into four groups:low risk (score 0), intermediate risk (score>0 and≤1), high risk (score>1 and≤2), and extremely high risk (score>2). The 5-year locoregional control rates for these groups were 97.4%, 93.6%, 85.2%, and 78.6%, respectively (P<0.001). We have developed a PSS that can help identify NPC patients who are at high risk for locoregional relapse and can guide individualized treatments for NPC patients.

  18. Utility of Boston Qualitative Scoring System for Rey-Osterrieth Complex Figure: evidence from a Parkinson's Diseases sample.

    Science.gov (United States)

    Scarpina, Federica; Ambiel, Erika; Albani, Giovanni; Pradotto, Luca Guglielmo; Mauro, Alessandro

    2016-10-01

    This study examined the ability of the Boston Qualitative Scoring System (BQSS) in comparison to the Osterrieth scoring method to separate Parkinson's Disease patients without dementia from healthy controls at the Rey-Osterrieth Complex Figure (ROCF) copy. 30 PD participants and 30 healthy participants completed ROCF copy. The performance was scored according to both methods. The results indicated that PD patients performed significantly worse on ROCF. According to ROC analyses, BQSS Copy Total score represented the most suitable index to distinguish between the two groups: a score below or equal to 16 indicates an impaired performance. Moreover, PD participants reported lower performance in the BQSS scores of Planning and Neatness. PD patients' poor performance in ROCF copy was related to executive difficulties, specifically in terms of planning and impulsivity, instead of global visuo-constructional impairments. An extensive evaluation of copy drawings allowing to disentangle between different involved cognitive domains would be suitable, specifically in those clinical conditions like PD, in which motor impairments affect drawing performance.

  19. Validity and sensitivity to change of the semi-quantitative OMERACT ultrasound scoring system for tenosynovitis in patients with rheumatoid arthritis

    DEFF Research Database (Denmark)

    Ammitzbøll-Danielsen, Mads; Østergaard, Mikkel; Naredo, Esperanza;

    2016-01-01

    OBJECTIVES: The aim was to evaluate the metric properties of the semi-quantitative OMERACT US scoring system vs a novel quantitative US scoring system for tenosynovitis, by testing its intra- and inter-reader reliability, sensitivity to change and comparison with clinical tenosynovitis scoring in...

  20. Greater body mass independently predicts less radiographic progression on X-ray and MRI over 1-2 years

    DEFF Research Database (Denmark)

    Baker, Joshua F; Østergaard, Mikkel; George, Michael

    2014-01-01

    of radiographic progression for each BMI category (30 kg/m(2)). Within GO-BEFORE, piecewise, robust generalised estimating equations marginal models assessed the probability of MRI erosion progression for each BMI category. Multivariable linear regression models assessed baseline associations between......INTRODUCTION: Greater body mass index (BMI) has been associated with less radiographic progression in rheumatoid arthritis (RA). We evaluated the association between BMI and joint damage progression as measured by X-ray and MRI. METHODS: 1068 subjects with RA from two clinical trials of golimumab...... (GO-BEFORE and GO-FORWARD) had radiographs performed at weeks 0, 52 and 104 and evaluated using the van der Heijde-Sharp (vdHS) scoring system. Contrast-enhanced MRIs of the dominant wrist and hand were obtained at weeks 0, 12, 24, 52 and 104. Multivariable logistic regression evaluated the risk...

  1. Applicability of different scoring systems in outcome prediction of patients with mixed drug poisoning-induced coma

    Directory of Open Access Journals (Sweden)

    Nastaran Eizadi Mood

    2011-01-01

    Full Text Available Background: Mixed drugs poisoning (MDP is common in the emergency departments. Because of the limited number of intensive care unit beds, recognition of risk factors to divide the patients into different survival groups is necessary. Poisoning due to ingestion of different medications may have additive or antagonistic effects on different parameters included in the scoring systems; therefore, the aim of the study was to compare applicability of the different scoring systems in outcomes prediction of patients admitted with MDP-induced coma. Methods: This prospective, observational study included 93 patients with MDP-induced coma. Clinical and laboratory data conforming to the Acute Physiology and Chronic Health Evaluation (APACHE II, Modified APACHE II Score (MAS, Mainz Emergency Evaluation Scores (MEES and Glasgow Coma Scale (GCS were recorded for all patients on admission (time 0 and 24 h later (time 24 . The outcome was recorded in two categories: Survived with or without complication and non-survived. Discrimination was evaluated using receiver operating characteristic (ROC curves and area under the ROC curve (AUC. Results: The mortality rate was 9.7%. Mean of each scoring system was statistically significant between time 0 and time 24 in the survivors. However, it was not significant in non-survivors. Discrimination was excellent for GCS 24 (0.90±0.05, APACHE II 24 (0.89±0.01, MAS 24 (0.86±0.10, and APACHE II 0 (0.83±0.11 AUC. Conclusion: The GCS 24 , APACHE II 24 , MAS 24 , and APACHE II 0 scoring systems seem to predict the outcome in comatose patients due to MDP more accurately. GCS and MAS may have superiority over the others in being easy to perform and not requiring laboratory data.

  2. Conventional versus virtual radiographs of the injured pelvis and acetabulum

    Energy Technology Data Exchange (ETDEWEB)

    Bishop, Julius A.; Rao, Allison J.; Pouliot, Michael A.; Bellino, Michael [Stanford University School of Medicine, Department of Orthopaedic Surgery, Stanford, CA (United States); Beaulieu, Christopher [Stanford University School of Medicine, Department of Radiology, Stanford, CA (United States)

    2015-09-15

    Evaluation of the fractured pelvis or acetabulum requires both standard radiographic evaluation as well as computed tomography (CT) imaging. The standard anterior-posterior (AP), Judet, and inlet and outlet views can now be simulated using data acquired during CT, decreasing patient discomfort, radiation exposure, and cost to the healthcare system. The purpose of this study is to compare the image quality of conventional radiographic views of the traumatized pelvis to virtual radiographs created from pelvic CT scans. Five patients with acetabular fractures and ten patients with pelvic ring injuries were identified using the orthopedic trauma database at our institution. These fractures were evaluated with both conventional radiographs as well as virtual radiographs generated from a CT scan. A web-based survey was created to query overall image quality and visibility of relevant anatomic structures. This survey was then administered to members of the Orthopaedic Trauma Association (OTA). Ninety-seven surgeons completed the acetabular fracture survey and 87 completed the pelvic fracture survey. Overall image quality was judged to be statistically superior for the virtual as compared to conventional images for acetabular fractures (3.15 vs. 2.98, p = 0.02), as well as pelvic ring injuries (2.21 vs. 1.45, p = 0.0001). Visibility ratings for each anatomic landmark were statistically superior with virtual images as well. Virtual radiographs of pelvic and acetabular fractures offer superior image quality, improved comfort, decreased radiation exposure, and a more cost-effective alternative to conventional radiographs. (orig.)

  3. The Novel Scoring System for 30-Day Mortality in Patients with Non-variceal Upper Gastrointestinal Bleeding.

    Science.gov (United States)

    Hwang, Sejin; Jeon, Seong Woo; Kwon, Joong Goo; Lee, Dong Wook; Ha, Chang Yoon; Cho, Kwang Bum; Jang, ByungIk; Park, Jung Bae; Park, Youn Sun

    2016-07-01

    Although the mortality rates for non-variceal upper gastrointestinal bleeding (NVUGIB) have recently decreased, it remains a significant medical problem. The main aim of this prospective multicenter database study was to construct a clinically useful predictive scoring system by using our predictors and compare its prognostic accuracy with that of the Rockall scoring system. Data were collected from consecutive patients with NVUGIB. Logistic regression analysis was performed to identify the independent predictors of 30-day mortality. Each independent predictor was assigned an integral point proportional to the odds ratio (OR) and we used the area under the curve to compare the discrimination ability between the new predictive model and the Rockall score. The independent predictors of mortality included age >65 years [OR 2.627; 95 % confidence interval (CI) 1.298-5.318], hemodynamic instability (OR 2.217; 95 % CI 1.069-4.597), serum blood urea nitrogen level >40 mg/dL (OR 1.895; 95 % CI 1.029-3.490), active bleeding at endoscopy (OR 2.434; 95 % CI 1.283-4.616), transfusions (OR 3.811; 95 % CI 1.640-8.857), comorbidities (OR 3.481; 95 % CI 1.405-8.624), and rebleeding (OR 10.581; 95 % CI 5.590-20.030). The new predictive model showed a high discrimination capability and was significantly superior to the Rockall score in predicting the risk of death (OR 0.837;95 % CI 0.818-0.855 vs. 0.761; 0.739-0.782; P = 0.0123). The new predictive score was significantly more accurate than the Rockall score in predicting death in NVUGIB patients. We need to prospectively validate the accuracy of this score for predicting mortality in NVUGIB patients.

  4. INTERNATIONAL SOCIETY ON THROMBOSIS AND HAEMOSTASIS DISSEMINATED INTRAVASCULAR COAGULATION SCORING SYSTEM: IS IT A GOOD PROGNOSTIC INDICATOR IN DIC

    Directory of Open Access Journals (Sweden)

    Nisal Amit, Nimbargi Ravindra, Shelke Parineeta, Kelkar Anjali

    2015-07-01

    Full Text Available Background: Disseminated intravascular coagulation is an acquired disorder characterized by intravascular activation of coagulation due to variety of causes. There is excessive thrombin formation leading to fibrin deposition in microcirculation and consequent ischemic organ damage. The diagnosis is essentially clinical supported by laboratory parameters and a scoring system based on these. The mainstay of treatment is correction of underlying cause and haemostatic support with replacement of coagulation factors. Aim: To evaluate the use of ISTH DIC scoring system in patients of clinically suspected Disseminated Intravascular Coagulation. Methods: 60 cases were studied over a period of one year. Patients were selected with a clinical suspicion of DIC who are having an underlying predisposing condition. Clinical signs and symptoms were recorded. Routine investigations and the tests necessary to calculate the ISTH score i.e. platelet count, Prothrombin time; D-dimer and Fibrinogen were done. The scoring criteria of ISTH were applied in these cases. Chi square and Fisher’s exact tests were used for analysis of the data. Results: The commonest cause of the underlying disorder in our study was found to be Sepsis (66.7% followed by trauma (10%, obstetric causes (8.3% and solid malignancy (6.7%. There was a significant association of ISTH score with outcome of the patients (P value <0.05. Raised APTT and presence of schistocytes also had a significant association with a high ISTH score. Conclusion: ISTH DIC scoring criteria more precisely define clinical and laboratory parameters of DIC. Its clinical utility will improve the timely diagnosis, prediction of severity and will also aid in improving prognosis of DIC patients.

  5. Scoring system development and validation for prediction choledocholithiasis before open cholecystectomy

    Directory of Open Access Journals (Sweden)

    Pejović Tomislav

    2015-01-01

    Full Text Available Introduction. Accurate precholecystectomy detection of concurrent asymptomatic common bile duct stones (CBDS is key in the clinical decision-making process. The standard preoperative methods used to diagnose these patients are often not accurate enough. Objective. The aim of the study was to develop a scoring model that would predict CBDS before open cholecystectomy. Methods. We retrospectively collected preoperative (demographic, biochemical, ultrasonographic and intraoperative (intraoperative cholangiography data for 313 patients at the department of General Surgery at Gornji Milanovac from 2004 to 2007. The patients were divided into a derivation (213 and a validation set (100. Univariate and multivariate regression analysis was used to determine independent predictors of CBDS. These predictors were used to develop scoring model. Various measures for the assessment of risk prediction models were determined, such as predictive ability, accuracy, the area under the receiver operating characteristic curve (AUC, calibration and clinical utility using decision curve analysis. Results. In a univariate analysis, seven risk factors displayed significant correlation with CBDS. Total bilirubin, alkaline phosphatase and bile duct dilation were identified as independent predictors of choledocholithiasis. The resultant total possible score in the derivation set ranged from 7.6 to 27.9. Scoring model shows good discriminatory ability in the derivation and validation set (AUC 94.3 and 89.9%, respectively, excellent accuracy (95.5%, satisfactory calibration in the derivation set, similar Brier scores and clinical utility in decision curve analysis. Conclusion. Developed scoring model might successfully estimate the presence of choledocholithiasis in patients planned for elective open cholecystectomy. [Projekat Ministarstva nauke Republike Srbije, br. 175014

  6. Apgar score

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003402.htm Apgar score To use the sharing features on this page, ... birth. Virginia Apgar, MD (1909-1974) introduced the Apgar score in 1952. How the Test is Performed The ...

  7. Comparison of severity of illness scoring systems for patients with nosocomial bloodstream infection due to Pseudomonas aeruginosa

    Directory of Open Access Journals (Sweden)

    Wenzel Richard P

    2006-08-01

    Full Text Available Abstract Background Several acute illness severity scores have been proposed for evaluating patients on admission to intensive care units but these have not been compared for patients with nosocomial bloodstream infection (nBSI. We compared three severity of illness scoring systems for predicting mortality in patients with nBSI due to Pseudomonas aeruginosa. Methods We performed a historical cohort study on 63 adults in intensive care units with P. aeruginosa monomicrobial nBSI. Results The Acute Physiology, Age, Chronic Health Evaluation II (APACHE II, Sequential Organ Failure Assessment (SOFA, and Simplified Acute Physiologic Score (SAPS II, were calculated daily from 2 days prior through 2 days after the first positive blood culture. Calculation of the area under the receiver operating characteristic (ROC curve confirmed that APACHE II and SAPS II at day -1 and SOFA at day +1 were better predictors of outcome than days -2, 0 and day 2 of BSI. By stepwise logistic regression analysis of these three scoring systems, SAPS II (OR: 13.03, CI95% 2.51–70.49 and APACHE II (OR: 12.51, CI95% 3.12–50.09 on day -1 were the best predictors for mortality. Conclusion SAPS II and APACHE II are more accurate than the SOFA score for predicting mortality in this group of patients at day -1 of BSI.

  8. Effect of a Publicly Accessible Disclosure System on Food Safety Inspection Scores in Retail and Food Service Establishments.

    Science.gov (United States)

    Choi, Jihee; Scharff, Robert L

    2017-07-01

    The increased frequency with which people are dining out coupled with an increase in the publicity of foodborne disease outbreaks has led the public to an increased awareness of food safety issues associated with food service establishments. To accommodate consumer needs, local health departments have increasingly publicized food establishments' health inspection scores. The objective of this study was to estimate the effect of the color-coded inspection score disclosure system in place since 2006 in Columbus, OH, by controlling for several confounding factors. This study incorporated cross-sectional time series data from food safety inspections performed from the Columbus Public Health Department. An ordinary least squares regression was used to assess the effect of the new inspection regime. The introduction of the new color-coded food safety inspection disclosure system increased inspection scores for all types of establishments and for most types of inspections, although significant differences were found in the degree of improvement. Overall, scores increased significantly by 1.14 points (of 100 possible). An exception to the positive results was found for inspections in response to foodborne disease complaints. Scores for these inspections declined significantly by 10.2 points. These results should be useful for both food safety researchers and public health decision makers.

  9. Factors affecting morbidity and mortality in traumatic colorectal injuries and reliability and validity of trauma scoring systems.

    Science.gov (United States)

    Ay, Nurettin; Alp, Vahhaç; Aliosmanoğlu, İbrahim; Sevük, Utkan; Kaya, Şafak; Dinç, Bülent

    2015-01-01

    This study aims to determine the factors that affect morbidity and mortality in colon and rectum injuries related with trauma, the use of trauma scoring systems in predicting mortality and morbidity. Besides patient demographic characteristics, the mechanism of injury, the time between injury and surgery, accompanying body injuries, admittance Glasgow coma scale (GCS), findings at surgery and treatment methods were also recorded. With the obtained data, the abbreviated injury scale (AIS), injury severity score (ISS), revised trauma score (RTS) and trauma-ISS (TRISS) scores of each patient were calculated by using the 2008 revised AIS. Of the patients, 172 (88.7 %) were male, 22 (11.3 %) were female and the mean age was 29.15 ± 12.392 (15-89) years. The morbidity of our patients were 32 % and mortality were 12.4 %. ISS (p TSI, p TSI (OR 5.3; CI 95 % 1.5-18.8; p = 0.01) on morbidity were found to be significant. Predicting mortality by using scoring systems and close postoperative follow up of patients in the risk group may ensure decreases in the rates of morbidity and mortality.

  10. RADIOGRAPHIC EXAMINATION OF TEMPOROMANDIBULAR DISORDERS IN CHILDREN

    Directory of Open Access Journals (Sweden)

    Heru Suryonegoro

    2015-06-01

    Full Text Available The temporomandibular joint has a very important role in the stomatognathic system. Its main function is for the opening and closing movement, mastication, and speech. It is located anterior to the ear. The temporomandibular joint connects maxilla and mandible through the articular fossa, hence the slightest change that happens would cause serious matters such as pain, exiting, speech disorder, difficulty in opening and closing movement, headache, and even trismus. In a child or an adolescent, the symptoms are often vague; everything is interpreted as “pain”. This is probably why temporomandibular disorder are often undetected by dentists. Therefore, patience and accuracy is needed to determine the actual disorder through means of clinical and radiographic examination. The radiographic examination suitable for child is the transcranial projection. This projection is believed to be more accurate amongst other projection for child patients.

  11. The Efficacy of Training and Application of Severity of Illness Scoring Systems on Knowledge and Attitude of ICU Staff

    Directory of Open Access Journals (Sweden)

    Masoumeh Bagheri-Nesami

    2016-06-01

    Full Text Available The predicting scoring systems help us to patients' classification in order to receive services and medical care. It seems one of reasons for not using these systems is unaware of staffs. The aim of this study was assessment the effect of training predicting scoring systems and applying SOFA on knowledge and attitude of nurses and specialists in ICU wards of educational hospital in Sari city.This pre-experimentalstudy was performed using a self-made questionnaireto assessknowledge andattitudes. After primary assessment, participants were trained and applied SOFA for three months. Evaluation was performedinfour stages;before training, 10 days after training, onemonth and threemonths afterSOFA application. Resultswere analyzed bySPSSsoftware, descriptive tests and repeated measurement.Results show that therewere 43(71.7% female and mean age was 32.53±7.3 years. The average knowledge score was improved from very weak to excellent and the average attitude score was improved from moderate to excellent after three months of applying SOFA. Regarding the importance of these systems in the ICU management, we recommend this topic is included in nursing and medical curriculums. Also strategiesshould be considered forapplying themin all ICU wards in the country.

  12. A quantified risk-scoring system and rating model for postsurgical gastroparesis syndrome in gastric cancer patients.

    Science.gov (United States)

    Chen, Xiao-Dong; Mao, Chen-Chen; Zhang, Wei-Teng; Lin, Ji; Wu, Rui-Sen; Zhang, Feng-Min; Sun, Xiang-Wei; Chi, Chu-Huai; Shen, Xian; Wang, Peng-Fei

    2017-09-01

    The study aimed to investigate the relationship between obesity and postsurgical gastroparesis syndrome (PGS), and to construct a scoring system and a risk model to identify patients at high risk. A total of 634 patients were retrospectively analyzed. Clinical characteristics were evaluated via receiver operating characteristic (ROC) curve analysis. Logistic analysis was performed to determine the independent predictive indicators of PGS. A scoring system consisting of these indicators and a risk-rating model were constructed and evaluated via ROC curve analysis. Based on the ROC curves, the visceral fat area (VFA) cutoff value for PGS was 94.00. Logistic analysis showed that visceral obesity (VFA ≥ 94.00 cm(2) ), the reconstruction technique, and tumor size were independent prognostic factors for PGS. The scoring system could predict PGS reliably with a high area under the ROC curve ([AUC] = 0.769). A high-risk rating had a high AUC (AUC I = 0.56, AUC II = 0.65, and AUC III = 0.77), indicating that the risk-rating model could effectively screen patients at high risk of PGS. Visceral obesity defined by VFA effectively predicted PGS. Our scoring system may be a reliable instrument for identifying patients most at risk of PGS. © 2017 Wiley Periodicals, Inc.

  13. Analyzing the Factorial Structure of the Classroom Assessment Scoring System-Secondary Using a Bayesian Hierarchical Multivariate Ordinal Model

    Science.gov (United States)

    Yuan, Kun; McCaffrey, Daniel F.; Savitsky, Terrance D.

    2013-01-01

    Standardized teaching observation protocols have become increasingly popular in evaluating teaching in recent years. One of such protocols that has gained substantial interest from researchers and practitioners is the Classroom Assessment Scoring System-Secondary (CLASSS). According to the developer, CLASS-S has three domains of teacher-student…

  14. Identification of the optimal donor quality scoring system and measure of early renal function in kidney transplantation.

    LENUS (Irish Health Repository)

    Moore, Jason

    2009-02-27

    The early identification of kidney allografts at risk of later dysfunction has implications for clinical practice. Donor quality scoring systems (preoperative) and measures of early allograft function (first week postoperative) have previously shown practical utility. This study aimed to determine the optimal parameter(s) (preoperative and postoperative) with greatest predictive power for the development of subsequent allograft dysfunction.

  15. An Inmate Classification System Based on PCL: SV Factor Scores in a Sample of Prison Inmates

    Science.gov (United States)

    Wogan, Michael; Mackenzie, Marci

    2007-01-01

    Psychopaths represent a significant management challenge in a prison population. A sample of ninety-five male inmates from three medium security prisons was tested using the Hare Psychopathy Checklist: Screening Version (PCL:SV). Using traditional criteria, 22% of the inmates were classified as psychopaths. Scores on the two factor dimensions of…

  16. Volatility in School Test Scores: Implications for Test-Based Accountability Systems

    Science.gov (United States)

    Kane, Thomas J.; Staiger, Douglas O.

    2002-01-01

    By the spring of 2000, forty states had begun using student test scores to rate school performance. Twenty states have gone a step further and are attaching explicit monetary rewards or sanctions to a school's test performance. In this paper, the authors focus on accountability programs in which states measure the effectiveness of individual…

  17. Nurse-administered early warning score system can be used for emergency department triage

    DEFF Research Database (Denmark)

    Christensen, Dorthea; Jensen, Nanna Martin; Maaløe, Rikke

    2011-01-01

    Warning Score (BEWS). The BEWS is calculated on the basis of respiratory frequency, pulse, systolic blood pressure, temperature and level of consciousness. The aim of this study is to evaluate the ability of the BEWS to identify critically ill patients in the ED and to examine the feasibility of using...

  18. An Inmate Classification System Based on PCL: SV Factor Scores in a Sample of Prison Inmates

    Science.gov (United States)

    Wogan, Michael; Mackenzie, Marci

    2007-01-01

    Psychopaths represent a significant management challenge in a prison population. A sample of ninety-five male inmates from three medium security prisons was tested using the Hare Psychopathy Checklist: Screening Version (PCL:SV). Using traditional criteria, 22% of the inmates were classified as psychopaths. Scores on the two factor dimensions of…

  19. A cross-sectional study of the Birmingham Vasculitis Activity Score version 3 in systemic vasculitis

    NARCIS (Netherlands)

    Suppiah, Ravi; Mukhtyar, Chetan; Flossmann, Oliver; Alberici, Federico; Baslund, Bo; Batra, Rajbir; Brown, Denise; Holle, Julia; Hruskova, Zdenka; Jayne, David R. W.; Judge, Andrew; Little, Mark A.; Palmisano, Alessandra; Stegeman, Coen; Tesar, Vladimir; Vaglio, Augusto; Westman, Kerstin; Luqmani, Raashid

    2011-01-01

    Methods. A total of 238 patients with vasculitis from seven countries in Europe were evaluated at a single time point. Spearman's correlation coefficients were calculated between BVAS v. 3 scores, vasculitis activity index (VAI), physician's global assessment (PGA), the physician's treatment decisio

  20. 76 FR 16350 - Medical Devices; Ovarian Adnexal Mass Assessment Score Test System; Labeling; Black Box Restrictions

    Science.gov (United States)

    2011-03-23

    ... received may be posted without change to http://www.regulations.gov , including any personal information... combines the values into a single score that is then used to determine the likelihood that the pre-surgical... benefits (including potential economic, environmental, public health and safety, and other advantages...

  1. Managing What We Can Measure: Quantifying the Susceptibility of Automated Scoring Systems to Gaming Behavior

    Science.gov (United States)

    Higgins, Derrick; Heilman, Michael

    2014-01-01

    As methods for automated scoring of constructed-response items become more widely adopted in state assessments, and are used in more consequential operational configurations, it is critical that their susceptibility to gaming behavior be investigated and managed. This article provides a review of research relevant to how construct-irrelevant…

  2. Imperfect implementation of an early warning scoring system in a Danish teaching hospital

    DEFF Research Database (Denmark)

    Niegsch, Mark; Fabritius, Maria Louise; Anhøj, Jacob

    2013-01-01

    In 2007, the initiation of a patient safety campaign led to the introduction of Ward Observational Charts (WOC) and Medical Early Warning Score (MEWS) at Naestved Regional Hospital. This included systematic measuring of vital signs of all patients in order to prevent patient deterioration and ass...

  3. A cross-sectional study of the Birmingham Vasculitis Activity Score version 3 in systemic vasculitis

    NARCIS (Netherlands)

    Suppiah, Ravi; Mukhtyar, Chetan; Flossmann, Oliver; Alberici, Federico; Baslund, Bo; Batra, Rajbir; Brown, Denise; Holle, Julia; Hruskova, Zdenka; Jayne, David R. W.; Judge, Andrew; Little, Mark A.; Palmisano, Alessandra; Stegeman, Coen; Tesar, Vladimir; Vaglio, Augusto; Westman, Kerstin; Luqmani, Raashid

    Methods. A total of 238 patients with vasculitis from seven countries in Europe were evaluated at a single time point. Spearman's correlation coefficients were calculated between BVAS v. 3 scores, vasculitis activity index (VAI), physician's global assessment (PGA), the physician's treatment

  4. 78 FR 21623 - Public Housing Assessment System (PHAS): Capital Fund Final Scoring Notice

    Science.gov (United States)

    2013-04-11

    ... this sub-indicator as a measure of how the PHA is using the Capital Funds to make units available to... performer. HUD considers the occupancy of units as an integral measure of a high performing PHA. Issue.... The award of 5 points is awarded as a temporary measure to address the transition to the scoring...

  5. Comparative study of a wireless digital system and 2 PSP digital systems on proximal caries detection and pixel values.

    Science.gov (United States)

    dos Anjos Pontual, Andrea; de Melo, Daniela Pita; Pontual, Maria Luiza dos Anjos; de Almeida, Solange Maria; Haiter-Neto, Francisco

    2013-01-01

    This study compared the radiographic image quality of 2 photostimulable phosphor (PSP) plate systems with a radiographic system against a complementary metal oxide silicon (CMOS) system. Using the 3 digital systems, 160 approximal surfaces were radiographed under standardized conditions. Using a 5-point scale, 6 observers scored the resulting images for the presence of caries. The presence of caries was validated histologically, and the image receptors were evaluated using receiver operating characteristic curve analysis. The digital systems were used to take radiographs of an aluminum step wedge for objective analysis with pixel density measurements. The mean pixel values were analyzed statistically using the Kruskal-Wallis test and Dunn multiple comparison test (P system was comparable to the PSP plate systems and radiographic film.

  6. Predicting Prostate Biopsy Results Using a Panel of Plasma and Urine Biomarkers Combined in a Scoring System

    DEFF Research Database (Denmark)

    Albitar, Maher; Ma, Wanlong; Lund, Lars;

    2016-01-01

    , and PTEN in plasma and urine. Patient age, serum prostate-specific antigen (sPSA) level, and biomarkers data were used to develop two independent algorithms, one for predicting the presence of PCa and the other for predicting high-grade PCa (Gleason score [GS] ≥7). RESULTS: Using training and validation...... a scoring system to predict prostate biopsy results and the presence of high grade PCa. METHODS: Urine and plasma specimens were collected from 319 patients recommended for prostate biopsies. We measured the gene expression levels of UAP1, PDLIM5, IMPDH2, HSPD1, PCA3, PSA, TMPRSS2, ERG, GAPDH, B2M, AR...

  7. Basic imaging properties of an indirect flat-panel detector system employing irradiation side sampling (ISS) technology for chest radiography: comparison with a computed radiographic system.

    Science.gov (United States)

    Tanaka, Nobukazu; Yano, Yuki; Yabuuchi, Hidetake; Akasaka, Tsutomu; Sasaki, Masayuki; Ohki, Masafumi; Morishita, Junji

    2013-01-01

    The image quality and potential usefulness for patient skin-dose reduction of a newly developed flat-panel detector (FPD) system employing irradiation side sampling (ISS) were investigated and compared to a conventional computed radiography (CR) system. We used the X-ray beam quality of RQA 9 as noted in the standard evaluation method by the International Electrotechnical Commission 62220-1 to evaluate the image quality of the detector for chest radiography. The presampled modulation transfer function (MTF) of the ISS-FPD system was slightly higher than that of the CR system in the horizontal direction at more than 2.2 cycles/mm. However, the presampled MTF of the ISS-FPD system was slightly lower than that of the CR system in the vertical direction. The Wiener spectrum of the ISS-FPD system showed a 50-65 % lesser noise level than that of the CR system under the same exposure condition. The detective quantum efficiency of the ISS-FPD system was at least twice as great as that of the CR system. We conclude that the ISS-FPD system has the potential to reduce the patient skin dose compared to a conventional CR system for chest radiography.

  8. Efficiency of unenhanced MRI in the diagnosis of acute appendicitis: Comparison with Alvarado scoring system and histopathological results

    Energy Technology Data Exchange (ETDEWEB)

    Inci, Ercan, E-mail: ercan_inci@mynet.com [Department of Radiology, Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Incirli-Bakirkoy, Istanbul (Turkey); Hocaoglu, Elif; Aydin, Sibel; Palabiyik, Figen; Cimilli, Tan [Department of Radiology, Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Incirli-Bakirkoy, Istanbul (Turkey); Turhan, Ahmet Nuray; Ayguen, Ersan [Department of Surgery, Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul (Turkey)

    2011-11-15

    Purpose: The purpose of this study was to assess the diagnostic value of unenhanced magnetic resonance imaging (MRI) in the diagnosis of acute appendicitis and compare with Alvarado scores and histopathological results. Materials and methods: The study included 85 consecutive patients (mean age, 26.5 {+-} 11.3 years) who were clinically suspected of having acute appendicitis. Each patients Alvarado scores were recorded and unenhanced MRI was performed, consisting of T1-weighted, T2-weighted and fat-suppressed T2-weighted fast spin-echo sequences. The MR images were prospectively reviewed in consensus for the presence of acute appendicitis by two radiologists who were blinded to the results of the Alvarado scores. The study population were divided into three subgroups based on the MRI findings: Group I: definitely not appendicitis, Group II: probably appendicitis, Group III: definitely appendicitis. All patients were divided into two subgroups according to Alvarado scores as Group A (low: 1-6), and Group B (high: 7-10). MR findings were compared with Alvarado scores and histopathological findings. Results: Sixty-six (77.6%) of the 85 patients with clinically suspected acute appendicitis, had undergone surgery. The diagnosis of appendicitis could be correctly achieved with MRI in 55 (83.3%) of 57 (86.4%) patients with histopathologically proven acute appendicitis. The sensitivity, specificity, positive predictive value and negative predictive value of MRI examination and Alvarado scoring system in the diagnosis of acute appendicitis were 96.49%, 66.67%, 94.83%, 75.0% and 84.21%, 66.67%, 94.12%, 40.0%, respectively. Conclusions: MRI is a valuable technique for detecting acute appendicitis even in the cases with low Alvarado scores. To increase the diagnostic accuracy and preventing unnecessary laparotomies for suspected appendicitis, shorter and cheaper unenhanced basic MRI may be performed.

  9. Reproducibility of the NEPTUNE descriptor-based scoring system on whole-slide images and histologic and ultrastructural digital images.

    Science.gov (United States)

    Barisoni, Laura; Troost, Jonathan P; Nast, Cynthia; Bagnasco, Serena; Avila-Casado, Carmen; Hodgin, Jeffrey; Palmer, Matthew; Rosenberg, Avi; Gasim, Adil; Liensziewski, Chrysta; Merlino, Lino; Chien, Hui-Ping; Chang, Anthony; Meehan, Shane M; Gaut, Joseph; Song, Peter; Holzman, Lawrence; Gibson, Debbie; Kretzler, Matthias; Gillespie, Brenda W; Hewitt, Stephen M

    2016-07-01

    The multicenter Nephrotic Syndrome Study Network (NEPTUNE) digital pathology scoring system employs a novel and comprehensive methodology to document pathologic features from whole-slide images, immunofluorescence and ultrastructural digital images. To estimate inter- and intra-reader concordance of this descriptor-based approach, data from 12 pathologists (eight NEPTUNE and four non-NEPTUNE) with experience from training to 30 years were collected. A descriptor reference manual was generated and a webinar-based protocol for consensus/cross-training implemented. Intra-reader concordance for 51 glomerular descriptors was evaluated on jpeg images by seven NEPTUNE pathologists scoring 131 glomeruli three times (Tests I, II, and III), each test following a consensus webinar review. Inter-reader concordance of glomerular descriptors was evaluated in 315 glomeruli by all pathologists; interstitial fibrosis and tubular atrophy (244 cases, whole-slide images) and four ultrastructural podocyte descriptors (178 cases, jpeg images) were evaluated once by six and five pathologists, respectively. Cohen's kappa for inter-reader concordance for 48/51 glomerular descriptors with sufficient observations was moderate (0.40transformation. NEPTUNE digital pathology scoring system enables novel morphologic profiling of renal structures. For all histologic and ultrastructural descriptors tested with sufficient observations, moderate-to-excellent concordance was seen for 31/54 (57%). Descriptors not sufficiently represented will require further testing. This study proffers the NEPTUNE digital pathology scoring system as a model for standardization of renal biopsy interpretation extendable outside the NEPTUNE consortium, enabling international collaborations.

  10. Testing an OMERACT MRI scoring system for peripheral psoriatic arthritis in cross-sectional and longitudinal settings

    DEFF Research Database (Denmark)

    McQueen, Fiona; Lassere, Marissa; Duer-Jensen, Anne

    2009-01-01

    OBJECTIVE: Magnetic resonance imaging (MRI) is increasingly used to measure articular inflammation and damage in patients with psoriatic arthritis (PsA). We evaluated the reliability of a new OMERACT PsA MRI scoring system, PsAMRIS, in PsA fingers. METHODS: In 2 separate studies, MRI scans were...... obtained from patients with clinical evidence of synovitis or dactylitis of the fingers. For the first cross-sectional study, images were obtained at one timepoint. For the second longitudinal study, images were obtained at 2 timepoints, 6 weeks apart. Scans were scored using PsAMRIS in an international......, reliability for change scores was acceptable only for synovitis and tenosynovitis. CONCLUSION: Further development and testing of the PsAMRIS is planned to improve its performance as a clinical and research tool to identify and measure pathology in peripheral joint PsA....

  11. Post total thyroidectomy hypocalcemia: A novel multi-factorial scoring system to enable its prediction to facilitate an early discharge

    Directory of Open Access Journals (Sweden)

    P V Pradeep

    2013-01-01

    Full Text Available Context: No single factor can predict the occurrence of post total thyroidectomy (TT hypocalcemia. Aims: This study was conducted to look at various factors usually implicated in post TT clinically significant hypocalcemia (CSH and to develop a scoring system using a combination of these factors to predict CSH. Settings and Design: Prospective study, tertiary care center. Materials and Methods: 145 patients, who underwent total thyroidectomy for benign goiters and early carcinoma thyroid ( 3 had 91% sensitivity, 84% specificity with a PPV of 71% and NPV of 95%, whereas score of ≥ 4 had 100% specificity and PPV in predicting CSH. Conclusions: CSH after TT is multi-factorial, and a combination of factors (Hypocalcemia prediction score > 3 can be used to predict it so as to discharge patients within 24 hours after surgery.

  12. A new Leukemia Prognostic Scoring System for refractory/relapsed adult acute myelogeneous leukaemia patients: a GOELAMS study.

    Science.gov (United States)

    Chevallier, P; Labopin, M; Turlure, P; Prebet, T; Pigneux, A; Hunault, M; Filanovsky, K; Cornillet-Lefebvre, P; Luquet, I; Lode, L; Richebourg, S; Blanchet, O; Gachard, N; Vey, N; Ifrah, N; Milpied, N; Harousseau, J-L; Bene, M-C; Mohty, M; Delaunay, J

    2011-06-01

    A simplified prognostic score is presented based on the multivariate analysis of 138 refractory/relapsed acute myeloid leukaemia (AML) patients (median age 55 years, range: 19-70) receiving a combination of intensive chemotherapy+Gemtuzumab as salvage regimen. Overall, 2-year event-free survival (EFS) and overall survival (OS) were 29±4% and 36±4%, respectively. Disease status (relapse Leukemia Prognostic Scoring System was then validated on an independent cohort of 111 refractory/relapsed AML patients. This new simplified prognostic score, using three clinical and biological parameters routinely applied, allow to discriminate around two third of the patients who should benefit from a salvage intensive regimen in the setting of refractory/relapsed AML patients. The other one third of the patients should receive investigational therapy.

  13. Clinical and radiographical evaluation of mineral trioxide aggregate, biodentine and propolis as pulpotomy medicaments in primary teeth

    Directory of Open Access Journals (Sweden)

    Bharti Kusum

    2015-11-01

    Full Text Available Objectives The purpose of this study was to evaluate the efficacy of mineral trioxide aggregate (MTA, Biodentine and Propolis as pulpotomy medicaments in primary dentition, both clinically and radiographically. Materials and Methods A total of 75 healthy 3 to 10 yr old children each having at least one carious primary molar tooth were selected. Random assignment of the pulpotomy medicaments was done as follows: Group I, MTA; Group II, Biodentine; Group III, Propolis. All the pulpotomized teeth were evaluated at 3, 6, and 9 mon clinically and radiographically, based on the scoring criteria system. Results The clinical success rates were found to be similar among the three groups at 3 and 6 mon where as a significant decrease in success rate was observed in Group III (84% compared to both Group I (100% and Group II (100% at 9 mon. Radiographic success rates over a period of 9 mon in Groups I, II, and III were 92, 80, and 72%, respectively. Conclusions Teeth treated with MTA and Biodentine showed more favorable clinical and radiographic success as compared to Propolis at 9 mon follow-up.

  14. Clinical and radiographical evaluation of mineral trioxide aggregate, biodentine and propolis as pulpotomy medicaments in primary teeth

    Science.gov (United States)

    Rakesh, Kumar; Richa, Khanna

    2015-01-01

    Objectives The purpose of this study was to evaluate the efficacy of mineral trioxide aggregate (MTA), Biodentine and Propolis as pulpotomy medicaments in primary dentition, both clinically and radiographically. Materials and Methods A total of 75 healthy 3 to 10 yr old children each having at least one carious primary molar tooth were selected. Random assignment of the pulpotomy medicaments was done as follows: Group I, MTA; Group II, Biodentine; Group III, Propolis. All the pulpotomized teeth were evaluated at 3, 6, and 9 mon clinically and radiographically, based on the scoring criteria system. Results The clinical success rates were found to be similar among the three groups at 3 and 6 mon where as a significant decrease in success rate was observed in Group III (84%) compared to both Group I (100%) and Group II (100%) at 9 mon. Radiographic success rates over a period of 9 mon in Groups I, II, and III were 92, 80, and 72%, respectively. Conclusions Teeth treated with MTA and Biodentine showed more favorable clinical and radiographic success as compared to Propolis at 9 mon follow-up. PMID:26587413

  15. Developing a novel risk-scoring system for predicting relapse in patients with ulcerative colitis: A prospective cohort study.

    Science.gov (United States)

    Hosseini, Seyed Vahid; Safarpour, Ali Reza; Taghavi, Seyed Alireza

    2015-01-01

    Ulcerative Colitis (UC) follows a natural clinical course of relapses and remissions. The aim of this study was to construct a risk-scoring formula in order to enable predicting relapses in patients with UC. From October 2012 to October 2013, 157 patients from Shiraz, southern Iran who were diagnosed with UC and in remission were enrolled. At 3-month intervals, multiple risk factors of hemoglobin, complete blood counts, serum iron and albumin, erythrocyte sedimentation rate, and faecal calprotectin levels, sex, age, cigarette smoking, positive family history of inflammatory bowel diseases, past history of appendectomy, extra-intestinal accompanying diseases, extent of disease at the beginning of study, number of previous relapses, duration of disease and duration of remission before the study were assessed. Univariate and multivariate logistic regression were applied to fit the final model. The new risk-scoring system accuracy was assessed using receiver-operating-characteristics (ROC) curve analysis. Seventy four patients (48.1%) experienced a relapse. Multivariate analysis revealed that relapses could significantly be predicted by the level of fecal calprotectin (OR=8.1), age (OR=9.2), the Seo activity index (OR=52.7), and the number of previous relapses (OR=4.2). The risk scoring formula was developed using the regression coefficient values of the aforementioned variables. Four predictor variables were significant in the final model and were used in our risk-scoring formula. It is recommended that patients who achieve high scores are diligently observed, treated, and followed up.

  16. Comparison of WHO 1973, WHO/ISUP 1998, WHO 1999 grade and combined scoring systems in evaluation of bladder carcinoma.

    Science.gov (United States)

    Bircan, Sema; Candir, Ozden; Serel, T Ahmet

    2004-01-01

    To compare WHO 1973, WHO/ISUP 1998 and WHO 1999 histologic grading systems, and also to evaluate the primary (most common) and secondary (second most common) patterns of cancer growth according to these three grading systems. The study consisted of 87 bladder transurethral resections that were classified as grade 1, 2 and 3, and papillary urothelial neoplasm of low malignant potential (PUNLMP), low grade (LG) and high grade (HG) carcinoma considering WHO 1973 and WHO/ISUP, respectively. The WHO 1999 system was subdivided high grade into grades 2 and 3 (HG-2 and HG-3). For combined scoring, primary (most common) and secondary (second most common) grades according to extension were recorded for three grading systems. The number was repeated when only grade was seen in all extension of the tissue examined. A final combined score was obtained which ranged from 2 to 6 for the WHO 1973 and WHO/ISUP 1998 systems and from 2 to 8 for the WHO 1999 schema. The TNM system was used for the pathologic staging. When considering the pathological stage, there were statistical differences between the WHO 1973 grades (p=0.011 and p=0.000), and LG and HG carcinomas of WHO/ISUP 1998 (p=0.000) and also the WHO 1999 grades (p=0.010 and p=0.003), except PUNLMP. Regarding the combined scoring, significant differences were found between score 4 (2+2) and 5 (2+3) of WHO 1973 (p=0.014) and score 5 (LG+HG) and 6 (HG+HG) of WHO/ISUP 1998 (p=0.011). There was also a significant difference between scores 4 and 6, and 6 and 8 of the WHO 1999 combined scoring system (p=0.019 and p=0.019). WHO 1973, WHO/ISUP 1998 and WHO 1999 systems were positively correlated with the pathological stage (r(s)=0.30, r(s)=0.52 and r(s)=0.50, respectively), whereas there was weak association between the combined scoring systems and stage (r(s)=0.20, r(s)=0.18 and r(s)=0.19). Comparing these grading systems, the grade 2 of WHO 1973 was subdivided into LG and HG in WHO/ISUP 1998 and also LG-1and HG-2 in WHO 1999 systems

  17. Clinical risk scoring system for predicting extended-spectrum β-lactamase-producing Escherichia coli infection in hospitalized patients.

    Science.gov (United States)

    Kengkla, K; Charoensuk, N; Chaichana, M; Puangjan, S; Rattanapornsompong, T; Choorassamee, J; Wilairat, P; Saokaew, S

    2016-05-01

    Extended spectrum β-lactamase-producing Escherichia coli (ESBL-EC) has important implications for infection control and empiric antibiotic prescribing. This study aims to develop a risk scoring system for predicting ESBL-EC infection based on local epidemiology. The study retrospectively collected eligible patients with a positive culture for E. coli during 2011 to 2014. The risk scoring system was developed using variables independently associated with ESBL-EC infection through logistic regression-based prediction. Area under the receiver-operator characteristic curve (AuROC) was determined to confirm the prediction power of the model. Predictors for ESBL-EC infection were male gender [odds ratio (OR): 1.53], age ≥55 years (OR: 1.50), healthcare-associated infection (OR: 3.21), hospital-acquired infection (OR: 2.28), sepsis (OR: 1.79), prolonged hospitalization (OR: 1.88), history of ESBL infection within one year (OR: 7.88), prior use of broad-spectrum cephalosporins within three months (OR: 12.92), and prior use of other antibiotics within three months (OR: 2.14). Points scored ranged from 0 to 47, and were divided into three groups based on diagnostic performance parameters: low risk (score: 0-8; 44.57%), moderate risk (score: 9-11; 21.85%) and high risk (score: ≥12; 33.58%). The model displayed moderate power of prediction (AuROC: 0.773; 95% confidence interval: 0.742-0.805) and good calibration (Hosmer-Lemeshow χ(2) = 13.29; P = 0.065). This tool may optimize the prescribing of empirical antibiotic therapy, minimize time to identify patients, and prevent spreading of ESBL-EC. Prior to adoption into routine clinical practice, further validation study of the tool is needed. Copyright © 2016 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved.

  18. Validation of the Rockall scoring system for outcomes from non-variceal upper gastrointestinal bleeding in a Canadian setting

    Institute of Scientific and Technical Information of China (English)

    Robert A Enns; Yves M Gagnon; Alan N Barkun; David Armstrong; Jamie C Gregor; Richard N Fedorak

    2006-01-01

    AIM: To validate the Rockall scoring system for predicting outcomes of rebleeding, and the need for a surgical procedure and death.METHODS: We used data extracted from the Registry of Upper Gastrointestinal Bleeding and Endoscopy including information of 1869 patients with non-variceal upper gastrointestinal bleeding treated in Canadian hospitals.Risk scores were calculated and used to classify patients based on outcomes. For each outcome, we used x2 goodness-of-fit tests to assess the degree of calibration,and built receiver operating characteristic curves and calculated the area under the curve (AUC) to evaluate the discriminative ability of the scoring system.RESULTS: For rebleeding, the x2 goodness-of-fit test indicated an acceptable fit for the model [x2 (8) = 12.83,P = 0.12]. For surgical procedures [x2 (8) = 5.3, P = 0.73]and death [x2 (8) = 3.78, P = 0.88], the tests showed solid correspondence between observed proportions and predicted probabilities. The AUC was 0.59 (95% CI:0.55-0.62) for the outcome of rebleeding and 0.60 (95% CI: 0.54-0.67) for surgical procedures, representing a poor discriminative ability of the scoring system. For the outcome of death, the AUC was 0.73 (95% CI: 0.69-0.78),indicating an acceptable discriminative ability.CONCLUSION: The Rockall scoring system provides an acceptable tool to predict death, but performs poorly for endpoints of rebleeding and surgical procedures.

  19. Radiographic adenoid evaluation - suggestion of referral parameters

    Directory of Open Access Journals (Sweden)

    Murilo F.N. Feres

    2014-06-01

    Full Text Available OBJECTIVE: this study aimed to evaluate the usefulness of current radiographic measurements, which were originally conceived to evaluate adenoid hypertrophy, as potential referral parameters. METHODS: children aged from 4 to 14 years, of both genders, who presented nasal obstruction complaints, were subjected to cavum radiography. Radiographic examinations (n = 120 were evaluated according to categorical and quantitative parameters, and data were compared to gold-standard videonasopharyngoscopic examination, regarding accuracy (sensitivity, negative predictive value, specificity, and positive predictive value. RESULTS: radiographic grading systems presented low sensitivity for the identification of patients with two-thirds choanal space obstruction. However, some of these parameters presented relatively high specificity rates when three-quarters adenoid obstruction was the threshold of interest. Amongst the quantitative variables, a mathematical model was found to be more suitable for identifying patients with more than two-thirds obstruction. CONCLUSION: this model was shown to be potentially useful as a screening tool to include patients with, at least, two-thirds adenoid obstruction. Moreover, one of the categorical parameters was demonstrated to be relatively more useful, as well as a potentially safer assessment tool to exclude patients with less than three-quarters obstruction, to be indicated for adenoidectomy.

  20. End points for validating early warning scores in the context of rapid response systems

    DEFF Research Database (Denmark)

    Pedersen, N E; Oestergaard, D.; Lippert, A.

    2016-01-01

    INTRODUCTION: When investigating early warning scores and similar physiology-based risk stratification tools, death, cardiac arrest and intensive care unit admission are traditionally used as end points. A large proportion of the patients identified by these end points cannot be saved, even...... the items receiving highest ratings. CONCLUSIONS: End points relating to death, cardiac arrest and intensive care unit admission currently comprise the most obvious compromises for investigating early warning scores and similar risk stratification tools. Additional end points from the gross list...... in the Delphi process, and the experts' combined rating of the usefulness of each suggestion was established. RESULTS: A gross list of 86 suggestions for end points, relating to 13 themes, was produced. No items were uniformly recognised as ideal. The themes cardiac arrest, death, and level of care contained...

  1. Estimation of entrance dose on chest radiographs according to the exposure index on Computerized Radiology System: preliminary results; Estimativa de dose de entrada a partir do indice de exposicao em sistema CR: resultados preliminares

    Energy Technology Data Exchange (ETDEWEB)

    Donomai, Luana Kaoru; Jornada, Tiago da Silva; Daros, Kellen Adriana Curci, E-mail: luana.donomai@gmail.com, E-mail: tiagosjornada@gmail.com, E-mail: daros.kellen@unifesp.br [Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, SP (Brazil)

    2014-07-01

    Digital radiology has improved image quality in radiographs in comparison to screen/film systems though the visual control of the quantity of radiation involved on these exams became more demanding due to the low perception of over and underexposed images. Therefore, this study aims to analyze the exposure index (EI) from chest examinations and relate them to the entrance skin dose. Indices from 29 patients and kerma entrance dose were correlated. A correlation coefficient equal to 0,6881 was calculated. EI and entrance dose are correlated positive and moderately, indicating the relevance to deepen the subject. (author)

  2. Ratio analysis and Piotroski scoring system in the automobile industry in Croatia

    OpenAIRE

    Morana Mesarić

    2014-01-01

    To gain insight into operational efficiency, sustainable profitability, the ability to fulfil commitments, use of funds borrowed or investment risk or operational self-sufficiency, it is necessary to conduct analyses of financial statements usually known as ratio analysis. The paper provides analyses of five Croatian general distributors of the automobile industry. Ratios used in the analyses are those used in the Piotroski f-scoring analyses, which are famous for assessing financial capaciti...

  3. Arterial reconstruction after mangled extremity: injury severity scoring systems are not predictive of limb salvage.

    Science.gov (United States)

    Elsharawy, Mohamed Amin

    2005-01-01

    The Vascular Unit at Suez Canal University Hospital in Egypt covers a wide area with high rates of severe injuries. This is a prospective study of mangled extremities to identify risk factors associated with limb loss in these patients. Between December 2000 and August 2003, a prospective study on all patients with arterial injuries in mangled extremities was undertaken. All patients were scored using the Mangled Extremity Severity Score (MESS) and the Mangled Extremity Severity Index (MESI). During this period, arterial reconstruction was performed in 62 patients. Primary patency, secondary patency, and limb salvage rates were 81%, 85.5%, and 93.5%, respectively. The only factor affecting limb salvage (statistical trend) was the site of trauma (upper limb 100% vs lower limb 89%; p = .08%). There was no significant effect related to the mechanism of trauma (blunt 90% vs stab 100%; p = .125), MESS ( 7, 91%; p = .22), and MESI ( 20, 90.5%; p = .154). Upper limb injuries were the least likely to lead to amputation. We recommend that all injuries, whatever their score, should be surgically explored before treatment decisions are made.

  4. Analysis of Surgical Site Infection after Musculoskeletal Tumor Surgery: Risk Assessment Using a New Scoring System

    Directory of Open Access Journals (Sweden)

    Satoshi Nagano

    2014-01-01

    Full Text Available Surgical site infection (SSI has not been extensively studied in musculoskeletal tumors (MST owing to the rarity of the disease. We analyzed incidence and risk factors of SSI in MST. SSI incidence was evaluated in consecutive 457 MST cases (benign, 310 cases and malignant, 147 cases treated at our institution. A detailed analysis of the clinical background of the patients, pre- and postoperative hematological data, and other factors that might be associated with SSI incidence was performed for malignant MST cases. SSI occurred in 0.32% and 12.2% of benign and malignant MST cases, respectively. The duration of the surgery (P=0.0002 and intraoperative blood loss (P=0.0005 was significantly more in the SSI group than in the non-SSI group. We established the musculoskeletal oncological surgery invasiveness (MOSI index by combining 4 risk factors (blood loss, operation duration, preoperative chemotherapy, and the use of artificial materials. The MOSI index (0–4 points score significantly correlated with the risk of SSI, as demonstrated by an SSI incidence of 38.5% in the group with a high score (3-4 points. The MOSI index score and laboratory data at 1 week after surgery could facilitate risk evaluation and prompt diagnosis of SSI.

  5. Comparison of Hay's criteria with Nugent's scoring system for diagnosis of bacterial vaginosis.

    Science.gov (United States)

    Chawla, Rohit; Bhalla, Preena; Chadha, Sanjim; Grover, Sujatha; Garg, Suneela

    2013-01-01

    Although Nugent's criterion is considered as the gold standard for the diagnosis of bacterial vaginosis (BV), the method requires an experienced slide reader and considerable time and skill. In this study, we compared the method of Hay and Ison with Nugent's scoring criteria. Vaginal specimens were collected from a total of 213 women, presenting with or without the symptoms of vaginitis. Diagnosis of BV was done using Nugent' and Hay's method. Sensitivity, specificity, and predictive values for positive and negative test were calculated for Hay's method using Nugent's method as the gold standard. We diagnosed 70 cases (32.86%) of BV by Nugent's method and 87 (40.85%) cases by the Hay's method. Sensitivity, specificity, predictive value of positive result, predictive value of negative result, and Kappa value when evaluating Hay's criteria using Nugent's criteria as the gold standard were ≥97.2%, ≥88.1%, ≥80.4%, ≥97.1%, and ≥0.830, respectively, when Hay's grade II and/or Nugent's intermediate score were considered either as negative or positive or excluded. Using Nugent score for the intermediate group is the most difficult. Hay's method shows good agreement with the gold standard method of Nugent et al. and can be used as an alternative to Nugent's criteria in busy tertiary care hospitals.

  6. Practical guidelines for radiographers to improve computed radiography image quality.

    Science.gov (United States)

    Pongnapang, N

    2005-10-01

    Computed Radiography (CR) has become a major digital imaging modality in a modern radiological department. CR system changes workflow from the conventional way of using film/screen by employing photostimulable phosphor plate technology. This results in the changing perspectives of technical, artefacts and quality control issues in radiology departments. Guidelines for better image quality in digital medical enterprise include professional guidelines for users and the quality control programme specifically designed to serve the best quality of clinical images. Radiographers who understand technological shift of the CR from conventional method can employ optimization of CR images. Proper anatomic collimation and exposure techniques for each radiographic projection are crucial steps in producing quality digital images. Matching image processing with specific anatomy is also important factor that radiographers should realise. Successful shift from conventional to fully digitised radiology department requires skilful radiographers who utilise the technology and a successful quality control program from teamwork in the department.

  7. Monitoring Radiographic Brain Tumor Progression

    Directory of Open Access Journals (Sweden)

    John H. Sampson

    2011-03-01

    Full Text Available Determining radiographic progression in primary malignant brain tumors has posed a significant challenge to the neuroncology community. Glioblastoma multiforme (GBM, WHO Grade IV through its inherent heterogeneous enhancement, growth patterns, and irregular nature has been difficult to assess for progression. Our ability to detect tumor progression radiographically remains inadequate. Despite the advanced imaging techniques, detecting tumor progression continues to be a clinical challenge. Here we review the different criteria used to detect tumor progression, and highlight the inherent challenges with detection of progression.

  8. The future for the radiographer

    DEFF Research Database (Denmark)

    Mussmann, Bo Redder

    2007-01-01

    implemented reporting as a part of the radiographers line of work. They report on peripheral skeleton and ultrasoundexaminations which they have done for quite some time now, and the next move will be the pelvis and the vertebral column. The implementation of the reporting radiographers has contributed...... with higher quality images and more efficiency in the workload. It has also resulted in quicker replies for the patients. I greet this development welcome since it gives even more variation in our profession. However there is also reason to maintain a critical attitude towards the sliding of competences. We...

  9. The relationship between nailfold capillaroscopic assessment and telangiectasia score with severity of peripheral vascular involvement in systemic sclerosis.

    Science.gov (United States)

    Yalcinkaya, Yasemin; Pehlivan, Ozlem; Omma, Ahmet; Alpay, Nilufer; Erer, Burak; Kamali, Sevil; Ocal, Lale; Inanc, Murat

    2015-01-01

    To determine the association of nailfold video-capillaroscopy (NVC) findings and telangiectasia score with digital ulcer (DU) history and severity of peripheral vascular involvement (PVI) in systemic sclerosis (SSc). Fifty-nine SSc patients fulfilling Leroy & Medsger criteria were evaluated including telangiectasia score, disease activity and severity scores. NVC was performed according to qualitative (early, active and late patterns) and semi-quantitative assessments. When DU+ and DU- groups were compared; the mean score of capillary number (CN) was 2.0±0.5 vs. 1.4±0.7 (p<0.001), irregularly enlarged capillaries (IEC) was 1.8±0.6 vs. 1.4±0.7 (p<0.05), microangiopathy evolution score (MES) was 2.5±1.5 vs. 1.8±1.0 (p<0.05) and 'early' pattern was significantly less frequent in DU+ patients (1 vs. 9, p=0.016). The frequency of severe-PVI (Medsger severity score of 2-4) was 22% in females (12/54) and 80% in males (4/5). When severe and non-severe groups were compared; the mean score of CN was 2.1±0.4 vs. 1.5±0.7 (p<0.001), MES was 2.8±1.6 vs. 1.8±1.1 (p<0.05) and 'early' pattern was significantly less frequent in patients with severe PVI (0 vs. 9, p=0.049). The mean values of telangiectasia score were similar between groups. DU history and severe PVI in SSc were associated with capillary loss and microangiopathy. 'Early' NVC pattern was very rare in patients with DU history and was not found in severe PVI. Severe PVI in males was more frequent than females. Telangiectasia scores were not found to be related to PVI. NVC may be a helpful method in the assessment of SSc patients for PVI prognosis, warranting prospective studies.

  10. Prostate Imaging Reporting and Data System and Likert Scoring System: Multiparametric MR Imaging Validation Study to Screen Patients for Initial Biopsy.

    Science.gov (United States)

    Renard-Penna, Raphaëlle; Mozer, Pierre; Cornud, François; Barry-Delongchamps, Nicolas; Bruguière, Eric; Portalez, Daniel; Malavaud, Bernard

    2015-05-01

    To compare the diagnostic performance of the magnetic resonance (MR) imaging-based Prostate Imaging Reporting and Data System (PI-RADS) and a Likert scale in the detection of prostate cancer in a cohort of patients undergoing initial prostate biopsy. This institutional review board-approved two-center prospective study included 118 patients with normal digital rectal examination (DRE) results but elevated prostate-specific antigen (PSA) levels (4-20 ng/mL) who were referred for initial prostate biopsies and had one suspicious (Likert scale score, ≥3) focus at prebiopsy 1.5-T multiparametric MR imaging performed with T2-weighted, diffusion-weighted [DW], and dynamic contrast material-enhanced imaging. Targeted core biopsies and random systematic core biopsies were performed. The elementary unit for analysis was the core. Relationships were assessed by using the Mann-Whitney U test. Yates corrected and Pearson χ(2) tests were used to evaluate categoric variables. A training set was randomly drawn to construct the receiver operating characteristic curves for the summed PI-RADS scores and for the Likert scale scores. The thresholds to recommend biopsy were obtained from the Youden J statistics and were tested in the remaining validation set in terms of predictive characteristics. Interobserver variability was analyzed by using weighed κ statistics in a random set of 50 patients. Higher T2-weighted, DW, and dynamic contrast-enhanced imaging PI-RADS scores were observed in areas that yielded cancer-positive cores. The percentage of positive cores increased with the sum of scores aggregated in five classes as follows: For summed PI-RADS scores of 3-5, the percentage of positive cores was 2.3%; for scores of 6-8, it was 5.8%; for scores of 9 or 10, it was 24.7%; for scores of 11 or 12, it was 51.8%; and for scores of 13-15, it was 72.1% (P for trend, Likert scale scores of 3 or greater were 93.8%, 73.6%, 44.3%, 98.1%, and 73.3%. Good interobserver agreement was

  11. Predicting short-term survival after liver transplantation on eight score systems: a national report from China Liver Transplant Registry.

    Science.gov (United States)

    Ling, Qi; Dai, Haojiang; Zhuang, Runzhou; Shen, Tian; Wang, Weilin; Xu, Xiao; Zheng, Shusen

    2017-02-13

    To compare the performance of eight score systems (MELD, uMELD, MELD-Na. iMELD, UKELD, MELD-AS, CTP, and mCTP) in predicting the post-transplant mortality, we analyzed the data of 6,014 adult cirrhotic patients who underwent liver transplantation between January 2003 and December 2010 from the China Liver Transplant Registry database. In hepatitis B virus (HBV) group, MELD, uMELD and MELD-AS showed good predictive accuracies at 3-month mortality after liver transplantation; by comparison with other five models, MELD presented the best ability in predicting 3-month, 6-month and 1-year mortality, showing a significantly better predictive ability than UKELD and iMELD. In hepatitis C virus and Alcohol groups, the predictive ability did not differ significantly between MELD and other models. Patient survivals in different MELD categories were of statistically significant difference. Among patients with MELD score >35, a new prognostic model based on serum creatinine, need for hemodialysis and moderate ascites could identify the sickest one. In conclusion, MELD is superior to other score systems in predicting short-term post-transplant survival in patients with HBV-related liver disease. Among patients with MELD score >35, a new prognostic model can identify the sickest patients who should be excluded from waiting list to prevent wasteful transplantation.

  12. QT dispersion and prognostication of the outcome in acute cardiotoxicities: A comparison with SAPS II and APACHE II scoring systems.

    Science.gov (United States)

    Hassanian-Moghaddam, Hossein; Amiri, Hassan; Zamani, Nasim; Rahimi, Mitra; Shadnia, Shahin; Taherkhani, Maryam

    2014-06-01

    We aimed to evaluate the efficacy of QT dispersion (QTD) in determining the outcome of the patients poisoned by cardiotoxic medications and toxins. Patients who referred to our emergency department (ED) due to acute toxicity with any cardiotoxic medication or toxin and were admitted to medical toxicology intensive care unit (MTICU) were enrolled into the study. A questionnaire containing the demographic characteristics, vital signs, laboratory tests, electrocardiographic (ECG) parameters of the first ECG taken on MTICU or ED admission, simplified acute physiology score (SAPS), and acute physiology and chronic health evaluation (APACHE) score was filled for every single patient. QTD was manually calculated. The patients were divided into two groups of survivors and non-survivors and compared. Although QTD was not significantly different between the survivors and non-survivors (P = 0.8), SAPS II and APACHE II score were so. SAPS and APACHE had the highest sensitivity and specificity in determining the patients' mortality, respectively. SAPS had the highest sensitivity, and QTD had the highest specificity in predicting the later development of the complications. SAPS II and APACHE II scoring systems are the best systems for prognostication of death in patients with acute cardiotoxic medication-induced poisonings. QTD can be successfully used for the prediction of complications.

  13. Scoring system based on electrocardiogram features to predict the type of heart failure in patients with chronic heart failure

    Directory of Open Access Journals (Sweden)

    Hendry Purnasidha Bagaswoto

    2016-12-01

    Full Text Available ABSTRACT Heart failure is divided into heart failure with reduced ejection fraction (HFrEF and heart failure with preserved ejection fraction (HFpEF. Additional studies are required to distinguish between these two types of HF. A previous study showed that HFrEF is less likely when ECG findings are normal. This study aims to create a scoring system based on ECG findings that will predict the type of HF. We performed a cross-sectional study analyzing ECG and echocardiographic data from 110 subjects. HFrEF was defined as an ejection fraction ≤40%. Fifty people were diagnosed with HFpEF and 60 people suffered from HFrEF. Multiple logistic regression analysis revealed certain ECG variables that were independent predictors of HFrEF i.e., LAH, QRS duration >100 ms, RBBB, ST-T segment changes and prolongation of the QT interval. Based on ROC curve analysis, we obtained a score for HFpEF of -1 to +3, while HFrEF had a score of +4 to +6 with 76% sensitivity, 96% specificity, 95% positive predictive value, an 80% negative predictive value and an accuracy of 86%. The scoring system derived from this study, including the presence or absence of LAH, QRS duration >100 ms, RBBB, ST-T segment changes and prolongation of the QT interval can be used to predict the type of HF with satisfactory sensitivity and specificity

  14. Endodontic radiography: who is reading the digital radiograph?

    Science.gov (United States)

    Tewary, Shalini; Luzzo, Joseph; Hartwell, Gary

    2011-07-01

    Digital radiographic imaging systems have undergone tremendous improvements since their introduction. Advantages of digital radiographs over conventional films include lower radiation doses compared with conventional films, instantaneous images, archiving and sharing images easily, and manipulation of several radiographic properties that might help in diagnosis. A total of 6 observers including 2 endodontic residents, 3 endodontists, and 1 oral radiologist evaluated 150 molar digital periapical radiographs to determine which of the following conditions existed: normal periapical tissue, widened periodontal ligament, or presence of periapical radiolucency. The evaluators had full control over the radiograph's parameters of the Planmeca Dimaxis software program. All images were viewed on the same computer monitor with ideal vie-wing conditions. The same 6 observers evaluated the same 150 digital images 3 months later. The data were analyzed to determine how well the evaluators agreed with each other (interobserver agreement) for 2 rounds of observations and with themselves (intraobserver agreement). Fleiss kappa statistical analysis was used to measure the level of agreement among multiple raters. The overall Fleiss kappa value for interobserver agreement for the first round of interpretation was 0.34 (P digital radiographs are used. The factors that appeared to have the most impact were the years of experience of the examiner and familiarity of the operator with a given digital system. Copyright © 2011 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  15. Evaluation of clinical features scoring system as screening tool for influenza A (H1N1 in epidemic situations

    Directory of Open Access Journals (Sweden)

    P Ranjan

    2012-01-01

    Full Text Available Background: Influenza A (H1N1 hit the headlines in recent times and created mass hysteria and general panic. The high cost and non-availability of diagnostic laboratory tests for swine flu, especially in the developing countries underlines the need of having a cheaper, easily available, yet reasonably accurate screening test. Aims: This study was carried out to develop a clinical feature-based scoring system (CFSS for influenza A (H1N1 and to evaluate its suitability as a screening tool when large numbers of influenza-like illness cases are suspect. Settings and Design: Clinical-record based study, carried out retrospectively in post-pandemic period on subject′s case-sheets who had been quarantined at IG International Airport′s quarantine center at Delhi. Materials and Methods: Clinical scoring of each suspected case was done by studying their case record sheet and compared with the results of RT-PCR. RT-PCR was used to confirm the diagnosis (Gold Standard. Statistical Analysis: We calculated sensitivity, specificity, positive and negative predictive values of the clinical feature-based scoring system (the proposed new screening tool at different cut-off values. The most discriminant cut-off value was determined by plotting the ROC curve. Results: Of the 638 suspected cases, 127 (20% were confirmed to have H1N1 by RT-PCR examination. On the basis of ROC, the most discriminant clinical feature score for diagnosing Influenza A was found to be 7, which yielded sensitivity, specificity, positive, and negative predictive values of 86%, 88%, 64%, and 96%, respectively. Conclusion: The clinical features scoring system (CFSS can be used as a valid and cost-effective tool for screening swine flu (influenza A (H1N1 cases from large number of influenza-like illness suspects.

  16. Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies

    Science.gov (United States)

    Panzer, Stephanie; Mc Coy, Mark R.; Hitzl, Wolfgang; Piombino-Mascali, Dario; Jankauskas, Rimantas; Zink, Albert R.; Augat, Peter

    2015-01-01

    The purpose of this study was to develop a checklist for standardized assessment of soft tissue preservation in human mummies based on whole-body computed tomography examinations, and to add a scoring system to facilitate quantitative comparison of mummies. Computed tomography examinations of 23 mummies from the Capuchin Catacombs of Palermo, Sicily (17 adults, 6 children; 17 anthropogenically and 6 naturally mummified) and 7 mummies from the crypt of the Dominican Church of the Holy Spirit of Vilnius, Lithuania (5 adults, 2 children; all naturally mummified) were used to develop the checklist following previously published guidelines. The scoring system was developed by assigning equal scores for checkpoints with equivalent quality. The checklist was evaluated by intra- and inter-observer reliability. The finalized checklist was applied to compare the groups of anthropogenically and naturally mummified bodies. The finalized checklist contains 97 checkpoints and was divided into two main categories, “A. Soft Tissues of Head and Musculoskeletal System” and “B. Organs and Organ Systems”, each including various subcategories. The complete checklist had an intra-observer reliability of 98% and an inter-observer reliability of 93%. Statistical comparison revealed significantly higher values in anthropogenically compared to naturally mummified bodies for the total score and for three subcategories. In conclusion, the developed checklist allows for a standardized assessment and documentation of soft tissue preservation in whole-body computed tomography examinations of human mummies. The scoring system facilitates a quantitative comparison of the soft tissue preservation status between single mummies or mummy collections. PMID:26244862

  17. Myeloproliferative neoplasm (MPN) symptom assessment form total symptom score: Prospective international assessment of an abbreviated symptom burden scoring system among patients with MPNs

    NARCIS (Netherlands)

    R.M. Emanuel (Robyn); A.C. Dueck (Amylou); H.L. Geyer (Holly); J.J. Kiladjian; S. Slot (Stefanie); S. Zweegman (Sonja); P.A.W. te Boekhorst (Peter); S. Commandeur (Suzan); H. Schouten (Harry); F. Sackmann (Federico); A.K. Fuentes (Ana Kerguelen); D. Hernández-Maraver (Dolores); C. Pahl (Clemens); M. Griesshammer (Martin); F. Stegelmann (Frank); K. Doehner (Konstanze); T. Lehmann (Thomas); K. Bonatz (Karin); A. Reiter (Alfred); F. Boyer (Francoise); J. Etienne (Jerome); J.-C. Ianotto (Jean-Christophe); D. Ranta (Dana); L. Roy (Lydia); J.-Y. Cahn (Jean-Yves); C.N. Harrison (Claire); D. Radia (Deepti); P. Muxi (Pablo); N. Maldonado (Norman); C. Besses (Carlos); F. Cervantes (Francisco); P.L. Johansson (Peter); T. Barbui (Tiziano); G. Barosi (Giovanni); A.M. Vannucchi (Alessandro); F. Passamonti (Francesco); B. Andreasson (Bjorn); M.L. Ferarri (Maria); A. Rambaldi (Alessandro); J. Samuelsson (Jan); G. Birgegard (Gunnar); A. Tefferi (Ayalew); A.A. Mesa

    2012-01-01

    textabstractPurpose: Myeloproliferative neoplasm (MPN) symptoms are troublesome to patients, and alleviation of this burden represents a paramount treatment objective in the development of MPN-directed therapies. We aimed to assess the utility of an abbreviated symptom score for the most pertinent a

  18. Validation of a New Pediatric Joint Scoring System From the International Hemophilia Prophylaxis Study Group: Validity of the Hemophilia Joint Health Score

    NARCIS (Netherlands)

    Feldman , M. Brian; Funk, M. Sharon; Bergstrom, Britt-Marie; Zourikian, Nichan; Hillard, Pamela; Net, van der Janjaap; Engelbert , H.H. Raoul; Petrini, Pia; Berg, Marijke van den H.; Manco-Johnson, J. Marilyn; Rivard, E. Georges; Abad, Audrey; Blanchette , S. Victor

    2011-01-01

    Objective. Repeated hemarthrosis in hemophilia causes arthropathy with pain and dysfunction. The Hemophilia Joint Health Score (HJHS) was developed to be more sensitive for detecting arthropathy than the World Federation of Hemophilia (WFH) physical examination scale, especially for children and tho

  19. Myeloproliferative neoplasm (MPN) symptom assessment form total symptom score: Prospective international assessment of an abbreviated symptom burden scoring system among patients with MPNs

    NARCIS (Netherlands)

    R.M. Emanuel (Robyn); A.C. Dueck (Amylou); H.L. Geyer (Holly); J.J. Kiladjian; S. Slot (Stefanie); S. Zweegman (Sonja); P.A.W. te Boekhorst (Peter); S. Commandeur (Suzan); H. Schouten (Harry); F. Sackmann (Federico); A.K. Fuentes (Ana Kerguelen); D. Hernández-Maraver (Dolores); C. Pahl (Clemens); M. Griesshammer (Martin); F. Stegelmann (Frank); K. Doehner (Konstanze); T. Lehmann (Thomas); K. Bonatz (Karin); A. Reiter (Alfred); F. Boyer (Francoise); J. Etienne (Jerome); J.-C. Ianotto (Jean-Christophe); D. Ranta (Dana); L. Roy (Lydia); J.-Y. Cahn (Jean-Yves); C.N. Harrison (Claire); D. Radia (Deepti); P. Muxi (Pablo); N. Maldonado (Norman); C. Besses (Carlos); F. Cervantes (Francisco); P.L. Johansson (Peter); T. Barbui (Tiziano); G. Barosi (Giovanni); A.M. Vannucchi (Alessandro); F. Passamonti (Francesco); B. Andreasson (Bjorn); M.L. Ferarri (Maria); A. Rambaldi (Alessandro); J. Samuelsson (Jan); G. Birgegard (Gunnar); A. Tefferi (Ay