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Sample records for semdjl-leptodactylic type radiological

  1. A distinct form of spondyloepimetaphyseal dysplasia with joint laxity (SEMDJL)-leptodactylic type: radiological characteristics in seven new patients

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Ok-Hwa [Ajou University Hospital, Department of Radiology, Suwon (Korea); Cho, Tae-Joon [Seoul National University Children' s Hospital, Department of Orthopaedic Surgery, Seoul (Korea); Song, Hae-Ryong [Korea University Guro Hospital, Department of Othopaedic Surgery, Seoul (Korea); Chung, Chin Youb [Seoul National University Bundang Hospital, Department of Orthopaedic Surgery, Gyeonggi (Korea); Miyagawa, Shin-Ichiro [National Hospital Organization Kure Medical center, Department of Pediatrics, Hiroshima (Japan); Nishimura, Gen [Kiyose Children' s Hospital, Department of Radiology, Tokyo (Japan); Superti-Furga, Andrea [University of Freiburg, Departement of Pediatrics, Freiburg (Germany); Unger, Sheila [Institute of Human Genetics, University of Freiburg, Freiburg (Germany)

    2009-08-15

    This study presents seven cases of a rare but distinctive form of spondyloepimetaphyseal dysplasia with joint laxity-leptodactylic or Hall type to emphasize the characteristic clinical and radiological findings. A multiinstitutional retrospective review was performed on seven patients. The patient population consisted of one family with an affected mother and two siblings and four unrelated patients; there were one adult, aged 40 years, and six children, ranging in age from 3 to 12 years. The gender ratio of females to males was 5 to 2. We reviewed the clinical data and skeletal surveys and focused on radiographs of the pelvis, knees, hands, and spine. The outstanding clinical features were short stature, midface hypoplasia, and multiple dislocations and/or ligamentous laxity of the large joints, particularly at the knees with a genu valgum or varum deformity. Of seven patients, six patients showed normal intellect but one patient had mild mental retardation. The main radiological features included small, irregular epiphyses, metaphyseal irregularity with vertical striations that was a constant finding at the knees, constricted femoral necks, delayed ossification of the carpal bones, and slender metacarpals. Progressive thoracolumbar scoliosis was evident with aging; however, the vertebral bodies appeared normal in height or mild platyspondyly was noted. In view of the orthopedic management of multiple joint dislocations and ligamentous laxity of the large joints, awareness of this disease entity and diagnostic precision solely based on radiological findings is of importance, particularly as the disorder is currently more common than initially reported. (orig.)

  2. Radiological investigation of neurofibromatosis type 2

    International Nuclear Information System (INIS)

    AAkeson, P.; Holtaas, S.

    1994-01-01

    The radiological findings in six patients fulfilling the criteria of neurofibromatosis type 2 (NF2) were reviewed. Subtle cutaneous lesions were found in three. All patients had bilateral acoustic schwannomas; two had small acoustic tumours and normal hearing. In these patients the presenting symptoms were caused by multiple intracranial meningiomas and spinal neurofibromas, respectively, whereas the remaining four patients presented with hearing loss. Two patients had other cranial nerve tumours. Three patients had rapidly growing multiple intracranial meningiomas; two had multiple spinal neurofibromas and one a spinal meningioma. NF2 is a rare disease with few cutaneous but frequent, typical radiological findings in the central nervous system. The presenting symptom is most commonly hearing loss due to acoustic schwannomas, although symptoms emanating from other intracranial or tumours are not uncommon. The discovery of multiple meningiomas or multiple spinal neurofibromas without cutaneous lesions should initiate a search for acoustic schwannomas even when the patient has normal hearing. (orig.)

  3. Neurofibromatosis type 1: clinical and radiological aspects

    International Nuclear Information System (INIS)

    Muniz, Marcos Pontes; Souza, Antonio Soares; Bertelli, Erika Cristina Pavarino; Bertollo, Eny Maria Goloni

    2006-01-01

    Neurofibromatosis type 1 is a genetic disease with an incidence of approximately 1 in 3,000 people, characterized mainly by systemic and progressive involvement, manifesting by physical deformity and compromising of neurological functions. The diagnosis of the neurofibromatosis type 1 must be performed the earliest possible through clinical exams and familiar history. The use of imaging diagnosis as radiography, computed tomography, and magnetic resonance imaging is valuable for diagnosis, treatment, follow-up of patients and control of lesions, preventing complications. In this study we describe the clinical and radiological aspects of the neurofibromatosis type 1, considering clinical features, genetics, bone alterations in chest, vertebral column, upper and lower limbs, and craniofacial abnormalities. (author)

  4. Radiologic reports : attitudes, preferred type, and opinion of referring physicians

    International Nuclear Information System (INIS)

    Kim, Won Young; Hwang, Seong Su; Ahn, Myeong Im and others

    2001-01-01

    To determine referring physicians' general attitudes, preferred reporting types, and opinions on radiologic reports. A survey questionnaire was distributed to the 315 staff and residents of four university hospitals with 400 to 800 beds, and a total of 228 physicians responded. The questionnaire aimed to determine of the general attitude of referring physicians to radiologic reports, the type of report they preferred, and other opinions and suggestions. The responses elicited, as well as discrepancies among residents, staff, internist, and surgeons, were analyzed. Most referring physicians replied that they read an entire report regardless of its length, and the second majority read the conclusion first and then the remainder of the report only if clarification was required. With regard to report length, physicians answered that reports describing the findings of conventional radiography were often too short, while those dealing with MRI were verbose. The majority experienced occasional confusion when reading a report, the major cause being grammatical errors and incomprehensible sentence structure. When confused, most physicians consulted the radiologist ; staff showed a greater inclination than residents to pursue this option. Most physicians preferred brief phrases or telegraphic-style sentences to a style which stressed completeness and detail, a preference which was statistically higher among residents than staff. Whereas physicians favored a brief radiologic report in cases of normal radiologic findings, conventional radiologic studies or no clinical findings, they wished to see a more detailed report in cases of abnormal radiologic findings, specific radiologic studies (special radiographs, US, CT, or MRI), or positive clinical findings. This need for more detail was expressed more frequently by internists than by surgeons. If implemented, the results of this study can be expected to enhance the quality and comprehensibility of radiologic reports, and may

  5. Radiology

    International Nuclear Information System (INIS)

    Edholm, P.R.

    1990-01-01

    This is a report describing diagnostic techniques used in radiology. It describes the equipment necessary for, and the operation of a radiological department. Also is described the standard methods used in radiodiagnosis. (K.A.E.)

  6. Radiology

    International Nuclear Information System (INIS)

    Sykora, A.

    2006-01-01

    In this text-book basic knowledge about radiology, biomedical diagnostic methods (radiography, computer tomography), nuclear medicine and safety and radiation protection of personnel on the radiodiagnostic place of work are presented

  7. Radiological consequences on the containment design types for Korean ALWR

    International Nuclear Information System (INIS)

    Cho, S. H.; Lee, J. S.; Lim, W. S.; Lee, Y. J.

    2001-01-01

    The design goal of Korean ALWR Phase II Design is to improve safety and to reduce costs in comparison with existing plants. The design goal of Korean ALWR (III) is to optimize Korean ALWR (II) in regards to safety and cost. Therefore KEPRI(Korea Electric Power Research Institute) and KOPEC (Korea Power Engineering Company) evaluated and selected various items to optimize Korean ALWR (II). One of these items is to change the containment design from the double containment into the single containment with a reduced design basis leak rate of containment. The importance of containment, as a multiple-barrier to fission product release, is demonstrated through the accidents in TMI and Chernobyl. The containment is the final barrier to provent fission products from release to environment. In this paper, the radiological consequences of the containment design types were estimated

  8. Most Common Publication Types in Radiology Journals:: What is the Level of Evidence?

    Science.gov (United States)

    Rosenkrantz, Andrew B; Pinnamaneni, Niveditha; Babb, James S; Doshi, Ankur M

    2016-05-01

    This study aimed to assess the most common publication types in radiology journals, as well as temporal trends and association with citation frequency. PubMed was searched to extract all published articles having the following "Publication Type" indices: "validation studies," "meta-analysis," "clinical trial," "comparative study," "evaluation study," "guideline," "multicenter study," "randomized study," "review," "editorial," "case report," and "technical report." The percentage of articles within each category published within clinical radiology journals was computed. Normalized percentages for each category were also computed on an annual basis. Citation counts within a 2-year window following publication were obtained using Web of Science. Overall trends were assessed. Publication types with the highest fraction in radiology journals were technical reports, evaluation studies, and case reports (4.8% to 5.8%). Publication types with the lowest fraction in radiology journals were randomized trials, multicenter studies, and meta-analyses (0.8% to 1.5%). Case reports showed a significant decrease since 1999, with accelerating decline since 2007 (P = 0.002). Publication types with highest citation counts were meta-analyses, guidelines, and multicenter studies (8.1 ± 10.7 to 12.9 ± 5.1). Publication types with lowest citation counts were case reports, editorials, and technical reports (1.4 ± 2.4 to 2.9 ± 4.3). The representation in radiology journals and citation frequency of the publication types showed weak inverse correlation (r = -0.372). Radiology journals have historically had relatively greater representation of less frequently cited publication types. Various strategies, including methodological training, multidisciplinary collaboration, national support networks, as well as encouragement of higher level of evidence by funding agencies and radiology journals themselves, are warranted to improve the impact of radiological research

  9. Radiologic investigation of apert syndrome (acrocephalosyndactyly type 1) -a case report-

    International Nuclear Information System (INIS)

    Lee, Yeon Hee; Cho, Whi Youl; Kim, Myung Soon; Hong, In Soo; Sung, Ki Joon; Yang, Jae Seung

    1991-01-01

    Apert syndrome (Acrocephalosyndactyly type 1) is a rare congenital anomaly characterized by craniosynosis and symmetric-syndactyly of both extremities. Radiological examination of the skull shows hydrocephalus due to aqueductal stenosis. In the facial bones, the hypoplastic maxilla and relatively prominent mandible are observed associated with other anomalies such as cleft palate. Radiologic examination of both hands and feet show bony or subcutaneous syndactylism and typical mitten hands and webbed toes

  10. Intramuscular capillary-type hemangioma: radiologic-pathologic correlation

    Energy Technology Data Exchange (ETDEWEB)

    Yilmaz, Sabri; Alomari, Ahmad I.; Chaudry, Gulraiz [Boston Children' s Hospital and Harvard Medical School, Vascular Anomalies Center, Boston, MA (United States); Boston Children' s Hospital and Harvard Medical School, Division of Vascular and Interventional Radiology, Boston, MA (United States); Kozakewich, Harry P. [Boston Children' s Hospital and Harvard Medical School, Vascular Anomalies Center, Boston, MA (United States); Boston Children' s Hospital and Harvard Medical School, Department of Pathology, Boston, MA (United States); Fishman, Steven J. [Boston Children' s Hospital and Harvard Medical School, Vascular Anomalies Center, Boston, MA (United States); Boston Children' s Hospital and Harvard Medical School, Department of Surgery, Boston, MA (United States); Mulliken, John B. [Boston Children' s Hospital and Harvard Medical School, Vascular Anomalies Center, Boston, MA (United States); Boston Children' s Hospital and Harvard Medical School, Department of Plastic and Oral Surgery, Boston, MA (United States)

    2014-05-15

    Infantile hemangiomas demonstrate a pattern of proliferative growth in infancy followed by a slow phase of involution. In contrast a rare type of vascular tumor, intramuscular capillary-type hemangioma, usually presents beyond the period of infancy with nonspecific symptoms and no evidence of involution. The purpose of this study was to characterize the clinical, imaging, histopathological characteristics and management of intramuscular capillary-type hemangioma. We performed a retrospective review of a 20-year period to identify children diagnosed with intramuscular capillary-type hemangioma. Patient demographics, imaging and histopathological findings were recorded. We included 18 children (10 boys, 8 girls) with histologically proven intramuscular capillary-type hemangioma - and adequate imaging. The mean age at presentation was 8.1 years (range 1 day to 19 years). Twelve lesions involved muscles of the extremities, 4 were located in the trunk and 2 were in the head and neck. MRI had been performed in all children and demonstrated a soft-tissue mass with flow voids, consistent with fast flow. The lesion was well-circumscribed in 16 children and intralesional fat was seen in 14. Doppler US demonstrated a heterogeneous lesion, predominantly isoechoic to surrounding muscle, with enlarged arterial feeders. Enlarged feeding arteries, inhomogeneous blush and lack of arteriovenous shunting were noted on angiography (n = 5). The most common histopathological findings were lobules of capillaries with plump endothelium and at least some adipose tissue. The lesions were excised in six children. Two children were lost to follow-up. In the remaining 10, follow-up MRI studies ranging from 3 months to 10 years showed that the lesion enlarged in proportion to the child (n = 7), demonstrated slow growth (n = 2) or remained stable (n = 1). There was no change in imaging characteristics on follow-up. Intramuscular capillary-type hemangioma is a rare benign vascular tumor of

  11. Radiological responses of different types of Egyptian Mediterranean coastal sediments

    Energy Technology Data Exchange (ETDEWEB)

    El-Gamal, A., E-mail: ayman_elgamal@yahoo.co [Department of Oceanography, Coastal Research Institute, National Water Research Center, 15 Elpharaana St., Elshallalat, Postal code 21514, Alexandria (Egypt); Rashad, M. [Land and Water Technologies Department, Arid Land Cultivation and Development Research Institute, Mubarak City for Scientific Research, Burg El-Arab, Alexandria (Egypt); Ghatass, Z. [Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria (Egypt)

    2010-08-15

    The aim of this study was to identify gamma self-absorption correction factors for different types of Egyptian Mediterranean coastal sediments. Self-absorption corrections based on direct transmission through different thicknesses of the most dominant sediment species have been tested against point sources with gamma-ray energies of {sup 241}Am, {sup 137}Cs and {sup 60}Co with 2% uncertainties. Black sand samples from the Rashid branch of the Nile River quantitatively absorbed the low energy of {sup 241}Am through a thickness of 5 cm. In decreasing order of gamma energy self-absorption of {sup 241}Am, the samples under investigation ranked black sand, Matrouh sand, Sidi Gaber sand, shells, Salloum sand, and clay. Empirical self-absorption correction formulas were also deduced. Chemical analyses such as pH, CaCO{sub 3}, total dissolved solids, Ca{sup 2+}, Mg{sup 2+}, CO{sub 3}{sup 2-}, HCO{sub 3}{sup -} and total Fe{sup 2+} have been carried out for the sediments. The relationships between self absorption corrections and the other chemical parameters of the sediments were also examined.

  12. Assessment of the radiological risks of road transport accidents involving type A package shipments

    International Nuclear Information System (INIS)

    Lange, F.; Fett, H.J.; Schwarz, G.; Raffestin, D.; Schneider, T.; Gelder, R.; Hughes, J.S.; Shaw, K.B.; Hedberg, B.; Simenstad, P.; Svahn, B.; Hienen, J.F.A.; Jansma, R.

    1998-01-01

    This paper is an account of work performed within a multi-lateral research project on the radiological risks associated with the transportation of Type A packaged radioactive material. The research project has been performed on behalf of the European Commission and various national agencies of the participating countries and involved organizations and institutes of five EU Member States, France, Germany, The Netherlands, Sweden, and the UK. The main objectives of the research project were the assessment and appraisal of the potential radiological risks of road transport accidents involving Type A package shipments in participating EU Member States. Data were collected and include harmonized sets information related to the type, quantity and characteristics of Type A package shipments by road. Such databases were basically non-existent until recently. The results are expected to be valuable to both national agencies and international organizations, with responsibilities for the safe transport of radioactive materials by providing some insight in the carriage of radioactive materials by road making up a major fraction of radioactive material transports. Similarly, a wide body of information has been collected and compiled on road transport accidents in terms of the frequency of occurrence and the severity of accidental impact loads potentially experienced by a Type A package.In addition, the results will facilitate judgement of the adequacy of the IAEA Transport Regulations as far as Type A packages are concerned. (O.M.)

  13. Neurofibromatosis type 1: clinical and radiological aspects; Neurofibromatose tipo 1: aspectos clinicos e radiologicos

    Energy Technology Data Exchange (ETDEWEB)

    Muniz, Marcos Pontes; Souza, Antonio Soares [Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), SP (Brazil). Dept. de Imagem]. E-mail: depimagem@famerp.br; Ferraz Filho, Jose Roberto Lopes [Faculdade de Medicina de Sao Jose do Rio Preto (Famerp), SP (Brazil). Hospital de Base. Unidade de Ressonancia Magnetica; Zanusso, Silvia Helena [Centro de Pesquisa e Atendimento em Nerofibromatose (CEPAN), Sao Jose do Rio Preto, SP (Brazil); Bertelli, Erika Cristina Pavarino [Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), SP (Brazil). Unidade de Pesquisa em Genetica e Biologia Molecular; Bertollo, Eny Maria Goloni [Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), SP (Brazil). Disciplina de Genetica

    2006-04-15

    Neurofibromatosis type 1 is a genetic disease with an incidence of approximately 1 in 3,000 people, characterized mainly by systemic and progressive involvement, manifesting by physical deformity and compromising of neurological functions. The diagnosis of the neurofibromatosis type 1 must be performed the earliest possible through clinical exams and familiar history. The use of imaging diagnosis as radiography, computed tomography, and magnetic resonance imaging is valuable for diagnosis, treatment, follow-up of patients and control of lesions, preventing complications. In this study we describe the clinical and radiological aspects of the neurofibromatosis type 1, considering clinical features, genetics, bone alterations in chest, vertebral column, upper and lower limbs, and craniofacial abnormalities. (author)

  14. Assessment of the radiological risks of road transport accidents involving Type A packages

    International Nuclear Information System (INIS)

    Lange, F.; Fett, H.J.; Schwarz, G.; Raffestin, D.; Schneider, T.; Gelder, R.; S. Hughes, J.; B. Shaw, K.; Hedberg, B.; Simenstad, P.; Svahn, B.; Heinen, J.F.A. van; Jansma, R.

    2001-01-01

    An assessment and evaluation of the potential radiological risks of transport accidents involving Type A package shipments by road have been performed by five EU Member States, France, Germany, Sweden, The Netherlands, and the UK. The analysis involved collection and analysis of information on a national basis related to the type, volume, and characteristics of Type A package consignments, the associated radioactive traffic, and the expected frequency and consequences of potential vehicular road transport accidents. It was found that the majority of Type A packaged radioactive material shipments by road is related to applications of non-special form radioactive material, i.e. radiopharmaceuticals, radiochemicals etc., in medicine, research, and industry and special form material contained in radiography and other radiation sources, e.g. gauging equipment. The annual volumes of Type A package shipments of radiopharmaceuticals and radiochemicals by road differ considerably between the participating EU Member States from about 12,000 Type A packages in Sweden to about 240,000 in the Netherlands. The broad range reflects to a large extent the supply of radioactive material for the national populations and the production and distribution operations prevailing in the participating EU Member States (some are producer countries, others are not!). Very few standard package designs weighing from about 1-25 kg are predominant in Type A package shipments in all participating countries. Type A packages contain typically a range of radioactivity from a few mega becquerels to a few tens of giga becquerels, the average package activity contents is in terms of fractions of A 2 about 0.01, i.e. about one hundredth of a Type A package contents limits. Based on a probabilistic risk assessment method it has been concluded that the expected frequencies of occurrence of vehicular road transport accidents with the potential to result in an environmental release - including radiologically

  15. Spondyloepimetaphyseal dysplasia, short limb-abnormal calcifications type: progressive radiological findings from fetal age to adolescence.

    Science.gov (United States)

    Rozovsky, Katya; Sosna, Jacob; Le Merrer, Martine; Simanovsky, Natalia; Koplewitz, Benjamin Z; Bar-Ziv, Jacob; Cormier-Daire, Valerie; Raas-Rothschild, Annick

    2011-10-01

    Spondyloepimetaphyseal dysplasia, short limb-abnormal calcifications type (SEMD, SL-AC) is a rare autosomal recessive condition with a grave prognosis. We aimed to describe the progression of symptoms from fetal age to adolescence in SMED, SL-AC patients. We retrospectively evaluated radiological findings on plain films, CT and MRI for eight children with genetically proven SEMD (male:female ratio 4:4, ages 30-week fetus to 18 years) and summarized findings from case reports and case series in the literature. Early and persistent radiological signs of SEMD were platyspondyly, chest narrowing, short ribs, and broad and short bones in the extremities and pelvis. In five children, we observed an unusually massive C2 vertebral body with narrowing of the spinal canal. Disease progression was characterized by anterior dislocation of C1, kyphoscoliosis, bowing of the limbs, metaphyseal and epiphyseal changes and abnormal calcifications. Earliest appearance of abnormal calcifications was 1.5 years; four children had no abnormal calcifications at diagnosis. There were persistent large open fontanelles in all children with skull radiographs, including a 17-year-old boy. Disease severity and progression were variable. Complications included cord compression and restrictive lung changes. Disease severity and progression vary. Absence of abnormal calcifications does not preclude the diagnosis. An unusual, massive C2 vertebral body may contribute to spinal cord compression. Persistent open fontanelles should be added to the clinical characteristics of SEMD, SL-AC.

  16. A practical methodology of radiological protection for the reduction of hot particles in BWR type reactors

    International Nuclear Information System (INIS)

    Alvarez G, G.

    1991-01-01

    The purpose of this work, in general form, is to describe a practical method for reduction of hot particles generated as consequence of the operational activities of BWR nuclear reactors. This methodology provides a description of the localizations and/or probable activities of finding particles highly radioactive denominated hot particles. For this purpose it was developed a strategy based on the decontamination lineaments, as well as the manipulation, gathering, registration, contention, documentation, control and final disposition of the hot particles. In addition, some recommendations are reiterated and alternative, in order to gathering the hot particles in a dynamic way given to the activities of the personal occupationally exposed in highly radioactive areas. The structure of the methodology of hot particles is supported in the radiological controls based on the Code of Federal Regulation 10 CFR 20 as well as the applicable regulatory documents. It provides an idea based on administrative controls of radiological protection, in order to suggesting the responsibilities and necessary directing for the control of the hot particles required in nuclear plants of the BWR type. (author)

  17. Bent bone dysplasia (BBD)-FGFR2 type: the radiologic manifestations in early gestation

    Energy Technology Data Exchange (ETDEWEB)

    Handa, Atsuhiko; Okajima, Yuka; Kurihara, Yasuyuki [St. Luke' s International Hospital, Department of Radiology, Tokyo (Japan); Izumi, Noriko; Yamanaka, Michiko [St. Luke' s International Hospital, Department of Integrated Women' s Health, Tokyo (Japan)

    2016-02-15

    Bent bone dysplasia-fibroblast growth factor receptor 2 type (BBD-FGFR2) is a recently identified skeletal dysplasia caused by specific FGFR2 mutations, characterized by craniosynostosis and prenatal bowing of the long bones. Only a few cases have been published. We report an affected fetus terminated at 21 weeks of gestation. The clinical and radiologic manifestations mostly recapitulate previous descriptions; however we suggest additional hallmarks of this disorder in early gestation. These hallmarks include distinctive short, thick clavicles and wavy ribs, as well as vertebral bodies that showed striking anteroposterior shortening. Femoral fractures were also present in our case. Although craniosynostosis is a hallmark of the disease, clinicians should be aware that craniosynostosis might not be readily apparent on plain films early in gestation. (orig.)

  18. Examination of types of exposure and management methods for nurses in interventional radiology

    International Nuclear Information System (INIS)

    Mori, Hiroshige; Fujii, Tomonori; Koshida, Kichiro; Ichikawa, Katsuhiro

    2007-01-01

    Although a large number of studies have been done on exposure to operators and doctors during interventional radiology (IVR), there have been very few reports on nurses. This study was carried out to clarify the situation regarding exposure for nurses, and provides examples of how to estimate and manage. We measured space dose-rate distributions with an ionization survey meter, and personal exposure dose by a small fluorescent grass dosimeter (Dose Ace). The experimental results disclosed that there tended to be two types of exposure depending on the task performed. Head and neck (collar level) were associated with the highest exposure dose, which was observed in nurses assisting operators. Alternatively, knees showed the highest exposure dose, which was observed in nurses observing and assisting the patient. When estimation of skin equivalent exposure at the knees is needed, it can be calculated by using the value measured at the collar level. Furthermore, in estimating exposure dose, the directional and energy characteristics of personal dosimeters should be considered adequate. For radiation management, a circular protective sheet can be placed around the patient's lower area and a protective screen near the patient's head, and basic and practical education can be given. We concluded that these are highly useful for the personal monitoring of nurses engaged in IVR. (author)

  19. Radiological impact of plutonium recycle in the fuel cycle of LWR type reactors: professional exposure during mormal operation

    International Nuclear Information System (INIS)

    White, I.F.; Kelly, G.N.

    1983-01-01

    The radiological impact of the fuel cycle of light water type reactors using enriched uranium may be changed by plutonium recycle. The impact on human population and on the persons professionally exposed may be different according to the different steps of the fuel cycle. This report analyses the differential radiological impact on the different types of personnel involed in the fuel cycle. Each step of the fuel cycle is separately studied (fuel fabrication, reactor operation, fuel reprocessing), as also the transport of the radioactive materials between the different steps. For the whole fuel cycle, one estimates that, with regard to the fuel cycle using enriched uranium, the plutonium recycle involves a small increase of the professional exposure

  20. Investigation of whether various types of radioactive waste are equivalent in terms of the radiological impact associated with their disposal

    International Nuclear Information System (INIS)

    Fearn, H.S.; Smith, G.M.; Davis, J.P.; Hill, M.D.

    1989-01-01

    The aim of this study is to investigate the possibility that various types of waste are equivalent in terms of the risks associated with their disposal in so far as they are viewed by different sections of society. If such a framework can be established it could be used as an aid to decisions as to whether central disposal facilities, to accept waste from several countries, should be constructed. Details are presented of assumed radionuclide inventories for a representative range of radioactive wastes, calculations and results of the radiological impacts of their disposal, and illustrative methods for weighting the various components of impact which when summed provide an overall measure of impact. Five sets of weighting factors have been devised which are intended to represent the views of a) the radiological protection community, b) those with a pro-nuclear industry view, c) those who oppose nuclear power on safety grounds, d) the inhabitants of the country receiving wastes for disposal, and e) the inhabitants of the country dispatching wastes. On the basis of the calculated weighted radiological impacts it is demonstrated how conclusions can be drawn about general views on the disposal of each waste, about likely attitudes to the export of wastes from one country for disposal in another, and attitudes to exchanging wastes between countries. The study is preliminary and of limited scope. However, the results show that the general methodology is practicable and could be applied in a wider ranging investigation

  1. Volar Plate Fixation in Patients Older Than 70 Years with AO Type C Distal Radial Fractures: Clinical and Radiologic Outcomes.

    Science.gov (United States)

    Piuzzi, Nicolas S; Zaidenberg, Ezequiel E; Duarte, Matias Pereira; Boretto, Jorge G; Donndorff, Agustin; Gallucci, Gerardo; De Carli, Pablo

    2017-08-01

    Introduction  Treatment of unstable distal radial fractures (DRFs) in elderly patients is controversial, and considering the increasing life expectancy, their appropriate treatment is of growing importance. Our aim was to analyze the clinical and radiologic outcomes in the elderly patients with AO type C DRF treated with volar locking plate (VLP). Materials and Methods  Between 2007 and 2011, 572 DRFs were operated on in our hospital with open reduction and internal fixation with VLP. Of these, only 64 patients (66 DRFs) met the selection criteria (AO type C DRF, age > 70 years, minimum 12-month follow-up). Mean follow-up was 28 months. Outcome assessment included range of motion, grip strength, VAS pain, Mayo Clinic Score, and DASH score. Analysis of pre- and postoperative radiographs was performed. Complications were recorded. Statistical analysis was performed comparing the results with the contralateral side. Results  Mean postoperative range of motion of the injured wrist compared with the control contralateral side was 86% for flexion ( p  AO type C) with VLP in the elderly patients achieved greater than 90% of the wrist range of motion and grip strength with no residual pain in greater than 90% of the patients. Level of Evidence  Therapeutic IV, case series.

  2. Type II autosomal dominant osteopetrosis (Albers-Schönberg disease): clinical and radiological manifestations in 42 patients.

    Science.gov (United States)

    Bénichou, O D; Laredo, J D; de Vernejoul, M C

    2000-01-01

    Type II autosomal dominant osteopetrosis (ADO II, Albers-Schonberg disease) is a genetic condition characterized by generalized osteosclerosis predominating in some skeletal sites such as the spine and pelvis. ADO II is rare, and most available clinical descriptions are based on small numbers of patients. We report the clinical and radiological manifestations in 42 ADO II patients. To our knowledge, this is the largest series reported so far. Our inclusion criterion was presence on radiographs of the spine of vertebral endplate thickening, producing the classic sandwich vertebra appearance. We found various patterns of sandwich vertebra, of which we provide a description to assist physicians in diagnosing ADO II. The classic bone-within-bone appearance was present in most but not all skeletal sites. The radiological penetrance of the disease was high (90%) and increased after 20 years of age. As many as 81% of our patients experienced clinical manifestations. Fractures were common (78% of patients) and healed slowly. Hip osteoarthritis developed in 27% of patients and required arthroplasty in 9 of the 16 affected hips. Nonmandibular osteomyelitis occurred in 4 cases (11%). Twenty-four percent of patients had thoracic or lumbar scoliosis. Orthopedic surgery was performed in 52.8% of patients, of whom half had at least three surgical procedures for internal fracture fixation, arthroplasty, limb deformity correction, or treatment of surgical complications. There was a high rate of surgical complications including nonunion, infection, prosthesis loosening, and intraoperative fractures. Nearly two-thirds of patients (64%) had stomatologic manifestations, including mandibular osteomyelitis in 4 patients (11%). Cranial nerve involvement responsible for hearing loss, bilateral optic atrophy, and/or facial palsy was present in 14 patients but was clearly attributable to ADO II in only 6 cases (16%). This large series sheds new light on several aspects of ADO II, most

  3. Assessment of the radiological risks of road transport accidents involving type A-packages

    International Nuclear Information System (INIS)

    Lange, F.; Fett, H.J.; Schwarz, G.; Raffestin, D.; Schneider, T.; Gelder, R.; Hughes, J.S.; Shaw, K.B.; Hedberg, B.; Simenstad, P.; Svahn, B.; Van Hienen, J.F.A.; Jansma, R.

    1998-10-01

    This document, prepared in the framework of a study for the European Commission, presents the evaluation of the risks of accidents associated to the road transport of type A-packages (primarily packages of radio-pharmaceutic or radiography products) for five countries of the European Union. The annual transport of type A-packages varies considerably from one country to another, some countries being producers of radio-pharmaceutic products, others not. These packages are also very different one from each another: the weight varies generally from 1 to 25 kg and the activity from some Mega-Becquerels to few tens of Giga-Becquerels, the average activity expressed in A 2 is 0,01. (A.L.B.)

  4. Characterization of radiological emergencies

    International Nuclear Information System (INIS)

    Chester, C.V.

    1986-01-01

    This paper identifies conditions that should be considered by the designers of mobile teleoperator equipment intended for service in radiological emergencies. We include a definition of radiological emergency and a taxonomy of emergencies. We will indicate the range of operating conditions that an equipment designer should consider and the type of operations that his machine might be expected to perform. 2 refs., 1 tab

  5. Radiological performance of hot water layer system in open pool type reactor

    Directory of Open Access Journals (Sweden)

    Amr Abdelhady

    2013-06-01

    Full Text Available The paper presents the calculated dose rate carried out by using MicroShield code to show the importance of hot water layer system (HWL in 22 MW open pool type reactor from the radiation protection safety point of view. The paper presents the dose rate profiles over the pool surface in normal and abnormal operations of HWL system. The results show that, in case of losing the hot water layer effect, the radiation dose rate profiles over the pool surface will increase from values lower than the worker permissible dose limits to values very higher than the permissible dose limits.

  6. Radiological performance of hot water layer system in open pool type reactor

    OpenAIRE

    Amr Abdelhady

    2013-01-01

    The paper presents the calculated dose rate carried out by using MicroShield code to show the importance of hot water layer system (HWL) in 22 MW open pool type reactor from the radiation protection safety point of view. The paper presents the dose rate profiles over the pool surface in normal and abnormal operations of HWL system. The results show that, in case of losing the hot water layer effect, the radiation dose rate profiles over the pool surface will increase from values lower than th...

  7. Sampling on radiological protection training in diagnostic radiology

    International Nuclear Information System (INIS)

    Gaona, E.

    2001-01-01

    Radiological security aspects were evaluated in radiology departments from Mexico City. The study was carried out in two stages, the first one evaluated 40 departments just before the implementation of the new Official Mexican Standards related to Radiological Security and Quality Control in Radiology; in the second stage 33 departments were evaluated 2 years after those standards were implanted, showing a favorable impact of the training programs for the type of answers obtained [es

  8. Radiology fundamentals

    CERN Document Server

    Singh, Harjit

    2011-01-01

    ""Radiology Fundamentals"" is a concise introduction to the dynamic field of radiology for medical students, non-radiology house staff, physician assistants, nurse practitioners, radiology assistants, and other allied health professionals. The goal of the book is to provide readers with general examples and brief discussions of basic radiographic principles and to serve as a curriculum guide, supplementing a radiology education and providing a solid foundation for further learning. Introductory chapters provide readers with the fundamental scientific concepts underlying the medical use of imag

  9. RSVP radiology

    International Nuclear Information System (INIS)

    Kirks, D.R.; Chaffee, D.J.

    1990-01-01

    This paper develops a relative scale of value for pediatric radiology (RSVPR). Neither the HCFA/ACA Relative Value Scale nor the Workload Measurement System developed by Health and Welfare Canada specifically addressed pediatric radiologic examinations. Technical and professional charges for examinations at Children's Hospital Medical Center were reviewed and compared with time and cost analysis. A scale was developed with chest radiography (PA and lateral views) assigned a value of 1. After review by pediatric radiologic technologists, radiologic administrators, pediatric radiologists, and chairs of departments of children's hospitals, this proposed scale was modified to reflect more accurately relative value components of pediatric radiologic and imaging examinations

  10. Radiology illustrated. Pediatric radiology

    Energy Technology Data Exchange (ETDEWEB)

    Kim, In-One (ed.) [Seoul National Univ. College of Medicine (Korea, Republic of). Dept. of Radiology

    2014-11-01

    Depicts characteristic imaging findings of common and uncommon diseases in the pediatric age group. Will serve as an ideal diagnostic reference in daily practice. Offers an excellent teaching aid, with numerous high-quality illustrations. This case-based atlas presents images depicting the findings typically observed when imaging a variety of common and uncommon diseases in the pediatric age group. The cases are organized according to anatomic region, covering disorders of the brain, spinal cord, head and neck, chest, cardiovascular system, gastrointestinal system, genitourinary system, and musculoskeletal system. Cases are presented in a form resembling teaching files, and the images are accompanied by concise informative text. The goal is to provide a diagnostic reference suitable for use in daily routine by both practicing radiologists and radiology residents or fellows. The atlas will also serve as a teaching aide and a study resource, and will offer pediatricians and surgeons guidance on the clinical applications of pediatric imaging.

  11. Radiology illustrated. Pediatric radiology

    International Nuclear Information System (INIS)

    Kim, In-One

    2014-01-01

    Depicts characteristic imaging findings of common and uncommon diseases in the pediatric age group. Will serve as an ideal diagnostic reference in daily practice. Offers an excellent teaching aid, with numerous high-quality illustrations. This case-based atlas presents images depicting the findings typically observed when imaging a variety of common and uncommon diseases in the pediatric age group. The cases are organized according to anatomic region, covering disorders of the brain, spinal cord, head and neck, chest, cardiovascular system, gastrointestinal system, genitourinary system, and musculoskeletal system. Cases are presented in a form resembling teaching files, and the images are accompanied by concise informative text. The goal is to provide a diagnostic reference suitable for use in daily routine by both practicing radiologists and radiology residents or fellows. The atlas will also serve as a teaching aide and a study resource, and will offer pediatricians and surgeons guidance on the clinical applications of pediatric imaging.

  12. Radiological Worker Training: Radiological Worker 2 study guides

    International Nuclear Information System (INIS)

    1992-10-01

    Upon completion of this training course, the participant will have the knowledge to work safely in areas controlled for radiological purposes using proper radiological practices. Radiological Worker H Training, for the worker whose job assignment involves entry into Radiological Buffer Areas and all types of Radiation Contamination and Airborne Radioactivity Areas. This course is designed to prepare the worker to work safely in and around radiological areas and present methods to use to ensure individual radiation exposure is maintained As Low As Reasonably Achievable

  13. Chronicle of pediatric radiology

    International Nuclear Information System (INIS)

    Benz-Bohm, Gabriele; Richter, Ernst

    2012-01-01

    The chronicle of pediatric radiology covers the following issues: Development of pediatric radiology in Germany (BRD, DDR, pediatric radiological accommodations); development of pediatric radiology in the Netherlands (chronology and pediatric radiological accommodations); development of pediatric radiology in Austria (chronology and pediatric radiological accommodations); development of pediatric radiology in Switzerland (chronology and pediatric radiological accommodations).

  14. Dental radiology

    International Nuclear Information System (INIS)

    Bhaskar, S.N.

    1982-01-01

    The book presents the radiological manifestations of the maxillodental region in a suitable manner for fast detection and correct diagnosing of diseases of the teeth, soft tissue, and jaws. Classification therefore is made according to the radiological manifestations of the diseases and not according to etiology. (orig./MG) [de

  15. Type II autosomal dominant osteopetrosis: radiological features in two families containing five members with asymptomatic and uncomplicated disease

    Energy Technology Data Exchange (ETDEWEB)

    Fotiadou, Anastasia; Kiriakou, Vera; Tsitouridis, Ioannis [Papageorgiou Hospital, Radiology Department, Thessaloniki (Greece); Arvaniti, Maria [Genimatas Hospital, Radiology Department, Thessaloniki (Greece)

    2009-10-15

    In this study we analysed the imaging patterns in two families containing five members with asymptomatic and uncomplicated autosomal dominant osteopetrosis (ADO II), and we report new and uncommon radiological manifestations. These findings might be useful in the context of reducing the incidence of fractures and other orthopaedic complications. Diffuse pelvic sclerosis on radiographs was observed incidentally in two patients. Both cases were asymptomatic, and the patients had never suffered a fracture. The suggestion of ADO II was raised. A detailed medical history, an imaging survey, and a haematological study were obtained so that other rare causes of osteosclerosis could be ruled out. No genetic study was conducted. All their first-degree relatives were also examined. Bony sclerosis was observed in five patients, and the radiological findings were analysed. A not previously reported thickening of the skull base without cranial nerve palsy or optic nerve atrophy was revealed in all patients. Scoliosis was present in three of them. This has been reported previously only once in ADO II. No lower limb deformity was detected. This study provided information on the pattern of radiological features in familial asymptomatic ADO II. These data on new and rare imaging findings will increase the diagnostic awareness of physicians and will guide a thorough investigation of the entire family. This might result in a consequent decrease in the incidence of fractures and other orthopaedic complications. (orig.)

  16. Type II autosomal dominant osteopetrosis: radiological features in two families containing five members with asymptomatic and uncomplicated disease

    International Nuclear Information System (INIS)

    Fotiadou, Anastasia; Kiriakou, Vera; Tsitouridis, Ioannis; Arvaniti, Maria

    2009-01-01

    In this study we analysed the imaging patterns in two families containing five members with asymptomatic and uncomplicated autosomal dominant osteopetrosis (ADO II), and we report new and uncommon radiological manifestations. These findings might be useful in the context of reducing the incidence of fractures and other orthopaedic complications. Diffuse pelvic sclerosis on radiographs was observed incidentally in two patients. Both cases were asymptomatic, and the patients had never suffered a fracture. The suggestion of ADO II was raised. A detailed medical history, an imaging survey, and a haematological study were obtained so that other rare causes of osteosclerosis could be ruled out. No genetic study was conducted. All their first-degree relatives were also examined. Bony sclerosis was observed in five patients, and the radiological findings were analysed. A not previously reported thickening of the skull base without cranial nerve palsy or optic nerve atrophy was revealed in all patients. Scoliosis was present in three of them. This has been reported previously only once in ADO II. No lower limb deformity was detected. This study provided information on the pattern of radiological features in familial asymptomatic ADO II. These data on new and rare imaging findings will increase the diagnostic awareness of physicians and will guide a thorough investigation of the entire family. This might result in a consequent decrease in the incidence of fractures and other orthopaedic complications. (orig.)

  17. Health surveillance of radiological work

    International Nuclear Information System (INIS)

    Pauw, H.; Vliet, J.V.D.; Zuidema, H.

    1988-01-01

    Shielding x-ray devices and issuing film badges to radiological workers in 1936 can be considered the start of radiological protection in the Philips enterprises in the Netherlands. Shielding and equipment were constantly improved based upon the dosimetry results of the filmbadges. The problem of radioactive waste led to the foundation of a central Philips committee for radiological protection in 1956, which in 1960 also issued an internal license system in order to regulate the proper precautions to be taken : workplace design and layout, technological provisions and working procedures. An evaluation of all radiological work in 1971 learnt that a stricter health surveillance program was needed to follow up the precautions issued by the license. On one hand a health surveillance program was established and on the other hand all types of radiological work were classified. In this way an obligatory and optimal health surveillance program was issued for each type of radiological work

  18. Radiological colpocephaly

    International Nuclear Information System (INIS)

    Landman, J.; Dulitzki, F.; Sirota, L.; Aloni, D.; Bar-Ziv, J.; Weitz, R.; Shuper, A.; Gadoth, N.

    1989-01-01

    The term colpocephaly, meaning disproportional enlargement of the occipital horns of the lateral ventricles, was considered in the past to be a distinct congenital malformation acquired in early intrauterine life. During the last few years several causes were reported in whom a variety of intrauterine and perinatal causes could be associated with this radiological picture. We report on 9 children with radiological colpocephaly in whom intrauterine and/or perinatal injury to the developing brain seemed to be the cause of colpocephaly. It is evident from our observations that 'radiological colpocephaly' is a non-specific finding caused frequently by CNS damage acquired during intrauterine and perinatal life. (author)

  19. Radiological optimization

    International Nuclear Information System (INIS)

    Zeevaert, T.

    1998-01-01

    Radiological optimization is one of the basic principles in each radiation-protection system and it is a basic requirement in the safety standards for radiation protection in the European Communities. The objectives of the research, performed in this field at the Belgian Nuclear Research Centre SCK-CEN, are: (1) to implement the ALARA principles in activities with radiological consequences; (2) to develop methodologies for optimization techniques in decision-aiding; (3) to optimize radiological assessment models by validation and intercomparison; (4) to improve methods to assess in real time the radiological hazards in the environment in case of an accident; (5) to develop methods and programmes to assist decision-makers during a nuclear emergency; (6) to support the policy of radioactive waste management authorities in the field of radiation protection; (7) to investigate existing software programmes in the domain of multi criteria analysis. The main achievements for 1997 are given

  20. Imaging and radiology

    Science.gov (United States)

    ... how well your body is responding to a treatment you are receiving for your disease or condition Screen for different illnesses, such as breast cancer, colon cancer, or heart disease The most common types of diagnostic radiology exams include: Computed tomography (CT), also known ...

  1. Anesthesia for interventional radiology

    International Nuclear Information System (INIS)

    van Sonnenberg, E.; Casola, G.; Varney, R.R.; D'Agostino, H.B.; Zornow, M.; Mazzie, W.

    1989-01-01

    We recognized that the complexity and surgical nature of many interventional radiology procedures dictate essential radiologic involvement into traditional anesthesiologic areas. They reviewed our experience with a variety of interventional procedures to document complications and problems related to anesthetic use (or misuse) and compile recommendations for rational monitoring and control for these procedures. In particular, the authors have studied complications of drug therapies and the treatment of these complications; use of complex anesthesia procedures (e.g., epidural anesthesia, succinylcholine blockage); reasons for choice of drugs (e.g., fentanyl vs meperidine vs morphine); and medico-legal aspects of radiologist performing traditional anesthesiology-type procedures

  2. Radiological protection in interventional radiology

    International Nuclear Information System (INIS)

    Padovani, R.

    2001-01-01

    Interventional radiology (IR) reduces the need for many traditional interventions, particularly surgery, so reducing the discomfort and risk for patients compared with traditional systems. IR procedures are frequently performed by non-radiologist physicians, often without the proper radiological equipment and sufficient knowledge of radiation protection. Levels of doses to patients and staff in IR vary enormously. A poor correlation exists between patient and staff dose, and large variations of dose are reported for the same procedure. The occurrence of deterministic effects in patients is another peculiar aspect of IR owing to the potentially high skin doses of some procedures. The paper reviews the use of IR and the radiological protection of patients and staff, and examines the need for new standards for IR equipment and the training of personnel. (author)

  3. Whither Radiology?

    African Journals Online (AJOL)

    15 Mei 1974 ... cess of those audible to animals. Sonar should not be confused with X-rays, which have biological effects due to the production of ionising radiation, whereas ultrasound is vibrational or mechanical energy of an ultrahigh frequency. Ultrasound has taken over from conventional radiology in quite a few ...

  4. Radiologic considerations

    International Nuclear Information System (INIS)

    Judge, L.O.

    1987-01-01

    An increasing variety of imaging modalities as well as refinements of interventional techniques have led to a resurgence of radiologic interest and participation in urolithiasis management. Judicious selection of the diagnostic examination, close monitoring during the procedure, consultation with urologic colleagues, and a careful regard for radiation safety guidelines define the role of the radiologist in renal stone disease

  5. Typing of MRI in medial meniscus degeneration in relation to radiological grade in medial compartmental osteoarthritis of the knee

    Energy Technology Data Exchange (ETDEWEB)

    Nagata, Nobuhito; Koshino, Tomihisa; Saito, Tomoyuki; Sakai, Naotaka; Takagi, Toshitaka; Takeuchi, Ryohei [Yokohama City Univ. (Japan). School of Medicine

    1998-10-01

    The advancement of degeneration of 50 medial menisci in patients with medial compartmental osteoarthritic knees (OA) were evaluated with magnetic resonance imaging (MRI). The average age of the patients was 66.6 years (range, 39 to 86). According to a radiographical grading system, 6 knees were classified as Grade 1, 24 as Grade 2, 16 as Grade 3, and 4 as Grade 4. The extent and the location of a high intensity region in MRI were observed in 3 parts of the meniscus, namely, the anterior, middle and posterior part. In Grade 1, no high intensity region was observed in 3 knees, and a high intensity region was observed only in the posterior part in 2 knees. A high intensity region was observed from the medial to the posterior part in 13 knees, and only in the posterior part in 10 knees of Grade 2; from the medial to the posterior part in 12 knees, and only in the posterior part in 3 knees of Grade 3, and from the anterior to the posterior part in 2 knees of Grade 4. The shape of the high intensity region in the medial meniscus was classified into 5 types, as follows: Type 1, there was no high intensity region; Type 2, the high intensity region was observed to be restricted within the meniscus; Type 3, the high intensity region resembled a horizontal tear; Type 4, the high intensity region was observed as all of the medial joint space without a marginal area; Type 5, the high intensity region was observed as all of the medial joint space. In Grade 1, 3 knees were classified as Type 1, and 2 knees as Type 2; in Grade 2, 7 knees as Type 2, and 13 knees as Type 3, and 4 knees into Type 4; in Grade 3, 6 knees as Type 3, and 7 knees as Type 4; and in Grade 4, 2 knees as Type 4, and 2 knees as Type 5. These findings might suggest that the degeneration of medial meniscus in the medial type of OA was accelerated by mechanical stress due to varus deformity. (author)

  6. Typing of MRI in medial meniscus degeneration in relation to radiological grade in medial compartmental osteoarthritis of the knee

    International Nuclear Information System (INIS)

    Nagata, Nobuhito; Koshino, Tomihisa; Saito, Tomoyuki; Sakai, Naotaka; Takagi, Toshitaka; Takeuchi, Ryohei

    1998-01-01

    The advancement of degeneration of 50 medial menisci in patients with medial compartmental osteoarthritic knees (OA) were evaluated with magnetic resonance imaging (MRI). The average age of the patients was 66.6 years (range, 39 to 86). According to a radiographical grading system, 6 knees were classified as Grade 1, 24 as Grade 2, 16 as Grade 3, and 4 as Grade 4. The extent and the location of a high intensity region in MRI were observed in 3 parts of the meniscus, namely, the anterior, middle and posterior part. In Grade 1, no high intensity region was observed in 3 knees, and a high intensity region was observed only in the posterior part in 2 knees. A high intensity region was observed from the medial to the posterior part in 13 knees, and only in the posterior part in 10 knees of Grade 2; from the medial to the posterior part in 12 knees, and only in the posterior part in 3 knees of Grade 3, and from the anterior to the posterior part in 2 knees of Grade 4. The shape of the high intensity region in the medial meniscus was classified into 5 types, as follows: Type 1, there was no high intensity region; Type 2, the high intensity region was observed to be restricted within the meniscus; Type 3, the high intensity region resembled a horizontal tear; Type 4, the high intensity region was observed as all of the medial joint space without a marginal area; Type 5, the high intensity region was observed as all of the medial joint space. In Grade 1, 3 knees were classified as Type 1, and 2 knees as Type 2; in Grade 2, 7 knees as Type 2, and 13 knees as Type 3, and 4 knees into Type 4; in Grade 3, 6 knees as Type 3, and 7 knees as Type 4; and in Grade 4, 2 knees as Type 4, and 2 knees as Type 5. These findings might suggest that the degeneration of medial meniscus in the medial type of OA was accelerated by mechanical stress due to varus deformity. (author)

  7. Lumbar disc arthroplasty: indications, biomechanics, types, and radiological criteria; Lumbale Bandscheibenendoprothesen: Indikationen, Biomechanik, Typen und radiologische Kriterien

    Energy Technology Data Exchange (ETDEWEB)

    Baur-Melnyk, A.; Reiser, M.F. [Klinikum Grosshadern der Ludwig-Maximilians-Universitaet, Orthopaedische Klinik und Poliklinik, Muenchen (Germany); Birkenmaier, C. [Klinikum Grosshadern der Ludwig-Maximilians-Universitaet, Institut fuer Klinische Radiologie, Muenchen (Germany)

    2006-09-15

    Lumbar total disc replacement (TDR) was developed to treat a painful degenerative lumbar motion segment while avoiding the disadvantages of fusion surgery, such as adjacent segment instabilities. Early clinical results with TDR have shown a significant reduction in low back pain and a significant improvement in disability scores. When compared to fusion, the results with TDR tend to be superior in the short-term follow-up and initial rehabilitation is faster. The radiological assessment is an integral part of the preoperative work-up. Plain X-rays of the lumbar spine should be complemented by flexion - extension views in order to assess residual segmental mobility. Computed tomography is used to exclude osteoarthritis of the zygapophyseal joints, Baastrup's disease (kissing spines) and other sources of low back pain. Magnetic resonance imaging is useful to exclude substantial disc protrusions; it allows for the detection of disc dehydration and bone marrow edema in the case of activated spondylochondrosis. If osteoporosis is suspected, an osteodensitometry of the lumbar spine should be performed. Postoperative plain X-rays should include antero-posterior and lateral views as well as flexion - extension views in the later postoperative course. Measurements should determine the disc space height in the lateral view, the segmental and total lumbar lordosis as well as the segmental mobility in the flexion - extension views. The ideal position of a TDR is exactly central in the ap-view and close to the dorsal border of the vertebral endplates in the lateral view. Malpositioning may cause segmental hyperlordosis and unbalanced loading of the endplates with the risk of implant subsidence and migration. (orig.) [German] Die lumbale Bandscheibenendoprothese (LBEP) wurde entwickelt, um ein schmerzhaftes lumbales Bewegungssegment unter Vermeidung der Nachteile einer Fusionsoperation zu behandeln. Erste klinische Ergebnisse der LBEP zeigen eine signifikante Reduktion der

  8. Dental radiology.

    Science.gov (United States)

    Woodward, Tony M

    2009-02-01

    Dental radiology is the core diagnostic modality of veterinary dentistry. Dental radiographs assist in detecting hidden painful pathology, estimating the severity of dental conditions, assessing treatment options, providing intraoperative guidance, and also serve to monitor success of prior treatments. Unfortunately, most professional veterinary training programs provide little or no training in veterinary dentistry in general or dental radiology in particular. Although a technical learning curve does exist, the techniques required for producing diagnostic films are not difficult to master. Regular use of dental x-rays will increase the amount of pathology detected, leading to healthier patients and happier clients who notice a difference in how their pet feels. This article covers equipment and materials needed to produce diagnostic intraoral dental films. A simplified guide for positioning will be presented, including a positioning "cheat sheet" to be placed next to the dental x-ray machine in the operatory. Additionally, digital dental radiograph systems will be described and trends for their future discussed.

  9. Genitourinary radiology

    Energy Technology Data Exchange (ETDEWEB)

    McClennan, B.L.

    1982-01-01

    A literature review of genitourinary radiology highlights new findings in the field that have occurred in the past year. The physiology of contrast media, and the occasional life-threatening contrast medial reaction are discussed. Common urologic problems such as stones, infection, and obstruction are examined in order to interpret static radiographs in a more meaningful way. The field of interventional uroradiology continues to expand, with new procedures being tried and new indications for old procedures being developed. (KRM)

  10. Chest radiology

    International Nuclear Information System (INIS)

    Reed, J.C.

    1990-01-01

    This book is a reference in plain chest film diagnosis provides a thorough background in the differential diagnosis of 22 of the most common radiologic patterns of chest disease. Each chapter is introduced with problem cases and a set of questions, followed by a tabular listing of the appropriate differential considerations. The book emphasizes plain films, CT and some MR scans are integrated to demonstrate how these modalities enhance the work of a case

  11. Diagnostic radiology 1987

    International Nuclear Information System (INIS)

    Margulis, A.R.; Gooding, C.A.

    1987-01-01

    This is the latest version of the continuing education course on diagnostic radiology given yearly by the Department of Radiology at the University of California, San Francisco. The lectures are grouped into sections on gastrointestinal radiology, mammography, uroradiology, magnetic resonance, hepatobiliary radiology, pediatric radiology, ultrasound, interventional radiology, chest radiology, nuclear medicine, cardiovascular radiology, and skeletal radiology. Each section contains four to eight topics. Each of these consists of text that represents highlights in narrative form, selected illustrations, and a short bibliography. The presentation gives a general idea of what points were made in the lecture

  12. Analysis of the Radiology Reports from Radiology Clinics

    International Nuclear Information System (INIS)

    Kim, Eun Jin; Kwack, Kyu Sung; Cho, Jae Hyun; Jang, Eun Ho

    2009-01-01

    The purpose of this study was to investigate the form and content of the radiology reports from radiology clinics in Korea. One hundred and sixty six radiology reports from 49 radiology clinics were collected, and these reports were referred to the academic tertiary medical center from March 2008 to February 2009. These included reports for CT (n = 18), MRI (n = 146) and examinations not specified (n = 2). Each report was evaluated for the presence of required contents (demographics, technical information, findings, conclusion, the name, license number and signature of the radiologist and the referring facility). These requirements were based on the guideline of the American College of Radiology and the previous research. The name of the patient, the gender, the body part, the type of examination, the time of examination and the conclusion, the name of the radiologist and the name of facility were well recorded in over 90% of the radiology reports. However, the identification number of the patient, the referring facility, the referring physician, the use of contrast material, the clinical information, the time of dictation, the signature of the radiologist and the license number of the radiologist were poorly recorded (less than 50%). The optimal format of a radiology report should be established for reliable and valid communication with clinicians

  13. Pediatric radiology

    International Nuclear Information System (INIS)

    Kirkpatrick, J.A. Jr.

    1985-01-01

    Computed tomography has made possible the excellent and basic work having to do with the characteristics of the trachea, its caliber, shape, and length in children. Another group of articles has to do with interventional pediatric radiology. This year there were a number of articles of which only a sample is included, dealing with therapeutic procedures involving drainage of abscesses, angioplasty, nephrostomy, therapeutic embolization, and the removal of esophageal foreign bodies. Obviously, there is no reason to think that techniques developed for the adult may not be applicable to the infant or child; also, there is no reason to believe that processes peculiar to the child should not be amenable to intervention, for instance, use of embolization of hepatic hemangioma and transluminal balloon valvuloplasty for pulmonary valvular stenosis. Among the reports and reviews, the author would add that sonography remains a basic imaging technique in pediatric radiology and each year its application broadens. For example, there is an excellent article having to do with sonography of the neonatal and infant hip and evaluation of the inferior vena cava and the gallbladder. Nuclear medicine continues to play a significant role in diagnosis, which is featured in two articles concerned with problems of the hip

  14. Long-term follow-up of 287 meningiomas in neurofibromatosis type 2 patients: clinical, radiological, and molecular features

    Science.gov (United States)

    Goutagny, Stéphane; Bah, Alpha Boubacar; Henin, Dominique; Parfait, Béatrice; Grayeli, Alexis Bozorg; Sterkers, Olivier; Kalamarides, Michel

    2012-01-01

    Decision-making criteria for optimal management of meningiomas in neurofibromatosis type 2 (NF2) patients is hampered by lack of robust data, particularly long-term natural history. Seventy-four NF2 patients harboring 287 cranial meningiomas followed up for a mean period of 110.2 months were studied retrospectively. The median number of meningiomas per patient was 3. The mean maximum diameter of meningiomas at diagnosis was 14.3 mm, with a mean annual growth rate of 1.5 mm. Sixty-six percent of tumors showed no or minimal growth. In a subgroup of patients with 3D MRI, 7.3% of meningiomas (28% of patients) had a volumetric growth rate 20% or more per year. Twenty-five de novo meningiomas appeared during the follow-up (8.7%) and demonstrated a higher growth rate than other meningiomas (6.6 mm/year). Fifty-six meningiomas (23%) in 34 NF2 patients (45.9%) were operated on during the follow-up period. Among symptomatic resected meningiomas, grades II and III tumors were found in 29% and 6% of cases, respectively, with a remarkable intratumor histological heterogeneity. Single nucleotide polymorphism array analysis of 22 meningioma samples in 14 NF2 patients showed increasing chromosome instability with increasing grade, the most frequent losses being on 22q, 1p, 18q, and 6p. This study provides clues to improve tailored treatment of meningiomas: de novo and brain edema-associated meningiomas require active treatment. Future clinical trials in NF2 need to focus specifically on meningiomas as the primary endpoint and should include patients with meningiomas growing 20% or more per year in order to assess new treatments. PMID:22711605

  15. Data mining in radiology

    International Nuclear Information System (INIS)

    Kharat, Amit T; Singh, Amarjit; Kulkarni, Vilas M; Shah, Digish

    2014-01-01

    Data mining facilitates the study of radiology data in various dimensions. It converts large patient image and text datasets into useful information that helps in improving patient care and provides informative reports. Data mining technology analyzes data within the Radiology Information System and Hospital Information System using specialized software which assesses relationships and agreement in available information. By using similar data analysis tools, radiologists can make informed decisions and predict the future outcome of a particular imaging finding. Data, information and knowledge are the components of data mining. Classes, Clusters, Associations, Sequential patterns, Classification, Prediction and Decision tree are the various types of data mining. Data mining has the potential to make delivery of health care affordable and ensure that the best imaging practices are followed. It is a tool for academic research. Data mining is considered to be ethically neutral, however concerns regarding privacy and legality exists which need to be addressed to ensure success of data mining

  16. Digital radiology

    International Nuclear Information System (INIS)

    Dallas, W.J.

    1990-01-01

    Radiology is vital to the life-saving efforts of surgeons and other physicians, but precious time can be lost generating the images and transferring them to and from the operating room. Furthermore, hospitals are straining under the task of storing and managing the deluge of diagnostic films produced every year. A 300-bed hospital generates about 1 gigabyte (8 x 10 9 bits) of picture information every day and is legally bound to hold it for three to seven years--30 years in the case of silicosis or black lung disease, illnesses that may have relevance to future lawsuits. Consequently, hospital warehouses are filling with x-ray film and written reports that are important for analysis of patient histories, for comparison between patients, and for analyzing the progress of disease. Yet only a fraction of the information's potential is being used because access is so complicated. What is more, films are easily lost, erasing valuable medical histories

  17. Natural radioactivity in soils of the state of Rio de Janeiro (Brazil): Radiological characterization and relationships to geological formation, soil types and soil properties.

    Science.gov (United States)

    Ribeiro, F C A; Silva, J I R; Lima, E S A; do Amaral Sobrinho, N M B; Perez, D V; Lauria, D C

    2018-02-01

    Located in the south-western part of Brazil, the state of Rio de Janeiro is geotectonically contained within a complex structural province that resulted in the amalgamation of the Western Gondwana Paleocontinent. To undertake an extensive radiological characterization of this complex geological province and investigate the influence of bedrock, soil type and soil chemical-physical characteristics on natural radionuclide levels in soils, 259 surface soil samples were collected that encompassed the main soil types and geological formations throughout the state. Gamma spectrometry analysis of the samples resulted in median values of 114 Bq.kg -1 for 40 K, 32 Bq.kg -1 for 226 Ra and 74 Bq.kg -1 for 228 Ra. The median value for 226 Ra was similar to the world median value for soils, the 40 K value was well below the worldwide value, and that for 228 Ra exceeded the world median value. The intense weathering caused by the high rainfall rates and high temperatures may be responsible for the low levels of 40 K in the soils, of which the strongly acidic and clayey soils are markedly K-depleted. A soil from a high-grade metamorphic rock (granulite) presented the lowest 226 Ra (18 Bq.kg -1 ) content, whereas the highest levels for 226 Ra (92 Bq.kg -1 ) and 228 Ra (139 Bq.kg - 1) were observed in a young soil enriched in primary minerals (Leptsol). A lowland soil (Gleysol) showed the highest median of 40 K (301 Bq.kg -1 ). Strongly acidic soils tended to present high amounts of 226 Ra, and sandy soils tended to contain low levels of 228 Ra. The external radiation dose indicates that the state has a background radiation level within the natural range. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Radiology information management system, TOSRIM

    Energy Technology Data Exchange (ETDEWEB)

    Tani, Yuichiro; Uchiyama, Akira; Kimura, Hirohito (Toshiba Corp., Kawasaki, Kanagawa (Japan))

    1991-02-01

    This is a report on a new type of distributed computer system for radiology departments named 'TOSRIM' (Toshiba radiology information management system), which is designed to be installed between medical diagnosis equipment and a host computer system in a hospital. Recently, a new type of host computer system has been developed which enables doctors to order any of the hospital's entire activities using terminals. By connecting 'TOSRIM' to this type of host computer system, many of the activities of a radiology department can be carried out via terminals without the use of examination requirement forms. As well as being connected to medical diagnosis equipment, 'TOSRIM' can also be connected to a medical imaging system which stores and displays medical images. By means of these connections, doctors will be able to diagnose medical images using display terminals without the need for films. (author).

  19. Radiology information management system, TOSRIM

    International Nuclear Information System (INIS)

    Tani, Yuichiro; Uchiyama, Akira; Kimura, Hirohito

    1991-01-01

    This is a report on a new type of distributed computer system for radiology departments named 'TOSRIM' (Toshiba radiology information management system), which is designed to be installed between medical diagnosis equipment and a host computer system in a hospital. Recently, a new type of host computer system has been developed which enables doctors to order any of the hospital's entire activities using terminals. By connecting 'TOSRIM' to this type of host computer system, many of the activities of a radiology department can be carried out via terminals without the use of examination requirement forms. As well as being connected to medical diagnosis equipment, 'TOSRIM' can also be connected to a medical imaging system which stores and displays medical images. By means of these connections, doctors will be able to diagnose medical images using display terminals without the need for films. (author)

  20. Radiologic protection in dental radiology

    International Nuclear Information System (INIS)

    Pacheco Jimenez, R.E.; Bermudez Jimenez, L.A.

    2000-01-01

    With this work and employing the radioprotection criterion, the authors pretend to minimize the risks associated to this practice; without losing the quality of the radiologic image. Odontology should perform the following criterions: 1. Justification: all operation of practice that implies exposition to radiations, should be reweighed, through an analysis of risks versus benefits, with the purpose to assure, that the total detriment will be small, compared to resultant benefit of this activity. 2. Optimization: all of the exposures should be maintained as low as reasonable possible, considering the social and economic factors. 3. Dose limit: any dose limit system should be considered as a top condition, nota as an admissible level. (S. Grainger)

  1. Radiological Control Manual

    International Nuclear Information System (INIS)

    1993-04-01

    This manual has been prepared by Lawrence Berkeley Laboratory to provide guidance for site-specific additions, supplements, and clarifications to the DOE Radiological Control Manual. The guidance provided in this manual is based on the requirements given in Title 10 Code of Federal Regulations Part 835, Radiation Protection for Occupational Workers, DOE Order 5480.11, Radiation Protection for Occupational Workers, and the DOE Radiological Control Manual. The topics covered are (1) excellence in radiological control, (2) radiological standards, (3) conduct of radiological work, (4) radioactive materials, (5) radiological health support operations, (6) training and qualification, and (7) radiological records

  2. Radiological Control Manual

    Energy Technology Data Exchange (ETDEWEB)

    1993-04-01

    This manual has been prepared by Lawrence Berkeley Laboratory to provide guidance for site-specific additions, supplements, and clarifications to the DOE Radiological Control Manual. The guidance provided in this manual is based on the requirements given in Title 10 Code of Federal Regulations Part 835, Radiation Protection for Occupational Workers, DOE Order 5480.11, Radiation Protection for Occupational Workers, and the DOE Radiological Control Manual. The topics covered are (1) excellence in radiological control, (2) radiological standards, (3) conduct of radiological work, (4) radioactive materials, (5) radiological health support operations, (6) training and qualification, and (7) radiological records.

  3. Integrative teaching in Radiology. A survey

    International Nuclear Information System (INIS)

    Dettmer, S.; Weidemann, J.; Wacker, F.; Fischer, V.

    2015-01-01

    To survey integrative teaching in radiology at German universities. A questionnaire about radiological education was sent electronically to all 37 chairpersons of university radiology departments in Germany. The questions included the course type, teaching methods, concept, perception, and advantages and disadvantages of integrative teaching. Statistical analysis was performed with nonparametric statistics and chi-square test. The survey was considered representative with a return rate of 68%. Integrative teaching is established at 4/5 of all departments. Integrative teaching is well accepted with an acceptance rate that is significantly higher in so-called 'Modellstudiengaengen' (model courses of study) (100%) compared to conventional courses of study (72%). The advantages of integrative teaching include linking of content (92%) and preparation for interdisciplinary work (76%). The disadvantages include high effort (75%) and time (67%) for organization. Furthermore, there is a risk that basic radiological facts and knowledge cannot be conveyed and that the visibility of radiology as an independent discipline is lost. Conventional radiological teaching has a similarly high acceptance (84%) compared to integrative courses (76%). Integrative teaching has a high acceptance among chairpersons in radiology in Germany despite the greater effort. A good interdisciplinary collaboration is essential for integrative teaching and at the same time this can be conveyed to the students. However, the visibility of radiology as a discipline and the possibility to cover basic radiological content must be ensured. Therefore, both conventional courses and integrative teaching seems reasonable, especially in cross-disciplinary subjects such as radiology.

  4. Radiological findings in NAO syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Al-Otaibi, Leftan; Hugosson, Claes O. [Department of Radiology, King Faisal Specialist Hospital and Research Center, Riyadh (Saudi Arabia); Al-Mayouf, Sulalman M.; Majeed, Mahmoud; Al-Eid, Wea' am; Bahabri, Sultan [Department of Paediatrics, King Faisal Specialist Hospital and Research Center, Riyadh (Saudi Arabia)

    2002-07-01

    Background: Diseases exhibiting osteolysis in children are rare hereditary conditions. Several types have been recognised with different clinical manifestations. One type includes subcutaneous nodules, arthropathy and osteolysis and has been termed NAO syndrome. Previous radiological reports have described the affected bones, usually the carpal and tarsal regions, but a detailed analysis of the radiological findings of both the axial as well as the appendicular skeleton has not been reported. Objectives: To describe the radiological findings in a large group of children with an autosomal recessive disease characterized by nodules, familial arthropathy and osteolysis. Materials and methods: The study comprises 14 patients from 9 families and all patients had the triad of nodulosis, arthropathy and osteolysis (NAO). Results: The most common radiological manifestations were osteopenia, undertubulation of long bones, arthritic changes, sclerotic sutures of the calvaria, osteolysis and muscle contractures. Other common findings were squared vertebrae, broad medial clavicles and brachycephaly. Progress of disease was documented in more than half of the patients. Conclusions: Our study is the first report of the detailed radiological findings of NAO syndrome. In NAO syndrome, both the axial and appendicular skeleton are involved (orig.)

  5. Radiological findings in NAO syndrome

    International Nuclear Information System (INIS)

    Al-Otaibi, Leftan; Hugosson, Claes O.; Al-Mayouf, Sulalman M.; Majeed, Mahmoud; Al-Eid, Wea'am; Bahabri, Sultan

    2002-01-01

    Background: Diseases exhibiting osteolysis in children are rare hereditary conditions. Several types have been recognised with different clinical manifestations. One type includes subcutaneous nodules, arthropathy and osteolysis and has been termed NAO syndrome. Previous radiological reports have described the affected bones, usually the carpal and tarsal regions, but a detailed analysis of the radiological findings of both the axial as well as the appendicular skeleton has not been reported. Objectives: To describe the radiological findings in a large group of children with an autosomal recessive disease characterized by nodules, familial arthropathy and osteolysis. Materials and methods: The study comprises 14 patients from 9 families and all patients had the triad of nodulosis, arthropathy and osteolysis (NAO). Results: The most common radiological manifestations were osteopenia, undertubulation of long bones, arthritic changes, sclerotic sutures of the calvaria, osteolysis and muscle contractures. Other common findings were squared vertebrae, broad medial clavicles and brachycephaly. Progress of disease was documented in more than half of the patients. Conclusions: Our study is the first report of the detailed radiological findings of NAO syndrome. In NAO syndrome, both the axial and appendicular skeleton are involved (orig.)

  6. Neurofibromatose tipo 1: aspectos radiológicos do tórax Type 1 neurofibromatosis: radiological findings of the chest

    Directory of Open Access Journals (Sweden)

    Marcos Pontes Muniz

    2010-06-01

    Full Text Available OBJETIVO: Identificar alterações e frequências nas radiografias simples do tórax sugestivas de neurofibromatose tipo 1 e avaliar a possibilidade de inclusão de massa no mediastino posterior como critério de diagnóstico de neurofibromatose tipo 1. MATERIAIS E MÉTODOS: Foram realizadas radiografias com técnica padrão de tórax em póstero-anterior e em perfil de 141 pacientes com neurofibromatose tipo 1, atendidos no Serviço de Radiologia do Hospital de Base e Faculdade de Medicina de São José do Rio Preto, SP. Os resultados obtidos foram avaliados por métodos não paramétricos ao nível de 0,05 de significância (p = 0,05. RESULTADOS: No presente estudo, 141 pacientes com neurofibromatose tipo 1 realizaram radiografia de tórax, sendo as alterações mais frequentes: erosão óssea das costelas (19,8%, peito escavado (12,0%, cifoescoliose (3,5% e massas no mediastino posterior (7,1%. Esses resultados sugerem que as massas (neurofibroma e meningocele devem ser incluídas como critério diagnóstico para neurofibromatose tipo 1, juntamente com displasia do osso esfenoide, pseudoartrose e afinamento do córtex de ossos longos, conforme definido pelo National Institutes of Health. CONCLUSÃO: A presença das massas no mediastino posterior associada às alterações ósseas características definidas pelo National Institutes of Health indicam ser um achado consistente para se considerar como critério diagnóstico da doença.OBJECTIVE: To identify chest radiography findings suggestive of type 1 neurofibromatosis, establishing their frequency and evaluating the possibility of including the presence of posterior mediastinal masses as a criterion for the diagnosis of type 1 neurofibromatosis. MATERIALS AND METHODS: The present study included 141 patients with type 1 neurofibromatosis assisted at the Service of Radiology of Hospital de Base and Faculdade de Medicina de São José do Rio Preto, SP, Brazil, and submitted to standard chest

  7. Educational treasures in Radiology: The Radiology Olympics - striving for gold in Radiology education

    OpenAIRE

    Talanow, Roland

    2010-01-01

    This article focuses on Radiology Olympics (www.RadiologyOlympics.com) - a collaboration with the international Radiology community for Radiology education, Radiolopolis (www.Radiolopolis.com). The Radiology Olympics honour the movers and shakers in Radiology education and offer an easy to use platform for educating medical professionals based on Radiology cases.

  8. IAEA Perspectives on Radiological Characterisation

    International Nuclear Information System (INIS)

    O'Sullivan, Patrick; Ljubenov, Vladan

    2012-01-01

    Requirements for characterization of radiological and other hazards in nuclear facilities are reflected in the IAEA Safety Standards. WS-R-5, Safety Requirements for Decommissioning of Facilities using Radioactive Material, includes a requirement that 'During the preparation of the final decommissioning plan, the extent and type of radioactive material (irradiated and contaminated structures and components) at the facility shall be determined by means of a detailed characterization survey and on the basis of records collected during the operational period'. The subsidiary Safety Guide WS-G-2.1, Decommissioning of Nuclear Power Plants and Research Reactors, further elaborates that 'A survey of radiological and non-radiological hazards provides an important input for the safety assessment and for implementing a safe approach during the work'. Although the characterisation requirements addressed in the Safety Standards relate primarily to the detailed survey activities undertaken following the shutdown of the facility, it is evident that radiological characterization is of relevance to all major phases of the lifetime of a nuclear facility, including: - the siting phase - baseline surveys are undertaken to determine background radiation levels; - the construction phase - construction materials are retained to support future calculations of radioactivity distributions; - the operational phase - surveys are done regularly, with additional surveys being required following incidents involving plant contamination; - the transition phase - detailed radiological surveys are required to support the development of the final decommissioning plan; and - the closure phase - a final survey of the site and any remaining structures will be needed to support an application for release of the site from regulatory control. In the case of facilities that are already shut down, the main purpose of radiological characterisation is to provide a reliable database of information on the

  9. Radiology research in mainland China in the past 10 years: a survey of original articles published in Radiology and European Radiology.

    Science.gov (United States)

    Zhang, Long Jiang; Wang, Yun Fei; Yang, Zhen Lu; Schoepf, U Joseph; Xu, Jiaqian; Lu, Guang Ming; Li, Enzhong

    2017-10-01

    To evaluate the features and trends of Radiology research in Mainland China through bibliometric analysis of the original articles published in Radiology and European Radiology (ER) between 2006 and 2015. We reviewed the original articles published in Radiology and ER between 2006 and 2015. The following information was abstracted: imaging subspecialty, imaging technique(s) used, research type, sample size, study design, statistical analysis, study results, funding declarations, international collaborations, number of authors, department and province of the first author. All variables were examined longitudinally over time. Radiology research in Mainland China saw a substantial increase in original research articles published, especially in the last 5 years (P articles published in Radiology and ER. Radiology research in Mainland China has seen substantial growth in the past 5 years with neuroradiology, vascular/interventional Radiology, and abdominal Radiology as the most productive fields. MR imaging is the most used modality. Article provenience shows a distinct geographical pattern. • Radiology research in Mainland China saw a substantial increase. • Neuroradiology, vascular/interventional Radiology, and abdominal Radiology are the most productive fields. • MRI is the most used modality in Mainland China's Radiology research. • Guangdong, Shanghai, and Beijing are the most productive provinces.

  10. Radiological Protection Science and Application

    International Nuclear Information System (INIS)

    Janssens, Augustin; ); Mossman, Ken; Morgan, Bill

    2016-01-01

    Since the discovery of radiation at the end of the 19. century, the health effects of exposure to radiation have been studied more than almost any other factor with potential effects on human health. The NEA has long been involved in discussions on the effects of radiation exposure, releasing two reports in 1994 and 2007 on radiological protection science. This report is the third in this state-of-the-art series, examining recent advances in the understanding of radiation risks and effects, particularly at low doses. It focuses on radiobiology and epidemiology, and also addresses the social science aspects of stakeholder involvement in radiological protection decision making. The report summarises the status of, and issues arising from, the application of the International System of Radiological Protection to different types of prevailing circumstances. Reports published by the NEA Committee on Radiation Protection and Public Health (CRPPH) in 1998 and 2007 provided an overview of the scientific knowledge available at that time, as well as the expected results from further research. They also discussed the policy implications that these results could have for the radiological protection system. The 2007 report highlighted challenges posed by developments in relation to medical exposure and by intentions to include the environment (i.e. non-human species), within the scope of the radiological protection system. It also addressed the need to be able to respond to a radiological terrorist attack. This report picks up on where the 1998 and 2007 reports left off, and addresses the state of the art in radiological prevention science and application today. It is divided into five chapters. Firstly, following broadly the structural topics from the 1998 and 2007 reports, the more purely scientific aspects of radiological protection are presented. These include cancer risk of low dose and dose rates, non-cancer effects and individual sensitivity. In view of the increasing

  11. Interventional Radiology: Stroke

    Science.gov (United States)

    ... Government affairs Global outreach Publications Annual Report IR Quarterly Journal of Vascular and Interventional Radiology Newsletters Practice Resources Quality Improvement Clinical practice MACRA Matters Health Policy, Economics, Coding Toolkits Society of Interventional Radiology 3975 Fair ...

  12. Radiological diagnostics in hyperparathyroidism

    International Nuclear Information System (INIS)

    Moedder, U.; Kuhn, F.P.; Gruetzner, G.

    1991-01-01

    The most important radiologically detectable effects of the primary and secondary hyperparathyroidism of the skeletal system and the periarticular soft tissue structures are presented. In the following sensitivity and specificity of radiological imaging - sonography, scintigraphy, computed tomography, magnetic resonance imaging, arteriography and selective venous sampling - in the preoperative diagnostic of the parathyroid adenomas are discussed. Therefore, radiological imaging can be omitted before primary surgery. It was only in secondary surgery that radiological process proved useful and a guide during surgical intervention. (orig.) [de

  13. Radiology systems architecture.

    Science.gov (United States)

    Deibel, S R; Greenes, R A

    1996-05-01

    This article focuses on the software requirements for enterprise integration in radiology. The needs of a future radiology systems architecture are examined, both at a concrete functional level and at an abstract system-properties level. A component-based approach to software development is described and is validated in the context of each of the abstract system requirements for future radiology computing environments.

  14. Radiological design criteria

    International Nuclear Information System (INIS)

    Selby, J.M.; Andersen, B.V.; Carter, L.A.; Waite, D.A.

    1977-01-01

    Many new nuclear facilities are unsatisfactory from a radiation protection point of view, particularly when striving to maintain occupational exposure as low as practicable 'ALAP'. Radiation protection is achieved through physical protective features supplemented by administrative controls. Adequate physical protective feature should be achieved during construction so that supplemental administrative controls may be kept simple and workable. Many nuclear facilities fall short of adequate physical protective features, thus, remedial and sometimes awkward administrative procedures are required to safely conduct work. In reviewing the various handbooks, reports and regulations which deal with radiation protection, it may be noted that there is minimal radiological design guidance for application to nuclear facilities. A set of criteria or codes covering functional areas rather than specific nuclear facility types is badly needed. The following are suggested as functional areas to be considered: characterization of the Facility; siting and access; design exposure limits; layout (people and materials flow); ventilation and effluent control; radiation protection facilities and systems. The application of such radiological design criteria early in the design process would provide some assurance that nuclear facilities will be safe, flexible, and efficient with a minimum of costly retrofitting or administrative restrictions. Criteria which we have found helpful in these functional areas is discussed together with justification for adoption of such criteria and identification of problems which still require solution

  15. Planning new basic guideline to the radiological risk. Content, radiological criteria and implementation

    International Nuclear Information System (INIS)

    Calvin Cuartero, M.; Vega Riber, R. de la; Martin Calvarro, J. M.

    2011-01-01

    The most important aspects of the Basic Guideline focus on their area of planning, groups of potential radiological emergencies in the type of activity associated with the levels of response planning and responsible organizations, structure and functions for each level, radiological criteria, implementation and maintenance of the effectiveness of the level of response plans abroad.

  16. Integrative teaching in radiology - a survey.

    Science.gov (United States)

    Dettmer, S; Weidemann, J; Fischer, V; Wacker, F K

    2015-04-01

    To survey integrative teaching in radiology at German universities. A questionnaire about radiological education was sent electronically to all 37 chairpersons of university radiology departments in Germany. The questions included the course type, teaching methods, concept, perception, and advantages and disadvantages of integrative teaching. Statistical analysis was performed with nonparametric statistics and chi-square test. The survey was considered representative with a return rate of 68 %. Integrative teaching is established at 4/5 of all departments. Integrative teaching is well accepted with an acceptance rate that is significantly higher in so-called "Modellstudiengängen" [model courses of study] (100 %) compared to conventional courses of study (72 %). The advantages of integrative teaching include linking of content (92 %) and preparation for interdisciplinary work (76 %). The disadvantages include high effort (75 %) and time (67 %) for organization. Furthermore, there is a risk that basic radiological facts and knowledge cannot be conveyed and that the visibility of radiology as an independent discipline is lost. Conventional radiological teaching has a similarly high acceptance (84 %) compared to integrative courses (76 %). Integrative teaching has a high acceptance among chairpersons in radiology in Germany despite the greater effort. A good interdisciplinary collaboration is essential for integrative teaching and at the same time this can be conveyed to the students. However, the visibility of radiology as a discipline and the possibility to cover basic radiological content must be ensured. Therefore, both conventional courses and integrative teaching seems reasonable, especially in cross-disciplinary subjects such as radiology. Both integrative teaching and conventional radiological teaching are highly accepted. The advantages include the linking of multidisciplinary content and the preparation for interdisciplinary cooperation

  17. Radiology and fine art.

    Science.gov (United States)

    Marinković, Slobodan; Stošić-Opinćal, Tatjana; Tomić, Oliver

    2012-07-01

    The radiologic aesthetics of some body parts and internal organs have inspired certain artists to create specific works of art. Our aim was to describe the link between radiology and fine art. We explored 13,625 artworks in the literature produced by 2049 artists and found several thousand photographs in an online image search. The examination revealed 271 radiologic artworks (1.99%) created by 59 artists (2.88%) who mainly applied radiography, sonography, CT, and MRI. Some authors produced radiologic artistic photographs, and others used radiologic images to create artful compositions, specific sculptures, or digital works. Many radiologic artworks have symbolic, metaphoric, or conceptual connotations. Radiology is clearly becoming an original and important field of modern art.

  18. Radiology research in mainland China in the past 10 years: a survey of original articles published in Radiology and European Radiology

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Long Jiang; Wang, Yun Fei; Yang, Zhen Lu; Lu, Guang Ming [Medical School of Nanjing University, Department of Medical Imaging, Jinling Hospital, Nanjing, Jiangsu (China); Schoepf, U.J. [Medical School of Nanjing University, Department of Medical Imaging, Jinling Hospital, Nanjing, Jiangsu (China); Medical University of South Carolina, Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Charleston, SC (United States); Xu, Jiaqian [Medical University of South Carolina, Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Charleston, SC (United States); Li, Enzhong [National Natural Science Foundation of China, Department of Medical Science, Beijing (China)

    2017-10-15

    To evaluate the features and trends of Radiology research in Mainland China through bibliometric analysis of the original articles published in Radiology and European Radiology (ER) between 2006 and 2015. We reviewed the original articles published in Radiology and ER between 2006 and 2015. The following information was abstracted: imaging subspecialty, imaging technique(s) used, research type, sample size, study design, statistical analysis, study results, funding declarations, international collaborations, number of authors, department and province of the first author. All variables were examined longitudinally over time. Radiology research in Mainland China saw a substantial increase in original research articles published, especially in the last 5 years (P < 0.001). Within Mainland China's Radiology research, neuroradiology, vascular/interventional Radiology, and abdominal Radiology were the most productive fields; MR imaging was the most used modality, and a distinct geographic provenience was observed for articles published in Radiology and ER. Radiology research in Mainland China has seen substantial growth in the past 5 years with neuroradiology, vascular/interventional Radiology, and abdominal Radiology as the most productive fields. MR imaging is the most used modality. Article provenience shows a distinct geographical pattern. (orig.)

  19. Radiology research in mainland China in the past 10 years: a survey of original articles published in Radiology and European Radiology

    International Nuclear Information System (INIS)

    Zhang, Long Jiang; Wang, Yun Fei; Yang, Zhen Lu; Lu, Guang Ming; Schoepf, U.J.; Xu, Jiaqian; Li, Enzhong

    2017-01-01

    To evaluate the features and trends of Radiology research in Mainland China through bibliometric analysis of the original articles published in Radiology and European Radiology (ER) between 2006 and 2015. We reviewed the original articles published in Radiology and ER between 2006 and 2015. The following information was abstracted: imaging subspecialty, imaging technique(s) used, research type, sample size, study design, statistical analysis, study results, funding declarations, international collaborations, number of authors, department and province of the first author. All variables were examined longitudinally over time. Radiology research in Mainland China saw a substantial increase in original research articles published, especially in the last 5 years (P < 0.001). Within Mainland China's Radiology research, neuroradiology, vascular/interventional Radiology, and abdominal Radiology were the most productive fields; MR imaging was the most used modality, and a distinct geographic provenience was observed for articles published in Radiology and ER. Radiology research in Mainland China has seen substantial growth in the past 5 years with neuroradiology, vascular/interventional Radiology, and abdominal Radiology as the most productive fields. MR imaging is the most used modality. Article provenience shows a distinct geographical pattern. (orig.)

  20. Internetcommunication in radiology

    International Nuclear Information System (INIS)

    Ranschaert, E.; Achenbach, S.

    2000-01-01

    E-mail is an Internet service that can be used for sending messages and binary files between individuals as well as for participating in discussion groups. For sending and receiving these types of messages, the users must use either a dedicated e-mail client or one of the several mailing facilities of the World Wide Web. The newsgroups enable likeminded people to discuss subjects on a group-wide basis, but access is generally not limited, and the participants cannot be selected. Conclusion: The objective of this paper is to give radiologists an introduction to using e-mail, mailing lists and newsgroups, the three most important communication services of the Internet. The function of these services is explained, and the advantages of implementing them in a radiology practice are discussed. Potential problems and concerns including security matters are highlighted, and ways in which they can be resolved are suggested. (orig.) [de

  1. Radiology today. Volume 4

    Energy Technology Data Exchange (ETDEWEB)

    Heuck, F.H.W.; Donner, M.W.

    1987-01-01

    The book discusses the following contents: Advances in Cardiovascular Imaging: Digital Arteriography: Ongoing Developments. Magnetic Resonance Imaging of the Cardiovascular System. Comparison of Vascular CT and MRI. Characterization of Vascular Lesions by Ultrasound - Progress in Vascular Interventions: Laser Angioplasty: A Review. Fibrinolytic Therapy Combined with Clot Extraction. Drugs Useful in Angioplasty. Developments in Cardiovascular Imaging: Blood Flow Measurements with Digital Arteriography. Selection of Imaging Techniques for Venous Thromboembolic Disease. Clinical Usefulness of High-Verus Low-Osmolality Contrast Agents. Developments in Angiographic and Interventional Instrumentation. Progress in Cardiovascular Interventions. Inferior Vena Cava Filters: Types, Placement, and Efficiency. Transluminal Vascular Stenting and Grafting. Venography and Sclerotherapy of Varioceles in Children and Adolescents. A New Catheter System - Important Hip Problems: Radiologic and Pathologic Correlation and Hip Disease. Comparison of Imaging Modalities in Femoral Head Necrosis. Osteoartrosis and Arthritis (Synovitis) of the Hip. Hip Anthrography.

  2. Analysis of papers in radiological journals in recent years: a comparison of journal of Korean radiologic society and radiology

    International Nuclear Information System (INIS)

    Kim, Jin Suh; Kim, Jae Kyun; Han, Dong Bok; Lim, Tae Hwan

    1997-01-01

    The purpose of this study was to determine current trends and the mode of future development in the field of medical radiology and to promote research among the nation's radiologists by analyzing the contents of the Journal of the Korean Radiologic Society(JKRS) and Radiology. The number of articles published in JKRS each year between 1990 and 1994 was counted. The research articles in JKRS(n=740) and in Radiology(n=1748) between 1992 and 1994 were categorized according to the objective, type, topic, materials, and radiologic techniques of their contents on the basis of predetermined criteria. Domestic Masters theses(n=126) and doctoral dissertations(n=75) accepted between 1990 and 1994, and domestic materials published in international journals (n=416) between 1986 and 1994 were also categorized using the same criteria. The greatest increase in the number of articles published in JKRS was seen during 1994. The majority of these aimed to retrospectively analyse the findings of diseases while the majority of articles published in Radiology dealt prospectively with the development and/or evaluation of diagnostic methods. More variety of topics and issues was seen in Radiology than in JKRS. The number of articles of domestic materials published in international journals increased from 1986 to 1994, while the number of articles of foreign materials published in Korea was relatively stationary : A significant number of theses and dissertations dealt, mostly prospectively, with studies of pathophysiologic and/or pharmacologic mechanisms using animal models. In order to understand both current trends and the direction and mode of future developments in the field of radiology, and to be able to actively deal with challenges at the forefront of radiologic development, it is essential to review research articles published in radiology-related journals

  3. Poul Erik Andersen's radiological work on Osteochondrodysplasias and interventional radiology

    DEFF Research Database (Denmark)

    Andersen, Poul Erik

    2011-01-01

    Hospital. His significant experience and extensive scientific work has led to many posts in the Danish Society of Interventional Radiology, the European Society of Radiology and the Cardiovascular and Interventional Radiological Society of Europe, where he is a fellow and has passed the European Board...... of Interventional Radiology - The European qualification in Interventional Radiology....

  4. Socioeconomic trends in radiology

    International Nuclear Information System (INIS)

    Barneveld Binkhuysen, F.H.

    1998-01-01

    For radiology the socioeconomic environment is a topic of increasing importance. In addition to the well-known important scientific developments in radiology such as interventional MRI, several other major trends can be recognized: (1) changes in the delivery of health care, in which all kinds of managed care are developing and will influence the practice of radiology, and (2) the process of computerization and digitization. The socioeconomic environment of radiology will be transformed by the developments in managed care, teleradiology and the integration of information systems. If radiologists want to manage future radiology departments they must have an understanding of the changes in the fields of economics and politics that are taking place and that will increasingly influence radiology. Some important and recognizable aspects of these changes will be described here. (orig.)

  5. Emergency pediatric radiology

    Energy Technology Data Exchange (ETDEWEB)

    Carty, H. [ed.

    1999-11-01

    This unique book covers the main clinical presentations of children to an emergency room and considers in detail the radiological investigation of such emergencies. Numerous high-quality illustrations of the radiological manifestations of acutely presenting illness in children ensure that the volume will serve as a rapid reference source for both pediatricians and radiologists. All of the authors are specialist pediatric radiologists who provide emergency radiological services on a daily basis, and the text reflects this level of expertise. (orig.)

  6. Essentials of skeletal radiology

    Energy Technology Data Exchange (ETDEWEB)

    Yochum, T.R.; Rowe, L.J.

    1987-01-01

    This book discusses the following topics of skeletal radiology: Positioning of patients for diagnostic radiology and normal anatomy; congenital malformations of skeleton; measurements in radiology; spondylolisthesis; metabolic and endocrine diseases of bone and their diagnostic aspects; image processing of vertebrae, skeleton, bone fractures evaluations and epidemiological and social aspects of some bone diseases. Various modalities as CT scanning, NMR imaging, ultrasonography and biomedical radiography are briefly discussed in relation to bone pathology.

  7. Radiological Protection in Medicine

    International Nuclear Information System (INIS)

    Valetin, J.

    2011-01-01

    This report was prepared to underpin the Commission's 2007 Recommendations with regard to the medical exposure of patients, including their comforters and carers, and volunteers in biomedical research. It addresses the proper application of the fundamental principles (justification, optimisation of protection, and application of dose limits) of the Commission's 2007 Recommendations to these individuals. With regard to medical exposure of patients, it is not appropriate to apply dose limits or dose constraints, because such limits would often do more harm than good. Often, there are concurrent chronic, severe, or even life-threatening medical conditions that are more critical than the radiation exposure. The emphasis is then on justification of the medical procedures and on the optimisation of radiological protection. In diagnostic and interventional procedures, justification of procedures (for a defined purpose and for an individual patient), and management of the patient dose commensurate with the medical task, are the appropriate mechanisms to avoid unnecessary or unproductive radiation exposure. Equipment features that facilitate patient dose management, and diagnostic reference levels derived at the appropriate national, regional, or local level, are likely to be the most effective approaches. In radiation therapy, the avoidance of accidents is a predominant issue. With regard to comforters and carers, and volunteers in biomedical research, dose constraints are appropriate. Over the last decade, the Commission has published a number of documents that provided detailed advice related to radiological protection and safety in the medical applications of ionising radiation. Each of the publications addressed a specific topic defined by the type of radiation source and the medical discipline in which the source is applied, and was written with the intent of communicating directly with the relevant medical practitioners and supporting medical staff. This report

  8. Machine Learning and Radiology

    Science.gov (United States)

    Wang, Shijun; Summers, Ronald M.

    2012-01-01

    In this paper, we give a short introduction to machine learning and survey its applications in radiology. We focused on six categories of applications in radiology: medical image segmentation, registration, computer aided detection and diagnosis, brain function or activity analysis and neurological disease diagnosis from fMR images, content-based image retrieval systems for CT or MRI images, and text analysis of radiology reports using natural language processing (NLP) and natural language understanding (NLU). This survey shows that machine learning plays a key role in many radiology applications. Machine learning identifies complex patterns automatically and helps radiologists make intelligent decisions on radiology data such as conventional radiographs, CT, MRI, and PET images and radiology reports. In many applications, the performance of machine learning-based automatic detection and diagnosis systems has shown to be comparable to that of a well-trained and experienced radiologist. Technology development in machine learning and radiology will benefit from each other in the long run. Key contributions and common characteristics of machine learning techniques in radiology are discussed. We also discuss the problem of translating machine learning applications to the radiology clinical setting, including advantages and potential barriers. PMID:22465077

  9. Radiological Emergency Response Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — Quality Data Asset includes all current and historical emergency radiological response event and incident of national significance data and surveillance, monitoring,...

  10. Machine learning and radiology.

    Science.gov (United States)

    Wang, Shijun; Summers, Ronald M

    2012-07-01

    In this paper, we give a short introduction to machine learning and survey its applications in radiology. We focused on six categories of applications in radiology: medical image segmentation, registration, computer aided detection and diagnosis, brain function or activity analysis and neurological disease diagnosis from fMR images, content-based image retrieval systems for CT or MRI images, and text analysis of radiology reports using natural language processing (NLP) and natural language understanding (NLU). This survey shows that machine learning plays a key role in many radiology applications. Machine learning identifies complex patterns automatically and helps radiologists make intelligent decisions on radiology data such as conventional radiographs, CT, MRI, and PET images and radiology reports. In many applications, the performance of machine learning-based automatic detection and diagnosis systems has shown to be comparable to that of a well-trained and experienced radiologist. Technology development in machine learning and radiology will benefit from each other in the long run. Key contributions and common characteristics of machine learning techniques in radiology are discussed. We also discuss the problem of translating machine learning applications to the radiology clinical setting, including advantages and potential barriers. Copyright © 2012. Published by Elsevier B.V.

  11. Mobile computing for radiology.

    Science.gov (United States)

    Auffermann, William F; Chetlen, Alison L; Sharma, Arjun; Colucci, Andrew T; DeQuesada, Ivan M; Grajo, Joseph R; Kung, Justin W; Loehfelm, Thomas W; Sherry, Steven J

    2013-12-01

    The rapid advances in mobile computing technology have the potential to change the way radiology and medicine as a whole are practiced. Several mobile computing advances have not yet found application to the practice of radiology, while others have already been applied to radiology but are not in widespread clinical use. This review addresses several areas where radiology and medicine in general may benefit from adoption of the latest mobile computing technologies and speculates on potential future applications. Copyright © 2013 AUR. Published by Elsevier Inc. All rights reserved.

  12. Glove Perforations During Interventional Radiological Procedures

    International Nuclear Information System (INIS)

    Leena, R. V.; Shyamkumar, N. K.

    2010-01-01

    Intact surgical gloves are essential to avoid contact with blood and other body fluids. The objective of this study was to estimate the incidence of glove perforations during interventional radiological procedures. In this study, a total of 758 gloves used in 94 interventional radiological procedures were examined for perforations. Eleven perforations were encountered, only one of which was of occult type. No significant difference in the frequency of glove perforation was found between the categories with varying time duration.

  13. Radiological monitoring. Controlling surface water pollution

    International Nuclear Information System (INIS)

    Morin, Maxime

    2018-01-01

    Throughout France, surface waters (from rivers to brooks) located at the vicinity of nuclear or industrial sites, are subject to regular radiological monitoring. An example is given with the radiological monitoring of a small river near La Hague Areva's plant, where contaminations have been detected with the help of the French IRSN nuclear safety research organization. The sampling method and various measurement types are described

  14. Patient exposure evaluation in Romanian radiological departments

    International Nuclear Information System (INIS)

    Girjoaba, O.; Cucu, A.

    2012-01-01

    Purpose: A nation-wide evaluation of ionizing radiation exposure of the Romanian population due to the radiological examinations is performed in accordance with European Directive 97/43 EURATOM implemented in national regulations. Method: The study is applied to the collected data from radiological departments from Romanian hospitals during 2010. The radiological examinations were grouped in three categories: conventional diagnostic radiology, interventional radiology and computed tomography. The annual collective dose was determined from the reported data about the mean effective doses and the frequency for each type of radiological examination, in conformity with the national regulations. Regarding the frequency aspects, the results include the age and gender distributions. Major results: More then 6 million radiological examinations were performed in 2010, Romania having a population about of 20.3 million inhabitants. The collective effective dose for 2010 resulted from the study is 152 mSv per 1000 inhabitants. Conclusions: Medical practitioners must select the best medical imaging investigation for each clinical case taking into account the importance of keeping the patient dose as low as possible. Medical physicists should be strongly involved in the establishing of the dosimetry procedures. (author)

  15. Student Perceptions of Online Radiologic Science Courses.

    Science.gov (United States)

    Papillion, Erika; Aaron, Laura

    2017-03-01

    To evaluate student perceptions of the effectiveness of online radiologic science courses by examining various learning activities and course characteristics experienced in the online learning environment. A researcher-designed electronic survey was used to obtain results from students enrolled in the clinical portion of a radiologic science program that offers online courses. The survey consisted of elements associated with demographics, experience, and perceptions related to online radiologic science courses. Surveys were sent to 35 program directors of Joint Review Committee on Education in Radiologic Technology-accredited associate and bachelor's degree programs with requests to share the survey with students. The 38 students who participated in the survey identified 4 course characteristics most important for effective online radiologic science courses: a well-organized course, timely instructor feedback, a variety of learning activities, and informative documents, such as course syllabus, calendar, and rubrics. Learner satisfaction is a successful indicator of engagement in online courses. Descriptive statistical analysis indicated that elements related to the instructor's role is one of the most important components of effectiveness in online radiologic science courses. This role includes providing an organized course with informative documents, a variety of learning activities, and timely feedback and communication. Although online courses should provide many meaningful learning activities that appeal to a wide range of learning styles, the nature of the course affects the types of learning activities used and therefore could decrease the ability to vary learning activities. ©2017 American Society of Radiologic Technologists.

  16. Swiss nation-wide survey on radiation doses in diagnostic radiology

    International Nuclear Information System (INIS)

    Aroua, A.; Valley, J.F.; Vader, J.-P.; Burnand, B.

    2001-01-01

    A nation-wide survey on radiation doses in diagnostic radiology was conducted in Switzerland in 1998-1999. More than 250 types of examinations were considered, covering conventional and interventional radiology, angiography, CT, mammography, osteodensitometry, conventional tomography and dental radiology. This survey aimed at establishing the collective radiological impact of radiodiagnostics on the Swiss population. The methodology of the survey is described. The examination frequencies and integral dosimetric results associated with diagnostic radiology in Switzerland are presented. (author)

  17. Radiology Teaching Files on the Internet

    International Nuclear Information System (INIS)

    Lim, Eun Chung; Kim, Eun Kyung

    1996-01-01

    There is increasing attention about radiology teaching files on the Internet in the field of diagnostic radiology. The purpose of this study was to aid in the creation of new radiology teaching file by analysing the present radiology teaching file sites on the Internet with many aspects and evaluating images on those sites, using Macintosh II ci compute r, 28.8kbps TelePort Fax/Modem, Netscape Navigator 2.0 software. The results were as follow : 1. Analysis of radiology teaching file sites (1) Country distribution was the highest in USA (57.5%). (2) Average number of cases was 186 cases and radiology teaching file sites with search engine were 9 sites (22.5%). (3) At the method of case arrangement, anatomic area type and diagnosis type were found at the 10 sites (25%) each, question and answer type was found at the 9 sites (22.5%). (4) Radiology teaching file sites with oro-maxillofacial disorder were 9 sites (22.5%). (5) At the image format, GIF format was found at the 14 sites (35%), and JPEG format found at the 14 sites (35%). (6) Created year was the highest in 1995 (43.7%). (7) Continuing case upload was found at the 35 sites (87.5%). 2. Evaluation of images on the radiology teaching files (1) Average file size of GIF format (71 Kbyte) was greater than that of JPEG format (24 Kbyte). (P<0.001) (2) Image quality of GIF format was better than that of JPEG format. (P<0.001)

  18. Physics of Radiology

    CERN Document Server

    Johns, Harold Elford

    1983-01-01

    Authority, comprehensivity and a consummate manner of presentation have been hallmarks of The Physics of Radiology since it first saw publication some three decades past. This Fourth Edition adheres to that tradition but again updates the context. It thoroughly integrates ideas recently advanced and practices lately effected. Students and professionals alike will continue to view it, in essence, as the bible of radiological physics.

  19. Radiological concept of spondylodiscitis

    Energy Technology Data Exchange (ETDEWEB)

    Lingg, G.; Karbowski, A.

    1985-07-01

    The destructive discovertebral lesions of ankylosing spondylitis are discussed. Their evaluation in the literature is compared with the newer histologic and radiologic results. The X-ray findings in rheumatoid arthritis are also presented. Using radiographs from 16 of our own patients suffering from ankylosing spondylitis and 5 with rheumatoid arthritis, the analyse the radiological appearance inquestion.

  20. Medical Ethics in Radiology

    International Nuclear Information System (INIS)

    Kim, Kyung Won; Park, Jae Hyung; Yoon, Soon Ho

    2010-01-01

    According to the recent developments in radiological techniques, the role of radiology in the clinical management of patients is ever increasing and in turn, so is the importance of radiology in patient management. Thus far, there have been few open discussions about medical ethics related to radiology in Korea. Hence, concern about medical ethics as an essential field of radiology should be part of an improved resident training program and patient management. The categories of medical ethics related with radiology are ethics in the radiological management of patient, the relationship of radiologists with other medical professionals or companies, the hazard level of radiation for patients and radiologists, quality assurance of image products and modalities, research ethics, and other ethics issues related to teleradiology and fusion imaging. In order to achieve the goal of respectful progress in radiology as well as minimizing any adverse reaction from other medical professions or society, we should establish a strong basis of medical ethics through the continuous concern and self education

  1. Radiological concept of spondylodiscitis

    International Nuclear Information System (INIS)

    Lingg, G.; Karbowski, A.

    1985-01-01

    The destructive discovertebral lesions of ankylosing spondylitis are discussed. Their evaluation in the literature is compared with the newer histologic and radiologic results. The X-ray findings in rheumatoid arthritis are also presented. Using radiographs from 16 of our own patients suffering from ankylosing spondylitis and 5 with rheumatoid arthritis, the analyse the radiological appearance inquestion. (orig.) [de

  2. Radiological evaluation of familial osteopetrosis

    International Nuclear Information System (INIS)

    Moon, Moo Chang; Kang, Shin Wha; Won, Jong Jin; Rhee, Song Joo; Choi, Ki Chul

    1980-01-01

    Authors found 16 patients with benign osteopetrosis out of 62 members of 4 families and analysed these patients clinically, radiologically, hematologically and biochemically at the Department of Radiology, Jeonbug National University Hospital from October 1977 to June 1980. The results are as follows; 1. We obtained that there is evidence of familial tendency in developing osteopetrosis because of the fact that 15 patients (94%) developed in 3 families and more than 2 patients in each family. In genetical point of view we suspected dominant trait of inheritance and could rule out recessive trait because patients were found in successive generations except for one family. There were no consangulneous marriages among the parents of these patients. 2. The majority of patients were adolescent or adult above 10 years of age when the disease was diagnosed. The incidence was identical in both sex. 3. No clinical symptoms and historical abnormalities were found in 11 patients (69%) and 5 patients (31%) showed only mild symptoms. Among 5 patients with clinical symptoms 3 patients showed pathologic fractures. In all 3 patients, fractures occurred only by mild trauma and affected sites were tubular bones and they were transverse type. 4. There were no specific relationship between ABO types and Rh reactions in developing osteopetrosis and no specific findings in hematological, biochemical and routine urinalysis. 5. The only diagnostic finding in most patients were the typical and specific radiological findings

  3. Understanding Mechanisms of Radiological Contamination

    Energy Technology Data Exchange (ETDEWEB)

    Rick Demmer; John Drake; Ryan James, PhD

    2014-03-01

    Over the last 50 years, the study of radiological contamination and decontamination has expanded significantly. This paper addresses the mechanisms of radiological contamination that have been reported and then discusses which methods have recently been used during performance testing of several different decontamination technologies. About twenty years ago the Idaho Nuclear Technology Engineering Center (INTEC) at the INL began a search for decontamination processes which could minimize secondary waste. In order to test the effectiveness of these decontamination technologies, a new simulated contamination, termed SIMCON, was developed. SIMCON was designed to replicate the types of contamination found on stainless steel, spent fuel processing equipment. Ten years later, the INL began research into methods for simulating urban contamination resulting from a radiological dispersal device (RDD). This work was sponsored by the Defense Advanced Research Projects Agency (DARPA) and included the initial development an aqueous application of contaminant to substrate. Since 2007, research sponsored by the US Environmental Protection Agency (EPA) has advanced that effort and led to the development of a contamination method that simulates particulate fallout from an Improvised Nuclear Device (IND). The IND method diverges from previous efforts to create tenacious contamination by simulating a reproducible “loose” contamination. Examining these different types of contamination (and subsequent decontamination processes), which have included several different radionuclides and substrates, sheds light on contamination processes that occur throughout the nuclear industry and in the urban environment.

  4. Dose assessment in radiological accidents

    International Nuclear Information System (INIS)

    Donkor, S.

    2013-04-01

    The applications of ionizing radiation bring many benefits to humankind, ranging from power generation to uses in medicine, industry and agriculture. Facilities that use radiation source require special care in the design and operation of equipment to prevent radiation injury to workers or to the public. Despite considerable development of radiation safety, radiation accidents do happen. The purpose of this study is therefore to discuss how to assess doses to people who will be exposed to a range of internal and external radiation sources in the event of radiological accidents. This will go a long way to complement their medical assessment thereby helping to plan their treatment. Three radiological accidents were reviewed to learn about the causes of those accidents and the recommendations that were put in place to prevent recurrence of such accidents. Various types of dose assessment methods were discussed.(au)

  5. Epilepsy and radiological investigations

    International Nuclear Information System (INIS)

    Tomberg, T.

    2005-01-01

    Epilepsy is a heterogenous group of disorders with multiple causes. Clinical management of epilepsy patients requires knowledge of seizure syndromes, causes, and imaging features. The aim of radiological investigations is to recognize the underlying cause of epilepsy. The main indications for neuroimaging studies are partial and secondarily generalized seizures, patients with neurological signs and intractable seizures, and patients with focal signs on EEG. Partial seizures of any type are more likely to be associated with a focus that may be identified on neuroimaging. MRI is the method of choice for evaluating structural abnormalities of the brain. High resolution MRI and dedicated imaging technique are needed for detection of subtle pathological changes as cortical dysplasias and temporal medial sclerosis. Other lesions that may be detected include neoplasms, vascular malformations, destructive lesions following brain injury, stroke, infection, etc. CT continues to be the technique for the investigation of patients with seizures under certain conditions. New techniques such as functional MRI, MR spectroscopy, SPECT, receptor PET and magnetic source imaging are becoming clinical tools for improving diagnosis [et

  6. Laenderyggens degeneration og radiologi

    DEFF Research Database (Denmark)

    Jacobsen, Steffen; Gosvig, Kasper Kjaerulf; Sonne-Holm, Stig

    2006-01-01

    and significant relationships between radiological findings and subjective symptoms have both been notoriously difficult to identify. The lack of consensus on clinical criteria and radiological definitions has hampered the undertaking of properly executed epidemiological studies. The natural history of LBP......Low back pain (LBP) is one of the most common conditions, and at the same time one of the most complex nosological entities. The lifetime prevalence is approximately 80%, and radiological features of lumbar degeneration are almost universal in adults. The individual risk factors for LBP...

  7. Marketing a Radiology Practice.

    Science.gov (United States)

    Levin, David C; Rao, Vijay M; Flanders, Adam E; Sundaram, Baskaran; Colarossi, Margaret

    2016-10-01

    In addition to being a profession, the practice of radiology is a business, and marketing is an important part of that business. There are many facets to marketing a radiology practice. The authors present a number of ideas on how to go about doing this. Some marketing methods can be directed to both patients and referring physicians. Others should be directed just to patients, while still others should be directed just to referring physicians. Aside from marketing, many of them provide value to both target audiences. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  8. Referral expectations of radiology

    International Nuclear Information System (INIS)

    Smith, W.L.; Altmaier, E.; Berberoglu, L.; Morris, K.

    1989-01-01

    The expectation of the referring physician are key to developing a successful practice in radiology. Structured interviews with 17 clinicians in both community care and academic practice documented that accuracy of the radiologic report was the single most important factor in clinician satisfaction. Data intercorrelation showed that accuracy of report correlated with frequency of referral (r = .49). Overall satisfaction of the referring physician with radiology correlated with accuracy (r = .69), patient satisfaction (r = .36), and efficiency in archiving (r = .42). These data may be weighted by departmental managers to allocate resources for improving referring physician satisfaction

  9. Radiological examinations of complications after total hip replacement Pt. 1

    International Nuclear Information System (INIS)

    Luzsa, Gyoergy; Reti, Peter; Lakatos, Jozsef

    1985-01-01

    The radiological findings of complications after total hip replacement are summarized by analizing the data of control examinations of the operated patients at the National Institute for Rheumatology and Physiotherapy. In this first part the types of total hip replacements and the radiological methods (native x-ray, fistulography, arthrography, needle biopsy and scintigraphy using sup(99m)Tc isotope) are surveyed, and the radiological findings of the septic surgical complications are described. (author)

  10. Radiological terrorism and Australia's response

    International Nuclear Information System (INIS)

    Patterson, D.

    2003-01-01

    A terrorist attack in Australia involving dispersal of radioactive material is different from conventional terrorist attacks involving explosives. The trauma experienced by victims during an explosive incident includes cuts, broken limbs, burns and shock. When an explosive device involving radioactive materials is involved, there are a number of additional characteristics including the contamination of victims and the surrounding area and the potential requirement for ongoing monitoring and decontamination. Response actions may require additional complex emergency response measures including immediate protective actions to protect those potentially exposed to contamination, mass casualty care, and public and mental health. There are concerns that terrorist organizations are showing increasing interest in acquiring radiological material that could be used with explosive. A dirty bomb or technically known as a radiological dispersal device (RDD) is a device designed to spread radioactive contamination over a wide area and pose a health and safety threat to those within the contaminated area. The radioactive material could be in the form of a large chunk of material, fine powder, a liquid mist, or a gas. The material may also be spread in other ways, such as by simply emptying a container over the desired area. As RDD's do not require large amounts of explosives, there is unlikely to be a large numbers of casualties, however the areas contaminated by the radiological material may cause immediate and long term health risks to those exposed. An RDD is a weapon of Mass Disruption rather than destruction. While the likelihood of RDD's being employed by terrorist in Australia is still considered remote, Australia's emergency response organizations are developing plans to ensure a rapid and comprehensive response occurs should such an event occur in this country, The presentation will outline Australia's response arrangements at the local/state level and the type of federal

  11. Pediatric radiology for medical-technical radiology assistants/radiologists

    International Nuclear Information System (INIS)

    Oppelt, Birgit

    2010-01-01

    The book on pediatric radiology includes the following chapter: differences between adults and children; psycho-social aspects concerning the patient child in radiology; relevant radiation doses in radiology; help for self-help: simple phantoms for image quality estimation in pediatric radiology; general information; immobilization of the patient; pediatric features for radiological settings; traumatology; contrast agents; biomedical radiography; computerized tomography; NMR imaging; diagnostic ultrasonography; handling of stress practical recommendations; medical displays.

  12. Laenderyggens degeneration og radiologi

    DEFF Research Database (Denmark)

    Jacobsen, Steffen; Gosvig, Kasper Kjaerulf; Sonne-Holm, Stig

    2006-01-01

    Low back pain (LBP) is one of the most common conditions, and at the same time one of the most complex nosological entities. The lifetime prevalence is approximately 80%, and radiological features of lumbar degeneration are almost universal in adults. The individual risk factors for LBP and signi......Low back pain (LBP) is one of the most common conditions, and at the same time one of the most complex nosological entities. The lifetime prevalence is approximately 80%, and radiological features of lumbar degeneration are almost universal in adults. The individual risk factors for LBP...... and significant relationships between radiological findings and subjective symptoms have both been notoriously difficult to identify. The lack of consensus on clinical criteria and radiological definitions has hampered the undertaking of properly executed epidemiological studies. The natural history of LBP...

  13. SA Journal of Radiology

    African Journals Online (AJOL)

    SA Journal of Radiology. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 9, No 2 (2005) >. Log in or Register to get access to full text downloads.

  14. SA Journal of Radiology

    African Journals Online (AJOL)

    SA Journal of Radiology. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 17, No 1 (2013) >. Log in or Register to get access to full text downloads.

  15. Radiological assessment and optimization

    International Nuclear Information System (INIS)

    Zeevaert, T.; Sohier, A.

    1998-01-01

    The objectives of SCK-CEN's research in the field of radiological assessment and optimization are (1) to implement ALARA principles in activities with radiological consequences; (2) to develop methodologies for radiological optimization in decision-aiding; (3) to improve methods to assess in real time the radiological hazards in the environment in case of an accident; (4) to develop methods and programmes to assist decision-makers during a nuclear emergency; (5) to support the policy of radioactive waste management authorities in the field of radiation protection; (6) to investigate computer codes in the area of multi criteria analysis; (7) to organise courses on off-site emergency response to nuclear accidents. Main achievements in these areas for 1997 are summarised

  16. American College of Radiology

    Science.gov (United States)

    ... 2017 Meeting & Course Calendar Where ACR Exhibits ACR Data Science Institute Structures AI Advances DSI framework to help ... Announcements Upcoming Meetings 11/16/2017 The ACR Data Science Institute™ Structures Artificial Intelligence Development to Optimize Radiology ...

  17. Radiology Architecture Project Primer.

    Science.gov (United States)

    Sze, Raymond W; Hogan, Laurie; Teshima, Satoshi; Davidson, Scott

    2017-12-19

    The rapid pace of technologic advancement and increasing expectations for patient- and family-friendly environments make it common for radiology leaders to be involved in imaging remodel and construction projects. Most radiologists and business directors lack formal training in architectural and construction processes but are expected to play significant and often leading roles in all phases of an imaging construction project. Avoidable mistakes can result in significant increased costs and scheduling delays; knowledgeable participation and communication can result in a final product that enhances staff workflow and morale and improves patient care and experience. This article presents practical guidelines for preparing for and leading a new imaging architectural and construction project. We share principles derived from the radiology and nonradiology literature and our own experience over the past decade completely remodeling a large pediatric radiology department and building a full-service outpatient imaging center. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  18. Radiological considerations for decommissioning

    International Nuclear Information System (INIS)

    Adler, J.J.

    1993-01-01

    It has been said, by those uninitiated to decommissioning work, that radiological considerations required for decommissioning are the same as those for an operating facility. In reality, nothing could be further from the truth. The act of decommissioning can be likened to cutting off a tree limb while sitting on it. This paper discusses some of the unique radiological aspects that are associated with implementing a decommissioning health physics program. There are physical constraints that may cause major differences between a normal operational and a decommissioning health physics program. Throughout the decommissioning process, the installed equipment and services that were needed to support an operational program are constantly being removed or may already be disabled due to the age of the facility. Those affecting radiological protection programs typically would include radiation shielding, ventilation systems, breathing air supply for respiratory protection, and radiological monitoring systems

  19. Radiology and the law

    International Nuclear Information System (INIS)

    Bundy, A.L.

    1988-01-01

    This book contains 12 chapters. Some of the chapter titles are: The Law of Medical Malpractice: An Overview; The Radiologist as Defendant; The Radiologist as an Expert Witness; The Missed Diagnosis; Legalities of the Radiograph; and Angiography and Interventional Radiology

  20. Radiology capital asset management.

    Science.gov (United States)

    Wagener, G N; Pridlides, A J

    1993-01-01

    Radiology administrators are expected not only to take on the ultimate accountability for meeting the needs and challenges of present day-to-day operations, but also to plan for the future. Computer Aided Facility Management (CAFM), as a tool, enables radiology managers to obtain up-to-date data to manage their services. Using Autocad on a unix-based minicomputer as the graphical base generator and integrating information from a MUMPS-based minicomputer, the CAFM process can define areas to be studied for productivity and life cycle costs. From an analysis of radiology service, management was able to make solid judgement calls for equipment replacement and facility project renovation to effectively manage radiology resources.

  1. Ergonomics in radiology

    Energy Technology Data Exchange (ETDEWEB)

    Goyal, N. [Department of Radiology, University Hospital of Wales, Cardiff (United Kingdom)], E-mail: nimitgoyal@doctors.org.uk; Jain, N.; Rachapalli, V. [Department of Radiology, University Hospital of Wales, Cardiff (United Kingdom)

    2009-02-15

    The use of computers is increasing in every field of medicine, especially radiology. Filmless radiology departments, speech recognition software, electronic request forms and teleradiology are some of the recent developments that have substantially increased the amount of time a radiologist spends in front of a computer monitor. Computers are also needed for searching literature on the internet, communicating via e-mails, and preparing for lectures and presentations. It is well known that regular computer users can suffer musculoskeletal injuries due to repetitive stress. The role of ergonomics in radiology is to ensure that working conditions are optimized in order to avoid injury and fatigue. Adequate workplace ergonomics can go a long way in increasing productivity, efficiency, and job satisfaction. We review the current literature pertaining to the role of ergonomics in modern-day radiology especially with the development of picture archiving and communication systems (PACS) workstations.

  2. Radiological assessment and optimization

    Energy Technology Data Exchange (ETDEWEB)

    Zeevaert, T.; Sohier, A

    1998-07-01

    The objectives of SCK-CEN's research in the field of radiological assessment and optimization are (1) to implement ALARA principles in activities with radiological consequences; (2) to develop methodologies for radiological optimization in decision-aiding; (3) to improve methods to assess in real time the radiological hazards in the environment in case of an accident; (4) to develop methods and programmes to assist decision-makers during a nuclear emergency; (5) to support the policy of radioactive waste management authorities in the field of radiation protection; (6) to investigate computer codes in the area of multi criteria analysis; (7) to organise courses on off-site emergency response to nuclear accidents. Main achievements in these areas for 1997 are summarised.

  3. Ergonomics in radiology

    International Nuclear Information System (INIS)

    Goyal, N.; Jain, N.; Rachapalli, V.

    2009-01-01

    The use of computers is increasing in every field of medicine, especially radiology. Filmless radiology departments, speech recognition software, electronic request forms and teleradiology are some of the recent developments that have substantially increased the amount of time a radiologist spends in front of a computer monitor. Computers are also needed for searching literature on the internet, communicating via e-mails, and preparing for lectures and presentations. It is well known that regular computer users can suffer musculoskeletal injuries due to repetitive stress. The role of ergonomics in radiology is to ensure that working conditions are optimized in order to avoid injury and fatigue. Adequate workplace ergonomics can go a long way in increasing productivity, efficiency, and job satisfaction. We review the current literature pertaining to the role of ergonomics in modern-day radiology especially with the development of picture archiving and communication systems (PACS) workstations

  4. Radiological accidents, scenarios, planning and answers

    International Nuclear Information System (INIS)

    Solis Delgado, Alexander.

    2008-01-01

    Radiological accidents, scenarios and the importance of a good planning to prevent and control these types of accidents are presented. The radiation can be only one of the risks in an accident, most of dominant radiological risks are not radiological (fire, toxic gases, etc.). The common causes of radiological accidents, potential risks such as external irradiation, internal contamination and the environment pollution are highlighted. In addition, why accidents happen and how they evolve is explained. It describes some incidents with the radiation occurred in Costa Rica from 1993 to 2007. The coordination of emergency management in Costa Rica in relation to a radiological accident, and some mechanisms of action that have practiced in other places are focuses. Among the final considerations are the need to finalize the national plan for radiological emergencies as a tool of empowerment for the teams of emergency care and the availability of information. Likewise the processes of communication, coordination and cooperation to avoid chaos, confusion and crisis are also highlighted [es

  5. Radiologic science for technologists

    International Nuclear Information System (INIS)

    Bushong, S.C.

    1988-01-01

    This book provides in-depth coverage of physics, biology and protection for the radiologic technology student. It presents a significant portion of all of the science required of radiologic technology students under one cover. Chapter content reflects a readable and practical organization with outlines listed on the first page of each chapter and sample problems at the end. New to this edition are: new and expanded sections on radiation techniques, digital imaging, and magnetic resonance imaging and ultrasound

  6. Radiological protection act, 1991

    International Nuclear Information System (INIS)

    1991-01-01

    This Act provides for the establishment of the Radiological Protection Institute of Ireland and dissolves An Bord Fuinnimh Nuicleigh (the Board), transferring its assets and liabilities to the Institute. It sets out a range of radiation protection measures to be taken by various Ministers in the event of a radiological emergency and gives effect at national level to the Assistance Convention, the Early Notification Convention and the Physical Protection Convention. The Institute is the competent Irish authority for the three Conventions. (NEA) [fr

  7. Radiological clerkships as a critical curriculum component in radiology education

    International Nuclear Information System (INIS)

    Kourdioukova, Elena V.; Verstraete, Koenraad L.; Valcke, Martin

    2011-01-01

    Objective: The aim of this research was to explore the perceived value of clinical clerkships in the radiology curriculum as well as the impact of radiology clerkship on students' beliefs about the profession of radiology as a whole and as a career. Methods: This study is a sequel to a previous survey in which student perceptions about radiology curriculum components were investigated. The present study focuses on a further analysis of a subsection in this study, based on 14 statements about radiology clerkship and two statements about radiology as a career. Results: Perceived usefulness of the aspects of radiology clerkship as 'radiology examination', 'skills development' and 'diagnosis focus' were awarded the highest scores. The predict value of the subscale 'radiology examination' on the level of performance was very high (adjusted R 2 = 0.19, p < .001). Conclusion: Students expressed highly favorable evaluation of clerkship as a learning environment to learn to order and to interpret imaging studies as well as an unique possibility to attend various radiological examinations and to access to specific radiology software systems, as well as to get a better view on radiology and to improve image interpretation skills. This positive attitude towards clerkship is closely tied to students' beliefs about the profession of radiology as a whole. These aspects of dedicated radiology clerkship are crucial for effective and high-quality education as well as for the choice of radiology as a career.

  8. Diagnostic and interventional radiology

    Energy Technology Data Exchange (ETDEWEB)

    Vogl, Thomas J. [Klinikum der Johann Wolfgang Goethe-Universitaet, Frankfurt am Main (Germany). Inst. fuer Diagnostische und Interventionelle Radiologie; Reith, Wolfgang [Universitaetsklinikum des Saarlandes, Homburg/Saar (Germany). Klinik fuer Diagnostische und Interventionelle Neuroradiologie; Rummeny, Ernst J. (ed.) [Technische Univ. Muenchen Klinikum rechts der Isar, Muenchen (Germany). Inst. fuer Radiologie

    2016-08-01

    This exceptional book covers all aspects of diagnostic and interventional radiology within one volume, at a level appropriate for the specialist. From the basics through diagnosis to intervention: the reader will find a complete overview of all areas of radiology. The clear, uniform structure, with chapters organized according to organ system, facilitates the rapid retrieval of information. Features include: Presentation of the normal radiological anatomy Classification of the different imaging procedures according to their diagnostic relevance Imaging diagnosis with many reference images Precise description of the interventional options The inclusion of many instructive aids will be of particular value to novices in decision making: Important take home messages and summaries of key radiological findings smooth the path through the jungle of facts Numerous tables on differential diagnosis and typical findings in the most common diseases offer a rapid overview and orientation Diagnostic flow charts outline the sequence of diagnostic evaluation All standard procedures within the field of interventional radiology are presented in a clinically relevant and readily understandable way, with an abundance of illustrations. This is a textbook, atlas, and reference in one: with more than 2500 images for comparison with the reader's own findings. This comprehensive and totally up-to-date book provides a superb overview of everything that the radiology specialist of today needs to know.

  9. Rethinking radiology informatics.

    Science.gov (United States)

    Kohli, Marc; Dreyer, Keith J; Geis, J Raymond

    2015-04-01

    Informatics innovations of the past 30 years have improved radiology quality and efficiency immensely. Radiologists are groundbreaking leaders in clinical information technology (IT), and often radiologists and imaging informaticists created, specified, and implemented these technologies, while also carrying the ongoing burdens of training, maintenance, support, and operation of these IT solutions. Being pioneers of clinical IT had advantages of local radiology control and radiology-centric products and services. As health care businesses become more clinically IT savvy, however, they are standardizing IT products and procedures across the enterprise, resulting in the loss of radiologists' local control and flexibility. Although this inevitable consequence may provide new opportunities in the long run, several questions arise. What will happen to the informatics expertise within the radiology domain? Will radiology's current and future concerns be heard and their needs addressed? What should radiologists do to understand, obtain, and use informatics products to maximize efficiency and provide the most value and quality for patients and the greater health care community? This article will propose some insights and considerations as we rethink radiology informatics.

  10. Choledocal cyst: the radiological evaluation

    International Nuclear Information System (INIS)

    Choi, J. K.; Jeon, H. J.; Kim, J. H.; Cha, I. H.; Chung, K. B.; Suh, W. H.

    1986-01-01

    The authors have experienced 11 cases of radiologically or surgically proven choledochal cyst during the period of 4 years, and reviewed radiological and clinical features. The results are as follows: 1. The sex ratio of female to male was 2.7:1. Four were children under 10, and seven were adults over 30 years of age. 2. The most frequent symptom was abdominal pain (45%), which was followed by jaundice (36%) and palpable abdominal mass (27%). 3. Morphologically, 4 cases were type A of Kimura classification (segmental cystic dilatation involving common bile duct; pure type A of Alonso-Lej). The other 7 patients showed some dilatation in the intrahepatic bile ducts as well; i.e. type A' of Kimura classification. 4. The union between the common bile and main pancreatic ducts was at a high position in 5 of 6 patients in whom both ducts were adequately opacified with ERCP, PTC and/or operative cholangiography, forming an abnormally long common channel. 5. Associated choledocholithiasis was reported with increasing frequency. We experienced 4 cases (36.3%) which had multiple stones in the choledochal cyst. 6. Adenocarcinoma were combined in 2 patients; both were females of 38 and 45 years of age. 7. Ten cases were correctly diagnosed preoperatively with ultrasonography. Specific ultrasound diagnosis of a choledochal cyst could be made by identifying two bile ducts entering into the large cyst which was separated from the gallbladder and extended deep onto the portal hepatic. Dilatation of intrahepatic ducts could be easily identified.

  11. Radiology and injury in sport

    International Nuclear Information System (INIS)

    Bowerman, J.W.

    1985-01-01

    The material available was grouped according to body regions and sport types. The first part contains data on radiography of the injured parts of the body and is intended to be a guide in the radiographic part of the diagnosis and treatment of the injured person. It also contains data on diagnostic pitfalls and recommendations for a comprehensive clarification of X-ray findings after an injury. The second part describes the sport types and hazards. Where possible, the injuries were documented by case studies and literature on the types of injury. The third part contains a collection of X-ray pictures with examples of various injuries. The presentation corresponds to the one of an up-to-date major text book on skeleton radiology. The pictures are presented as a series of problems for the reader to test his/her own diagnostic capabilities before he/she will read the solution to each example. With 411 figs [de

  12. The Future of Radiology

    Directory of Open Access Journals (Sweden)

    Alexander R. Margulis

    2011-07-01

    Full Text Available It has been my good fortune to live and practice radiology during a long period of momentous change – to see the transformation of the discipline from a supportive service into a mainstream, essential branch of clinical medicine. I remember wearing red goggles to adapt my vision before performing fluoroscopy; observing the horrible, now thankfully obsolete, practice of ventriculography, which was considered advanced neuroradiology; and performing other, now rarely prescribed procedures, such as double-contrast barium enemas and intravenous pyelography. Witnessing the beginnings of interventional radiology, I suggested its name in an editorial. I also had the good fortune to see the introduction of computed tomography (CT and a technology first known as nuclear magnetic resonance imaging. Together with fellow members of a committee of the American College of Radiology and editors of prestigious radiological journals, I took part in changing the name of the latter modality to MRI, freeing it from threatening implications. Looking back on these experiences, one lesson stands out above all: Innovation and transformation never cease. Looking forward, it is clear that radiology, along with the rest of medicine, is now undergoing further momentous changes that will affect the future of all those already practicing as well as those yet to start their careers.

  13. Anesthesia for radiologic procedures

    International Nuclear Information System (INIS)

    Forestner, J.E.

    1987-01-01

    Anesthetic techniques for neurodiagnostic studies and radiation therapy have been recently reviewed, but anesthetic involvement in thoracic and abdominal radiology has received little attention. Patient reactions to radiologic contrast media may be of concern to the anesthesiologist, who is often responsible for injecting these agents during diagnostic procedures, and thus is included in this discussion. Finally, the difficulties of administering anesthesia for magnetic resonance imaging (MRI) scans are outlined, in an effort to help anesthesiologist to anticipate problems with this new technologic development. Although there are very few indications for the use of general anesthesia for diagnostic radiologic studies in adults, most procedures performed with children, the mentally retarded, or the combative adult require either heavy sedation or general anesthesia. In selecting an anesthetic technique for a specific procedure, both the patient's disease process and the requirements of the radiologist must be carefully balanced

  14. KAERI Radiological Emergency Plan

    Energy Technology Data Exchange (ETDEWEB)

    Oui, Khang Byung; Lee, Goan Yup; Lee, Jong Tai

    2004-06-15

    The Radiological Emergency Plan of KAERI is to draw up based on the Civil Defence Law, the Disaster and Safety Management Law, the Act of Physical Protection and Emergency Preparedness in Nuclear Facilities, the National Radiological Emergency Plan, and made reference to the DOE order and IAEA TECDOC etc. This plan describes the preventive measures, emergency response, re-entry and restoration to ensure adequate response capabilities to the nuclear accidents which would cause a significant risk to the KAERI staffs and the public near to the site. And the Operation of Radiological Emergency Management System is included in this plan to test the effectiveness of this plan and to improve the response capabilities of the emergency staffs against nuclear accidents.

  15. Radiologic protection in pediatric radiology: ICRP recommendations

    International Nuclear Information System (INIS)

    Sanchez, Ramon; Khong, Pek-Lan; Ringertz, Hans

    2013-01-01

    ICRP has provided an updated overview of radiation protection principles in pediatric radiology. The authors recommend that staff, radiologists, medical physicists and vendors involved in pediatric radiology read this document. For conventional radiography, the report gives advice on patient positioning, immobilization, shielding and appropriate exposure conditions. It describes extensively the use of pulsed fluoroscopy, the importance of limiting fluoroscopy time, and how shielding and geometry must be used to avoid unnecessary radiation to the patient and operator. Furthermore, the use of fluoroscopy in interventional procedures with emphasis on dose reduction to patients and staff is discussed in light of the increasing frequency, complexity and length ofthe procedures. CT is the main reason that medical imaging in several developed countries is the highest annual per capita effective radiation dose from man-made sources. The ICRP report gives extensive descriptions of how CT protocols can be optimized to minimize radiation exposure in pediatric patients. The importance of balancing image quality with acceptable noise in pediatric imaging and the controversies regarding the use of protective shielding in CT are also discussed.

  16. Radiologic protection in pediatric radiology: ICRP recommendations

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez, Ramon [University of Michigan Hospital, Department of Radiology, C. S. Mott Children' s Hospital, Ann Arbor, MI (United States); Khong, Pek-Lan [The University of Hong Kong, Department of Diagnostic Radiology, Queen Mary Hospital, Hong Kong (China); Ringertz, Hans [Linkoeping University Hospital, Center for Medical Image Science and Visualization, Linkoeping (Sweden)

    2013-08-15

    ICRP has provided an updated overview of radiation protection principles in pediatric radiology. The authors recommend that staff, radiologists, medical physicists and vendors involved in pediatric radiology read this document. For conventional radiography, the report gives advice on patient positioning, immobilization, shielding and appropriate exposure conditions. It describes extensively the use of pulsed fluoroscopy, the importance of limiting fluoroscopy time, and how shielding and geometry must be used to avoid unnecessary radiation to the patient and operator. Furthermore, the use of fluoroscopy in interventional procedures with emphasis on dose reduction to patients and staff is discussed in light of the increasing frequency, complexity and length ofthe procedures. CT is the main reason that medical imaging in several developed countries is the highest annual per capita effective radiation dose from man-made sources. The ICRP report gives extensive descriptions of how CT protocols can be optimized to minimize radiation exposure in pediatric patients. The importance of balancing image quality with acceptable noise in pediatric imaging and the controversies regarding the use of protective shielding in CT are also discussed.

  17. Results of a survey by the European Society of Radiology (ESR): undergraduate radiology education in Europe-influences of a modern teaching approach.

    Science.gov (United States)

    Oris, Elena; Verstraete, Koenraad; Valcke, Martin

    2012-04-01

    The purpose of the present study is to determine in what way a conventional versus a modern medical curriculum influences teaching delivery in formal radiology education. A web-based questionnaire was distributed by the ESR to radiology teaching staff from 93 European teaching institutions. Early exposure to radiology in pre-clinical years is typically reported in institutions with a modern curriculum. The average number of teaching hours related to radiology is similar in both curriculum types (60 h). Radiology in modern curricula is mainly taught by radiologists, radiology trainees (50%), radiographers (20%) or clinicians (17%). Mandatory clerkships are pertinent to modern curricula (55% vs. 41% conventional curriculum), which start in the first (13% vs. 4% conventional curriculum) or second year of the training (9% vs. 2% conventional curriculum). The common core in both curricula consists of radiology examinations, to work with radiology teaching files, to attend radiology conferences, and to participate in multidisciplinary meetings. The influence of a modern curriculum on the formal radiology teaching is visible in terms of earlier exposure to radiology, involvement of a wider range of staff grades and range of profession involved in teaching, and radiology clerkships with more active and integrated tasks. • This study looks at differences in the nature of formal radiology teaching.

  18. Radiology's value chain.

    Science.gov (United States)

    Enzmann, Dieter R

    2012-04-01

    A diagnostic radiology value chain is constructed to define its main components, all of which are vulnerable to change, because digitization has caused disaggregation of the chain. Some components afford opportunities to improve productivity, some add value, while some face outsourcing to lower labor cost and to information technology substitutes, raising commoditization risks. Digital image information, because it can be competitive at smaller economies of scale, allows faster, differential rates of technological innovation of components, initiating a centralization-to-decentralization technology trend. Digitization, having triggered disaggregation of radiology's professional service model, may soon usher in an information business model. This means moving from a mind-set of "reading images" to an orientation of creating and organizing information for greater accuracy, faster speed, and lower cost in medical decision making. Information businesses view value chain investments differently than do small professional services. In the former model, producing a better business product will extend image interpretation beyond a radiologist's personal fund of knowledge to encompass expanding external imaging databases. A follow-on expansion with integration of image and molecular information into a report will offer new value in medical decision making. Improved interpretation plus new integration will enrich and diversify radiology's key service products, the report and consultation. A more robust, information-rich report derived from a "systems" and "computational" radiology approach will be facilitated by a transition from a professional service to an information business. Under health care reform, radiology will transition its emphasis from volume to greater value. Radiology's future brightens with the adoption of a philosophy of offering information rather than "reads" for decision making. Staunchly defending the status quo via turf wars is unlikely to constitute a

  19. Radiological incidents in radiotherapy

    International Nuclear Information System (INIS)

    Hobzova, L.; Novotny, J.

    2008-01-01

    In many countries a reporting system of radiological incidents to national regulatory body exists and providers of radiotherapy treatment are obliged to report all major and/or in some countries all incidents occurring in institution. State Office for Nuclear Safety (SONS) is providing a systematic guidance for radiotherapy departments from 1997 by requiring inclusion of radiation safety problems into Quality assurance manual, which is the basic document for obtaining a license of SONS for handling with sources of ionizing radiation. For that purpose SONS also issued the recommendation 'Introduction of QA system for important sources in radiotherapy-radiological incidents' in which the radiological incidents are defined and the basic guidance for their classification (category A, B, C, D), investigation and reporting are given. At regular periods the SONS in co-operation with radiotherapy centers is making a survey of all radiological incidents occurring in institutions and it is presenting obtained information in synoptic communication (2003 Motolske dny, 2005 Novy Jicin). This presentation is another summary report of radiological incidents that occurred in our radiotherapy institutions during last 3 years. Emphasis is given not only to survey and statistics, but also to analysis of reasons of the radiological incidents and to their detection and prevention. Analyses of incidents in radiotherapy have led to a much broader understanding of incident causation. Information about the error should be shared as early as possible during or after investigation by all radiotherapy centers. Learning from incidents, errors and near misses should be a part of improvement of the QA system in institutions. Generally, it is recommended that all radiotherapy facilities should participate in the reporting, analyzing and learning system to facilitate the dissemination of knowledge throughout the whole country to prevent errors in radiotherapy.(authors)

  20. Radiology education: a radiology curriculum for all medical students?

    NARCIS (Netherlands)

    Zwaan, Laura; Kok, E.M.; van der Gijp, Anouk

    2017-01-01

    Diagnostic errors in radiology are frequent and can cause severe patient harm. Despite large performance differences between radiologists and non-radiology physicians, the latter often interpret medical images because electronic health records make images available throughout the hospital. Some

  1. Arthritis: Conventional and Advanced Radiological Imaging

    Directory of Open Access Journals (Sweden)

    Adviye Ergun

    2014-06-01

    Full Text Available Arthritides are acute or chronic inflammation of one or more joints. The most common types of arthritis are osteoarthritis and rheumatoid arthritis, but there are more than 100 different forms. Right and early diagnosis is extremely important for the prevention of eventual structural and functional disability of the affected joint. Imaging findings, especially those of advanced level imaging, play a major role in diagnosis and monitor the progression of arthritis or its response to therapy. The objective of the review is to discuss the findings of conventional and advanced radiological imaging of most common arthritides and to present a simplified approach for their radiological evaluation.

  2. Westinghouse radiological containment guide

    International Nuclear Information System (INIS)

    Aitken, S.B.; Brown, R.L.; Cantrell, J.R.; Wilcox, D.P.

    1994-03-01

    This document provides uniform guidance for Westinghouse contractors on the implementation of radiological containments. This document reflects standard industry practices and is provided as a guide. The guidance presented herein is consistent with the requirements of the DOE Radiological Control Manual (DOE N 5480.6). This guidance should further serve to enable and encourage the use of containments for contamination control and to accomplish the following: Minimize personnel contamination; Prevent the spread of contamination; Minimize the required use of protective clothing and personal protective equipment; Minimize the generation of waste

  3. Practical interventional radiology

    International Nuclear Information System (INIS)

    Lammer, J.; Schreyer, H.

    1991-01-01

    The book is intended as a practical guide and manual for interventional radiology applications. Main emphasis is placed on the performance of the various techniques, with explanations of the various steps to be taken, illustrated by drawings or pictures. Indications, contra-indications and clinical achievements are given in brief. There is one chapter each for the following techniques: angioplasty - intra-arterial fibrinolysis - vascular stents - neuroembolisation - embolisation of other vessels - biliary interventions - abscess drainage - nephrostomy and ureteral manipulations -percutaneous fine-needle biopsy - vena cava filters - interventional radiology in infants. (orig.)

  4. Radiological worker training

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-10-01

    This Handbook describes an implementation process for core training as recommended in Implementation Guide G441.12, Radiation Safety Training, and as outlined in the DOE Radiological Control Standard (RCS). The Handbook is meant to assist those individuals within the Department of Energy, Managing and Operating contractors, and Managing and Integrating contractors identified as having responsibility for implementing core training recommended by the RCS. This training is intended for radiological workers to assist in meeting their job-specific training requirements of 10 CFR 835. While this Handbook addresses many requirements of 10 CFR 835 Subpart J, it must be supplemented with facility-specific information to achieve full compliance.

  5. Synopsis of radiologic anatomy

    International Nuclear Information System (INIS)

    Meschan, I.

    1987-01-01

    The book is a compact version of earlier publications that appeared in 1975 as a one- and a two-volume issue under the title 'Atlas of Radiologic Anatomy'. A chapter on computed tomography has been added as this novel technique requires a new approach to radiologic anatomy. The radiologist will find all the information on the anatomic conditions he needs for analysing radiographs and CT pictures. More than 600 radiographs and CT pictures are given that illustrate typical and rare findings. The book also is useful as a source of reference for making good radiographs and evaluating the quality of radiographs or CT pictures. With 1413 figs., 18 tabs [de

  6. Gastrointestinal and hepatobiliary radiology

    International Nuclear Information System (INIS)

    Graham, R.N.J.; Perriss, R.W.; Scarsbrook, A.F.

    2006-01-01

    This is the fifth in the series of short reviews of internet-based radiological learning resources and will focus on gastrointestinal (GI) and hepatobiliary radiology. Below are details of a few of the higher quality resources currently available. Most of the sites cater for medical students and trainee or non-specialist radiologists, but may be also be of interest to specialists, especially for use in teaching. Hyperlinks are available in the electronic version of this article and were all active at the time of going to press (May 2006)

  7. Radiological worker training

    International Nuclear Information System (INIS)

    1998-10-01

    This Handbook describes an implementation process for core training as recommended in Implementation Guide G441.12, Radiation Safety Training, and as outlined in the DOE Radiological Control Standard (RCS). The Handbook is meant to assist those individuals within the Department of Energy, Managing and Operating contractors, and Managing and Integrating contractors identified as having responsibility for implementing core training recommended by the RCS. This training is intended for radiological workers to assist in meeting their job-specific training requirements of 10 CFR 835. While this Handbook addresses many requirements of 10 CFR 835 Subpart J, it must be supplemented with facility-specific information to achieve full compliance

  8. Normal radiological findings

    International Nuclear Information System (INIS)

    Moeller, T.B.

    1987-01-01

    This book is intended for learners in radiology, presenting a wealth of normal radiological findings together with a systematic guide for appraisal and interpretation, and for formulation of reports. The text examples and criteria given will help beginners in learning to 'read' a radiograph, and to verify their conclusions by means of checklists and standard reports. The case material covers numerous illustrations from the following sectors: Skeletal radiography, mammography, tomography, contrast radiography, organ examination by intravenous techniques, arthrography and angiography, and specialized radiography, (ECB) With 184 figs [de

  9. Radiological sciences dictionary

    CERN Document Server

    Dowsett, David

    2009-01-01

    The Radiological Sciences Dictionary is a rapid reference guide for all hospital staff employed in diagnostic imaging, providing definitions of over 3000 keywords as applied to the technology of diagnostic radiology.Written in a concise and easy to digest form, the dictionary covers a wide variety of subject matter, including:· radiation legislation and measurement · computing and digital imaging terminology· nuclear medicine radionuclides and radiopharmaceuticals· radiographic contrast agents (x-ray, MRI and ultrasound)· definitions used in ultrasound and MRI technology· statistical exp

  10. Radiological dorsal tilt analysis of AO type A, B, and C fractures of the distal radius treated conservatively or with extra-focal K-wire plus external fixateur

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, Michael [University Medical Center Hamburg-Eppendorf, Department of Trauma, Hand and Reconstructive Surgery, Hamburg (Germany); Borders General Hospital, Department for Trauma and Orthopaedic Surgery, Melrose, Roxburghshire, Scotland (United Kingdom); Schroeder, Malte; Gruber-Rathmann, Michaela; Ruecker, Andreas H. [University Medical Center Hamburg-Eppendorf, Department of Trauma, Hand and Reconstructive Surgery, Hamburg (Germany); Kossow, Kai [Department of Medical Psychology, University Medical Center Hamburg-Eppendorf, Hamburg (Germany)

    2012-09-15

    Fractures of the distal radius are amongst the most common injury patterns. The dorsal tilt represents an important co-factor determining functional outcome. The purpose of this study was to analyze the radiological dorsal tilt and identify critical time frames in conservative and operative treatment of distal radius fractures. Eighty-seven conservatively treated (hematoma block assisted reduction and splinting) and 37 operatively treated (reduction, extra-focal K-wire fixation, bridging external fixateur) AO type A, B, and C fractures of the distal radius in 124 females were retrospectively analyzed. The dorsal tilt at the initial, post-reduction, and 2 weeks post-reduction stages was correlated with the final radiographic outcome at 6 weeks. Mean initial dorsal tilt was 16.53 in the conservatively treated group and 26.76 in the operatively treated group. Mean dorsal tilt after 6 weeks showed significant differences from the mean initial dorsal tilt at time of presentation within both groups (both groups p < 0.000). No significant differences between the two groups were found after 6 weeks of treatment (p = 0.194) regardless of the underlying AO fracture type. Conservatively treated radius fractures showed a significantly higher slip rate within the first 2 weeks (primary slip rate), whereas the operative group presented a significantly higher slip rate between the 2-week and 6-week radiographic checks (secondary slip rate). In terms of dorsal tilt, conservative (cast immobilization) and operative (K-wire fixation plus external fixateur) treatment demonstrated no significant differences at the final radiographic examination (6 weeks) regardless of the underlying AO fracture type. Both treatment groups showed treatment-associated different primary and secondary slip rates, indicating a need for more frequent radiographic checks within these critical time frames. (orig.)

  11. Non-surgical care for locally advanced breast cancer: radiologically assessed therapeutic outcome of a new enzyme-targeting radiosensitization treatment, Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas, Type II (KORTUC II) with systemic chemotherapy.

    Science.gov (United States)

    Miyatake, Kana; Kubota, Kei; Ogawa, Yasuhiro; Hamada, Norihiko; Murata, Yoriko; Nishioka, Akihito

    2010-11-01

    We have previously developed a new enzyme-targeting radiosensitization treatment named Kochi Oxydol-Radiation Therapy for Unresectable Carcinomas, Type II (KORTUC II), which markedly enhances radiotherapeutic effects on various types of locally advanced malignant neoplasms. KORTUC II was approved by our local ethics committee for use against various types of malignant neoplasms. A maximum of 6 ml of radiosensitizer was injected into tumor tissue under ultrasonographic guidance just before each administration of radiotherapy. Seventeen patients with locally advanced breast cancer were enrolled to receive KORTUC II with systemic chemotherapy without surgical care. Patients were eligible if they had declined surgical treatment. Median observation period was 13.4 months (range, 1-26 months). This therapy was well tolerated. Contrast-enhanced magnetic resonance imaging revealed complete response in all primary breast tumors, and no patients displayed local recurrence during the follow-up period. Ultrasonography depicted tumor-like findings in 9 of 17 cases after therapy. The existence rate of posterior shadow artifacts behind the tumor was 2/17 before therapy, increasing to 8/17 after therapy. Intratumoral flow signals on color Doppler sonography were seen in 16/17 cases before therapy, but had disappeared from all cases after therapy. The increased rate of posterior shadow artifacts and absence of flow signals after therapy suggest that the tumor-like finding on ultrasonography represents scar tissue. Computed tomography revealed positive axillary nodes metastases in 16/17 and 2/17 cases before and after therapy, respectively. Nodal metastatic failure affected only 1 patient, who refused adjuvant systemic chemotherapy at the end of the observation period. Abnormal lymph node findings on computed tomography remained stable in the other patient. Excellent locoregional control based on accurate radiological evaluation implies that KORTUC II with chemotherapy has the

  12. Radiological chronometry of uranium metal samples

    International Nuclear Information System (INIS)

    Meyers, L.A.; Stalcup, A.M.; Glover, S.E.; Spitz, H.B.; LaMont, S.P.

    2014-01-01

    Radiological chronometry is an important tool in nuclear forensics that uses several methods to determine the length of time that has elapsed since a material was last purified. One of the chronometers used in determining the age of metallic uranium involves measuring the fractional ingrowth of 230 Th from its parent 234 U with the assumption that the uranium metal contained no impurities, especially thorium, when it was purified. The affects of different etching procedures were evaluated for the removal of surface oxidation with three different types of uranium metal samples to determine whether the etching procedure affects the radiological age. The sample treated with a rigorous etching procedure had exhibited the most reliable radiological age while less rigorous etching yields a radiological age from 15 years to hundreds of years older than the known age. Any excess thorium on the surface of a uranium metal sample presents a bias in age determination and the sample will appear older than the true age. Although this research demonstrates the need for rigorous surface etching, a bias in the radiological age could have arisen if the uranium in the metal was heterogeneously distributed. (author)

  13. The fate of the hip in spondylo-epi-metaphyseal dysplasia: clinical and radiological evaluation of adults with SEMD Handigodu type

    International Nuclear Information System (INIS)

    Siddesh, N.D.; Shah, Hitesh; Joseph, Benjamin

    2012-01-01

    This study was undertaken to document the fate of the hip with reference to its structure and function in patients with spondylo-epi-metaphyseal dysplasia tarda Handigodu type (SEMD HG ). Radiographs of 271 adult patients with SEMD HG were studied to identify the pattern of long-term sequelae in the hips. Several measurements of the proximal femur and acetabulum were made to quantify morphological alterations in the hip. Fifty-four adult patients were examined and administered a questionnaire to evaluate the extent of disability attributable to the hips. Three patterns of changes in the hips were noted: 35% had acetabular protrusio, 33% had subluxation of the hip, and 32% had no protrusio or subluxation. Distinctly different anthropometric measurements and dimensional alterations around the hip were noted in these three patterns. Patients with protrusio were relatively tall while those with subluxation were the shortest. All the patients had developed degenerative arthritis of the hips by the fourth decade of life irrespective of the pattern of hip involvement. The reduction in the range of hip motion and fixed deformities were most severe in patients with protrusio. All the patients had significant disability and very low functional hip scores. Degenerative arthritis of the hip develops in the majority of patients with SEMD HG ; the symptoms are severe enough to warrant reconstructive surgery by the fourth decade of life. Protrusio or subluxation develops in a third of the patients each; both these complications will influence the surgical approach if total hip arthroplasty is planned. (orig.)

  14. 324 Building Baseline Radiological Characterization

    Energy Technology Data Exchange (ETDEWEB)

    R.J. Reeder, J.C. Cooper

    2010-06-24

    This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building.

  15. Guidelines for a radiology department

    International Nuclear Information System (INIS)

    1981-05-01

    This manual presents guidelines for hospitals on a radiology quality assurance and dose measurement audit program and a system of planned actions that monitor and record the performance and effectiveness of the radiological service

  16. Radiological controls integrated into design

    Energy Technology Data Exchange (ETDEWEB)

    Kindred, G.W. [Cleveland Electric Illuminating Co., Perry, OH (United States)

    1995-03-01

    Radiological controls are required by law in the design of commercial nuclear power reactor facilities. These controls can be relatively minor or significant, relative to cost. To ensure that radiological controls are designed into a project, the health physicist (radiological engineer) must be involved from the beginning. This is especially true regarding keeping costs down. For every radiological engineer at a nuclear power plant there must be fifty engineers of other disciplines. The radiological engineer cannot be an expert on every discipline of engineering. However, he must be knowledgeable to the degree of how a design will impact the facility from a radiological perspective. This paper will address how to effectively perform radiological analyses with the goal of radiological controls integrated into the design package.

  17. Program of environmental radiological monitoring

    International Nuclear Information System (INIS)

    2005-11-01

    This Regulation refers to the requirement of the Regulation CNEN-NN.3.01, 'Basic Act of Radiological Protection', as expressed in the section 5.14, related to the Program of Environmental Radiological Monitoring (PMRA)

  18. American Society of Radiologic Technologists

    Science.gov (United States)

    ... Technology Job Bank Job Search Resources Radiologic Assistant Salary Estimator About ASRT Contact ASRT Membership Mission & Vision ... Now Open Nov 13, 2017 Libraries in New Mexico Recognize National Radiologic Technology Week® Nov 07, 2017 ...

  19. The fate of the hip in spondylo-epi-metaphyseal dysplasia: clinical and radiological evaluation of adults with SEMD Handigodu type

    Energy Technology Data Exchange (ETDEWEB)

    Siddesh, N.D.; Shah, Hitesh; Joseph, Benjamin [Kasturba Medical College, Paediatric Orthopaedic Service, Manipal, Karnataka State (India)

    2012-08-15

    This study was undertaken to document the fate of the hip with reference to its structure and function in patients with spondylo-epi-metaphyseal dysplasia tarda Handigodu type (SEMD{sub HG}). Radiographs of 271 adult patients with SEMD{sub HG} were studied to identify the pattern of long-term sequelae in the hips. Several measurements of the proximal femur and acetabulum were made to quantify morphological alterations in the hip. Fifty-four adult patients were examined and administered a questionnaire to evaluate the extent of disability attributable to the hips. Three patterns of changes in the hips were noted: 35% had acetabular protrusio, 33% had subluxation of the hip, and 32% had no protrusio or subluxation. Distinctly different anthropometric measurements and dimensional alterations around the hip were noted in these three patterns. Patients with protrusio were relatively tall while those with subluxation were the shortest. All the patients had developed degenerative arthritis of the hips by the fourth decade of life irrespective of the pattern of hip involvement. The reduction in the range of hip motion and fixed deformities were most severe in patients with protrusio. All the patients had significant disability and very low functional hip scores. Degenerative arthritis of the hip develops in the majority of patients with SEMD{sub HG}; the symptoms are severe enough to warrant reconstructive surgery by the fourth decade of life. Protrusio or subluxation develops in a third of the patients each; both these complications will influence the surgical approach if total hip arthroplasty is planned. (orig.)

  20. German radiological congress 1983

    International Nuclear Information System (INIS)

    Haubitz, B.; Stender, H.S.

    1983-01-01

    The publication contains the abstracts of the 261 papers read at the meeting and the 82 further papers announced, and 37 brief descriptions of the contributions to the scientific exhibition. The papers were on the subjects of radiology, nuclear medicine and to a certain extent, also radiobiology. (MG) [de

  1. Radiologic Career Ladder

    Science.gov (United States)

    1992-09-01

    of operating fixed and mobile radiologic equipment; routine and special radiographic positioning; theory and practice of special radiographic...defined as training provided by resident technical schools, field training detachments (FTD), mobile training teams (MTT), formal OJT, or any other...TISSUE STUDIES 81 1316 PERFORM HUMERUS RADIOGRAPHIC EXAMINATIONS 81 1306 PERFORM COCCYX RADIOGRAPHIC EXAMINATIONS 81 1329 PERFORM PARANASAL SINUS

  2. SA Journal of Radiology

    African Journals Online (AJOL)

    Radiology examination as a diagnostic aid in presentations with wide differential diagnoses: Case report of new Hodgkin's lymphoma on a background of poorly controlled HIV · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Rachel Hubbard, Jalpa Kotecha, Thomas ...

  3. Radiological protective screen

    International Nuclear Information System (INIS)

    Flaugnatti, R.B.

    1976-01-01

    A radiological screen for placing on a patient's skin is discussed, comprising a flat jacket containing a fine particulate filler and a settable resin binder, the fine particulate filler being of a material which absorbs medical radiation, and the jacket including a window to transmit such radiation through the flat jacket. 16 claims, 4 drawing figures

  4. Radiology Design Project Primer.

    Science.gov (United States)

    Sze, Raymond W; Teshima, Satoshi; Hogan, Laurie; Davidson, Scott

    2017-12-21

    The design of hospital environments is receiving increased attention as an important contributor to patient satisfaction and experience, which have a direct impact on reimbursement. Well-designed health care environments can decrease stress, improve concentration, and contribute to improved patient outcomes and enhanced staff morale. Most radiologists and business directors lack formal training in design and may feel they have little to contribute to design planning, yet creating an optimal environment for patients requires a strong understanding of local demographics and both patient and staff needs, which is a core responsibility of radiology leadership. This article presents practical guidelines for selecting a design partner for an imaging construction project, developing a design theme and design sensibilities, and engaging a multidisciplinary radiology team in working with a designer; the goal is to enable radiology leadership to collaborate with designers to cocreate health care environments that aspire to be integral components of patient-centered care and experience. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  5. Radiological analysis of

    African Journals Online (AJOL)

    Dr Olaleye

    Crustacean and Sediment Samples from Fresh and Marine. Water in Oil Exploration Area of Ondo State, Nigeria. J. A. Ademola1* and S. I. Ehiedu2. 1. Department of Physics, University of Ibadan, Ibadan, Nigeria. 2. National Institute of Radiation Protection and Research, Ibadan, Nigeria. ABSTRACT: Radiological analysis ...

  6. The radiological technologist

    International Nuclear Information System (INIS)

    Bundy, A.L.

    1988-01-01

    Radiologists rely upon the talents of the technologists with whom they work. Indeed, a good technologist will only enhance the radiologist's performance. Radiological technologists no longer solely take radiographs, but are involved in many more detailed areas of imaging, such as computered tomography, magnetic resonance imaging, nuclear radiology, ultrasound, angiography, and special procedures. They are also required to make decisions that affect the radiological examination. Besides the degree in radiological technology (RT), advanced degrees in nuclear medicine technology (NMT) and diagnostic medical sonography (RDMS) are attainable. The liability of the technologist is not the same as the radiologist involved, but the liability is potentially real and governed by a subdivision of jurisprudence known as agency law. Since plaintiffs and attorneys are constantly searching for new frontiers of medical liability, it is wise for the radiologist and technologist to be aware of the legalities governing their working relationship and to behave accordingly. The legal principles that apply to this working relationship are discussed in this chapter, followed by a presentation of some relevant and interesting cases that have been litigated

  7. ERC Radiological Glovebag Program

    International Nuclear Information System (INIS)

    Nellesen, A.L.

    1997-07-01

    This document establishes the requirements and responsibilities for the standardized methods for installation, use, and dismantlement of glovebags within the Hanford Site Environmental Contractor Radiological Glovebag Program. This document addresses the following topics: Containment selection and fabrication, Glovebag fabrication, Containment installation and inspection, General glovebag containment work practices, Emergency situations, and Containment removal

  8. Ethical problems in radiology: radiological consumerism.

    Science.gov (United States)

    Magnavita, N; Bergamaschi, A

    2009-10-01

    One of the causes of the increasing request for radiological examinations occurring in all economically developed countries is the active role played by the patient-consumer. Consumerism places the radiologist in an ethical dilemma, between the principle of autonomy on the one hand and the ethical principles of beneficence, nonmaleficence and justice on the other. The choice made by radiologists in moral dilemmas is inspired by an adherence to moral principles, which in Italy and elsewhere refer to the Judaeo-Christian tradition or to neo-Darwinian relativism. Whatever the choice, the radiologist is bound to adhere to that choice and to provide the patient with all the relevant information regarding his or her state of health.

  9. Radiation protection and quality assurance in dental radiology: II. Panoramic radiology

    International Nuclear Information System (INIS)

    Jodar-Porlan, S.; Alcaraz, M.; Martinez-Beneyto, Y.; Saura-Iniesta, A.M.; Velasco-Hidalgo, E.

    2001-01-01

    This paper studies 278 official reports on quality assurance in dental radiology in the context of the first revision of these dental clinics, as a result of the entry into force of the regulations establishing the duties for these types of facilities. In the results section we present a quantitative analysis of the facilities equipped with an panoramic radiology apparatus, making a special reference to the brands they have available, as well as their physical features (kV, mA, filtration) and the deviations detected in their operation. Some of their features in the process of obtaining radiological images at those facilities (film control, development time, liquid renewal) are determined, and the average dose of ionising radiation used in order to obtain the same tooth radiological image is presented. This paper shows, in a quantitative way, the characteristic features of panoramic radiology in our medium. The study is intended to be continued during the next years, which would allow the assessment of the prospective improvement in dental radiological performances as a result of the newly established regulations. (author)

  10. Lessons learned in radiology

    International Nuclear Information System (INIS)

    Goodenough, D.J.

    2001-01-01

    The paper reviews aspects of the history of radiology with the goal of identifying lessons learned, particularly in the area of radiological protection of the patient in diagnostic and interventional radiology, nuclear medicine and radiotherapy. It is pointed out that since the days of Roentgen there has been a need not only to control and quantify the amount of radiation reaching the patient but also to optimize the imaging process to offer the greatest diagnostic benefit within allowable levels of patient dose. To this end, in diagnostic radiology, one finds the development of better films, X rays tubes, grids, screens and processing techniques, while in fluoroscopy, one sees the increased luminance of calcium tungstate. In interventional radiology, one finds an improvement in catheterization techniques and contrast agents. In nuclear medicine, the development of tracer techniques into modern cameras and isotopes such as technetium can be followed. In radiotherapy, one sees the early superficial X rays and radium sources gradually replaced with radon seeds, supervoltage, 60 Co and today's linear accelerators. Along with the incredible advances in imaging and therapeutic technologies comes the growing realization of the potential danger of radiation and the need to protect the patient (as well as physicians, ancillary personnel and the general population) from unnecessary radiation. The important lesson learned is that we must walk a tightrope, balancing the benefits and risks of any technology utilizing radiation to produce the greatest benefits at the lowest acceptable risk. The alternative techniques using non-ionizing radiation will have to be considered as part of the general armamentarium for medical imaging whenever radiation consequences are unacceptable. (author)

  11. Recent trend of diagnostic radiology

    International Nuclear Information System (INIS)

    Kim, S.Y.; Kim, H.K.

    1979-01-01

    Present status and recent trend of diagnostic radiology have been reviewed. The interrelationships and Characteristics of various fields of radiology such as computed tomography, X-ray radiology, and nuclear medicine were discussed. The mevit of computed tomography and the promising use of short lived, accelerator produced radionuclides, and radiotherapy in nuclear medicine were emphasized. (author)

  12. Retracted Publications Within Radiology Journals.

    Science.gov (United States)

    Rosenkrantz, Andrew B

    2016-02-01

    The purpose of this study was to characterize trends related to retracted publications within radiology journals. PubMed was queried to identify all articles with the publication type "retracted publication" or "notification of retraction." Articles published within radiology journals were identified using Journal Citation Reports' journal categories. Available versions of original articles and publication notices were accessed from journal websites. Citations to retracted publications were identified using Web of Science. Overall trends were assessed. Forty-eight retracted original research articles were identified within radiology journals since 1983, which included 1.1% of all PubMed "retracted publication" entries. Distinct PubMed entries were available for the retracted publication and retraction notification in 39 of 48 articles. The original PDF was available for 37 articles, although the articles were not watermarked as retracted in 23 cases. In six cases with a watermarked PDF, further searches identified nonwatermarked versions. Original HTML versions were available for 13 articles but 11 were not watermarked. The mean (± SD) delay between publication and retraction was 2.7 ± 2.8 years (range, 0-16 years). The mean number of citations to retracted articles was 10.9 ± 17.1 (range, 0-94 citations). Reasons for retraction included problematic or incorrect methods or results (although it typically was unclear whether these represented honest errors or misconduct) in 33.3% of cases, complete or partial duplicate publication in 33.3% of cases, plagiarism in 14.6% of cases, a permission issue in 8.3% of cases, the publisher's error in 6.3% of cases, and no identified reason in 6.3% of cases. One or no retractions occurred annually from 1986 to 2001, although two or more retractions occurred annually in nine of the 12 years from 2002 through 2013. Retraction represents an uncommon, yet potentially increasing, issue within radiology journals that publishers

  13. The Development of Radiology among Slovenes

    Directory of Open Access Journals (Sweden)

    Zvonka Zupanič Slavec

    2016-10-01

    Full Text Available Few discoveries in the history of science brought such significant progress as did the discovery of X-rays by the German physicist Wilhelm Conrad Röntgen in 1895. The finding did not only bring a revolution to the field of medicine but also to many other technical branches. With technological progress in the 20th century, medical roentgenology swiftly developed. The first significant step forward was the introduction of contrast media followed by others including computerised image data management and digital techniques. Medical diagnostics embraced other imaging methods based on other types of energy such as ultrasound and magnetic resonance imaging. The beginnings of roentgenology in the Slovene Lands go back to the year 1900. Bone fractures were the first to be imaged, followed by thoracic imaging and contrast imaging of the gastrointestinal tract. The use of roentgenology spread significantly after World War I, with the implementation in the following years of X-ray machines in all Slovenian hospitals, some spas and sanatoria. Gradually the need for an independent scientific institution emerged, which led to the establishment of the Roentgenological Institute for Slovenia and Istria in Ljubljana in 1923. At the same time radiology was developing also by other Slovenian hospitals.In the 1950s, Slovenian roentgenology increasingly stayed in touch with contemporary international development, updated its equipment and introduced new methods. The modern concept of centralised radiological management, comparable with that of modern European institutions, was realised in Ljubljana in 1973 after the relocation of the Radiological Institute to the new facilities at the Ljubljana University Medical Centre. The first computer tomography machine was installed in 1980, the first ultrasound machine was acquired in 1981, the first digital subtraction angiography (DSA machine was introduced in 1986 and the first magnetic resonance machine was installed in

  14. Choledocal cyst: the radiological evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Choi, J. K.; Jeon, H. J.; Kim, J. H.; Cha, I. H.; Chung, K. B.; Suh, W. H. [Korea University College of Medicine, Seoul (Korea, Republic of)

    1986-08-15

    The authors have experienced 11 cases of radiologically or surgically proven choledochal cyst during the period of 4 years, and reviewed radiological and clinical features. The results are as follows: 1. The sex ratio of female to male was 2.7:1. Four were children under 10, and seven were adults over 30 years of age. 2. The most frequent symptom was abdominal pain (45%), which was followed by jaundice (36%) and palpable abdominal mass (27%). 3. Morphologically, 4 cases were type A of Kimura classification (segmental cystic dilatation involving common bile duct; pure type A of Alonso-Lej). The other 7 patients showed some dilatation in the intrahepatic bile ducts as well; i.e. type A' of Kimura classification. 4. The union between the common bile and main pancreatic ducts was at a high position in 5 of 6 patients in whom both ducts were adequately opacified with ERCP, PTC and/or operative cholangiography, forming an abnormally long common channel. 5. Associated choledocholithiasis was reported with increasing frequency. We experienced 4 cases (36.3%) which had multiple stones in the choledochal cyst. 6. Adenocarcinoma were combined in 2 patients; both were females of 38 and 45 years of age. 7. Ten cases were correctly diagnosed preoperatively with ultrasonography. Specific ultrasound diagnosis of a choledochal cyst could be made by identifying two bile ducts entering into the large cyst which was separated from the gallbladder and extended deep onto the portal hepatic. Dilatation of intrahepatic ducts could be easily identified.

  15. Rational use of diagnostic radiology

    International Nuclear Information System (INIS)

    Racoveanu, N.T.; Volodin, V.

    1992-01-01

    The escalating number of radiodiagnostic investigations has, as a consequence, an increase in medical irradiation of patients and of cost of radiological services. Radiologists in USA and UK have since early 1970 questioned the efficacy of various radiological investigations and produced substantial evidence that more rational approaches are necessary. WHO initiated, in 1977, a programme in this direction which has issued four technical reports which give practical recommendations on how to rationalize the use of radiological examinations. Three main directions are considered: (1) Abandonment of routine radiological examinations, as procedures with no clinical or epidemiologic significance and which represent a waste of resources and patient dose. (2) Patient selection for various radiological investigations based on clinical criteria (high, intermediate, low yield). Selected patients have an increased prevalence of the given disease and the predictive value of radiological investigation is much higher. (3) Use of diagnostic algorithms with higher cost/efficiency and risk/benefit ratios, improving the outcome of radiological examinations

  16. Radiological protection report 2007

    International Nuclear Information System (INIS)

    2008-01-01

    This annual report issued by the Swiss Federal Nuclear Inspectorate (HSK) reports on the work carried out by the Inspectorate in 2007. It provides comprehensive data on radiation protection activities in Switzerland during 2007. This is the fourth annual summary report on the radiological protection issues regulated by the Inspectorate. It provides comprehensive data on doses for the staff and for individual jobs. It also includes year-to-year comparisons and comments on the continuing decline in collective and average doses for persons exposed to radiation in the course of their work. Radiation doses are commented on. Radiation in the four Swiss nuclear power stations and in four further nuclear installations in various Swiss research facilities is commented on. The Swiss radiation measurement network is commented on and the results obtained are discussed. The Inspectorate concludes that radiological protection in Swiss nuclear facilities is carried out consistently and in compliance with existing legislation

  17. Radiological analysis of osteoporosis

    Energy Technology Data Exchange (ETDEWEB)

    Lemaire, C

    2000-09-30

    This paper is intended to provide medical radiation technologists with an overview of how radiology can play a role in the detection of osteoporosis. Osteoporosis is defined as disease where there is a generalized or localized deficiency of bone matrix. This deficiency causes bones to become weak resulting in an increased risk of fracture. Current methods to detect bone deficiency involve the use of bone densitometry. Over the years both radioactivity and ionizing radiation have been used to measure bone density. Currently the preferred method of choice for bone densitometry is a dual energy x-ray absorptiometry unit. This unit has the greatest reliability and precision with a low absorbed dose to the patient. With early detection of the disease, treatment can begin and further bone loss prevented. In the future, radiology will continue to be a valuable asset in the diagnosis and management of osteoporosis. (author)

  18. Digital radiology and ultrasound

    International Nuclear Information System (INIS)

    Todd-Pokropek, A.

    1991-01-01

    With the access to digital methods for handling and processing images in general, many medical imaging methods are becoming more effectively handled digitally. This applies in particular to basically digital techniques such as CT and MR but also now includes Nuclear Medicine (NM), Ultrasound (US) and a variety of radiological procedures such as Digital Subtraction Angiography (DSA) and Fluoroscopy (DF). The access to conventional projection images by stimulatable plates (CR) or by digitization of film makes all of radiology potentially accessible, and the management of such images by a network is the basic aim of Picture Archiving and Communication Systems (PACS). However, it is suggested that in order for such systems to be of greater value, that way in which such images are treated needs to change, that is, digital images can be used to derive additional clinical value by appropriate processing

  19. Management of Radiological emergencies

    International Nuclear Information System (INIS)

    Lentijo, J. C.; Gil, E.; San Nicolas, J.; Lazuen, J. A.

    2004-01-01

    Spain has a system of planning and response to emergency situations that is structured and coordinated by the General Directorship of civil Defense of the Ministry of the Interior and in which all levels of the Public Administration. state, autonomous and municipal-and owners of potentially hazardous activities participate. Activities involving a nuclear or radiological risk have specific emergency plans whose general principles are based on the general emergency system and whose technical bases are consistent with international practices and recommendations. The Consejo de Seguridad Nuclear actively participates in the design, implementation and activation of these plans, and for this purpose has an organization superimposed on its ordinary working organization that is activated in the event of an accident, as well as an Emergency Room specifically designed to deal with nuclear and radiological emergencies. (Author)

  20. Osteoblastoma. Peritumoral radiological changes

    International Nuclear Information System (INIS)

    Onatibia, A.; Paola, C.; Camara, M.

    1999-01-01

    It is a well-known fact that peritumoral radiological changes are observed in certain benign tumors, such as osteoid osteoma and chondroblastoma. In a series of eight osteoblastoma patients, we detected four cases of peritumoral changes using one or more of the following imaging techniques: plain radiography, computed tomography, magnetic resonance, gamma scintigraphy and arteriography. The radiological changes are described and classified as distant periostitis, regional osteoporosis, soft tissue changes, diffuse radiolabel uptake, extensive capillary hypervascularization and staining, and changes in magnetic resonance signal. We discuss the pathophysiology of the peritumoral inflammatory edema induced by the prostaglandins produced by some of these tumors. Moreover, we stress the importance of assessing the entire set of imaging studies, no only to determine the definitive diagnosis but to avoid confusing these lesions with malignant tumors as a result of the overestimation of their extension and aggressiveness. (Author) 15 refs

  1. Safeness of radiological machinery

    International Nuclear Information System (INIS)

    Yokoyama, Shun

    1979-01-01

    The human factors affecting the safeness of radiological machinery, which are often very big and complicated machines, are described from the stand point of handling. 20 to 50% of the troubles on equipments seem to be caused by men. This percentage will become even higher in highly developed equipments. Human factors have a great influence on the safeness of radiological equipments. As the human factors, there are sensory factors and knowledge factors as well as psychological factors, and the combination of these factors causes mishandling and danger. Medical services at present are divided in various areas, and consist of the teamwork of the people in various professions. Good human relationship, education and control are highly required to secure the safeness. (Kobatake, H.)

  2. Radiological focusing techniques

    International Nuclear Information System (INIS)

    Husmann, K.; Mehrkens, A.; Hancken, G.

    1995-01-01

    The textbook explains the most common and essential radiological focusing techniques and gives the relevant theory and technical fundamentals. The theory does not consume much space in this book, the theoretical part briefly addressing such aspects as film-screen combinations, doses administered by X-ray radiography, quality assurance, radiological protection, and potential patient reactions to contrast media applied. The textbook primarily is a practical guide giving general advice and guidance on focusing techniques, accompanied by an illustrative compilation of frequent mistakes. Arranged by body regions, the well over 80 examples of focusing techniques are presented by systematic texts and illustrations. There is an annex giving a glossary of terms, a bibliography, and a list of useful addresses. (orig./MG) [de

  3. Radiological diagnosis in traumatology

    International Nuclear Information System (INIS)

    Frahm, R.

    2001-01-01

    This loose-leaf publication covers all radiological problems that may possibly occur in accident surgery. The focus is on conventional radiological diagnosis. The physical and technical fundamentals of diagnostic examination methods are discussed, followed by practical hints on radiation protection, technical equipment and quality assurance, as well as accurate information on the procedure of taking and interpreting standard X-ray pictures. The indications for standard X-raying, tomography, CT and MRT are presented in consideration of the radiation exposure incurred by the patient. The reader is also informed on the dynamics and varying morphology of bone fracture healing, potential disturbances of callus formation and reconstruction, as well as on possible complications. The main section of the book discusses injuries of the skull, spinal cord, pectoral girdle, upper arm, elbow and lower arm, wrist and hands, pelvis, hip joint, knee and upper and lower leg, ankle joint and foot, thorax and abdomen. (orig.)

  4. Radiology and Ethics Education.

    Science.gov (United States)

    Camargo, Aline; Liu, Li; Yousem, David M

    2017-09-01

    The purpose of this study is to assess medical ethics knowledge among trainees and practicing radiologists through an online survey that included questions about the American College of Radiology Code of Ethics and the American Medical Association Code of Medical Ethics. Most survey respondents reported that they had never read the American Medical Association Code of Medical Ethics or the American College of Radiology Code of Ethics (77.2% and 67.4% of respondents, respectively). With regard to ethics education during medical school and residency, 57.3% and 70.0% of respondents, respectively, found such education to be insufficient. Medical ethics training should be highlighted during residency, at specialty society meetings, and in journals and online resources for radiologists.

  5. Computer assisted radiology

    International Nuclear Information System (INIS)

    Lemke, H.U.; Jaffe, C.C.; Felix, R.

    1993-01-01

    The proceedings of the CAR'93 symposium present the 126 oral papers and the 58 posters contributed to the four Technical Sessions entitled: (1) Image Management, (2) Medical Workstations, (3) Digital Image Generation - DIG, and (4) Application Systems - AS. Topics discussed in Session (1) are: picture archiving and communication systems, teleradiology, hospital information systems and radiological information systems, technology assessment and implications, standards, and data bases. Session (2) deals with computer vision, computer graphics, design and application, man computer interaction. Session (3) goes into the details of the diagnostic examination methods such as digital radiography, MRI, CT, nuclear medicine, ultrasound, digital angiography, and multimodality imaging. Session (4) is devoted to computer-assisted techniques, as there are: computer assisted radiological diagnosis, knowledge based systems, computer assisted radiation therapy and computer assisted surgical planning. (UWA). 266 figs [de

  6. Training in radiological protection

    International Nuclear Information System (INIS)

    Medina G, E.

    2014-08-01

    In the Peru, according to the current regulations, people that work with ionizing radiations should have an authorization (individual license), which is granted by the Technical Office of the National Authority that is the technical body of the Instituto Peruano de Energia Nuclear (IPEN) manager of the control of ionizing radiations in the country. The individual license is obtained after the applicant fulfills the requested requirements, as having safety knowledge and radiological protection. Since its founding in 1972, the Centro Superior de Estudios Nucleares (CSEN) of the IPEN has carried out diverse training courses in order to that people can work in a safe way with ionizing radiations in medicine, industry and research, until the year 2013 have been organized 2231 courses that have allowed the training of 26213 people. The courses are organized according to the specific work that is carried out with radiations (medical radio-diagnostic, dental radiology, nuclear medicine, radiotherapy, industrial radiography, nuclear meters, logging while drilling, etc.). In their majority the courses are directed to people that will make use of radiations for first time, but refresher courses are also granted in the topic. The CSEN also carries out the Master degree programs highlighting the Second Professional Specialization in Radiological Protection carried out from the year 2004 with the support of the National University of Engineering. To the present has been carried out 2 programs and there is other being developed. In this work is shown the historical evolution of the radiological protection courses as well as the important thing that they are to work in a safe way in the country. (Author)

  7. Radiological containment handbook

    International Nuclear Information System (INIS)

    1982-10-01

    The purpose of this NUREG is to be used as a reference text. It is meant to be used by the working personnel as a guide for using temporary radiological containments. The installing group and health physics group may vary among organizations but responsibilities and duties will not change. It covers installation and inspection containments; working and operating guidelines; operating requirement; emergency procedures; and removal of containments

  8. Fundamentals of radiological protection

    International Nuclear Information System (INIS)

    Wells, J.; Mill, A.J.; Charles, M.W.

    1978-05-01

    The basic processes of living cells which are relevant to an understanding of the interaction of ionizing radiation with man are described. Particular reference is made to cell death, cancer induction and genetic effects. This is the second of a series of reports which present the fundamentals necessary for an understanding of the bases of regulatory criteria such as those recommended by the International Commision on Radiological Protection (ICRP). Others consider basic radiation physics and the biological effects of ionizing radiation. (author)

  9. Radiological safety and control

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jang Hee; Kim, Ki Sub [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-01-01

    The practical objective of radiological safety control is intended for achievement and maintenance of appropreately safe condition in environmental control for activities involving exposure from the use of radiation. In order to establish these objectives, we should be to prevent deterministic effects and to limit the occurrence stochastic effects to level deemed to be acceptable by the application of general principles of radiation protection and systems of dose limitation based on ICRP recommendations. 34 tabs., 19 figs., 11 refs. (Author) .new.

  10. Deep Learning in Radiology.

    Science.gov (United States)

    McBee, Morgan P; Awan, Omer A; Colucci, Andrew T; Ghobadi, Comeron W; Kadom, Nadja; Kansagra, Akash P; Tridandapani, Srini; Auffermann, William F

    2018-03-29

    As radiology is inherently a data-driven specialty, it is especially conducive to utilizing data processing techniques. One such technique, deep learning (DL), has become a remarkably powerful tool for image processing in recent years. In this work, the Association of University Radiologists Radiology Research Alliance Task Force on Deep Learning provides an overview of DL for the radiologist. This article aims to present an overview of DL in a manner that is understandable to radiologists; to examine past, present, and future applications; as well as to evaluate how radiologists may benefit from this remarkable new tool. We describe several areas within radiology in which DL techniques are having the most significant impact: lesion or disease detection, classification, quantification, and segmentation. The legal and ethical hurdles to implementation are also discussed. By taking advantage of this powerful tool, radiologists can become increasingly more accurate in their interpretations with fewer errors and spend more time to focus on patient care. Copyright © 2018 The Association of University Radiologists. Published by Elsevier Inc. All rights reserved.

  11. Pitfalls in diagnostic radiology

    Energy Technology Data Exchange (ETDEWEB)

    Peh, Wilfred C.G. (ed.) [Khoo Teck Puat Hospital (Singapore). Dept. of Diagnostic Radiology

    2015-04-01

    Only textbook to focus primarily on the topic of pitfalls in diagnostic radiology. Highlights the pitfalls in a comprehensive and systematic manner. Written by experts in different imaging modalities and subspecialties from reputable centers across the world. The practice of diagnostic radiology has become increasingly complex, with the use of numerous imaging modalities and division into many subspecialty areas. It is becoming ever more difficult for subspecialist radiologists, general radiologists, and residents to keep up with the advances that are occurring year on year, and this is particularly true for less familiar topics. Failure to appreciate imaging pitfalls often leads to diagnostic error and misinterpretation, and potential medicolegal problems. Diagnostic errors may be due to various factors such as inadequate imaging technique, imaging artifacts, failure to recognize normal structures or variants, lack of correlation with clinical and other imaging findings, and poor training or inexperience. Many, if not most, of these factors are potentially recognizable, preventable, or correctable. This textbook, written by experts from reputable centers across the world, systematically and comprehensively highlights the pitfalls that may occur in diagnostic radiology. Both pitfalls specific to different modalities and techniques and those specific to particular organ systems are described with the help of numerous high-quality illustrations. Recognition of these pitfalls is crucial in helping the practicing radiologist to achieve a more accurate diagnosis.

  12. Pitfalls in diagnostic radiology

    International Nuclear Information System (INIS)

    Peh, Wilfred C.G.

    2015-01-01

    Only textbook to focus primarily on the topic of pitfalls in diagnostic radiology. Highlights the pitfalls in a comprehensive and systematic manner. Written by experts in different imaging modalities and subspecialties from reputable centers across the world. The practice of diagnostic radiology has become increasingly complex, with the use of numerous imaging modalities and division into many subspecialty areas. It is becoming ever more difficult for subspecialist radiologists, general radiologists, and residents to keep up with the advances that are occurring year on year, and this is particularly true for less familiar topics. Failure to appreciate imaging pitfalls often leads to diagnostic error and misinterpretation, and potential medicolegal problems. Diagnostic errors may be due to various factors such as inadequate imaging technique, imaging artifacts, failure to recognize normal structures or variants, lack of correlation with clinical and other imaging findings, and poor training or inexperience. Many, if not most, of these factors are potentially recognizable, preventable, or correctable. This textbook, written by experts from reputable centers across the world, systematically and comprehensively highlights the pitfalls that may occur in diagnostic radiology. Both pitfalls specific to different modalities and techniques and those specific to particular organ systems are described with the help of numerous high-quality illustrations. Recognition of these pitfalls is crucial in helping the practicing radiologist to achieve a more accurate diagnosis.

  13. Safety aspects in radiology

    International Nuclear Information System (INIS)

    Silva, D.C. da.

    1991-05-01

    The development of a program for the evaluation of the physical installations and operational procedures in diagnostic radiology with respect to radiation-safety is described. In addition, a proposal for the quality analysis of X-ray equipment and film-processing is presented. The purpose is both to ensure quality and safety of the radiology service, as well as to aid in the initial and in-service training of the staff. Interviews with patients, staff practicing radiology at a wide range of levels and the controlling authorities were carried out in the State of Rio de Janeiro in order to investigate the existence and the effective use of personal radioprotection equipment as well as user's and staff's concern for radiation safety. Additionally physical measurements were carried out in University Hospitals in Rio de Janeiro to assess the quality of equipment in day-to-day use. It was found that in the locations which did not have routine maintenance the equipment was generally in a poor state which lead to a high incidence of repetition of examinations and the consequent financial loss. (author)

  14. Rational use of diagnostic radiology

    International Nuclear Information System (INIS)

    Racoveanu, N.T.; Volodin, V.

    1992-01-01

    Radiologists in USA and UK have since early 1970 questioned the efficacy of various radiological investigations and produced substantial evidence that more rational approaches are necessary. WHO initiated, in 1977, a programme which has issued four technical reports giving practical recommendations on how to rationalise the use of radiological examinations. Three main directions are considered: (1) Abandonment of routine radiological examinations, as procedures with no clinical or epidemiologic significance and which represent a waste of resources and patient dose. (2) Patient selection for various radiological investigations based on clinical criteria (high, intermediate, low yield). Selected patients have an increased prevalence of the given disease and the predictive value of radiological investigation is much higher. (3) Use of diagnostic algorithms with higher cost/efficiency and risk/benefit ratios, improving the outcome of radiological examinations. (author)

  15. A project: 'Radiological protection in radiology', IAEA - Universidad Central de Venezuela

    International Nuclear Information System (INIS)

    Diaz, A.R.; Salazar, G.; Fermin, R.; Gonzalez, M.

    2001-01-01

    For several years a reference center of the UCV has been working on the project VEN/9/007 on dose reduction in diagnostic radiology sponsored by the IAEA. The dose and quality image was evaluated for different types of radiological study (conventional radiology, CT, mammography, interventional radiology) in different facilities at Caracas and others regions of the Venezuela. TL dosimeters were used to assess dose and reduction in dose. Based on the recommendations given by CEC documents on diagnostic quality criteria, a quality control program in radiological protection of patients and staff has been developed, for example: Pilot study by using TLD in personnel radiation monitoring. Comparative study between high and low kVp in chest. Evaluation and dose reduction in chest pediatric. Reduction of radiation dose in studies of billiards via Quality Image and reduction of the dose in studies of colon by enema. Radiation dose of staff in fluoroscopy procedures. Evaluation and dose reduction in dental radiography in public Institutions. A mammography accreditation program for Venezuela, applied to public hospitals. (author)

  16. Meckel diverticulitis: radiologic and CT features

    International Nuclear Information System (INIS)

    Garcia, Natalia R.; Castrillon, Maria E.; Videla, Ricardo; Camara, Hector; Canga, Carlos; Bustos, Hector F.

    2004-01-01

    The diverticulum of Meckel is the most common congenital anomaly of the gastrointestinal tract. The complications include intestinal obstruction, diverticulitis and bleeding. We present the case of a 32 years old male patient with diverticulitis of Meckel that presents abdominal colic type pain, abdominal distension and vomits. Radiological features and CT findings contributed to a correct diagnosis. Surgery was performed due to a small bowel obstruction caused by a Meckel's diverticulitis. (author)

  17. Radiological characterization of a relevant facility

    International Nuclear Information System (INIS)

    Barberis, Claudia M.; Madariaga, Marcelo

    2009-01-01

    The objective of this work is the radiological characterization of a Nuclear Installation, the RA-1 nuclear reactor. By means of this characterization all the information about amount, type and distribution of radionuclides in the installation will be available. Thus the order of magnitude of the activities that will be involved in the removal of the different materials, at the moment of the decommissioning, will be established. (author)

  18. Information extraction from multi-institutional radiology reports

    Science.gov (United States)

    Hassanpour, Saeed; Langlotz, Curtis P.

    2016-01-01

    Objectives The radiology report is the most important source of clinical imaging information. It documents critical information about the patient’s health and the radiologist’s interpretation of medical findings. It also communicates information to the referring physicians and records that information for future clinical and research use. Although efforts to structure some radiology report information through predefined templates are beginning to bear fruit, a large portion of radiology report information is entered in free text. The free text format is a major obstacle for rapid extraction and subsequent use of information by clinicians, researchers, and healthcare information systems. This difficulty is due to the ambiguity and subtlety of natural language, complexity of described images, and variations among different radiologists and healthcare organizations. As a result, radiology reports are used only once by the clinician who ordered the study and rarely are used again for research and data mining. In this work, machine learning techniques and a large multi-institutional radiology report repository are used to extract the semantics of the radiology report and overcome the barriers to the re-use of radiology report information in clinical research and other healthcare applications. Material and methods We describe a machine learning system to annotate radiology reports and extract report contents according to an information model. This information model covers the majority of clinically significant contents in radiology reports and is applicable to a wide variety of radiology study types. Our automated approach uses discriminative sequence classifiers for named-entity recognition to extract and organize clinically significant terms and phrases consistent with the information model. We evaluated our information extraction system on 150 radiology reports from three major healthcare organizations and compared its results to a commonly used non

  19. Radiological protection report 2012

    International Nuclear Information System (INIS)

    2013-06-01

    Two years after the massive release of radiation from the nuclear power plants at Fukushima Dai-ichi, the repercussions continue to preoccupy the radiological and emergency protection community, both in Switzerland and internationally. In Switzerland the Swiss Federal Nuclear Safety Inspectorate (ENSI) has initiated measures as part of the European Union Stress Tests and has its own Fukushima Action Plan. In this Annual Report, ENSI focuses on radiological protection in Swiss nuclear facilities. The average individual dose has changed little compared with previous years. At 0.7 mSv, it is significantly below the limit both for persons exposed to radiation during their work (20 mSv) and the annual average rate of exposure for the population in Switzerland as a whole (5.5 mSv). In terms of collective doses, the extensive maintenance work at the Leibstadt power plant (KKL) resulted in a doubling of rates compared with recent years. However, in the remaining nuclear facilities the rates have not changed significantly. The highest individual dose during the year under review was 13 mSv. Exposure rates in 2012 for all those exposed to radiation during work in facilities subject to ENSI surveillance were below the maximum limit. Greater attention is now being given to work in high and variable radiation fields and in difficult conditions. Swiss nuclear facilities continue to operate a consistent radiological protection approach. Measuring equipment plays an important role in radiological protection. Having conducted a range of inspections and comparative measurements of aerosol-iodine filters and waste water sampling together with measurements in the field of personal dosimetry, ENSI has concluded that the required measuring equipment for radiological protection exists, that this equipment is correctly used and provides reliable data. ENSI maintains a test laboratory that analyses samples from nuclear facilities and their immediate vicinity and also conducts field

  20. Digital imaging in diagnostic radiology

    International Nuclear Information System (INIS)

    Newell, J.D. Jr.; Kelsey, C.A.

    1990-01-01

    This monograph on digital imaging provides a basic overview of this field at the present time. This paper covers clinical application, including subtraction angiography; chest radiology; genitourinary, gastrointestinal, and breast radiology; and teleradiology. The chest section also includes an explanation of multiple beam equalization radiography. The remaining chapters discuss some of the technical aspects of digital radiology. It includes the basic technology of digital radiography, image compression, and reconstruction information on the economics of digital radiography

  1. Fundamentals of radiological protection

    International Nuclear Information System (INIS)

    Charles, M.W.; Wells, J.; Mill, A.J.

    1978-04-01

    A brief review is presented of the early and late effects of ionising radiation on man, with particular emphasis on those aspects of importance in radiological protection. The terminology and dose response curves, are explained. Early effects on cells, tissues and whole organs are discussed. Late somatic effects considered include cancer and life-span shortening. Genetic effects are examined. The review is the third of a series of reports which present the fundamentals necessary for an understanding of the basis of regulatory criteria, such as those of the ICRP. (u.K.)

  2. Radiological evaluation of chondroblastoma

    Energy Technology Data Exchange (ETDEWEB)

    Hudson, T.M.; Hawkins, I.F. Jr.

    1981-04-01

    Eleven new and six recurrent chondroblastomas were studied with multiple radiological imaging methods (plain radiography, conventional tomography, computed tomography, radionuclide bone scanning, and angiography). When the plain radiographic appearance was typical, conventional tomography or computed tomography (CT) was helpful, but other studies were not. Periosteal reaction and angiographic hypervascularity were common and did not indicate cortical breakthrough. For large, aggressive, or atypical lesions, conventional tomography and CT were helpful in delineating anatomic extent, and angiography was of value in demonstrating major vessel displacement. Radionuclide bone scanning was not useful.

  3. Mortal radiological accident

    International Nuclear Information System (INIS)

    Gimenez, J.C.

    1987-01-01

    After defining the concept of 'Radiological accident', statistical data from Radiation Emergency Assistance Center of ORNL (United States of America) are given about the deaths caused by acute irradiation between 1944 and April 24, 1986 -ie, the day before Chernobyl nuclear accident- as well as on the number of deaths caused by the latter. Next the different clinical stages of the Acute Irradiation Syndrome (AIS) as well as its possible treatment are described, and finally the different physical, clinical and biological characteristics linked to the AIS and to its diagnosis and prognosis are discussed. (M.E.L.) [es

  4. Laenderyggens degeneration og radiologi

    DEFF Research Database (Denmark)

    Jacobsen, Steffen; Gosvig, Kasper Kjaerulf; Sonne-Holm, Stig

    2006-01-01

    Low back pain (LBP) is one of the most common conditions, and at the same time one of the most complex nosological entities. The lifetime prevalence is approximately 80%, and radiological features of lumbar degeneration are almost universal in adults. The individual risk factors for LBP and signi...... is cyclic: exacerbations relieved by asymptomatic periods. New imaging modalities, including the combination of MR imaging and multiplanar 3-D CT scans, have broadened our awareness of possible pain-generating degenerative processes of the lumbar spine other than disc degeneration....

  5. Radiology of syndromes

    International Nuclear Information System (INIS)

    Taybi, H.

    1982-01-01

    In the course of 20 years, the author has investigated the radiological aspects of many different syndromes. 541 of them are listed in this book, together with their typical X-ray pictures. Congenital deformities, genetic diseases, and acquired diseases with typical combinations of sigs and symptoms are presented with information on how to identify them. Clinical manifestations are briefly characterized, and hereditary aspects are mentioned. Pathological characteristics and names of the syndromes are presented. A bibliography is given for every syndrome for those who intend to deepen their knowledge. (orig./MG) [de

  6. Radiological aspects of Arthroplasties

    International Nuclear Information System (INIS)

    Garcia, Sara Eugenia; Barragan, John Henry; Narvaez, Jorge Andres

    2008-01-01

    The development of new surgical techniques, of new prosthetic materials, and the increase in life expectancy with greater coverage of health services has ugmented the performance of hip replacements in our country. The radiologist should be familiar with the different surgical techniques and prosthetic devices, the evaluation of its components and associated complications. The most frequently performed arthroplasties are: shoulder, elbow, hip and knee replacement. This article reviews the most frequent prosthetic devices used, the radiological aspects of arthroplasties and their most common complications.

  7. Radiological Protection Act 1970

    International Nuclear Information System (INIS)

    1970-01-01

    This Act provides for the establishment of a Radiological Protection Board to undertake research and advise on protection from radiation hazards. Its functions include provision of advice to Government departments with responsibilities in relation to protection of sectors of the community or the community as a whole against the hazards of ionizing radiation. The Act, which lays down that the Board shall replace certain departments concerned with radiation protection, repeals several Sections of the Radioactive Substances Act 1948 and the Science and Technology Act 1965. (NEA) [fr

  8. Radiological diagnosis of skeletal metastases

    International Nuclear Information System (INIS)

    Soederlund, V.

    1996-01-01

    The clinical management of patients with skeletal metastases puts new demands on imaging. The radiological imaging in screening for skeletal metastases entails detection, metastatic site description and radiologically guided biopsy for morphological typing and diagnosis. Regarding sensitivity and the ease in performing surveys of the whole skeleton, radionuclide bone scintigraphy still is the first choice in routine follow-up of asymptomatic patients with metastatic disease of the skeleton. A negative scan has to be re-evaluated with other findings, with emphasis on the possibility of a false-negative result. Screening for metastases in patients with local symptoms or pain is best accomplished by a combination of radiography and MRI. Water-weighted sequences are superior in sensitivity and in detection of metastases. Standard spin-echo sequences on the other hand are superior in metastatic site description and in detection of intraspinal metastases. MRI is helpful in differentiating between malignant disease, infection, benign vertebral collapse, insufficiency fracture after radiation therapy, degenerative vertebral disease and benign skeletal lesions. About 30% of patients with known cancer have benign causes of radiographic abnormalities. Most of these are related to degenerative diseases and are often easily diagnosed. However, due to overlap in MRI characteristics, bone biopsy sometimes is essential for differentiating between malignant and nonmalignant lesions. Performing bone biopsy and aspiration cytology by radiologist and cytologist in co-operation has proven highly accurate in diagnosing bone lesions. The procedure involves low risk to the patient and provides a morphological diagnosis. Once a suspected metastatic lesion is detected, irrespective of modality, the morphological diagnosis determines the appropriate work-up imaging with respect to the therapy alternatives. (orig./VHE)

  9. The Radiological Research Accelerator Facility

    International Nuclear Information System (INIS)

    Hall, E.J.; Marino, S.A.

    1990-07-01

    The Radiological Research Accelerator Facility (RARAF) is based on a 4-MV Van de Graaff accelerator, which is used to generate a variety of well-characterized radiation beams for research in radiobiology, radiological physics, and radiation chemistry. It is part of the Center for Radiological Research (CRR) -- formerly the Radiological Research Laboratory (RRL) -- of Columbia University, and its operation is supported as a National Facility by the US Department of Energy (DOE). Fifteen different experiments were run during these 12 months, approximately the same as the previous two years. Brief summaries of each experiment are included. Accelerator usage is summarized and development activities are discussed. 7 refs., 4 tabs

  10. Radiological Calibration and Standards Facility

    Data.gov (United States)

    Federal Laboratory Consortium — PNNL maintains a state-of-the-art Radiological Calibration and Standards Laboratory on the Hanford Site at Richland, Washington. Laboratory staff provide expertise...

  11. Educational course in emergency radiology

    International Nuclear Information System (INIS)

    Velkova, K.; Stoeva, M.; Cvetkova, S.; Hilendarov, A.; Petrova, A.; Stefanov, P.; Simova, E.; Georgieva, V.; Sirakov, N.

    2012-01-01

    Emergency radiology is the part of radiology primarily focused on acute diagnosing conditions in ER patients. This advanced area of radiology improves the quality of care and treatment of patients and of the emergency medicine as a whole. The educational course in Emergency (ER) Radiology is available for medical students in their 8th and 9th semester. The main objective of the ER course is to obtain knowledge about the indications, possibilities and diagnostic value of the contemporary imaging methods in ER cases. Therapeutic methods under imaging control are also covered by the course. The curriculum of the course consists of 6 lectures and 12 practical classes. (authors)

  12. Flemish general dental practitioners' knowledge of dental radiology

    OpenAIRE

    Aps, J K M

    2010-01-01

    The aim of this study was to assess general dental practitioners' knowledge of dental radiography and radiation protection in order to alert the Belgian authorities and dental professional societies. Prior to attending a postgraduate course on intraoral radiology, general dental practitioners in Flanders, Belgium, were asked to fill in a questionnaire regarding the radiological equipment and the techniques they used for intraoral radiography. The availability and type of dental panoramic equi...

  13. Sexual Harassment in Radiology.

    Science.gov (United States)

    Camargo, Aline; Liu, Li; Yousem, David M

    2017-08-01

    To gauge the prevalence of sexual harassment (SH) and to understand the issues regarding its disclosure among radiologists. A questionnaire on ethics and SH was sent by e-mail to 1,569 radiologists and radiology trainees in an institutional database maintained for continuing medical education purposes on three separate occasions between September 17 and October 31, 2016. The link to the survey was also posted on social media sites via the authors' divisional and institutional accounts on Facebook, Twitter, Instagram, and Aunt Minnie, as well as on ACR and RSNA web blogs. Overall, 9.75% (39 of 400) respondents stated they had suffered SH, with more female (22 of 90 = 24.4%) than male victims (11 of 249 = 4.4%) (P sexual harassment but are less likely to report such cases. Steps need to be taken to eliminate a culture that leads radiologists to tolerate SH without addressing it. Copyright © 2017 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  14. Radiology illustrated. Spine

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Heung Sik; Lee, Joon Woo [Seoul National Univ. Bundang Hospital, Seongnam, Kyonggi-do (Korea, Republic of). Dept. of Radiology; Kwon, Jong Won [Samsung Medical Center, Seoul (Korea, Republic of). Dept. of Radiology

    2014-04-01

    Offers a practical approach to image interpretation for spinal disorders. Includes numerous high-quality radiographic images and schematic illustrations. Will serve as a self-learning book covering daily routine cases from the basic to the advanced. Radiology Illustrated: Spine is an up-to-date, superbly illustrated reference in the style of a teaching file that has been designed specifically to be of value in clinical practice. Common, critical, and rare but distinctive spinal disorders are described succinctly with the aid of images highlighting important features and informative schematic illustrations. The first part of the book, on common spinal disorders, is for radiology residents and other clinicians who are embarking on the interpretation of spinal images. A range of key disorders are then presented, including infectious spondylitis, cervical trauma, spinal cord disorders, spinal tumors, congenital disorders, uncommon degenerative disorders, inflammatory arthritides, and vascular malformations. The third part is devoted to rare but clinically significant spinal disorders with characteristic imaging features, and the book closes by presenting practical tips that will assist in the interpretation of confusing cases.

  15. Patient-centered Radiology.

    Science.gov (United States)

    Itri, Jason N

    2015-10-01

    Patient-centered care (ie, care organized around the patient) is a model in which health care providers partner with patients and families to identify and satisfy patients' needs and preferences. In this model, providers respect patients' values and preferences, address their emotional and social needs, and involve them and their families in decision making. Radiologists have traditionally been characterized as "doctor-to-doctor" consultants who are distanced from patients and work within a culture that does not value patient centeredness. As medicine becomes more patient driven and the trajectory of health care is toward increasing patient self-reliance, radiologists must change the perception that they are merely consultants and become more active participants in patient care by embracing greater patient interaction. The traditional business model for radiology practices, which devalues interaction between patients and radiologists, must be transformed into a patient-centered model in which radiologists are reintegrated into direct patient care and imaging processes are reorganized around patients' needs and preferences. Expanding radiology's core assets to include direct patient care may be the most effective deterrent to the threat of commoditization. As the assault on the growth of Medicare spending continues, with medical imaging as a highly visible target, radiologists must adapt to the changing landscape by focusing on their most important consumer: the patient. This may yield substantial benefits in the form of improved quality and patient safety, reduced costs, higher-value care, improved patient outcomes, and greater patient and provider satisfaction. © RSNA, 2015.

  16. Radiological protection report 2010

    International Nuclear Information System (INIS)

    2011-01-01

    This is the 7 th Annual Report of the Swiss Federal Nuclear Safety Inspectorate (ENSI) on radiological protection in Swiss nuclear facilities. Section A deals with doses for staff and individual jobs and Section B covers releases from nuclear facilities and the monitoring of environmental radioactivity in their immediate vicinity. The year under review was again marked by an event classified by ENSI as Level 2 on the INES Scale. During maintenance work in the fuel-assembly transfer system at the Leibstadt nuclear power station, a diver recovered a pipe-like object. The object, which was highly radioactive, was the end piece from a jacketed pipe previously removed from the in-core instrumentation. Subsequent investigations showed that the diver had been exposed to a hand dose of 7.5 Sv and a complete-body dose of 28 mSv, both in excess of the annual limits specified in the Swiss Radiological Protection Ordinance. As with the INES-2 event in 2009, this event showed that particular attention is required when working with high and variable radiation fields. In terms of radiological protection, a range of measures must be introduced as a matter of urgency, including for example, measures to ensure that acoustic alarms and warnings from electronic dosimeters are audible immediately even under difficult working conditions. In addition, there needs to be a systematic identification of radiation fields and this information must be made available to all concerned. Neither collective nor average individual doses have changed significantly in recent years. The average individual dose for personnel in nuclear facilities is now 0.7 mSv. This is significantly lower than both the maximum annual limit for persons exposed to radiation in the course of their work and the average annual rate of exposure to radon for the population in Switzerland as a whole (3.2 mSv). The maximum individual dose in the Leibstadt nuclear power plant was 28 mSv. The maximum dose rate at the Goesgen

  17. Attention for pediatric interventional radiology

    International Nuclear Information System (INIS)

    Zhu Ming; Cheng Yongde

    2005-01-01

    Radiological interventions possess wide utilization in the diagnosis and treatment for pediatric patients. Pediatric interventional radiology is an important branch of interventional radiology and also an important branch of pediatric radiology. Pediatric interventional radiology has grown substantially over the last 30 years, radiologists closely cooperation with surgeons and other physicians providing a new horizon in the management of pediatric diseases in western countries. It includes pediatric cardiac interventional radiology, pediatric neuro-interventional radiology, pediatric vascular interventional radiology, pediatric nonvascular interventional radiology, pediatric tumor interventional radiology and others. In the United States, every children hospital which owns two hundred beds has to have special trained interventional radiologists in radiologic department installing with advanced digital subtraction angiographic equipment. Interventional therapeutic procedures and diagnostic angiography have been proceeding more and more for the congenital and acquired diseases of children. The promising results give use uprising and interventional therapy as an alternative or a replacement or supplement to surgical operation. Pediatric interventional radiology is rather underdeveloped in China with a few special pediatric interventional radiologist, lack of digital subtraction angiography equipment. Pediatric radiologists have no enough field for interventional procedures such as pediatric neuro-interventional radiology and pediatric vascular interventional radiology. In the contrary adult interventional radiologists do have better interventional jobs in China and Pediatric cardiologists also share the same trend. They perform angiocardiography for congenital heart diseases and treat congenital heart disease with interventional procedures including balloon dilation of valves and vessels, coil embolization of collaterals, patent ducts and other arterial fistulae

  18. Global view on the radiological protection of patients: PAHO position paper

    International Nuclear Information System (INIS)

    Borras, C.

    2001-01-01

    The Pan American Health Organization/World Health Organization (PAHO/WHO), founded in 1902, initiated a radiological health programme in the 1950s. Within this programme, there are currently three lines of work: (a) radiology services; (b) radiation safety; and (c) radiological emergencies. Radiology services deals with health services for diagnostic and interventional imaging, and for radiation therapy. Radiation safety studies the three types of exposures to both ionizing and non-ionizing radiation: occupational; medical; and public. Radiological emergencies involve radioactive waste management programmes and emergency plans. The radiological protection of patients is addressed in each of these areas: (a) when analysing the infrastructure of radiology services; and (b) when determining medical exposures; and (c) when investigating overexposures in interventional or therapeutic procedures or under-doses in radiation therapy. (author)

  19. Archives: SA Journal of Radiology

    African Journals Online (AJOL)

    Items 1 - 47 of 47 ... Archives: SA Journal of Radiology. Journal Home > Archives: SA Journal of Radiology. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives. 1 - 47 of 47 Items. 2017 ...

  20. Suspected clinical-radiological discord

    African Journals Online (AJOL)

    him to the hospital. The purpose of this case presentation is to share some challenges of a clinical-radiological discord in a teaching hospital in Zimbabwe. It shows a flow of teamwork from. House Officers to the Consultants as well as radiological back up. Case presentation. A seventeen-year old male student was seen in ...

  1. Speech recognition implementation in radiology

    International Nuclear Information System (INIS)

    White, Keith S.

    2005-01-01

    Continuous speech recognition (SR) is an emerging technology that allows direct digital transcription of dictated radiology reports. The SR systems are being widely deployed in the radiology community. This is a review of technical and practical issues that should be considered when implementing an SR system. (orig.)

  2. Handbooks in radiology: Nuclear medicine

    International Nuclear Information System (INIS)

    Datz, F.L.

    1988-01-01

    This series of handbooks covers the basic facts, major concepts and highlights in seven radiological subspecialties. ''Nuclear Medicine'' is a review of the principles, procedures and clinical applications that every radiology resident and practicing general radiologist should know about nuclear medicine. Presented in an outline format it covers all of the organ systems that are imaged by nuclear medicine

  3. West African Journal of Radiology

    African Journals Online (AJOL)

    The West African Journal of Radiology is an annual publication and the official organ of the Association of Radiologists of West Africa. The Journal accepts for publication, original work in the Science and Technology of Radiology, clinical case reports, discoveries and engineering design/fabrication reports related to any ...

  4. Marks in Latin-American radiology

    International Nuclear Information System (INIS)

    Souza Almeida, S. de.

    1987-01-01

    An historical retrospective of Latin-American radiology is shortly presented. Several radiologic societies as well as personalities, scientists and doctors are reported emphasizing their contribuition to radiologic Latin-American culture. (M.A.C.) [pt

  5. Federal support of radiological research

    International Nuclear Information System (INIS)

    Hendee, W.R.

    1981-01-01

    Pervading the plans and objective outlined herein for continued and enhanced federal support of research in radiology is a challenge of unparalleled magnitude, for the economic foundation on which this support is based has rarely been more precarious. The new administration in Washington may well be the most fiscally constrained in half a century, and its stated interest in reducing federal expenditures could have disastrous consequences for the scientific research effort in this country, including that in radiology and the radiological sciences. The circumvention of these consequences may well require the dedicated effort of the entire scientific community over the next few months and years, including that part representing radiology and the radiological sciences

  6. Radiological studies on Egyptian mummies

    International Nuclear Information System (INIS)

    Pahl, W.M.

    1982-01-01

    The goal of this work as part of a mummy study project is to obtain the maximum amount of information through radiological methods with the minimum destruction of the object. For this proven radiological methods were used as well as conventional radiological methods which had not yet been used with mummy research and modern radiological methods using an electronic basis relative to their importance for the study of medical archaeological materials. It is shown that the knowledge which is gained from the use of a combination of classical radiological methods and computed tomography cannot be enhanced by an autopsy of the study objects. Since because of this the objects can be kept in their original condition, a later checking of the results is guaranteed with the possibility of clearing up remaining open questions by means of further developed methods. (orig.) [de

  7. Radiological Work Planning and Procedures

    CERN Document Server

    Kurtz, J E

    2000-01-01

    Each facility is tasked with maintaining personnel radiation exposure as low as reasonably achievable (ALARA). A continued effort is required to meet this goal by developing and implementing improvements to technical work documents (TWDs) and work performance. A review of selected TWDs from most facilities shows there is a need to incorporate more radiological control requirements into the TWD. The Radioactive Work Permit (RWP) provides a mechanism to place some of the requirements but does not provide all the information needed by the worker as he/she is accomplishing the steps of the TWD. Requiring the engineers, planners and procedure writers to put the radiological control requirements in the work steps would be very easy if all personnel had a strong background in radiological work planning and radiological controls. Unfortunately, many of these personnel do not have the background necessary to include these requirements without assistance by the Radiological Control organization at each facility. In add...

  8. Radiologic aspects of epiphysial dysplasia in adults

    Energy Technology Data Exchange (ETDEWEB)

    Andreeva, V.F. (Leningradskij Inst. Usovershenstvovaniya Vrachej (USSR))

    The results of radiologic examination of 40 patients aged 15 to 64 years with epiphysial (spondyloepiphysial) displasia, adequate in manifestness to developmental anomaly are analyzed. The radiologic examination involved standard radiographs in standard and atypical projections, radiography with direct enlargement of X-ray appearance, and tomography. Various types of epiphysial deformation have been distinguished as a manifest feature of the above-mentioned dysplastic process. Possible combinations of the tubular bones epiphysial hypoplasia with the damage of other articular components are pointed out. Concomitant degenerative-dystrophic processes are characterized as deforming arthrosis, degenerative-dystrophic lesions with cystoid reconstruction of the articulating bones, and aseptic epiphysial necrosis. X-ray picture of the degenerative-dystrophic lesion with cystoid reconstruction of the hinging bones is disclosed most comprehensively.

  9. Radiologic aspects of epiphysial dysplasia in adults

    International Nuclear Information System (INIS)

    Andreeva, V.F.

    1982-01-01

    The results of radiologic examination of 40 patients aged 15 to 64 years with epiphysial (spondyloepiphysial) displasia, adequate in manifestness to developmental anomaly are analyzed. The radiologic examination involved standard radiographs in standard and atypical projections, radiography with direct enlargement of X-ray appearance, and tomography. Various types of epiphysial deformation have been distinguished as a manifest feature of the above-mentioned dysplastic process. Possible combinations of the tubular bones epiphysial hypoplasia with the damage of other articular components are pointed out. Concomitant degenerative-dystrophic processes are characterized as deforming arthrosis, degenerative-dystrophic lesions with cystoid reconstruction of the articulating bones, and aseptic epiphysial necrosis. X-ray picture of the degenerative-dystrophic lesion with cystoid reconstruction of the hinging bones is disclosed most comprehensively

  10. Radiology of renal failure

    International Nuclear Information System (INIS)

    Griffiths, H.J.

    1990-01-01

    This book covers most aspects of imaging studies in patients with renal failure. The initial chapter provides basic information on contrast agents, intravenous urography, and imaging findings in the urinary tract disorders responsible for renal failure and in patients who have undergone transplantation. It illustrates common gastro-intestinal abnormalities seen on barium studies in patients with renal failure. It illustrates the cardiopulmonary complications of renal failure and offers advice for radiologic differentiation. It details different aspects of skeletal changes in renal failure, including a basic description of the pathophysiology of the changes; many excellent illustrations of classic bone changes, arthritis, avascular necrosis, and soft-tissue calcifications; and details of bone mineral analysis

  11. Radiology in veterinary medicine

    International Nuclear Information System (INIS)

    Hrusovsky, J.; Benes, J.

    1985-01-01

    A textbook is presented for pregraduate and postgraduate students of veterinary medicine, offering an extensive review of all aspects of radiology as applied in veterinary sciences. Based on findings published in the literature and the authors' own research, the textbook familiarizes the reader with the problems of nuclear physics, biological effects of ionizing radiation on animals, the principles of biological cycles of radionuclides in the atmosphere, the fundamentals of radiochemistry, dosimetry, radiometry and nuclear medicine. Radiation protection of animals, raw materials, feeds, foodstuff and water, and the questions of the aplications of ionizing radiation and of radionuclides in veterinary medicine are discussed in great detail. The publication is complemented with numerous photographs, figures and graphs. (L.O.)

  12. Trochanteric bursitis: radiological findings

    International Nuclear Information System (INIS)

    Revilla, T.Y.; Manjon, P.; Lozaono, C.

    1997-01-01

    To describe the radiological findings associated with trochanteric bursitis. Six patients studied by means of plain radiography (n=6), CT(n=4) and MR(n=2). The conventional radiography study was normal in two patients and disclosed bone abnormalities in four. US showed a hypoechoic or anechoic collection in all the patients. Two patients presented areas suggestive of calcification, and septa were observed in one. CT disclosed the presence of well defined, low-attenuation, unenhanced collections. MR images identified collections with a signal intensity similar to that of water. Trochanteric bursitis is a relatively common cause of hip pain, and can involve any one of a number of etiologies. US is a good imaging technique for diagnosing this pathology. (Author) 10 refs

  13. Risks from dental radiology

    International Nuclear Information System (INIS)

    Costa, Tamara Goularte

    2013-01-01

    The objective of this research is to demonstrate the risks and consequences of exposure to dental X-ray. The methodology used was the survey of bibliographic literature on this matter. First, we tried to understand the operation and characteristics of dental X-rays. Afterwards, we tried to know about the risks that this procedure offers to workers and patients. And concluded with the consequences of such exposure. The results showed that dental x-rays only offer risks in prolonged exposure, can affect the worker or patient to pathologies such as cancer or a life-time decreased due to the stochastic effect. Therefore, radiological protection standards must be respected and practised. (author)

  14. Radiology of the breasts

    International Nuclear Information System (INIS)

    Meschan, I.; Bertrand, M.

    1987-01-01

    Although the breasts are visualized on conventional chest radiographs, detail is insufficient for accurate imaging, and as a result, mammography for optimum detail has been developed. Ductograms (galactograms) are used in selected cases with serous or blood discharge from the nipples. This discussion of mammography concerns itself with the following: 1. Some of the epidemiologic aspects of breast cancer (particularly in females). 2. The controversy concerning radiation in mammography. 3. The radiologic techniques of examination of the breast-with brief mention of other methods of imaging. 4. The roentgen signs of abnormality as observed radiographically and how these signs are related to the pathologic aspects of disease of the breast, some of which are controversial. 5. Tabulation of roentgen signs and morphology into lesions that are definitely benign, definitely malignant, and indeterminate, requiring biopsy

  15. Radiologic findings in neurofibromatosis

    International Nuclear Information System (INIS)

    Kim, Dai Young; Jeon, Seok Chol; Lee, Kwan Se; Yeon, Kyung Mo; Choo, Dong Woon

    1979-01-01

    Neurofibromatosis is an uncommon but certainly not a rare hereditary disorder, probably of neuralcrest origin, involving not only neuroectoderm and mesoderm but also endoderm and characterized by cafe au lait spots and cutaneous and subcutaneous tumors, with secondary mesodermal defects responsible for protean osseous abnormalities and various manifestations in other systems. This paper is a study of confirmed 143 cases of neurofibromatosis collected for past 8 years. In this analysis, special attention was given to the selected 37 cases which showed abnormal findings on radiological examinations. Overall male to female ratio was 1 : 1.3. The most frequent kind of abnormalities was vertebral kyphoscoliosis in 12 cases. Among the more pathognomonic but uncommon abnormalities to neurofibromatosis, we experienced each 2 cases of lambdoid defect, pseudoarthrosis and renovascular hypertension, and 1 cases of sphenoid bone absence.

  16. Radiology of osteoporosis

    International Nuclear Information System (INIS)

    Grampp, S.

    2008-01-01

    This second edition of Radiology of Osteoporosis has been fully updated so as to represent the current state of the art. It provides a comprehensive overview of osteoporosis, the pathologic conditions that give rise to osteoporosis, and the complications that are frequently encountered. After initial chapters devoted to pathophysiology, the presentation of osteoporosis on conventional radiographs is illustrated and discussed. Thereafter, detailed consideration is given to each of the measurement methods employed to evaluate osteoporosis, including dual x-ray absorptiometry, vertebral morphometry, spinal and peripheral quantitative computed tomography, quantitative ultrasound, and magnetic resonance imaging. The role of densitometry in daily clinical practice is appraised. Finally, a collection of difficult cases involving pitfalls is presented, with guidance to their solution. The information contained in this volume will be invaluable to all with an interest in osteoporosis. (orig.)

  17. Case based dental radiology.

    Science.gov (United States)

    Niemiec, Brook A

    2009-02-01

    Dental radiology is quickly becoming integral to the standard of care in veterinary dentistry. This is not only because it is critical for proper patient care, but also because client expectations have increased. Furthermore, providing dental radiographs as a routine service can create significant practice income. This article details numerous conditions that are indications for dental radiographs. As you will see, dental radiographs are often critical for proper diagnosis and treatment. These conditions should not be viewed as unusual; they are present within all of our practices. When you choose not to radiograph these teeth, you leave behind painful pathology. Utilizing the knowledge gained from dental radiographs will both improve patient care and increase acceptance of treatment recommendations. Consequently, this leads to increased numbers of dental procedures performed at your practice.

  18. Radiological anatomy - evaluation of integrative education in radiology.

    Science.gov (United States)

    Dettmer, S; Schmiedl, A; Meyer, S; Giesemann, A; Pabst, R; Weidemann, J; Wacker, F K; Kirchhoff, T

    2013-09-01

    Evaluation and analysis of the integrative course "Radiological Anatomy" established since 2007 at the Medical School Hannover (MHH) in comparison with conventional education. Anatomy and radiology are usually taught separately with a considerable time lag. Interdisciplinary teaching of these associated subjects seems logical for several reasons. Therefore, the integrative course "Radiological Anatomy" was established in the second year of medical education, combining these two closely related subjects. This interdisciplinary course was retrospectively evaluated by consideration of a student questionnaire and staff observations. The advantages and disadvantages of integrative teaching in medical education are discussed. The course ratings were excellent (median 1; mean 1.3 on a scale of 1 to 6). This is significantly (p radiology increased during the course (88 %). According to the students' suggestions the course was enhanced by a visitation in the Department of Radiology and the additional topic central nervous system. Integrative teaching of anatomy and radiology was well received by the students. Both, anatomical and radiological comprehension and the motivation to learn were improved. However, it should be considered, that the amount of work and time required by the teaching staff is considerably increased compared to traditional teaching. © Georg Thieme Verlag KG Stuttgart · New York.

  19. Radiology of bacterial pneumonia

    Energy Technology Data Exchange (ETDEWEB)

    Vilar, Jose E-mail: vilar_jlu@gva.es; Domingo, Maria Luisa; Soto, Cristina; Cogollos, Jonathan

    2004-08-01

    Bacterial pneumonia is commonly encountered in clinical practice. Radiology plays a prominent role in the evaluation of pneumonia. Chest radiography is the most commonly used imaging tool in pneumonias due to its availability and excellent cost benefit ratio. CT should be used in unresolved cases or when complications of pneumonia are suspected. The main applications of radiology in pneumonia are oriented to detection, characterisation and follow-up, especially regarding complications. The classical classification of pneumonias into lobar and bronchial pneumonia has been abandoned for a more clinical classification. Thus, bacterial pneumonias are typified into three main groups: Community acquired pneumonia (CAD), Aspiration pneumonia and Nosocomial pneumonia (NP).The usual pattern of CAD is that of the previously called lobar pneumonia; an air-space consolidation limited to one lobe or segment. Nevertheless, the radiographic patterns of CAD may be variable and are often related to the causative agent. Aspiration pneumonia generally involves the lower lobes with bilateral multicentric opacities. Nosocomial Pneumonia (NP) occurs in hospitalised patients. The importance of NP is related to its high mortality and, thus, the need to obtain a prompt diagnosis. The role of imaging in NP is limited but decisive. The most valuable information is when the chest radiographs are negative and rule out pneumonia. The radiographic patterns of NP are very variable, most commonly showing diffuse multifocal involvement and pleural effusion. Imaging plays also an important role in the detection and evaluation of complications of bacterial pneumonias. In many of these cases, especially in hospitalised patients, chest CT must be obtained in order to better depict these associate findings.

  20. Radiology of bacterial pneumonia

    International Nuclear Information System (INIS)

    Vilar, Jose; Domingo, Maria Luisa; Soto, Cristina; Cogollos, Jonathan

    2004-01-01

    Bacterial pneumonia is commonly encountered in clinical practice. Radiology plays a prominent role in the evaluation of pneumonia. Chest radiography is the most commonly used imaging tool in pneumonias due to its availability and excellent cost benefit ratio. CT should be used in unresolved cases or when complications of pneumonia are suspected. The main applications of radiology in pneumonia are oriented to detection, characterisation and follow-up, especially regarding complications. The classical classification of pneumonias into lobar and bronchial pneumonia has been abandoned for a more clinical classification. Thus, bacterial pneumonias are typified into three main groups: Community acquired pneumonia (CAD), Aspiration pneumonia and Nosocomial pneumonia (NP).The usual pattern of CAD is that of the previously called lobar pneumonia; an air-space consolidation limited to one lobe or segment. Nevertheless, the radiographic patterns of CAD may be variable and are often related to the causative agent. Aspiration pneumonia generally involves the lower lobes with bilateral multicentric opacities. Nosocomial Pneumonia (NP) occurs in hospitalised patients. The importance of NP is related to its high mortality and, thus, the need to obtain a prompt diagnosis. The role of imaging in NP is limited but decisive. The most valuable information is when the chest radiographs are negative and rule out pneumonia. The radiographic patterns of NP are very variable, most commonly showing diffuse multifocal involvement and pleural effusion. Imaging plays also an important role in the detection and evaluation of complications of bacterial pneumonias. In many of these cases, especially in hospitalised patients, chest CT must be obtained in order to better depict these associate findings

  1. Radiologic discussion on Klebsiella pneumonia in 89 cases

    International Nuclear Information System (INIS)

    Zhang Chunsheng; Li Xuejun; Tai Hanzhen; Wang Guohua; Qi Shi

    2007-01-01

    Objective: To evaluate the diagnostic value of radiology and CT scanning in Klebsiella pneumoniae. Methods: The clinical, radiologic data and CT films of 89 patients with Klebsiella pneumoniae were retrospectively analyzed. Results: Three types of chest X-ray and computed tomography (CT) findings for Klebsiella pneumonia were found. (1)Increased pulmonary markings occured in 31 cases. (2)35 cases with single lesions showed frequently involvement in the upper or lower lobe of right lung. When lesion was involved in the upper lobe, it developed oblique fissure shift down in radiology films and represent stalactitic symptom in CT imagining. (3)In 23 cases with Klebsiella pneumonia showed typical cavitary lung abscesses. Conclusion: The radiologic findings of Klebsiella pneumoniae were complicated and hard to make a good diagnosis. Combined the imaging features with the clinic data, sometimes, we can get the right diagnosis in some cases with typical Klebsiella pneumoniae. (authors)

  2. Radiological protection report 2016

    International Nuclear Information System (INIS)

    2017-06-01

    In the radiological protection report 2016, the Swiss Federal Nuclear Safety Inspectorate (ENSI) provides an overview of the radiological protection in its area of supervision. Part A of the report deals with protecting the staff of nuclear power plants from the dangers of ionising radiation. It also includes a list of the personal doses accumulated by the staff, broken down using various parameters. Applying the optimisation imperative, it has been proved possible to significantly reduce the annual collective doses in Switzerland's nuclear power plants since they came on stream thanks to major efforts by the operators. In 2016, a total of 6,153 people measured accumulated 2,877 person-mSv. The collective doses have reached a low level corresponding to the radiological condition of the plants and the scope of the work required to be performed in controlled zones (e.g. non-destructive materials testing). ENSI will continue to follow the trend for collective doses and assess the reasons for local variances as well as for measures initiated. The individual doses for people employed in ENSI's area of supervision in 2016 showed a maximum figure of 10 mSv and a mean value of 0.5 mSv which was significantly below the dose limit of 20 mSv for occupational radiation exposure. The discharge of radioactive substances with the exhaust air and waste water from nuclear power plants are dealt with in Part B of the report. In 2016, nuclear power plant operators again met the admissible release limits set by the authorities, in some cases by a considerable margin. The emissions of Swiss nuclear power plants led to a dose of less than 0.01 mSv per year in the direct neighbourhood. A comparison with the average annual radiation dose for the Swiss population of 5.5 mSv shows that the relevant contribution from nuclear power plants lies in the area of one percent of this figure. Effluents from Swiss nuclear power plants were also below the target of 1 GBq per year set by ENSI

  3. Radiology and the mobile device: Radiology in motion

    International Nuclear Information System (INIS)

    Panughpath, Sridhar G; Kalyanpur, Arjun

    2012-01-01

    The use of mobile devices is revolutionizing the way we communicate, interact, are entertained, and organize our lives. With healthcare in general and radiology in particular becoming increasingly digital, the use of such devices in radiologic practice is inevitable. This article reviews the current status of the use of mobile devices in the clinical practice of radiology, namely in emergency teleradiology. Technical parameters such as luminance and resolution are discussed. The article also discusses the benefits of such mobility vis-à-vis the current limitations of the technologies available

  4. Planning new basic guideline to the radiological risk. Content, radiological criteria and implementation; Nueva direcctriz basica de planificacion ante el riesgo radiologico. Contenido, criterio radiologicos e implantacion

    Energy Technology Data Exchange (ETDEWEB)

    Calvin Cuartero, M.; Vega Riber, R. de la; Martin Calvarro, J. M.

    2011-07-01

    The most important aspects of the Basic Guideline focus on their area of planning, groups of potential radiological emergencies in the type of activity associated with the levels of response planning and responsible organizations, structure and functions for each level, radiological criteria, implementation and maintenance of the effectiveness of the level of response plans abroad.

  5. The Role of Current Emergency Radiology Practice: A prospective ...

    African Journals Online (AJOL)

    East and Central African Journal of Surgery ... demographic variables, clinical diagnosis, radiologic diagnosis, type of investigation used, type of anatomic area imaged, whether primary investigation used or not, ... Conclusion: Plain radiography was used as the cornerstone investigative modality for emergency imaging.

  6. Effective radiological safety program for electron linear accelerators

    International Nuclear Information System (INIS)

    Swanson, W.P.

    1980-10-01

    An outline is presented of some of the main elements of an electron accelerator radiological safety program. The discussion includes types of accelerator facilities, types of radiations to be anticipated, activity induced in components, air and water, and production of toxic gases. Concepts of radiation shielding design are briefly discussed and organizational aspects are considered as an integral part of the overall safety program

  7. Characteristics and trends of radiology research: a survey of original articles published in AJR and Radiology between 2001 and 2010.

    Science.gov (United States)

    Lim, Kyoung Ja; Yoon, Dae Young; Yun, Eun Joo; Seo, Young Lan; Baek, Sora; Gu, Dong Hyeon; Yoon, Soo Jeong; Han, Ari; Ku, You Jin; Kim, Sam Soo

    2012-09-01

    To determine the characteristics and trends of the original articles published in two major American radiology journals, AJR American Journal of Roentgenology (AJR) and Radiology, between 2001 and 2010. This was a retrospective bibliometric analysis that did not involve human subjects and was exempt from institutional review board approval. All 6542 original articles published in AJR and Radiology between 2001 and 2010 were evaluated. The following information was abstracted from each article: radiologic subspecialty, radiologic technique used, type of research, sample size, study design, statistical analysis, study outcome, declared funding, number of authors, affiliation of the first author, and country of the first author. In addition, all the variables examined were presented along with the trend over time. The most common subspecialty of study was abdominal (1219 of 6542, 18.6%), followed by vascular/interventional (804 of 6542, 12.3%). A total of 3744 (57.2%) original articles used magnetic resonance (MR) imaging or computed tomography (CT), 5495 (84.1%) were clinical research articles, 3060 (46.8%) had sample size of more than 50, 4087 (62.5%) were retrospective, 4714 (72.1%) performed statistical analysis, 6225 (95.2%) showed positive study outcome, 4784 (73.1%) were not funded, 3942 (60.3%) had four to seven authors, and 5731 (87.6%) were written by the primary author who was from a department of radiology or radiology-related specialties. The United States published 45.5% (2975 of 6542) of the articles, followed by Japan (n = 525, 8.0%), Germany (n = 485, 7.4%), and South Korea (n = 455, 7.0%). In the time trend analysis, the following variables showed a significantly positive trend: cardiac subspecialty, CT and MR imaging as the radiologic techniques, type of research as other (nonbasic, nonclinical), sample size of more than 50, four to seven as the number of authors, medicine-related department of the first author, and South Korea and Italy as

  8. Radiological characterisation - Know your objective

    International Nuclear Information System (INIS)

    Lindow, Veronica; Moeller, Jennifer

    2012-01-01

    When developing a programme for mapping the radiological characteristics of a facility to be decommissioned it is important to take into account the objectives of the programme. Will the results be used to plan for radiological control and selection of appropriate decontamination and dismantling techniques? Will the radiological inventory be used for dimensioning of future waste repositories? These are two examples of the applications for such studies, which could require that a radiological characterisation programme be adapted to provide the data appropriate to the intended use. The level of detail and scope needed for a radiological characterisation will also vary depending on how the data will be used. An application to free-release a facility requires a comprehensive survey and well documented analysis in order to ensure that no radioactive contamination above prescribed levels is present. A bounding calculation to determine the maximum anticipated volumes and activity of radioactive waste requires a different approach. During the past few years, older decommissioning studies for the Swedish nuclear power plants have been updated (or are in the process of being updated). The decommissioning study's main purpose is to estimate the cost for decommissioning. The cost estimation is based on material and activity inventories, which in turn is based on previous and, in some cases, updated radiological characterisations of the facilities. The radiological inventory is an important part of the study as it affects the cost of decommissioning but also the uncertainties and accuracy of the cost estimation. The presentation will discuss the challenges in specifying a radiological characterisation programme with multiple objectives, together with insights on how data delivered can be applied to yield results suitable for the intended purpose, without introducing excessive conservatism. The intent of the presentation is to define issues that can be of use in various aspects

  9. Diagnostic errors in pediatric radiology

    International Nuclear Information System (INIS)

    Taylor, George A.; Voss, Stephan D.; Melvin, Patrice R.; Graham, Dionne A.

    2011-01-01

    Little information is known about the frequency, types and causes of diagnostic errors in imaging children. Our goals were to describe the patterns and potential etiologies of diagnostic error in our subspecialty. We reviewed 265 cases with clinically significant diagnostic errors identified during a 10-year period. Errors were defined as a diagnosis that was delayed, wrong or missed; they were classified as perceptual, cognitive, system-related or unavoidable; and they were evaluated by imaging modality and level of training of the physician involved. We identified 484 specific errors in the 265 cases reviewed (mean:1.8 errors/case). Most discrepancies involved staff (45.5%). Two hundred fifty-eight individual cognitive errors were identified in 151 cases (mean = 1.7 errors/case). Of these, 83 cases (55%) had additional perceptual or system-related errors. One hundred sixty-five perceptual errors were identified in 165 cases. Of these, 68 cases (41%) also had cognitive or system-related errors. Fifty-four system-related errors were identified in 46 cases (mean = 1.2 errors/case) of which all were multi-factorial. Seven cases were unavoidable. Our study defines a taxonomy of diagnostic errors in a large academic pediatric radiology practice and suggests that most are multi-factorial in etiology. Further study is needed to define effective strategies for improvement. (orig.)

  10. DNA based radiological dosimetry technology

    International Nuclear Information System (INIS)

    Diaz Quijada, Gerardo A.; Roy, Emmanuel; Veres, Teodor; Dumoulin, Michel M.; Vachon, Caroline; Blagoeva, Rosita; Pierre, Martin

    2008-01-01

    Full text: The purpose of this project is to develop a personal and wearable dosimeter using a highly-innovative approach based on the specific recognition of DNA damage with a polymer hybrid. Our biosensor will be sensitive to breaks in nucleic acid macromolecules and relevant to mixed-field radiation. The dosimeter proposed will be small, field deployable and will sense damages for all radiation types at the DNA level. The generalized concept for the novel-based radiological dosimeter: 1) Single or double stranded oligonucleotide is immobilized on surface; 2) Single stranded has higher cross-section for fragmentation; 3) Double stranded is more biological relevant; 4) Radiation induces fragmentation; 5) Ultra-sensitive detection of fragments provides radiation dose. Successful efforts have been made towards a proof-of-concept personal wearable DNA-based dosimeter that is appropriate for mixed-field radiation. The covalent immobilization of oligonucleotides on large areas of plastic surfaces has been demonstrated and corroborated spectroscopically. The surface concentration of DNA was determined to be 8 x 1010 molecules/cm 2 from a Ce(IV) catalyzed hydrolysis study of a fluorescently labelled oligonucleotide. Current efforts are being directed at studying radiation induced fragmentation of DNA followed by its ultra-sensitive detection via a novel method. In addition, proof-of-concept wearable personal devices and a detection platform are presently being fabricated. (author)

  11. Radiology in dentistry. Zahnaerztliche Radiologie

    Energy Technology Data Exchange (ETDEWEB)

    Pasler, F.A.

    1981-01-01

    Dental radiology as a special field with all the necessary basic knowledge is slowly gaining the importance it deserves within the dental medicine and as one of the branches of human medicine. The author makes an attempt to find a way to combine the medical knowledge with the knowledge in the field of dental radiology, to compile the basic knowledge in the sense of a dento-maxillo-fascial radiology without letting the ideas of any of the branches get too dominant. The using of special literature remains necessary despite the creation of this booklet.

  12. Radiological Worker Training: Radiological Worker 2 lesson plans

    International Nuclear Information System (INIS)

    1992-10-01

    Upon completion of this g course, the participant will have the knowledge to work safely in areas controlled for a radiological purposes using proper radiological practices. The participant will be able toidentify the fundamentals of radiation, radioactive material and radioactive contamination includes identify the three basic particles of an atom, define ionization, define ionizing radiation, radioactive material and radioactive contamination, distinguish between ionizing radiation and non-ionizing radiation, define radioactivity and radioactive half-life

  13. Malignant Mesothelioma: Clinical, Pathological and Radiological Findings

    Directory of Open Access Journals (Sweden)

    Yeşim Yıldırım

    2012-01-01

    Full Text Available Aim: Malignant pleural mesothelioma is a tumor of locally invasive character and of fatal course, frequently arising following asbest exposure. In the present study we attempted to retrospectively evaluate the clinical, pathological, and radiological findings of 27 cases diagnosed with MPM. Material and Method: 27 cases diagnosed with MPM in our medical facility have been included into the study, 14 females, and 13 males. Of the cases, 4 have been diagnosed based on transthoracic pleural biopsy, and 23 %u2013 using surgical methods (VYTC, thoracotomy. Result: Radiological evaluation revealed pleural thickening in 23 (85.2%, pleural effusion in 20 (74.1%, volume loss in 15 (55.6%, pleural nodulation in 14 (51.9%, mediastinal shift in 4 (14.8%, pneumothorax in 1 (3.7%, and hydropneumothorax in 1 (3.7% of the cases, respectively. Histopathological examination failed to reveal any typing in 17 (63% of the cases. On the other hand, 5 (18.5% of the remainder cases were of the epitheloid type, 4 (14.8% were of the sarcomatoid type, and 1 (3.7% was of the biphasic MPM type. Mean survival rate of the 3 (11.1% Stage I cases was 1449 days, of the 6 (22.2% Stage II cases was 480 days, of the 18 (66.7% Stage III cases was 214 days. We had no Stage IV cases at the time of diagnosis. A statistically significant difference has been established between the Stage and the mean survival rate of the cases. Discussion: In diagnosing MPM, proper histopathological exam followed by proper radiological staging should be carried out. A multimodality approach comprises the present MPM treatment, but total cure cannot be provided.

  14. Anesthesia Practices for Interventional Radiology in Europe

    Energy Technology Data Exchange (ETDEWEB)

    Vari, Alessandra, E-mail: alessandra.vari@uniroma1.it [University La Sapienza, Department of Anesthesiology, Intensive Care and Pain Medicine (Italy); Gangi, Afshin, E-mail: gangi@unistra.fr [Les Hôpitaux Universitaires de Strasbourg, Chef de Pôle, Imagerie (France)

    2017-06-15

    PurposeThe Cardiovascular and Interventional Radiological Society of Europe (CIRSE) prompted an initiative to frame the current European status of anesthetic practices for interventional radiology, in consideration of the current variability of IR suite settings, staffing and anesthetic practices reported in the literature and of the growing debate on sedation administered by non-anesthesiologists, in Europe.MethodsAnonymous online survey available to all European CIRSE members to assess IR setting, demographics, peri-procedural care, anesthetic management, resources and staffing, pain management, data collection, safety, management of emergencies and personal opinions on the role CIRSE should have in promoting anesthetic care for interventional radiology.ResultsPredictable differences between countries and national regulations were confirmed, showing how significantly many “local” factors (type and size of centers, the availability of dedicated inpatient bed, availability of anesthesia staff) can affect the routine practice and the expansion of IR as a subspecialty. In addition, the perception of the need for IR to acquire more sedation-related skills is definitely stronger for those who practice with the lowest availability of anesthesia care.ConclusionSignificant country variations and regulations along with a controversial position of the anesthesia community on the issue of sedation administered by non-anesthesiologists substantially represent the biggest drawbacks for the expansion of peri-procedural anesthetic care for IR and for potential initiatives at an European level.

  15. Anesthesia Practices for Interventional Radiology in Europe

    International Nuclear Information System (INIS)

    Vari, Alessandra; Gangi, Afshin

    2017-01-01

    PurposeThe Cardiovascular and Interventional Radiological Society of Europe (CIRSE) prompted an initiative to frame the current European status of anesthetic practices for interventional radiology, in consideration of the current variability of IR suite settings, staffing and anesthetic practices reported in the literature and of the growing debate on sedation administered by non-anesthesiologists, in Europe.MethodsAnonymous online survey available to all European CIRSE members to assess IR setting, demographics, peri-procedural care, anesthetic management, resources and staffing, pain management, data collection, safety, management of emergencies and personal opinions on the role CIRSE should have in promoting anesthetic care for interventional radiology.ResultsPredictable differences between countries and national regulations were confirmed, showing how significantly many “local” factors (type and size of centers, the availability of dedicated inpatient bed, availability of anesthesia staff) can affect the routine practice and the expansion of IR as a subspecialty. In addition, the perception of the need for IR to acquire more sedation-related skills is definitely stronger for those who practice with the lowest availability of anesthesia care.ConclusionSignificant country variations and regulations along with a controversial position of the anesthesia community on the issue of sedation administered by non-anesthesiologists substantially represent the biggest drawbacks for the expansion of peri-procedural anesthetic care for IR and for potential initiatives at an European level.

  16. Radiology – Changing Role in Healthcare

    Directory of Open Access Journals (Sweden)

    Md Khalilur Rahman

    2014-01-01

    differing physical principles of varying complexity.3 Accurate and timely diagnosis has always been the cornerstone of medical care. In the vast majority of conditions this involves clinical radiology, from the relatively simple chest X-ray to diagnose pneumonia to the complexities of computed tomography (CT, magnetic resonance imaging (MRI or positron emission tomography (PET in the management of cancer. This diagnosis relies on the combination of imaging technology and the medical and diagnostic skills of the clinical radiologists making the diagnosis from the images.4 The value of different modalities varies by disease and clinical situation and some modalities have certain limitations in some organ systems. The discipline of musculoskeletal radiology has evolved into a major imaging subspecialty in the years since the first use of X-rays to diagnose fractures. Musculoskeletal radiology expertise has experienced enormous developments in diagnostic sensitivity and specificity and in image guided treatment options, in addition to technologic advances far beyond X-rays through advances in cross-sectional imaging such as CT and MR imaging. These two modern radiographic tools also play predominant role in neuroradiography.5 The field of radiation medicine and nuclear imaging are both progressing rapidly with respect to technologic sophistication and multiplatform interface capabilities. Though PET is not really a new field, it has recently undergone a dramatic revitalization as new clinical indicators are validated for this type of functional imaging. PET recently has an immense positive role in the diagnosis and monitoring of cancer patients. PET-CT is now an indispensable tool in the detection of cancer and cancer therapy.6 Most of us are familiar with the concept of diagnostic radiology in the field of medicine. However, numerous advancements in research have led radiology to play an increasingly promising part in health care not in just terms of spotting problems, but

  17. Emergency radiology in Canada: a national survey

    International Nuclear Information System (INIS)

    Torreggiani, W.C.; Nicolaou, S.; Lyburn, I.D.; Harris, A.C.; Buckley, A.R.

    2002-01-01

    To document the existing radiology services available to emergency physicians in hospitals across Canada and to preview future trends and needs. Questionnaires (n = 130) regarding the type, availability and satisfaction with radiology services were distributed to radiologists and emergency physicians at 65 hospitals across Canada. Fifty-three (41%) questionnaires were returned, and 45 (35%) completed questionnaires from 35 hospitals were used for analysis (24 from radiologists and 21 from emergency physicians). Plain radiographs were available in all hospitals at all times. Ultrasonography, intravenous pyleograms and computed tomography (CT) were available in all departments during normal working hours; after hours, CT was unavailable in 1 hospital and ultrasonography was unavailable in 2. Focused assessment with sonography for trauma (FAST) was routinely performed for blunt abdominal trauma in 6 centres, and 10 centres had teleradiology services. Regarding the quality of emergency service, 7 of 45 responded 'poor,' 4 'average,' 14 'good,' and 17 of 45 rated service 'excellent.' Interestingly, most radiologists answered 'good' or 'excellent,' and most of the 'poor' responses came from emergency physicians. Regarding staff coverage after 5 pm, 34 hospitals provided CT services, 20 had ultrasonography staff available, and there was radiology nursing coverage in 14 hospitals. Clinical details on requisitions were generally rated 'adequate' or 'poor.' Although most radiograph reports were available within 48 hours, some took longer. Hot-seat reporting was available in 11 centres. During normal working hours, radiologists were the first to read films in 5 of 35 hospitals. After hours, emergency physicians were the first to read films in all hospitals, but only 14 hospitals indicated they were 'formally' trained to do so. This survey documents the strengths and weaknesses of the radiology services available to emergency physicians. The perceptions of emergency physicians

  18. Interventional vascular radiology

    International Nuclear Information System (INIS)

    Yune, H.Y.

    1984-01-01

    The papers published during this past year in the area of interventional vascular radiology presented some useful modifications and further experiences both in the area of thromboembolic therapy and in dilation and thrombolysis, but no new techniques. As an introductory subject, an excellent monograph reviewing the current spectrum of pharmacoangiography was presented in Radiographics. Although the presented material is primarily in diagnostic application of various pharmacologic agents used today to facilitate demonstration of certain diagnostic criteria of various disease processes, both vasodilatory and vasoconstrictive reaction to these agents are widely used in various therapeutic vascular procedures. This monograph should be reviewed by every angiographer whether or not he or she performs interventional procedures, and it would be very convenient to have this table available in the angiography suite. In a related subject, Bookstein and co-workers have written an excellent review concerning pharmacologic manipulations of various blood coagulative parameters during angiography. Understanding the proper method of manipulation of the bloodclotting factors during angiography, and especially during interventional angiography, is extremely important. Particularly, the method of manipulating the coagulation with the use of heparin and protamine and modification of the platelet activity by using aspirin and dipyridamole are succinctly reviewed. The systemic and selective thrombolytic activities of streptokianse are also discussed

  19. Soil Radiological Characterisation Methodology

    International Nuclear Information System (INIS)

    Attiogbe, Julien; Aubonnet, Emilie; De Maquille, Laurence; De Moura, Patrick; Desnoyers, Yvon; Dubot, Didier; Feret, Bruno; Fichet, Pascal; Granier, Guy; Iooss, Bertrand; Nokhamzon, Jean-Guy; Ollivier Dehaye, Catherine; Pillette-Cousin, Lucien; Savary, Alain

    2014-12-01

    This report presents the general methodology and best practice approaches which combine proven existing techniques for sampling and characterisation to assess the contamination of soils prior to remediation. It is based on feedback of projects conducted by main French nuclear stakeholders involved in the field of remediation and dismantling (EDF, CEA, AREVA and IRSN). The application of this methodology will enable the project managers to obtain the elements necessary for the drawing up of files associated with remediation operations, as required by the regulatory authorities. It is applicable to each of the steps necessary for the piloting of remediation work-sites, depending on the objectives targeted (release into the public domain, re-use, etc.). The main part describes the applied statistical methodology with the exploratory analysis and variogram data, identification of singular points and their location. The results obtained permit assessment of a mapping to identify the contaminated surface and subsurface areas. It stakes the way for radiological site characterisation since the initial investigations from historical and functional analysis to check that the remediation objectives have been met. It follows an example application from the feedback of the remediation of a contaminated site on the Fontenay aux Roses facility. It is supplemented by a glossary of main terms used in the field from different publications or international standards. This technical report is a support of the ISO Standard ISO ISO/TC 85/SC 5 N 18557 'Sampling and characterisation principles for soils, buildings and infrastructures contaminated by radionuclides for remediation purposes'. (authors) [fr

  20. Marshall Islands radiological followup

    International Nuclear Information System (INIS)

    Greenhouse, N.A.; McCraw, T.F.

    In August, 1968, President Johnson announced that the people of Bikini Atoll would be able to return to their homeland. Thereafter, similar approval was given for the return of the peoples of Enewetak. These two regions, which comprised the Pacific Nuclear Testing Areas from 1946 to 1958, will probably be repopulated by the original inhabitants and their families within the next year. As part of its continuing responsibility to insure the public health and safety in connection with the nuclear programs under its sponsorship, ERDA (formerly AEC) has contracted Brookhaven National Laboratory to establish radiological safety and environmental monitoring programs for the returning Bikini and Enewetak peoples. These programs are described in the following paper. They are designed to define the external radiation environment, assess radiation doses from internal emitters in the human food chain, make long range predictions of total doses and dose commitments to individuals and to each population group, and to suggest actions which will minimize doses via the more significant pathways

  1. Computer applications in radiology.

    Science.gov (United States)

    Vannier, M W

    1991-04-01

    Computer applications in radiology are evolving rapidly, tied to incremental improvements in hardware, software, and methods. In computer hardware, the emergence of dramatically improved graphic and computational performance for engineering workstations enables their use for visualization. Major changes in networking, storage, and display technology play a major role in influencing applications. The use of three-dimensional digitizers to perform localization of real three-dimensional points in conjunction with images and the rendering of objects using rapid prototyping methods, such as stereolithography, were recently reported. Major software advances have taken place through the availability of applications packages that are operated with menu-driven or point-and-click user interfaces, data flow languages, or complete turnkey applications. Imaging methods including CT, MR imaging, digital radiography, biomagnetism, and optical range sensing, which take advantage of advanced computer technology, are new this year. Image processing for multimodality fusion or image registration, visualization, reconstruction, and quantification of images, have been reported at a wide variety of conferences and in key publications. New computer methods to fabricate custom orthopaedic implants, and to improve imaging technology assessment were introduced.

  2. Radiological design guide

    International Nuclear Information System (INIS)

    Evans, R.A.

    1994-01-01

    The purpose of this design guide is to provide radiological safety requirements, standards, and information necessary for designing facilities that will operate without unacceptable risk to personnel, the public, or the environment as required by the US Department of Energy (DOE). This design guide, together with WHC-CM-4-29, Nuclear Criticality Safety, WHC-CM-4-46, Nonreactor Facility Safety Analysis, and WHC-CM-7-5, Environmental Compliance, covers the radiation safety design requirements at Westinghouse Hanford Company (WHC). This design guide applies to the design of all new facilities. The WHC organization with line responsibility for design shall determine to what extent this design guide shall apply to the modifications to existing facilities. In making this determination, consideration shall include a cost versus benefit study. Specifically, facilities that store, handle, or process radioactive materials will be covered. This design guide replaces WHC-CM-4-9 and is designated a living document. This design guide is intended for design purposes only. Design criteria are different from operational criteria and often more stringent. Criteria that might be acceptable for operations might not be adequate for design

  3. Cardiac radiology: centenary review.

    Science.gov (United States)

    de Roos, Albert; Higgins, Charles B

    2014-11-01

    During the past century, cardiac imaging technologies have revolutionized the diagnosis and treatment of acquired and congenital heart disease. Many important contributions to the field of cardiac imaging were initially reported in Radiology. The field developed from the early stages of cardiac imaging, including the use of coronary x-ray angiography and roentgen kymography, to nowadays the widely used echocardiographic, nuclear medicine, cardiac computed tomographic (CT), and magnetic resonance (MR) applications. It is surprising how many of these techniques were not recognized for their potential during their early inception. Some techniques were described in the literature but required many years to enter the clinical arena and presently continue to expand in terms of clinical application. The application of various CT and MR contrast agents for the diagnosis of myocardial ischemia is a case in point, as the utility of contrast agents continues to expand the noninvasive characterization of myocardium. The history of cardiac imaging has included a continuous process of advances in our understanding of the anatomy and physiology of the cardiovascular system, along with advances in imaging technology that continue to the present day.

  4. Optimization in radiological protection

    International Nuclear Information System (INIS)

    Acosta Perez, Clarice de Freitas

    1996-01-01

    The optimization concept in radiation protection is, in its essence, practical. In each aspect that we deal with the man, it is necessary to take frequent decisions such as: what is the protection level to be pursued, since the protection levels under consideration provide doses lower than the appropriate annual limits. The optimization gives a basic framework of the minding that is appropriate to conduct to a balance kind of the resources available for the protection and protection level obtained against a multitude of factors and constrains in a manner to obtain the best result. In this work, was performed the optimization, from the radiation protection point of view, of a facility project who enclose two shielded hot cells where will be handled UO 2 small plate with 50% of U-235 burn-up, irradiated in the research swimming pool reactor, IEA-R1. To obtain this goal were specified the relevant factors and criteria, were applied the main techniques used in a decision-making in radiological protection, presently adopted and was performed a sensibility study of the factors and criteria used in this work. In order to obtain a greater agility in applying the techniques for decision-making was developed a micro computer program. (author)

  5. Granulomatous mastitis: radiological findings

    Energy Technology Data Exchange (ETDEWEB)

    Ozturk, M.; Mavili, E.; Kahriman, G.; Akcan, A.C.; Ozturk, F. [Depts. of Radiology, Surgery, and Pathology, Erciyes Univ. Medical Faculty, Kayseri (Turkey)

    2007-02-15

    Purpose: To evaluate the radiological, ultrasonographic, and magnetic resonance imaging (MRI) findings of idiopathic granulomatous mastitis. Material and Methods: Between April 2002 and June 2005, the mammography, ultrasound, color Doppler ultrasound, non enhanced MR, and dynamic MR findings of nine patients with the preliminary clinical diagnosis of malignancy and the final diagnosis of granulomatous mastitis were evaluated. Results: On mammography, asymmetrical focal densities with no distinct margins, ill-defined masses with spiculated contours, and bilateral multiple ill-defined nodules were seen. On ultrasound, in four patients a discrete, heterogenous hypoechoic mass, in two patients multiple abscesses, in one patient bilateral multiple central hypo peripheral hyperechoic lesions, in two patients heterogeneous hypo- and hyperechoic areas together with parenchymal distortion, and in one patient irregular hypoechoic masses with tubular extensions and abscess cavities were seen. Five of the lesions were vascular on color Doppler ultrasound. On MR mammography, the most frequent finding was focal or diffuse asymmetrical signal intensity changes that were hypointense on T1W images and hyperintense on T2W images, without significant mass effect. Nodular lesions were also seen. On dynamic contrast-enhanced mammography, mass-like enhancement, ring-like enhancement, and nodular enhancement were seen. The time-intensity curves differed from patient to patient and from lesion to lesion. Conclusion: The imaging findings of idiopathic granulomatous mastitis have a wide spectrum, and they are inconclusive for differentiating malignant and benign lesions.

  6. Radiological design guide

    Energy Technology Data Exchange (ETDEWEB)

    Evans, R.A.

    1994-08-16

    The purpose of this design guide is to provide radiological safety requirements, standards, and information necessary for designing facilities that will operate without unacceptable risk to personnel, the public, or the environment as required by the US Department of Energy (DOE). This design guide, together with WHC-CM-4-29, Nuclear Criticality Safety, WHC-CM-4-46, Nonreactor Facility Safety Analysis, and WHC-CM-7-5, Environmental Compliance, covers the radiation safety design requirements at Westinghouse Hanford Company (WHC). This design guide applies to the design of all new facilities. The WHC organization with line responsibility for design shall determine to what extent this design guide shall apply to the modifications to existing facilities. In making this determination, consideration shall include a cost versus benefit study. Specifically, facilities that store, handle, or process radioactive materials will be covered. This design guide replaces WHC-CM-4-9 and is designated a living document. This design guide is intended for design purposes only. Design criteria are different from operational criteria and often more stringent. Criteria that might be acceptable for operations might not be adequate for design.

  7. Image processing in radiology

    International Nuclear Information System (INIS)

    Dammann, F.

    2002-01-01

    Medical imaging processing and analysis methods have significantly improved during recent years and are now being increasingly used in clinical applications. Preprocessing algorithms are used to influence image contrast and noise. Three-dimensional visualization techniques including volume rendering and virtual endoscopy are increasingly available to evaluate sectional imaging data sets. Registration techniques have been developed to merge different examination modalities. Structures of interest can be extracted from the image data sets by various segmentation methods. Segmented structures are used for automated quantification analysis as well as for three-dimensional therapy planning, simulation and intervention guidance, including medical modelling, virtual reality environments, surgical robots and navigation systems. These newly developed methods require specialized skills for the production and postprocessing of radiological imaging data as well as new definitions of the roles of the traditional specialities. The aim of this article is to give an overview of the state-of-the-art of medical imaging processing methods, practical implications for the ragiologist's daily work and future aspects. (orig.) [de

  8. Radiologic abnormalities of the thoraco-lumbar spine in athletes

    Energy Technology Data Exchange (ETDEWEB)

    Hellstroem, M.; Jacobsson, B.; Swaerd, L.; Peterson, L. (Sahlgrenska Sjukhuset, Goeteborg (Sweden). Dept. of Radiology Oestra Sjukhuset, Goeteborg (Sweden). Dept. of Orthopedics King Faisal Specialist Hospital and Research Centre, Riyadh (Saudi Arabia). Dept. of Radiology)

    1990-03-01

    A radiologic study of the thoraco-lumbar spine was performed in 143 (117 male and 26 female) athletes (wrestlers, gymnasts, soccer players and tennis players), aged 14 to 25 years and 30 male nonathletes, aged 19 to 25 years. Film interpretation was made after mixing the films from all groups and without knowledge of the individual's identity. Various types of radiologic abnormalities occured in both athletes and non-athletes but were more common among athletes, especially male-gymnasts and wrestlers. Abnormalities of the vertebral ring apophysis occurred exclusively in athletes. Combinations of different types of abnormalities were most common in male gymnasts and wrestlers. (orig.).

  9. Necessity of blood supply preparedness in radiological emergency planning

    Energy Technology Data Exchange (ETDEWEB)

    Kaneko, Masao; Hosoda, Yutaka; Tateno, Yukio; Kawaguchi, Ryuji; Ishikawa, Yoshihide; Yamanaka, Retsuji; Kusakari, Takashi [Shizuoka Prefecture Hamamatsu Red Cross Blood Center, Hamamatsu (Japan)

    2002-07-01

    Any of radiological emergency may happen in the world at any time in our busy, complicated daily life. Especially, in the suburb area close to the nuclear power or fuel facilities, natural or human borne accidents will cause the radiological emergency, which may involve the human life threatening incidents, by big bleeding and /or dreadful radiation sickness. Natural casualties may be produced by enormous earth-quakes or typhoons, but in these days we have to prepare the incessant protection against the multiple terrorism as well. Since we experienced the Tokaimura Japan Conversion Company=JCO accident in Sept. 30, 1999, we are always aware of radiological emergency by effective net-work forming among the government, prefecture, town offices, nuclear power company and medical groups, which consist of special hospitals provided for radiological emergency. After settlement of the JCO accident, we confirmed the more strong systems to combine the effective cooperation of several specialists to the sudden necessity of radiological emergency rescue. For saving the victims, it is necessary to have the sufficient blood for transfusion exactly in accordance of the donor's blood types with the same types of the recipients. For the stem-cell transplantation, HLA cell typing is essential. In Japanese Red Cross Society, we have prepared the guideline in such occasions. Main and branch blood centers must be systematized for the quick and incessant reaction to the accident.

  10. Radiological Assistance Program (RAP) Regions

    Data.gov (United States)

    Department of Homeland Security — The U.S. Department of Energy (DOE) created the Radiological Assistance Program (RAP) in the 1950s to make DOE resources and expertise available to organizations...

  11. Radiological accidents in medical practice

    International Nuclear Information System (INIS)

    Cardenas Herrera, Juan

    2012-01-01

    Different radiological accidents that may occur in medical practice are shown. The following topics are focused: accident statistics for medical exposure, accidental medical exposures, radiotherapy accidents and potential accidental scenarios [es

  12. Introduction to radiological performance assessment

    International Nuclear Information System (INIS)

    Moss, G.

    1995-02-01

    A radiological performance assessment is conducted to provide reasonable assurance that performance objectives for low-level radioactive waste (LLW) disposal will be met. Beginning in the early stages of development, a radiological performance assessment continues through the operational phase, and is instrumental in the postclosure of the facility. Fundamental differences exist in the regulation of commercial and defense LLW, but the radiological performance assessment process is essentially the same for both. The purpose of this document is to describe that process in a concise and straightforward manner. This document focuses on radiological performance assessment as it pertains to commercial LLW disposal, but is applicable to US Department of Energy sites as well. Included are discussions on performance objectives, site characterization, and how a performance assessment is conducted. A case study is used to illustrate how the process works as a whole. A bibliography is provided to assist in locating additional information

  13. National Radiological Fixed Lab Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — The National Radiological Fixed Laboratory Data Asset includes data produced in support of various clients such as other EPA offices, EPA Regional programs, DOE,...

  14. Conventional radiology and genetic dose

    International Nuclear Information System (INIS)

    Gonzalez-Vila, V.; Fernandez, A.; Rivera, F.; Martinez, M.; Gomez, A.; Luis, J.

    1992-01-01

    A research project was established in 1984 to evaluate the expected genetic abnormalities due to radiation received by the population attending the Outpatient Radiological Service due to medical radiological practices. The study was conducted in 1985 (12 weeks chosen by random). The equivalent gonadal dose was the chosen parameter, representing the social cost of the radiology. Samples of 2945 men and 2929 women were considered in the study. The number of genetic abnormalities, in relation to the mean age of reproduction (a generation every 30 years), was 2.13 cases per million in the first generation and 15.97 cases per million at equilibrium. The authors interpretation is that both the method and the expected genetic detriment are suitable procedures for the characterisation of the Radiological Service as a radiation source. (author)

  15. Plan for radiological emergencies situations

    International Nuclear Information System (INIS)

    Estrada Figueroa, E.R.

    1998-01-01

    The objective for the Emergencies plan it is to reestablish the stock that they should be executed by the regulatory Entity in Guatemala during a real potential radiological emergency situation in the national territory

  16. Radiology for the veterinary practice

    International Nuclear Information System (INIS)

    Loeffler, K.

    1980-01-01

    The course gives general veterinarians an outline of the apparative and diagnostic possibilities in veterinary radiology. Legal prescriptions (X-ray Ordinance, Radiation Protection Ordinance) and sources of failures in X-ray imaging are discussed. (HP) [de

  17. Radiological protection Program of CDTN

    International Nuclear Information System (INIS)

    1983-01-01

    Radiological protection program of CDTN, its purposes and rules, responsabilities, physical control, monitoring, personnel radiation protection, radiation sources and radioactive wastes control, emergency and accidents and siting are described. (C.M.) [pt

  18. Film selection in medical radiology

    International Nuclear Information System (INIS)

    Bor, Dogan

    1988-01-01

    Importing of medical imaging films is the responsibility of Turkish Red Croscend, but some institutions have currently started to import their own films. Because of the different resources in individual departments throughout Turkey, a general purpose medical film is imported by Turkish Red Croscend. This kind of film has the advantage to tolerate some technical faults related to the exposure, dark room and processing conditions and still reveals the necessary image quality. In addition to general purpose film, many companies produce special used films which improve some film characteristics in order to have a better image. The initial results of a project already started by Turkish Atomic Energy Authority showed that some other technical reasons prevent obtaining films with optimum quality. The film is the last step of diagnostic procedure and not only gives necessary clinical information, but also visualizes all the problems related to the lock of the calibration of X-ray system and dark room processing conditions. Because of these reasons, many people hold the film responsible for every technical problem. During the selection of the best film among the different companies, institutions have to fulfill some prerequisites at the beginning and than evaluate the quantitative results obtained from measurements according to their clinical purposes. It is the subject of this paper to show how to use film parameter as a comparison to different types of films measured with light sensitometry method. The dark room and processing problems which adversely effect the results are also given. The requirements for the best film selection both for general and special purposes are also evaluated. The extent of this paper is limited only to films using radiology and does not cover the types used in other imaging areas

  19. Improving Communication of Diagnostic Radiology Findings through Structured Reporting

    Science.gov (United States)

    Panicek, David M.; Berk, Alexandra R.; Li, Yuelin; Hricak, Hedvig

    2011-01-01

    Purpose: To compare the content, clarity, and clinical usefulness of conventional (ie, free-form) and structured radiology reports of body computed tomographic (CT) scans, as evaluated by referring physicians, attending radiologists, and radiology fellows at a tertiary care cancer center. Materials and Methods: The institutional review board approved the study as a quality improvement initiative; no written consent was required. Three radiologists, three radiology fellows, three surgeons, and two medical oncologists evaluated 330 randomly selected conventional and structured radiology reports of body CT scans. For nonradiologists, reports were randomly selected from patients with diagnoses relevant to the physician’s area of specialization. Each physician read 15 reports in each format and rated both the content and clarity of each report from 1 (very dissatisfied or very confusing) to 10 (very satisfied or very clear). By using a previously published radiology report grading scale, physicians graded each report’s effectiveness in advancing the patient’s position on the clinical spectrum. Mixed-effects models were used to test differences between report types. Results: Mean content satisfaction ratings were 7.61 (95% confidence interval [CI]: 7.12, 8.16) for conventional reports and 8.33 (95% CI: 7.82, 8.86) for structured reports, and the difference was significant (P radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.11101913/-/DC1 PMID:21518775

  20. Risk versus benefit in radiology

    International Nuclear Information System (INIS)

    Samuel, E.

    1985-01-01

    The risks of radiology may be grouped into a) those inherent in the use of ionizing radiation which today are well known and b) those associated with the use of any scientific method in medicine. Inherent risks of scientific methods like inadequate examination and the interpretation of results are discussed. Radiology brought major benefits in medical care and some of the newer methods are considered

  1. Patient exposure in paediatric radiology

    International Nuclear Information System (INIS)

    Iacob, O.; Diaconescu, C.; Isac, R.

    2002-01-01

    Because of their longer life expectancy, the risk of late manifestations of detrimental radiation effects is greater in children than in adults and, consequently, paediatric radiology gives ground for more concern regarding radiation protection than radiology of adults. The purpose of our study was to assess, in terms of effective dose, the magnitude of paediatric patient exposure during conventional X-ray examinations, selected for their high frequency or their relatively high doses delivered to patient

  2. Radiological training for tritium facilities

    International Nuclear Information System (INIS)

    1996-12-01

    This program management guide describes a recommended implementation standard for core training as outlined in the DOE Radiological Control Manual (RCM). The standard is to assist those individuals, both within DOE and Managing and Operating contractors, identified as having responsibility for implementing the core training recommended by the RCM. This training may also be given to radiological workers using tritium to assist in meeting their job specific training requirements of 10 CFR 835

  3. Financial accounting for radiology executives.

    Science.gov (United States)

    Seidmann, Abraham; Mehta, Tushar

    2005-03-01

    The authors review the role of financial accounting information from the perspective of a radiology executive. They begin by introducing the role of pro forma statements. They discuss the fundamental concepts of accounting, including the matching principle and accrual accounting. The authors then explore the use of financial accounting information in making investment decisions in diagnostic medical imaging. The paper focuses on critically evaluating the benefits and limitations of financial accounting for decision making in a radiology practice.

  4. FDH radiological design review guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Millsap, W.J.

    1998-09-29

    These guidelines discuss in more detail the radiological design review process used by the Project Hanford Management Contractors as described in HNF-PRO-1622, Radiological Design Review Process. They are intended to supplement the procedure by providing background information on the design review process and providing a ready source of information to design reviewers. The guidelines are not intended to contain all the information in the procedure, but at points, in order to maintain continuity, they contain some of the same information.

  5. Radiologic aspects in invasive aspergillosis

    International Nuclear Information System (INIS)

    Feger, C.; Kerviler, E. de; Zagdanski, A.M.; Attal, P.; Cyna-Gorse, F.; Frija, J.; Laval-Jeantet, M.

    1994-01-01

    Invasive aspergillosis is a life-threatening illness, whose diagnosis is difficult: clinical signs are indeed not specific, and biological and mycological exams are not always conclusive. Radiological exams are essential for the diagnosis of this disease allowing to start an early intensive appropriate therapy. According to the literature and to their own experience the authors report the main radiological patterns with emphasis on the pulmonary and cerebral affections. (authors). 26 refs., 5 figs

  6. Radiological training for tritium facilities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-01

    This program management guide describes a recommended implementation standard for core training as outlined in the DOE Radiological Control Manual (RCM). The standard is to assist those individuals, both within DOE and Managing and Operating contractors, identified as having responsibility for implementing the core training recommended by the RCM. This training may also be given to radiological workers using tritium to assist in meeting their job specific training requirements of 10 CFR 835.

  7. Radiology of congenital heart disease

    International Nuclear Information System (INIS)

    Amplatz, K.

    1986-01-01

    This is a text on the radiologic diagnosis of congenital heart disease and its clinical manifestations. The main thrust of the book is the logical approach which allows an understanding of the complex theory of congenital heart disease. The atlas gives a concise overview of the entire field of congenital heart disease. Emphasis is placed on the understanding of the pathophysiology and its clinical and radiological consequences. Surgical treatment is included since it provides a different viewpoint of the anatomy

  8. FDH radiological design review guidelines

    International Nuclear Information System (INIS)

    Millsap, W.J.

    1998-01-01

    These guidelines discuss in more detail the radiological design review process used by the Project Hanford Management Contractors as described in HNF-PRO-1622, Radiological Design Review Process. They are intended to supplement the procedure by providing background information on the design review process and providing a ready source of information to design reviewers. The guidelines are not intended to contain all the information in the procedure, but at points, in order to maintain continuity, they contain some of the same information

  9. Radiological imaging in endocrine hypertension

    Directory of Open Access Journals (Sweden)

    Chandan J Das

    2011-01-01

    Full Text Available While different generations of assays have played important role in elucidating causes of different endocrine disorders, radiological techniques are instrumental in localizing the pathology. This statement cannot be truer in any disease entity other than endocrine hypertension. This review makes an effort to highlight the role of different radiological modalities, especially ultrasonography, computed tomography and magnetic resonance imaging, in the evaluation of different causes of endocrine hypertension.

  10. Radiological emergency preparedness (REP) program

    International Nuclear Information System (INIS)

    Kwiatkowski, D.H.

    1995-01-01

    This talk focuses on the accomplishments of Radiological Emergency Preparedness Program. Major topics include the following: strengthening the partnership between FEMA, the States, and the Industry; the Standard Exercise Report Format (SERF); Multi-year performance partnership agreement (MYPPA); new REP Program guidance; comprehensive exercise program; federal radiological emergency response plan (FRERP); international interest; REP user fee; implementation EPA PAGs and Dose Limits; Contamination monitoring standard for portal monitors; guidance documents and training

  11. Radiological Control Manual. Revision 0, January 1993

    Energy Technology Data Exchange (ETDEWEB)

    1993-04-01

    This manual has been prepared by Lawrence Berkeley Laboratory to provide guidance for site-specific additions, supplements, and clarifications to the DOE Radiological Control Manual. The guidance provided in this manual is based on the requirements given in Title 10 Code of Federal Regulations Part 835, Radiation Protection for Occupational Workers, DOE Order 5480.11, Radiation Protection for Occupational Workers, and the DOE Radiological Control Manual. The topics covered are (1) excellence in radiological control, (2) radiological standards, (3) conduct of radiological work, (4) radioactive materials, (5) radiological health support operations, (6) training and qualification, and (7) radiological records.

  12. Legal provisions governing gaseous effluents radiological monitoring

    International Nuclear Information System (INIS)

    Winkelmann, I.

    1985-01-01

    This contribution explains the main provisions governing radiological monitoring of gaseous effluents from LWR type nuclear power plants. KTA rule 1503.1 defines the measuring methods and tasks to be fulfilled by reactor operators in order to safeguard due monitoring and accounting of radioactive substances in the plants' gaseous effluents. The routine measurements are checked by a supervisory programme by an independent expert. The routine controls include analysis of filter samples, comparative measurement of radioactive noble gases, interlaboratory comparisons, and comparative evaluation of measured values. (DG) [de

  13. Radiological protection worker: occupational medical aspects

    International Nuclear Information System (INIS)

    Mora Ramirez, Erick

    2008-01-01

    International Organizations involved with radiation protection are presented in the first part. Also some documents related to the radiation that have been published by these organizations. Among the analyzed contents are the radiation and their patients, how to avoid the damage of radiation, pregnancy and exposure to medical radiation, effects of radiation, recommendations for the protection and safety standards. Occupational exposure is defined as the exposure received and understood by a worker during a period of work. In addition, it shows the types of occupational exposure, the protection that workers must have with the radiation, regulations, laws and the regulatory authority that protects the medical personnel in the uses of radiology [es

  14. DOE standard: Radiological control

    International Nuclear Information System (INIS)

    1999-07-01

    The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs. DOE has established regulatory requirements for occupational radiation protection in Title 10 of the Code of Federal Regulations, Part 835 (10 CFR 835), ''Occupational Radiation Protection''. Failure to comply with these requirements may lead to appropriate enforcement actions as authorized under the Price Anderson Act Amendments (PAAA). While this Standard does not establish requirements, it does restate, paraphrase, or cite many (but not all) of the requirements of 10 CFR 835 and related documents (e.g., occupational safety and health, hazardous materials transportation, and environmental protection standards). Because of the wide range of activities undertaken by DOE and the varying requirements affecting these activities, DOE does not believe that it would be practical or useful to identify and reproduce the entire range of health and safety requirements in this Standard and therefore has not done so. In all cases, DOE cautions the user to review any underlying regulatory and contractual requirements and the primary guidance documents in their original context to ensure that the site program is adequate to ensure continuing compliance with the applicable requirements. To assist its operating entities in achieving and maintaining compliance with the requirements of 10 CFR 835, DOE has established its primary regulatory guidance in the DOE G 441.1 series of Guides. This Standard supplements the DOE G 441.1 series of Guides and serves as a secondary source of guidance for achieving compliance with 10 CFR 835

  15. DOE standard: Radiological control

    Energy Technology Data Exchange (ETDEWEB)

    1999-07-01

    The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs. DOE has established regulatory requirements for occupational radiation protection in Title 10 of the Code of Federal Regulations, Part 835 (10 CFR 835), ``Occupational Radiation Protection``. Failure to comply with these requirements may lead to appropriate enforcement actions as authorized under the Price Anderson Act Amendments (PAAA). While this Standard does not establish requirements, it does restate, paraphrase, or cite many (but not all) of the requirements of 10 CFR 835 and related documents (e.g., occupational safety and health, hazardous materials transportation, and environmental protection standards). Because of the wide range of activities undertaken by DOE and the varying requirements affecting these activities, DOE does not believe that it would be practical or useful to identify and reproduce the entire range of health and safety requirements in this Standard and therefore has not done so. In all cases, DOE cautions the user to review any underlying regulatory and contractual requirements and the primary guidance documents in their original context to ensure that the site program is adequate to ensure continuing compliance with the applicable requirements. To assist its operating entities in achieving and maintaining compliance with the requirements of 10 CFR 835, DOE has established its primary regulatory guidance in the DOE G 441.1 series of Guides. This Standard supplements the DOE G 441.1 series of Guides and serves as a secondary source of guidance for achieving compliance with 10 CFR 835.

  16. Nuclear and Radiological Terrorism

    International Nuclear Information System (INIS)

    Cizmek, A.

    2003-01-01

    Radiological and nuclear terrorism is widely considered as a major if not ultimate terrorist threat for modern societies. Highly industrialized countries could be extremely sensitive to terrorist aggressions of this kind. Nuclear terrorism is often associated with nuclear proliferation. Strictly speaking, nuclear proliferation deals with the spread of nuclear weapons into states which doesn't posses them. But proliferation can also be understood as the spread of radioactive material or even nuclear explosives into the hands of non-state organizations, such as sub national terrorist or criminal organizations as well as any kind of extreme groups for sabotage, blackmail or any other destabilization or destruction purposes. New driving factors for nuclear terrorism which 'help' terrorists are: the consequence of the break down of the Soviet Union and 'easy' radioactive smuggling and black market. What is 'New terrorism'? In analyzing the treat, one has to start by posing several crucial questions such as 'do such groups or individuals have the skill to complete their aim'? 'Who are these groups and individuals', 'how they can be categorized', 'what is their motivation'? If analysis of the 'new terrorism' is one side of the coin, the other is just as daunting. Who, what, when, where and how would be targeted by 'new terrorism'? Although there are existing different reasons (religious and political/social), mainly the target is civilian population. In many instances the aim is to exert either political or economic pressure on authorities or both. Police, ambulance - first call response teams - local, regional and national authorities have a hard task still ahead of them. The upside is that industrialized nations have acknowledged the need to reassess where we are and what the risk is. The bottom line has to be 'who is likely to want to resort to such methods and what the likelihood of them succeeding would be. (author)

  17. Radiologic study of osteomyelitis of the jaw

    International Nuclear Information System (INIS)

    Lee, Young Ho; Ahn, Hyung Kyu

    1980-01-01

    The author studied age and sex distribution, etiology, affected site and several radiographic features of osteomyelitis of the jaw. And radiologic classification of osteomyelitis was also done. The material consisted of 118 males and 96 females examined and/or treated under the diagnosis of osteomyelitis during past 11 years (1970-1980.6) in SNUDH. The obtained results were as followings. 1. The incidence is the highest in teen ages (22.9%) and the lowest in seventies. (2.8%). 2. 199 cases were found in lower jaw, and 15 cases in upper jaw. 30.8% of all cases were located at the posterior portion of mandibular body comprising alveolar region. 3. Radiographic examination of osteolytic lesion revealed that 21.5% of all patients had periapical and alveolar bone rarefaction combined with osteoporotic changes were present at the same time. 4. Sclerotic lesions were seen in 62.2% of all patients and 21.5% of sclerotic lesion were diffuse or homogenous type. 5. Based on the radiologic study, classification of the osteomyelitis of the jaw was made. Localized osteolytic type was the highest in incidence (38.8%) and localized sclerotic type was the lowest (7.0%).

  18. Radiological protection and quality control for diagnostic radiology in China

    International Nuclear Information System (INIS)

    Baorong, Yue

    2008-01-01

    Full text: There are 43,000 diagnostic departments, nearly 70,000 X-ray diagnostic facilities, 7,000 CT, 250 million for the annual total numbers of X-ray examinations, 120,000 occupationally exposed workers in diagnostic radiology. 'Basic standards for protection against ionizing radiation and for the safety of radiation sources' is promulgated on October, 2002. This basic standard follows the BSS. 'Rule on the administration of radio-diagnosis and radiotherapy', as a order of the Ministry of Health No. 46, is promulgated by Minister of Health on January 24, 2006. It includes general provisions, requirements and practice, establishment and approval of radio-diagnosis and radiotherapy services, safeguards and quality assurance, and so on. There are a series of radiological protection standards and quality control standards in diagnostic radiology, including 'radiological protection standard for the examination in X-ray diagnosis', 'radiological health protection standards for X-ray examination of child-bearing age women and pregnant women', 'radiological protection standards for the children in X-ray diagnosis', 'standards for radiological protection in medical X-ray diagnosis', 'specification for radiological protection monitoring in medical X-ray diagnosis', 'guide for reasonable application of medical X-ray diagnosis', 'general aspects for quality assurance in medical X-ray image of diagnosis', 'specification of image quality control test for the medical X-ray diagnostic equipment', 'specification of image quality assurance test for X-ray equipment for computed tomography', 'specification for testing of quality control in computed radiography (CR)' and 'specification for testing of quality control in X-ray mammography'. With the X-ray diagnostic equipment, there are acceptant tests, status tests and routing tests in large hospitals. It is poor for routing test in middle and smaller hospitals. CT is used widely in diagnostic radiology, however most workers in CT

  19. Radiology education: a radiology curriculum for all medical students?

    Science.gov (United States)

    Zwaan, Laura; Kok, Ellen M; van der Gijp, Anouk

    2017-09-26

    Diagnostic errors in radiology are frequent and can cause severe patient harm. Despite large performance differences between radiologists and non-radiology physicians, the latter often interpret medical images because electronic health records make images available throughout the hospital. Some people argue that non-radiologists should not diagnose medical images at all, and that medical school should focus on teaching ordering skills instead of image interpretation skills. We agree that teaching ordering skills is crucial as most physicians will need to order medical images in their professional life. However, we argue that the availability of medical images is so ubiquitous that it is important that non-radiologists are also trained in the basics of medical image interpretation and, additionally in recognizing when radiological consultancy should be sought. In acute situations, basic image interpretations skills can be life-saving. We plead for a radiology curriculum for all medical students. This should include the interpretation of common abnormalities on chest and skeletal radiographs and a basic distinction of normal from abnormal images. Furthermore, substantial attention should be given to the correct ordering of radiological images. Finally, it is critical that students are trained in deciding when to consult a radiologist.

  20. Development of radiology in Mongolia

    International Nuclear Information System (INIS)

    Gonchigsuren, D.; Munkhbaatar, D.; Tuvshinjargal, D.; Onkhuudai, P.

    2007-01-01

    Full text: Radiology had been introduced in Mongolia by the establishment of the first X-Ray room at the First State Central Hospital in 1934. First radiologists in Mongolia were invited from the former Soviet Union; V. Sokolov, P. Omelchenko and others worked at the ''Burevestnik'' X-ray equipment of Russian production with high X-ray exposure and low capacity; they could perform only limited arts of Xray studies like fluoroscopy of thorax, stomach, esophagus and roentgenography of skull and extremities. The second X- ray equipment has been presented by the close friend of Lenin, the Director of People's Commissariat of Health Protection of the Soviet Union, Dr. N.A. Semashko; the present had been dedicated to the 10th Anniversary of Mongolian Health Care sector. During the military maneuvers at Khalkhin- Gol in 1939, several province hospitals and military hospitals had been supplied by the Xray equipment. During the period 1959-1960 all province hospitals, specialized hospitals had got X-ray unit. In 1955, Radii 226 had been used at first time in Mongolia for a treatment. In 1959, the State Radiological Clinic had been founded as a branch of X-ray cabinet of the First State Central Hospital. By the initiative of the absolvent of University of Leipzig, German Democratic Republic, Dr. P. Onkhuudai, Laboratory of Nuclear Medicine was established on 31 PstP March 1975 at the First State Central Hospital, which performed urography, thyroid and liver studies using Iod-131, Au-198, Hg-203 isotopes. In 1982, the gamma-camera and radio immunological equipment had been donated by the World Health Organization, and the Laboratory of Nuclear Medicine had been reorganized into Department of Nuclear Laboratory. Afterwards, in 1992 CT and SPECT diagnostics had been introduced at the First State Central Hospital, therefore new possibilities for high quality radiological diagnostic in Mongolia had been created. In 2007 the Siemens Magnetom 0.3 Tesla had been installed at the

  1. Analysis of radiology education in undergraduate medical doctors training in Europe

    International Nuclear Information System (INIS)

    Kourdioukova, Elena V.; Valcke, Martin; Derese, Anselme; Verstraete, Koenraad L.

    2011-01-01

    Objectives: The purpose of the present study is to describe how undergraduate radiology teaching is organized in Europe and to identify important characteristics of undergraduate radiology curriculum. Methods: An electronic survey on undergraduate teaching was distributed by the European Society of Radiology (ESR) to 38 national delegates of the ESR Education Committee. Results: The 'classic type' of radiology teaching method is more frequent than the 'modular type'. In 38% of medical training centres the first experience with radiology is in pre-clinical years. The students enrolled in the fourth medical year experience the largest involvement in radiology education. The total number of teaching hours (mean 89 h, median 76 h) varies across the countries and differs depending on the radiological topic (mean across all topics 14.8 h, median 13). Written tests and oral exams were the most frequently used examination modes. Clerkships are reported as a key part of training. Conclusion: This first international comparative study of undergraduate radiological curriculum in Europe identifies a large number of differences in curriculum content and teaching methods throughout Europe. More research is needed to establish the radiological educational competences resulting from these differing curricula's to improve and to standardize the teaching according to (inter)national and institutional needs.

  2. [Brief history of interventional radiology].

    Science.gov (United States)

    Tang, Zhenliang; Jia, Aiqin; Li, Luoyun; Li, Chunyu

    2014-05-01

    In 1923, angiography was first successively used for the human body. In 1953, a Swedish doctor Sven-Ivar Seldinger pioneered the Seldinger technique, which laid down the foundation of interventional radiology. In 1963, Charles Dotter first proposed the idea of interventional radiology. In 1964, Charles Dotter opened a new era of percutaneous angioplasty through accidental operation, marking the formation of interventional radiology. On this basis, the techniques of balloon catheter dilation and metal stent implantation was developed. Endovascular stent was proposed in 1969. In 1973, the percutaneous angioplasty has been a breakthrough with the emergence of soft double-lumen balloon catheter. Percutaneous coronary angioplasty is applied in 1977. Since the 1990s, balloon angioplasty relegated to secondary status with the emergence of metal stent. Currently, endovascular stent have entered a new stage with the emergence of temporary stent and stent grafts and biological stent. Transcatheter arterial embolization had been one of the most important basic techniques for interventional radiology since 1965, it had also been a corresponding development with the improvement of embolic agents and catheter technology for the treatment of diseases now. Transjugular intrahepatic portosystemic stent-shunt is a comprehensive interventional radiology technology since 1967, in which the biliary system can be reached through a jugular vein, and the improvement appeared with balloon expandable stent in 1986.Since 1972, non-vascular interventional techniques was another important branch of interventional radiology. Currently, it is applied in the diagnosis and treatment of many diseases of the internal organs like the pancreas, liver, kidney, spinal cord, Fallopian tubes, esophagus and other organs. In 1973, Chinese radiologist first conducted the angiography test. Interventional radiology was introduced into China in the 1980s, it was readily developed through the sponsoring of

  3. Radiological classification of mandibular fractures

    International Nuclear Information System (INIS)

    Mihailova, H.

    2009-01-01

    Mandibular fractures present the biggest part (up to 97%) of the facial bone fractures. Method of choice for diagnosing of mandibular fractures is conventional radiography. The aim of the issue is to present an unified radiological classification of mandibular fractures for the clinical practice. This classification includes only those clinical symptoms of mandibular fracture which could be radiologically objectified: exact anatomical localization (F1-F6), teeth in fracture line (Ta,Tb), grade of dislocation (D I, D II), occlusal disturbances (O(+), O(-)). Radiological symptoms expressed by letter and number symbols are systematized in a formula - FTDO of mandibular fractures similar to TNM formula for tumours. FTDO formula expresses radiological diagnose of each mandibular fracture but it doesn't include neither the site (left or right) of the fracture, nor the kind and number of fractures. In order to express topography and number of fractures the radiological formula is transformed into a decimal fraction. The symbols (FTD) of right mandible fracture are written in the numerator and those of the left site - in the denominator. For double and multiple fractures between the symbols for each fracture we put '+'. Symbols for occlusal disturbances are put down opposite, the fractional line. So topographo-anatomical formula (FTD/FTD)xO is formed. In this way the whole radiological information for unilateral, bilateral, single or multiple fractures of the mandible is expressed. The information in the radiological topography anatomic formula, resp. from the unified topography-anatomic classification ensures a quick and exact X-ray diagnose of mandibular fracture. In this way contributes to get better, make easier and faster X-ray diagnostic process concerning mandibular fractures. And all these is a precondition for prevention of retardation of the diagnosis mandibular fracture. (author)

  4. Study of radiation exposure profiles in interventional radiology professionals

    International Nuclear Information System (INIS)

    Bacchim Neto, Fernando A.; Alves, Allan F.F.; Alvarez, Matheus; Rosa, Maria E.D.; Miranda, Jose R.A.; Freitas, Carlos C.M. de; Moura, Regina; Pina, Diana R. de

    2014-01-01

    Interventional Radiology is the radiology area that provides the highest dose values to the medical staff. Recent surveys show that personal dosimeters may underestimate the radiation dose values in interventional physicians, especially in the extremities and crystalline. The objective of this work was to study the exposure levels to radiation from medical staff in different interventional radiology procedures. Therefore, thermoluminescent dosimeters type LiF: Mg, Ti (TLD-100) were used positioned in the main interventional physician and an assistant in the following locations: some inches below the crystalline, thyroid, chest, gonads, hand and foot. By comparing the values obtained with the annual reference dose levels in workers, maximum numbers of annual procedures were found. Altogether, there were 23 procedures evaluated: 10 diagnostics, 9 angioplasties and 4 stents. The maximum number of annual procedures were estimated by discounting the percentages of attenuation of radiological protection. For procedures of the type diagnosis, angioplasty and stent for the main interventionist, the maximum number of annual procedures were 641, 445 and 113 respectively, while for the interventionists assistants were 930, 1202 and 215 respectively. As each interventionist body region is subject to different levels of exposure, detailed studies of exposure in each region provide better conclusions about what actions are necessary to ensure radiological protection professionals

  5. Cognitive and system factors contributing to diagnostic errors in radiology.

    Science.gov (United States)

    Lee, Cindy S; Nagy, Paul G; Weaver, Sallie J; Newman-Toker, David E

    2013-09-01

    In this article, we describe some of the cognitive and system-based sources of detection and interpretation errors in diagnostic radiology and discuss potential approaches to help reduce misdiagnoses. Every radiologist worries about missing a diagnosis or giving a false-positive reading. The retrospective error rate among radiologic examinations is approximately 30%, with real-time errors in daily radiology practice averaging 3-5%. Nearly 75% of all medical malpractice claims against radiologists are related to diagnostic errors. As medical reimbursement trends downward, radiologists attempt to compensate by undertaking additional responsibilities to increase productivity. The increased workload, rising quality expectations, cognitive biases, and poor system factors all contribute to diagnostic errors in radiology. Diagnostic errors are underrecognized and underappreciated in radiology practice. This is due to the inability to obtain reliable national estimates of the impact, the difficulty in evaluating effectiveness of potential interventions, and the poor response to systemwide solutions. Most of our clinical work is executed through type 1 processes to minimize cost, anxiety, and delay; however, type 1 processes are also vulnerable to errors. Instead of trying to completely eliminate cognitive shortcuts that serve us well most of the time, becoming aware of common biases and using metacognitive strategies to mitigate the effects have the potential to create sustainable improvement in diagnostic errors.

  6. Radiation protection in pediatric radiology.

    Science.gov (United States)

    Alzen, Gerhard; Benz-Bohm, Gabriele

    2011-06-01

    The German Federal Law on Radiation Control contains no special provisions for X-ray studies in children and adolescents, even though exposure to ionizing radiation must be kept especially low in young persons, because their tissues are highly radiosensitive. Children, who have many years left to live, are more likely than adults to develop radiation-induced cancer; also, as future parents, they are at risk for passing on radiation-induced genetic defects to the next generation. Whenever possible, radiological studies on children and adolescents should be of a type that does not involve ionizing radiation, such as ultrasonography or magnetic resonance imaging. Pediatric conventional X-rays and computerized tomography (CT) require special examining techniques and protocols that are adapted to the patient's age and to the indication for the study. We selectively review the literature on pediatric dose reduction and discuss our own investigations on the subject as well. The essential technical prerequisites for lowering the dose of ionizing radiation in conventional X-ray studies include the proper setting of tube voltage, the use of tube filters, suitable patient positioning and fixation, variable use of a scattered-radiation grid, and a modern storage-plate system. In CT studies, the use of age- and indication-adapted protocols can lower radiation exposure by as much as 95%. There are now many ways to lower the exposure of children and adolescents to ionizing radiation without sacrificing diagnostic reliability. The main factors in lowering exposure are proper attention to clinical indications, the use of special X-ray protocols, the use of alternative imaging studies without ionizing radiation wherever possible, and the expertise of the examiner.

  7. Radiological Weapons: How Great Is The Danger?

    International Nuclear Information System (INIS)

    Moore, G M

    2003-01-01

    One of the underlying purposes of this paper is to provoke thinking about the interplay between the regulation of radioactive materials and the risk of their use in an radiological weapon (RW). Also considered in this paper are the types of RWs that a terrorist might use, the nature of the threat and danger posed by the various types of RWs, the essential elements that must be considered in responding to the terrorist use of an RW, and what steps may need to be taken a priori to minimize the consequences of the inevitable use of an RW. Because radiological dispersal devices (RDDs) have been the focus of so much recent concern and because RDDs are arguably the most likely of RWs to be used by a terrorist group, a major focus of this paper will be on RDDs. Radiological weapons are going to be used by some individual or group, if not this year then next year, or at some time in the foreseeable future. A policy of focusing resources solely on prevention of their use would leave any government open to significant economic disruption when the inevitable use occurs. Preplanning can limit the injuries, property damage, and economic losses that might result from the use of an RW. Moreover, a combination of efforts to prevent and to minimize the impact of RWs may significantly discourage potential users. The dangers from RWs can be dealt with while society continues to enjoy the benefits of nuclear technology that were promised under Atoms for Peace. However, some restructuring of our use of radioactive materials is necessary to ensure that the current and future uses of radioactive materials outweigh the potential disruption caused by misuse of the materials in RWs

  8. Castleman s Disease with an Unusual Radiological Presentation: A Case Report

    Directory of Open Access Journals (Sweden)

    Nesrin Ocal

    2014-02-01

    Full Text Available Castleman%u2019s disease is a rare lymphoproliferative pathology which has two clinicoradiological forms; localized disease and disseminated disease. Histopathologically, Castleman%u2019s disease is evaluated in three groups; hyaline-vascular type, plasma cell type and mixed type. Patients are often asymptomatic and are diagnosed by radiological findings. The most common radiological presentation is huge lymph nodes in mediastinal area. Lymphadenopathy is most frequently observed in paratracheal lymph nodes. We wanted to emphasize this very rare entity and remind you this disease by the mean of a case with different radiological appearance.

  9. Radiological Work Planning and Procedures

    International Nuclear Information System (INIS)

    KURTZ, J.E.

    2000-01-01

    Each facility is tasked with maintaining personnel radiation exposure as low as reasonably achievable (ALARA). A continued effort is required to meet this goal by developing and implementing improvements to technical work documents (TWDs) and work performance. A review of selected TWDs from most facilities shows there is a need to incorporate more radiological control requirements into the TWD. The Radioactive Work Permit (RWP) provides a mechanism to place some of the requirements but does not provide all the information needed by the worker as he/she is accomplishing the steps of the TWD. Requiring the engineers, planners and procedure writers to put the radiological control requirements in the work steps would be very easy if all personnel had a strong background in radiological work planning and radiological controls. Unfortunately, many of these personnel do not have the background necessary to include these requirements without assistance by the Radiological Control organization at each facility. In addition, there seems to be confusion as to what should be and what should not be included in the TWD

  10. Radiological manifestations of intestinal tuberculosis

    International Nuclear Information System (INIS)

    Im, Jae Hoon

    1974-01-01

    Radiological findings of 87 cases of intestinal tuberculosis are analyzed and presented. The diagnosis was based on histopathology in 29 cases, and on clinical ground and radiological findings in 58 cases. The radio of male and female patients was 4:6, and peak incidence is between 10 and 30. Abdominal pain, diarrhea, weight loss, fever and general weakness are frequent symptoms, and tenderness of abdomen, ascites with abdominal distension, malnutrition and emaciation are frequent signs of the patients. Laboratory investigation reveal anemia, raised ESR, hypoalbuminaemia and positive occult blood reaction in the stool in most of the patients. Chest film show activity pulmonary tuberculosis in only 1/3 patients. There is no pathognomonic radiological findings in intestinal tuberculosis and their manifestations are protean, and differentiation from other inflammatory diseases and malignant tumors in gastrointestinal tract is very difficult on radiological ground alone. However, in patients with complaining vague abdominal symptoms and signs, the radiological diagnosis is most certain means in the decision of existence of organic lesion and suggestion of tuberculosis in the gastrointestinal tract and its extent as yet. Multiplicity of the lesion, involvement of adjacent organ such as peritoneum or mesenteric lymph nodes, typical nodularity or irregularity of mesenteric border and existence of active pulmonary tuberculosis are the suggestive findings of intestinal tuberculosis. In the diagnosis of inflammatory disease or malignant tumor of gastrointestinal tract, the possibility of tuberculosis should be borne in mind, and vice versa

  11. Radiologic image compression -- A review

    International Nuclear Information System (INIS)

    Wong, S.; Huang, H.K.; Zaremba, L.; Gooden, D.

    1995-01-01

    The objective of radiologic image compression is to reduce the data volume of and to achieve a lot bit rate in the digital representation of radiologic images without perceived loss of image quality. However, the demand for transmission bandwidth and storage space in the digital radiology environment, especially picture archiving and communication systems (PACS) and teleradiology, and the proliferating use of various imaging modalities, such as magnetic resonance imaging, computed tomography, ultrasonography, nuclear medicine, computed radiography, and digital subtraction angiography, continue to outstrip the capabilities of existing technologies. The availability of lossy coding techniques for clinical diagnoses further implicates many complex legal and regulatory issues. This paper reviews the recent progress of lossless and lossy radiologic image compression and presents the legal challenges of using lossy compression of medical records. To do so, the authors first describe the fundamental concepts of radiologic imaging and digitization. Then, the authors examine current compression technology in the field of medical imaging and discuss important regulatory policies and legal questions facing the use of compression in this field. The authors conclude with a summary of future challenges and research directions. 170 refs

  12. Osteogenesis imperfecta: radiological view on the pediatric patient

    International Nuclear Information System (INIS)

    Siroka, M.; Dovicovicova, A.; Vanatka, R.; Lesny, P.; Bilicky, J.

    2012-01-01

    Osteogenesis imperfecta (OI) is a genetically and clinically heterogeneous disorder of bone and connective tissue characterized by osteoporosis, fragile bones, hyper extensible joints, dentinogenesis imperfecta, bluish coloration of the sclerae, and adult-onset hearing loss. Detailed medical history, careful physical examination, radiographic features of fractures, and biochemical analysis of skin collagen are the four cornerstones of accurate diagnosis. A radiology specialist should be aware of subtle changes seen on radiographs as well as of specific osteogenesis features (i.e. popcorn calcifications) and difficult differential diagnosis (i.e. hypertrophic callus formation versus osteosarcoma; child abuse fractures versus true osteogenesis imperfecta). About 300 different mutations have been identified within COL1A1 and COL1A2 genes that encode the chains of type I collagen. Depending on the location of the mutation within the collagen gene, these produce a variety of clinical pictures which range from mild OI type I, lethal OI type II to severely deforming OI type III and mildly deforming OI type IV, OI type V is moderate in severity and it is similar to OI type IV, OI type VI is extremely rare and two recessive types of OI, types VII and VIII, were identified in 2006. Each of the eight types has a common radiologic appearance that helps in establishing the diagnosis. The purpose of this article is to give an as comprehensive as possible review of the radiological picture of OI in pediatric patients. Special emphasis will be given to specific radiological prognostic features as well as to the differential diagnosis. (author)

  13. White Paper: Curriculum in Interventional Radiology.

    Science.gov (United States)

    Mahnken, Andreas H; Bücker, Arno; Hohl, Christian; Berlis, Ansgar

    2017-04-01

    Purpose  Scope and clinical importance of interventional radiology markedly evolved over the last decades. Consequently it was acknowledged as independent subspecialty by the "European Union of Medical Specialists" (UEMS). Based on radiological imaging techniques Interventional Radiology is an integral part of Radiology. Materials und Methods  In 2009 the German Society for Interventional Radiology and minimally-invasive therapy (DeGIR) developed a structured training in Interventional Radiology. In cooperation with the German Society of Neuroradiology (DGNR) this training was extended to also cover Interventional Neuroradiology in 2012. Tailored for this training in Interventional Radiology a structured curriculum was developed, covering the scope of this modular training. Results  The curriculum is based on the DeGIR/DGNR modular training concept in Interventional Radiology. There is also an European Curriculum and Syllabus for Interventional Radiology developed by the "Cardiovascular and Interventional Radiological Society of Europe" (CIRSE). The presented curriculum in Interventional Radiology is designed to provide a uniform base for the training in Interventional Radiology in Germany, based on the competencies obtained during residency. Conclusion  This curriculum can be used as a basis for training in Interventional Radiology by all training sites. Key Points: · Interventional Radiology is an integral part of clinical radiology. · The German Society for Interventional Radiology and minimally-invasive therapy (DeGIR) developed a curriculum in Interventional Radiology. · This curriculum is an integrative basis for the training in interventional. Citation Format · Mahnken AH, Bücker A, Hohl C et al. White Paper: Curriculum in Interventional Radiology. Fortschr Röntgenstr 2017; 189: 309 - 311. © Georg Thieme Verlag KG Stuttgart · New York.

  14. L-62: Radiological emergencies revision to first responders

    International Nuclear Information System (INIS)

    2011-01-01

    This conference describes the different types of radiological emergencies, the different emergency situations as well as the experience obtained. The radioactive material places, the damages and injuries caused by radioactive sources, the overexposure and the contamination levels are the main aspects to be considered in each situation

  15. Factors to consider in the transition to digital radiological imaging.

    LENUS (Irish Health Repository)

    MacDonald, David

    2009-02-01

    The dentist considering adopting digital radiological technology should consider more than the type of detector with which to capture the image. He\\/she should also consider the mode of display, image enhancement, radiation dose reduction, how the image can be stored long term, and infection control.

  16. The questions of working out radiology patterns of portal hypertension

    International Nuclear Information System (INIS)

    Vyikman, Ya.E.

    2008-01-01

    A foundation for radiological patterns of each type of portal hypertension (PH) at various stages of its development. Portal blood pressure, diameter of splenic and portal veins, volume blood flow velocity in the portal and splenic veins, incidence of hypersplenism, enlargement of the caudate lobe of the liver and gallbladder fossa are the most informative in differentiation of various forms of portal hypertension

  17. Radiological Control Technician: Phase 2, Core/site practical training

    International Nuclear Information System (INIS)

    1992-10-01

    This volume provides a description of the guidelines, qualification in radiological instrumentation, qualification in radiological protection, and qualification in emergency preparedness for radiological control technicians

  18. ''Activity based coasting'' in radiology

    International Nuclear Information System (INIS)

    Klose, K.J.; Boettcher, J.

    2002-01-01

    Background: The introduction of diagnosis related groups for reimbursement of hospital services in Germany (g-drg) demands for a reconsideration of utilization of radiological products and costs related to them.Methods: Traditional cost accounting as approach to internal, department related budgets are compared with the accounting method of activity based costing (ABC). The steps, which are necessary to implement ABC in radiology are developed.Conclusions: The introduction of a process-oriented cost analysis is feasible for radiology departments. ABC plays a central role in the set-up of decentralized controlling functions within this institutions. The implementation seems to be a strategic challenge for department managers to get more appropriate data for adequate enterprise decisions. The necessary steps of process analysis can be used for other purposes (Certification, digital migration) as well. (orig.) [de

  19. Radiology in silico-tuberculosis

    International Nuclear Information System (INIS)

    Otto, H.

    1981-01-01

    In spite of a decreasing number of new cases of silico-tuberculosis even today there still remains a serious complication of silicosis. The job of radiology is to recognise the disease, evaluate the course of the disease during therapy and classify the disease for compensation purposes. Due to the pathogenetic and pathomorphologic similarities of silicosis and tuberculosis, it is often difficult and sometimes even impossible to recognise the presence of tuberculosis in cases of silicoses or to identify and isolate the TB component in silico-tuberculosis. Careful consideration of all radiological and clinical parameters improves the accuracy of diagnosis. Since the radiographic examination provides the only method of evaluating the morphologic state of the disease, radiology will keep its central position in the diagnosis of silico-tuberculosis. (orig.) [de

  20. Radiological control manual. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Kloepping, R.

    1996-05-01

    This Lawrence Berkeley National Laboratory Radiological Control Manual (LBNL RCM) has been prepared to provide guidance for site-specific additions, supplements and interpretation of the DOE Radiological Control Manual. The guidance provided in this manual is one methodology to implement the requirements given in Title 10 Code of Federal Regulations Part 835 (10 CFR 835) and the DOE Radiological Control Manual. Information given in this manual is also intended to provide demonstration of compliance to specific requirements in 10 CFR 835. The LBNL RCM (Publication 3113) and LBNL Health and Safety Manual Publication-3000 form the technical basis for the LBNL RPP and will be revised as necessary to ensure that current requirements from Rules and Orders are represented. The LBNL RCM will form the standard for excellence in the implementation of the LBNL RPP.

  1. Analysis of radiology business models.

    Science.gov (United States)

    Enzmann, Dieter R; Schomer, Donald F

    2013-03-01

    As health care moves to value orientation, radiology's traditional business model faces challenges to adapt. The authors describe a strategic value framework that radiology practices can use to best position themselves in their environments. This simplified construct encourages practices to define their dominant value propositions. There are 3 main value propositions that form a conceptual triangle, whose vertices represent the low-cost provider, the product leader, and the customer intimacy models. Each vertex has been a valid market position, but each demands specific capabilities and trade-offs. The underlying concepts help practices select value propositions they can successfully deliver in their competitive environments. Copyright © 2013 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  2. Routine Radiological Environmental Monitoring Plan

    International Nuclear Information System (INIS)

    Bechtel Nevada

    1998-01-01

    The U.S. Department of Energy manages the Nevada Test Site in a manner that meets evolving DOE Missions and responds to the concerns of affected and interested individuals and agencies. This Routine Radiological Monitoring Plan addressess complicance with DOE Orders 5400.1 and 5400.5 and other drivers requiring routine effluent monitoring and environmental surveillance on the Nevada Test Site. This monitoring plan, prepared in 1998, addresses the activities conducted onsite NTS under the Final Environmental Impact Statement and Record of Decision. This radiological monitoring plan, prepared on behalf of the Nevada Test Site Landlord, brings together sitewide environmental surveillance; site-specific effluent monitoring; and operational monitoring conducted by various missions, programs, and projects on the NTS. The plan provides an approach to identifying and conducting routine radiological monitoring at the NTS, based on integrated technical, scientific, and regulatory complicance data needs

  3. Radiological control manual. Revision 1

    International Nuclear Information System (INIS)

    Kloepping, R.

    1996-05-01

    This Lawrence Berkeley National Laboratory Radiological Control Manual (LBNL RCM) has been prepared to provide guidance for site-specific additions, supplements and interpretation of the DOE Radiological Control Manual. The guidance provided in this manual is one methodology to implement the requirements given in Title 10 Code of Federal Regulations Part 835 (10 CFR 835) and the DOE Radiological Control Manual. Information given in this manual is also intended to provide demonstration of compliance to specific requirements in 10 CFR 835. The LBNL RCM (Publication 3113) and LBNL Health and Safety Manual Publication-3000 form the technical basis for the LBNL RPP and will be revised as necessary to ensure that current requirements from Rules and Orders are represented. The LBNL RCM will form the standard for excellence in the implementation of the LBNL RPP

  4. Radiological impacts of phosphogypsum.

    Science.gov (United States)

    Al Attar, Lina; Al-Oudat, Mohammad; Kanakri, Salwa; Budeir, Youssef; Khalily, Hussam; Al Hamwi, Ahmad

    2011-09-01

    This study was carried out to assess the radiological impact of Syrian phosphogypsum (PG) piles in the compartments of the surrounding ecosystem. Estimating the distribution of naturally occurring radionuclides (i.e. (226)Ra, (238)U, (232)Th, (210)Po and (210)Pb) in the raw materials, product and by-product of the Syrian phosphate fertilizer industry was essential. The data revealed that the concentrations of the radionuclides were enhanced in the treated phosphate ore. In PG, (226)Ra content had a mean activity of 318 Bq kg(-1). The uranium content in PG was low, ca. 33 Bq kg(-1), because uranium remained in the phosphoric acid produced. Over 80% of (232)Th, (210)Po and (210)Pb present partitioned in PG. The presence of PG piles did not increase significantly the concentration of (222)Rn or gamma rays exposure dose in the area studied. The annual effective dose was only 0.082 mSv y(-1). The geometric mean of total suspended air particulates (TSP) ca. 85 μg m(-3). The activity concentration of the radionuclides in filtrates and runoff waters were below the detection limits (ca. 0.15 mBq L(-1) for (238)U, 0.1 mBq L(-1) for (232)Th and 0.18 mBq L(-1) for both of (210)Po and (210)Pb); the concentration of the radionuclides in ground water samples and Qattina Lake were less than the permissible limits set for drinking water by the World Health Organisation, WHO, (10, 1 and 0.1 Bq L(-1) for (238)U, (232)Th and both of (210)Po and (210)Pb, respectively). Eastern sites soil samples of PG piles recorded the highest activity concentrations, i.e. 26, 33, 28, 61 and 40 Bq kg(-1) for (226)Ra, (238)U, (232)Th, (210)Po and (210)Pb, respectively, due to the prevailing western and north-western wind in the area, but remained within the natural levels reported in Syrian soil (13-32 Bq kg(-1) for (226)Ra, 24.9-62.2 Bq kg(-1) for (238)U and 10-32 Bq kg(-1) for (232)Th). The impact of PG piles on plants varied upon the plant species. Higher concentrations of the radionuclides were

  5. Radiological comparative study of bone features in malignant lymphomas

    International Nuclear Information System (INIS)

    Sciascia, R.; Albisinni, U.; Gherlinzoni, F.

    1987-01-01

    The radiological features of bone lesions in patients affected by malignant lymphoma (Hodgkin's lymphoma, non-Hodgkin's lymphoma and primary non-Hodgkin's lymphoma of bone) were studied. For each bone lesion the site and type of alteration, the involvement of the cortex and adjacent soft tissue, the periosteal reaction and the presence of a pathological fracture were considered. The radiological aggressiveness of bone lesions in malignant lymphoma was assessed on the basis of these data according to Lodwick criteria; the lower aggressiveness of bone lesions of Hodgkin's than in non-Hodgkin's lymphoma is stressed

  6. Product kerma air area and effective dose in dental radiology

    International Nuclear Information System (INIS)

    Mauro, Rodrigo A.P.; Souza, M. Daiane M.; Costa, Alessandro M.

    2016-01-01

    The main purpose of patient dosimetry in diagnostic radiology is to determine dosimetric quantities for the establishment and use of reference levels and comparative risk assessment. The use of the air kerma-area product, P KA , has been suggested in dental radiology, as this quantity is more closely related to risk. The aim of this study was to perform a preliminary survey of P KA and effective dose in different types of dental examinations. The future perspective is a large-scale survey for the establishment and use of diagnostic reference levels in dentistry in Brazil. (author)

  7. Radiological planning and implementation for nuclear-facility decommissioning

    International Nuclear Information System (INIS)

    Valentine, A.M.

    1982-01-01

    The need and scope of radiological planning required to support nuclear facility decommissioning are issues addressed in this paper. The role of radiation protection engineering and monitoring professionals during project implementation and closeout is also addressed. Most of the discussion focuses on worker protection considerations; however, project support, environmental protection and site release certification considerations are also covered. One objective is to identify radiological safety issues that must be addressed. The importance of the issues will vary depending on the type of facility being decommissioned; however, by giving appropriate attention to these issues difficult decommissioning projects can be accomplished in a safer manner with workers and the public receiving minimal radiation exposures

  8. Total filmless digital radiology service

    International Nuclear Information System (INIS)

    Mun, S.K.; Goeringer, F.; Benson, H.; Horii, S.C.

    1989-01-01

    The completion of a comprehensive picture archiving and communication system (PACS) at Georgetown University Hospital has allowed us to identify a number of technical, administrative, personnel, and operational issues that will affect a total digital radiology service. With a hospital-wide digital imaging network system, computer simulation of communications and storage options, and economic modeling, we have developed a feasibility study and implementation strategy for the smooth transition to a nearly filmless radiology service over the next several years. This paper describes the technical and operational requirements for various database operations, workstations (used in diagnosis, review, and education), and communications. Site and installation planning, personnel training, and transition operations are discussed

  9. History of Polish gastrointestinal radiology.

    Science.gov (United States)

    Urbanik, A

    2003-12-01

    As early as several days after the publication of the information concerning Roentgen's discovery the first radiological examinations were performed in Poland. The new method was immediately introduced into medical practice, including gastroenterology. In that pioneer period the most important works were those by Walery Jaworski who was the first man in the world to perform an X-ray of gall stones as well as the stomach with the use of a contrast medium. In its more-than-a-hundred-year history Polish gastrointestinal radiology has attempted not only to catch up with the world science, but it also has made a considerable contribution to its development.

  10. Juvenile hyaline fibromatosis. Radiological diagnosis

    International Nuclear Information System (INIS)

    Fuentes, R.; Sar, V.; Cabrera, J.J.; Diaz, L.; Hernandez, B.; Valeron, P.; Baez, O.; Rodriguez, M.

    1993-01-01

    Juvenile hyaline fibromatosis (JHF) is a rare disorder of unknown etiology, very few cases of which have been reported in the literature. It presents similarities to other fibromatosys, but has its particular radiological features which differentiate it from them. The clinical findings consist of several, slow growing, subcutaneous nodules, flexion contractures of the joints which can lead to disability, gingival hypertrophy and muscular atrophy. The suspected radiological diagnosis is confirmed by electron microscopy study of the nodules, although light microscopy can also reveal suggestive images. Author (9 refs.)

  11. Improving occupational radiological protection programs

    International Nuclear Information System (INIS)

    Kindley, W.R.

    1983-01-01

    The Institute of Nuclear Power Operations (INPO) was formed to help utilities, primarily through evaluations and site visits, to do more to enhance overall plant operational safety. INPO has completed one evaluation of radiological protection at each operating plant and a second evaluation at about half of them. Evaluation results indicate major efforts in radiological protection are needed in (1) protection procedures; (2) incorporation of exposure reduction techniques as a routine and integral part of job planning; (3) rigorous chemistry control; (4) improved training; and (5) reduction of radioactive solid wastes. INPO advises that more management involvement is needed to reduce exposure to workers. 6 figures

  12. Laboratory of environmental radiological surveillance

    International Nuclear Information System (INIS)

    Mendez G, A.; Marcial M, F.; Giber F, J.; Montiel R, E.; Leon del V, E.; Rivas C, I.; Leon G, M.V.; Lagunas G, E.; Aragon S, R.; Juarez N, A.; Alfaro L, M.M.

    1991-12-01

    The department of radiological protection of the ININ requests the collaboration of the Engineering Unit for the elaboration of the work project of the laboratory of environmental radiological surveillance. The emission of radioactive substances to the atmosphere like consequence of the normal operation of the Nuclear Center, constitutes an exhibition source from the man to the radiations that it should be appropriately watched over and controlled to be able to determine the population's potential exhibition that it lives in the area of influence of the installation. (Author)

  13. Radiological diagnosis of pulmonary hypertension

    International Nuclear Information System (INIS)

    Huebsch, P.; Jenny, C.; Schwaighofer, B.; Seidl, G.; Burghuber, O.C.

    1987-01-01

    In 43 patients with obstructive and restrictive lung disease a catheterisation of the right heart with measurement of pulmonary artery pressure was performed. In a retrospective study several radiological parameters of pulmonary hypertension were evaluated on the chest radiographs of these patients. Considering those parameters on the p.a. and lateral chest radiograph, the diagnosis of pulmonary hypertension in patients with elevated pulmonary artery pressure at rest can be made with great accuracy. When pulmonary artery pressure is elevated only during exercise, the accuracy of radiological diagnosis is much lower. (orig.) [de

  14. Radiological health training resources, 1975

    International Nuclear Information System (INIS)

    1975-01-01

    The Division of Training and Medical Applications is the component of the Bureau of Radiological Health which has the responsibility for providing training assistance to the Nation's radiological health agencies. Recognizing that these agencies are establishing their own user and personnel training programs, the Division offers through the Training Resources Center a variety of educational materials which may be utilized for specific training purposes. This bulletin contains a list of educational materials, including publications, booklets, slides and transparencies, movies, video tapes, training guides, and training seminars for the education of x-ray technicians in radiation protection

  15. Radiology of vertical banded gastroplasty

    International Nuclear Information System (INIS)

    Leekam, R.N.; Deitel, M.; Shankar, L.; Salsberg, B.

    1987-01-01

    Vertical banded gastroplasty is now the most common procedure for the surgical treatment of obesity. In the past 4 years 120 patients have been referred for radiologic examination. This exhibit describes the normal and abnormal findings in many of these patients. The authors divided radiologic abnormalities into three groups: abnormalities of the partition, abnormalities of the banded channel, and ulcers and extragastric leaks. The authors' examination technique has been adapted from those described by others, our important addition being the preliminary precontrast film, on which the staple lines can be examined. This has proved most effective in the detection of partition defects

  16. Radiological emergencies the first response

    International Nuclear Information System (INIS)

    2011-11-01

    This national training course about radiological emergencies first answer include: Targets and preparation for emergency response in case of a nuclear or radiological accident. Operations center, action guide for fire fighting, medical coverage, forensic test, first aid, basic instrumentation for radiation, safety equipment, monitoring radiation, gamma rays, personnel exposed protection , radiation exposure rate, injury and illness for radiation, cancer risk, contamination, decontamination and treatment, markers, personnel dosimetry, training, medical and equipment transportation, shielded and tools. Psychological, physical (health and illness), economical (agriculture and industry) and environment impacts. Terrorist attacks, security belts. Support and international agreements (IAEA)

  17. Thymic masses: A radiological review | Mittal | SA Journal of Radiology

    African Journals Online (AJOL)

    SA Journal of Radiology. Journal Home · ABOUT · Advanced Search · Current Issue · Archives · Journal Home > Vol 17, No 3 (2013) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register · Download this PDF file. The PDF file you selected should load here if your Web ...

  18. Orthopedic radiology in the postoperative patient (practical orthopedic radiology)

    International Nuclear Information System (INIS)

    Weissman, B.N.; Gelman, M.I.

    1987-01-01

    This course examines various aspects of the radiologic examination of postoperative orthopedic patients. The operative indications, pertinent aspects of surgical technique, expected postoperative radiographic appearances, and radiographic findings indicating postoperative complications are discussed. The evaluation of total joint replacement surgery, spinal surgery, lower extremity procedures, and failed orthopedic devices and appliances are covered

  19. Work procedures and risk factors for high rdiation exposure among radiologic technologists in South Korea

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Young; Choi, Yeong Chull [Dept. of Preventive Medicine, Keimyung University College of Medicine, Daegu (Korea, Republic of); Lee, Won Jin; Cha, Eun Shil [Dept. of Preventive Medicine, Korea University College of Medicine, Seoul (Korea, Republic of)

    2016-12-15

    Radiologic technologists currently consist of 31.5% among diagnostic radiation workers in South Korea. Among diagnostic radiation workers, radiologic technologists receive the highest annual and collective doses in South Korea. Comprehensive assessment of the work practices and associated radiation doses from diagnostic radiology procedures should be undertaken for effective prevention for radiologic technologists. Using the national survey, this study aimed (1) to explore the distribution of the work procedures performed by gender, (2) to evaluate occupational radiation exposure by work characteristics and safety compliance, (3) to identify the primary factors influencing high radiation exposure among radiologic technologists in South Korea. This study provided detailed information on work practices, number of procedures performed on weekly basis, and occupational radiation doses among radiologic technologists in South Korea. Average radiation dose for radiologic technologists is higher than other countries, and type of facility, work safety, and wearing lead apron explained quite a portion of increased risk in the association between radiology procedures and radiation exposure among radiologic technologists.

  20. Work procedures and risk factors for high rdiation exposure among radiologic technologists in South Korea

    International Nuclear Information System (INIS)

    Kim, Jae Young; Choi, Yeong Chull; Lee, Won Jin; Cha, Eun Shil

    2016-01-01

    Radiologic technologists currently consist of 31.5% among diagnostic radiation workers in South Korea. Among diagnostic radiation workers, radiologic technologists receive the highest annual and collective doses in South Korea. Comprehensive assessment of the work practices and associated radiation doses from diagnostic radiology procedures should be undertaken for effective prevention for radiologic technologists. Using the national survey, this study aimed (1) to explore the distribution of the work procedures performed by gender, (2) to evaluate occupational radiation exposure by work characteristics and safety compliance, (3) to identify the primary factors influencing high radiation exposure among radiologic technologists in South Korea. This study provided detailed information on work practices, number of procedures performed on weekly basis, and occupational radiation doses among radiologic technologists in South Korea. Average radiation dose for radiologic technologists is higher than other countries, and type of facility, work safety, and wearing lead apron explained quite a portion of increased risk in the association between radiology procedures and radiation exposure among radiologic technologists.

  1. Citation classics in radiology journals: the 100 top-cited articles, 1945-2012.

    Science.gov (United States)

    Yoon, Dae Young; Yun, Eun Joo; Ku, You Jin; Baek, Sora; Lim, Kyoung Ja; Seo, Young Lan; Yie, Miyeon

    2013-09-01

    The number of citations an article receives after its publication reflects its impact in the scientific community. The aim of this study was to identify and characterize the 100 top-cited articles published in radiology journals. The top-cited articles published in 12 radiology journals were identified using the database of Science Citation Index Expanded (1945-2012). The 100 top-cited articles were selected and analyzed with regard to the number of citations, year of publication, publishing journal, authorship, institution and country of origin, type of article, radiologic subspecialty, main topic, and radiologic technique. The 100 top-cited articles were published in eight radiology journals, led by Radiology (n=67) and followed by the American Journal of Roentgenology (n=11). These articles were published between 1939 and 2006 with a mean of 664.3 citations per article (range, 371-6931). Seventy-eight articles were published after 1979, 57 originated from the United States, and 69 were original articles. The most common subspecialties of study were interventional radiology (n=19), neuroradiology (n=15), and breast imaging (n=11). The main topics of articles were radiofrequency ablation of hepatic tumors (n=9), followed by receiver operating characteristic curves (n=6). Our study presents a detailed list and analysis of the 100 top-cited articles published in radiology journals, which provides insight into historical developments in the field of radiology.

  2. Teaching radiology to medical students: an integrated approach.

    Science.gov (United States)

    Collins, Jannette; Dotti, Susan L; Albanese, Mark A

    2002-09-01

    This study assessed medical student satisfaction with radiology lectures integrated into the 3rd-year student internal medicine clerkship, compared with faculty lectures in an independent radiology course, and investigated the effects of integrated instruction on departmental compensation from the medical school. Students' evaluations were compared, with two-way analysis of variance, for faculty who presented lectures in an integrated radiology course and faculty who presented lectures in an independent radiology course from July 1998 to June 2001. Radiology department compensation from the medical school for each course was computed per contact hour. For the integrated course (663 evaluations), the mean overall faculty rating was 1.44 (1 = excellent, 5 = poor), lower (more positive) than the mean overall rating of 1.53 for the independent course (518 evaluations) (P = .037). The interaction between type of instruction and topic was significant only for chest and musculoskeletal imaging, which were rated more positive and less positive in the integrated course, respectively (P budgeting process, awarding greater compensation per contact hour for participation in the integrated course. If only lecture hours are considered, compensation was greater for the independent course.

  3. Needle stick injury in a radiology department: a decade analysis

    International Nuclear Information System (INIS)

    Sayani, R.; Rajani, A.

    2012-01-01

    Objectives: To determine the frequency of needle stick injury in health care workers of radiology department. Study type, settings and duration: Cross sectional, observational study conducted at the Radiology department of Aga Khan University hospital from January 2000 to May 2010. Subject and Methods: All self-reported needle stick injuries data of Health care workers of radiology department was recorded. The personnel involved (Radiologist, resident, radiographer, nurses etc), area of working and the causes of injury were identified including the procedural or post procedural details. Patient's status of hepatitis or blood borne infection was also noted. Data was recorded and analyzed in Excel worksheet. Results: A total of 55 health workers reported needle stick injuries at all sections of radiology departments with maximum number needle stick injuries at general radiography, fluoroscopy and IVP section. Radiographers and radiology residents received the maximum number of injuries. Major cause of injury was cannulation however, many injuries occurred during disposing or handling of bin. In majority of cases the patients were not infected with any known blood borne infections. Conclusions: Doctors and nurses get needle-stick injuries while carrying out clinical procedures, while, ancillary staff get infected post procedure during disposal of garbage. Policy message: Good occupational health and safety practices must be promoted to all staff. Safer disposal of needles is an important area where practice and procedure needs to be carefully reviewed. It is necessary to undertake a risk assessment, to offer counseling and Post Exposure Prophylaxis and treatment where necessary. (author)

  4. Information extraction from multi-institutional radiology reports.

    Science.gov (United States)

    Hassanpour, Saeed; Langlotz, Curtis P

    2016-01-01

    The radiology report is the most important source of clinical imaging information. It documents critical information about the patient's health and the radiologist's interpretation of medical findings. It also communicates information to the referring physicians and records that information for future clinical and research use. Although efforts to structure some radiology report information through predefined templates are beginning to bear fruit, a large portion of radiology report information is entered in free text. The free text format is a major obstacle for rapid extraction and subsequent use of information by clinicians, researchers, and healthcare information systems. This difficulty is due to the ambiguity and subtlety of natural language, complexity of described images, and variations among different radiologists and healthcare organizations. As a result, radiology reports are used only once by the clinician who ordered the study and rarely are used again for research and data mining. In this work, machine learning techniques and a large multi-institutional radiology report repository are used to extract the semantics of the radiology report and overcome the barriers to the re-use of radiology report information in clinical research and other healthcare applications. We describe a machine learning system to annotate radiology reports and extract report contents according to an information model. This information model covers the majority of clinically significant contents in radiology reports and is applicable to a wide variety of radiology study types. Our automated approach uses discriminative sequence classifiers for named-entity recognition to extract and organize clinically significant terms and phrases consistent with the information model. We evaluated our information extraction system on 150 radiology reports from three major healthcare organizations and compared its results to a commonly used non-machine learning information extraction method. We

  5. Radiology in Medical Education: A Pediatric Radiology Elective as a Template for Other Radiology Courses.

    Science.gov (United States)

    Hilmes, Melissa A; Hyatt, Eddie; Penrod, Cody H; Fleming, Amy E; Singh, Sudha P

    2016-03-01

    Traditionally, the pediatric radiology elective for medical students and pediatric residents constituted a morning teaching session focused mainly on radiography and fluoroscopy. A more structured elective was desired to broaden the exposure to more imaging modalities, create a more uniform educational experience, and include assessment tools. In 2012, an introductory e-mail and formal syllabus, including required reading assignments, were sent to participants before the start date. A rotating weekly schedule was expanded to include cross-sectional imaging (ultrasound, CT, MR) and nuclear medicine. The schedule could accommodate specific goals of the pediatric resident or medical student, as requested. Starting in 2013, an online pre-test and post-test were developed, as well as an online end-of-rotation survey specific to the pediatric radiology elective. Taking the Image Gently pledge was required. A scavenger hunt tool, cue cards, and electronic modules were added. Pre-test and post-test scores, averaged over 2 years, showed improvement in radiology knowledge, with scores increasing by 27% for medical students and 21% for pediatric residents. Surveys at the end of the elective were overwhelmingly positive, with constructive criticism and complimentary comments. We have successfully created an elective experience in radiology that dedicates time to education while preserving the workflow of radiologists. We have developed tools to provide a customized experience with many self-directed learning opportunities. Our tools and techniques are easily translatable to a general or adult radiology elective. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  6. Radiological findings of hemophilia

    International Nuclear Information System (INIS)

    Choi, Chul Uk; Choi, Kwung Uk; Kim, Yong Chul; Shin, Kyoung Ja; Lee, Sang Chun

    1987-01-01

    A hemophilia is a well known hereditary disorder of blood coagulation which bleeds mostly in the large joints and frequently in central nervous system, abdominal organs and soft tissues. Recently using combined computed tomography and ultrasonography, more accurate location and extent of the lesion can be detected. Authors views proven 36 cases of hemophilia with analysis of their simple X-ray, computed tomography and ultrasonography. The results were as follows: 1. All 36 patients were male, and age distribution was 2-16 year. 2. Most patients showed type A (97.2%) and type B (2.8%) in 36 cases. 3. A hemophilia arthropathy (30 cases) was developed mostly hemophilia in the knee joint (67%), and rest of involvement in the elbow, ankle and hip joint. 4. On computed tomography of CNS lesion (14/36 cases); ICH in 6 cases (43%), EDH in 2 cases (14%), combined type in 3 cases (21%) and SAH in 3 cases (21%). 5. Ultrasonography, retroperitoneal hematoma were detected in 4 cases, including ileopsoas hematoma (2 cases)

  7. Radiological control technician: Training program management manual

    International Nuclear Information System (INIS)

    1992-10-01

    This manual defines and describes the DOE Radiological Control Technician Core Training Program qualification and training process, material development requirements, standards and policies, and administration. The manual applies to Radiological Control Technician Training Programs at all DOE contractor sites

  8. Radiological findings in maxillary myxoma

    International Nuclear Information System (INIS)

    Bianchi, S.D.; Boccardi, A.; Valente, G.

    1987-01-01

    Four cases of jaw bones myxoma are described, laying special stress on the radiological appearance. Conventional radiogram showed a typical multilocular osteolitic lesion thinning and expanding the cortical bone. This allowed the authors to correctly diagnose the affection. On the contrary CT, showing a unilocular lesion, offered a far less typical representation of the tumor in the two patients who underwent this examination

  9. A radiological control implementation guide

    International Nuclear Information System (INIS)

    Hamley, S.A.

    1993-01-01

    A manual is being developed to explain to line managers how radiological controls are designed and implemented. The manual also fills a gap in the Health Physics literature between textbooks and on-the-floor procedures. It may be helpful to new Health Physicists with little practical experience and to those wishing to improve self-assessment, audit, and appraisal processes. Many audits, appraisals, and evaluations have indicated a need for cultural change, increased vigor and example, and more effective oversight by line management. Inadequate work controls are a frequent and recurring problem identified in occurrence reports and accident investigations. Closer study frequently indicates that many line managers are willing to change and want to achieve excellence, but no effective guidance exists that will enable them to understand and implement a modern radiological control program. The manual is now in draft form and includes information that will be of use to line managers dealing with improving radiological performance and the practical aspects of radiological controls implementation. The manual is expected to be completed by the fall of 1993 and to be used in conjunction with a performance-based self-assessment training program at the Oak Ridge National Laboratory

  10. Digital imaging in cardiovascular radiology

    International Nuclear Information System (INIS)

    Heintzen, P.H.; Brennecke, R.

    1983-01-01

    The present book contains 27 papers presented at an international symposium on digital imaging in cardiovascular radiology held in Kiel in 1982. The main themes were as follows. Introductory reviews, digital systems for X-ray video imaging, quantitative X-ray image analysis, and clinical applications. (MG)

  11. Radiological risk perception in Spain

    International Nuclear Information System (INIS)

    Martinez-Arias, R.; Prades, A.; Meza, R.; Sola, R.

    1997-01-01

    How does society perceive radiation risks?. Is there any logic underlying those perceptions?.The article describes the results of a cross-cultural survey on radiological risk perception applied to a representative sample of the Spanish population. This study has been carried out in the framework of a research project subsidized by the European Union and the CSN. (Author) 16 refs

  12. Radiological findings in Wolfram syndrome

    International Nuclear Information System (INIS)

    Hadidy, Azmy M.; Jarrah, Nadim S.; Al-Till, Maha I.; Ajlouni, Kamal M.; El-Shanti, Haten E.

    2004-01-01

    To determine the precise radiologic findings in Wolfram syndrome (WFS) patients using objective techniques in order to better define the reference population for the clinicl evaluation. 16 patients (6 males, 10 female) with WFS found in 4 families were included in this study.14 patients with WFS-2 came from 3 families while 2 patients with EFS-1 came from one family. All patients were studied at Jordan University Hospital, Amman,Jordan from January 2001 to January 2003 by definite radiologic techniques as part of a thorough clinical comprehesive assesment. These incclude intravenous urography, abdominal and pelvic ultrasonography, barium meal, upper gastrointestinal endoscopy and magnetic resonance imaging with and without contrasts to the brain and the pituitary glands.5 of the female ptients had a small uterus. Spina bifida was found in 7, hydronephrosis in 9 and hydroureter in 5 patiets. Peptic ulcer was detected in 10 out of 14 available patients and helicobacter pylori in 7 out of 16 patients. Atrophy was detected was detected in all brains, 9 brain stems, 12 cerebellums and 14 optic tracts of all patients. The size of pituitary glands was variable. The particular radiological assesment of the patients with WFS proved that, urinary tract dialtation was detected in WFS-1and WFS-2 patients though all WFS-2 patients.No significant radiologic difference was between patients with WFS-1 and WFS-2. (author)

  13. Image Quality in Vascular Radiology

    International Nuclear Information System (INIS)

    Vanhavere, F.; Struelens, L.

    2005-01-01

    In vascular radiology, the radiologists use the radiological image to diagnose or treat a specific vascular structure. From literature, we know that related doses are high and that large dose variability exists between different hospitals. The application of the optimization principle is therefore necessary and is obliged by the new legislation. So far, very little fieldwork has been performed and no practical instructions are available to do the necessary work. It's indisputable that obtaining quantitative data is of great interest for optimization purposes. In order to gain insight into these doses and the possible measures for dose reduction, we performed a comparative study in 7 hospitals. Patient doses will be measured and calculated for specific procedures in vascular radiology and evaluated against their most influencing parameters. In view of optimization purposes, a protocol for dose audit will be set-up. From the results and conclusions in this study, experimentally based guidelines will be proposed, in order to improve clinical practice in vascular radiology

  14. The Radiology of Renal Trauma

    African Journals Online (AJOL)

    1974-05-15

    May 15, 1974 ... Retrograde pyelography was performed in 3 patients and renal angio- graphy in 22. Of the 210 cases referred, abnormal radio- logical signs were observed in 112. All the radiological in- vestigations were reviewed to assess the frequency of the various findings. RESULTS. The Plain Film of the Abdomen.

  15. Radiology trainer. Torso, internal organs and vessels

    International Nuclear Information System (INIS)

    Staebler, A.; Ertl-Wagner, B.

    2006-01-01

    This book enables students to simulate examinations. The Radiology Trainer series comprises the whole knowledge of radiology in the form of case studies for self-testing. It is based on the best-sorted German-language collection of radiological examinations of all organ regions. Step by step, radiological knowledge is trained in order to make diagnoses more efficient. The book series ensures optimal preparation for the final medical examinations and is also a valuable tool for practical training. (orig.)

  16. Handling of overexposed persons in radiological emergencies

    International Nuclear Information System (INIS)

    Estrada, E.

    2000-01-01

    The purpose of this standard procedure of the criteria in case of radiological emergencies is to describe the standard procedures used to define an radiological accident in terms of the doses received, and to describe the medical procedures for diagnoses and treatment of health hazards caused by external and internal irradiation in radiological emergencies

  17. Standarized radiological hazard analysis for a broad based operational safety program

    International Nuclear Information System (INIS)

    Wadman, W.W. III; Andrews, L.L.

    1992-01-01

    The Radiological hazard Analysis (RHA) Manual provides a methodology and detailed guidance for systematic analysis of radiological hazards over a broad spectrum of program functions, housed in a wide variety of facilities. Radiological programs at LANL include: research and experimentation; routine materials operations; production; non-destructive examination or testing; isotope and machine produced radiations; chemistry; and metallurgy. The RHA permits uniform evaluation of hazard types over a range of several orders of magnitude of hazard severity. The results are used to estimate risk, evaluate types and level or resource allocations, identify deficiencies, and plan corrective actions for safe working environments. 2 refs

  18. A model to determine payments associated with radiology procedures.

    Science.gov (United States)

    Mabotuwana, Thusitha; Hall, Christopher S; Thomas, Shiby; Wald, Christoph

    2017-12-01

    Across the United States, there is a growing number of patients in Accountable Care Organizations and under risk contracts with commercial insurance. This is due to proliferation of new value-based payment models and care delivery reform efforts. In this context, the business model of radiology within a hospital or health system context is shifting from a primary profit-center to a cost-center with a goal of cost savings. Radiology departments need to increasingly understand how the transactional nature of the business relates to financial rewards. The main challenge with current reporting systems is that the information is presented only at an aggregated level, and often not broken down further, for instance, by type of exam. As such, the primary objective of this research is to provide better visibility into payments associated with individual radiology procedures in order to better calibrate expense/capital structure of the imaging enterprise to the actual revenue or value-add to the organization it belongs to. We propose a methodology that can be used to determine technical payments at a procedure level. We use a proportion based model to allocate payments to individual radiology procedures based on total charges (which also includes non-radiology related charges). Using a production dataset containing 424,250 radiology exams we calculated the overall average technical charge for Radiology to be $873.08 per procedure and the corresponding average payment to be $326.43 (range: $48.27 for XR and $2750.11 for PET/CT) resulting in an average payment percentage of 37.39% across all exams. We describe how charges associated with a procedure can be used to approximate technical payments at a more granular level with a focus on Radiology. The methodology is generalizable to approximate payment for other services as well. Understanding payments associated with each procedure can be useful during strategic practice planning. Charge-to-total charge ratio can be used to

  19. Childhood AIDS: pulmonary involvement. Clinico radiological correlation

    International Nuclear Information System (INIS)

    Cinta, C.; Muro, D.; Perez, A.; Otero, M.C.

    1997-01-01

    To determine the different radiological findings in the lung of children presenting human ummunodeficiency virus (HIV) infection. We assess the different radiological patterns and their prevalence. The study deals with 58 children presenting HIV infection. All underwent plain chest radiography at some time during the course of their disease to determine the cause of different respiratory symptoms (dyspnea, fever, cough, etc.).Bronchial lavage was performed in all the children who required intubation due to severe respiratory distress. The results of chest X-ray were normal in 29 children despite the existence of pulmonary symptomatology. The other 29 patients presented pulmonary, including 21 cases of pneumonia (36,2%) in 16 patients, in seven of whom the pathogen was determined by blood culture. Four cases of Pneumocystis carinii (6.89%) were diagnosed by means of bronchial lavage. There were nine children with interstitial pneumonitis, five of the lym-phoid variant (8.62%) and four of unknown origin (6.89%). In contrast to the findings in adults, we have had no cases of pulmonary tuberculosis among our patients The rates of morbidity and mortality among HIV-infected children are associated with lung involvement. However, the prevalence has decreased progressively since the introduction of antiviral agents. Recurrent bacterial pneumonia and opportunistic Pneumocystis carinii infection are the most common types of acute pulmonary involvement. Interstitial pneumonitis usually develops a chronic course. (Author) 15 refs

  20. Radiologic findings of abdominal wall endometriosis

    International Nuclear Information System (INIS)

    Seo, Jung Wook

    2003-01-01

    To evaluate the imaging findings of abdominal wall endometriosis. In seven of 17 patients with surgically proven endometriosis of the abdominal wall, we retrospectively reviewed the findings of radiologic studies such as abdominal US (n=3), CT (n=4), and MRI (n=1). One patient under went more than one type of imaging, apparently. The surgical history of the seven, and their symptoms and preoperative diagnosis were reviewed, and the size, location, margin and nature of the mass, and the contrast enhancement patterns observed at radiologic studies, were assessed. The chief symptoms were palpable abdominal wall mass (n=5) and lower abdominal pain (n=2) around a surgical scar. Previous surgery included cesarean section (n=5), cesarean section with oophorectomy (n=1) and appendectomy (n=1). Masses were located in the subcutaneous fat layer (n=5) or rectus abdominis muscle (n=2), and their maximum diameter was 2.6 cm. Imaging findings, which correlated closely with the pathologic findings, included a well (n=5) or poorly marginated (n=2) solid mass, with a focal cystic area apparent in two cases. Although imaging findings of abdominal wall endometriosis may not be specific for diagnosis, the presence of a solid abdominal mass in female patients of reproductive age with a history of surgery is a diagnostic pointer

  1. Radiologic findings of abdominal wall endometriosis

    Energy Technology Data Exchange (ETDEWEB)

    Seo, Jung Wook [Inje Univ. Ilsan Paik Hospital, Goyang (Korea, Republic of)

    2003-12-01

    To evaluate the imaging findings of abdominal wall endometriosis. In seven of 17 patients with surgically proven endometriosis of the abdominal wall, we retrospectively reviewed the findings of radiologic studies such as abdominal US (n=3), CT (n=4), and MRI (n=1). One patient under went more than one type of imaging, apparently. The surgical history of the seven, and their symptoms and preoperative diagnosis were reviewed, and the size, location, margin and nature of the mass, and the contrast enhancement patterns observed at radiologic studies, were assessed. The chief symptoms were palpable abdominal wall mass (n=5) and lower abdominal pain (n=2) around a surgical scar. Previous surgery included cesarean section (n=5), cesarean section with oophorectomy (n=1) and appendectomy (n=1). Masses were located in the subcutaneous fat layer (n=5) or rectus abdominis muscle (n=2), and their maximum diameter was 2.6 cm. Imaging findings, which correlated closely with the pathologic findings, included a well (n=5) or poorly marginated (n=2) solid mass, with a focal cystic area apparent in two cases. Although imaging findings of abdominal wall endometriosis may not be specific for diagnosis, the presence of a solid abdominal mass in female patients of reproductive age with a history of surgery is a diagnostic pointer.

  2. Teaching Communication Skills to Radiology Residents.

    Science.gov (United States)

    Itri, Jason N; Yacob, Sammy; Mithqal, Ayman

    The transition of health care in the United States from volume to value requires a systems-based approach aligning clinical services across the continuum of care. The ability to communicate effectively and resolve conflict is a critical skill within the systems-based model. Recognizing the essential role of communication in medicine, the Accreditation Council of Graduate Medical Education has designated interpersonal and communication skills a core competency for all residents regardless of specialty. Yet, communication skills are often developed through on-the-job training or not at all. Traditional educational curricula use a predominantly didactic approach without opportunities for trainees to observe, actively experiment, or reflect on what is learned as a part of the learning process. In this article, we describe a 1-day experiential communication skills workshop customized for radiology residents that consists of Myers-Briggs Type Indicator and conflict management sessions designed to develop interpersonal, communication, and conflict management skills through group discussion, role-play, and simulation. The purpose of this educational initiative was to determine the perceived value of an experiential communication skills workshop designed for radiology trainees. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. [Business intelligence in radiology. Challenges and opportunities].

    Science.gov (United States)

    Escher, A; Boll, D

    2015-10-01

    Due to economic pressures and need for higher transparency, a ubiquitous availability of administrative information is needed. Therefore radiology managers should consider implementing business intelligence (BI) solutions. BI is defined as a systemic approach to support decision-making in business administration. It is an important part of the overall strategy of an organization. Implementation and operation is initially associated with costs and for a successful launch important prerequisites must be fulfilled. First, a suitable product must be selected, followed by the technical and organizational implementation. After consideration of the type of data to be collected and a system of key performance indicators must be established. BI replaces classic retrospective business reporting with multidimensional and multifactorial analyses, real-time monitoring, and predictive analyses. The benefits of BI include the rapid availability of important information and the depth of possible data analysis. The simple and intuitive use of modern BI applications by the users themselves (!) combined with a continuous availability of information is the key to success. Professional BI will be an important part of management in radiology in the future.

  4. Emergencies in radiology: a survey of radiologist and radiology trainees

    International Nuclear Information System (INIS)

    Craig, Simon; Naidoo, Parmanand

    2014-01-01

    Emergencies in radiology are infrequent but potentially lethal. Australian and New Zealand radiologists are advised to undergo resuscitation training at least every three years; however, little is known about their experience and confidence in managing common emergencies relevant to their clinical practice. This paper describes the current experience and confidence of radiologists and radiology trainees in Australia and New Zealand in the management of common medical emergencies. A cross-sectional online survey of trainees and fellows of the Royal Australian and New Zealand College of Radiology collected data on training and learning preferences relating to resuscitation and life-support skills, access to emergency medical care, and knowledge, confidence and ability in managing a variety of medical emergencies. There were 602 responses to the survey (response rate 23.4%). The majority of respondents were interested in learning more about the management of contrast reactions, cardiac arrest, ischaemic chest pain and basic life support. Self-rated knowledge, confidence and ability were higher in respondents who had completed life-support training within the previous three years. In this group, however, more than 40% rated their ability at managing contrast reactions as poor or fair, while more than 60% rated their ability as poor or fair for management of cardiac arrest, basic life support, advanced life support and dosing of adrenaline. Preferred resuscitation training modalities included simulation, small-group tutorials and workshops. Self-reported level of skill and expertise in the management of potential emergencies in radiology is suboptimal among a large number of respondents. Consideration should be given to addressing this by improving access to specific training.

  5. Radiology and social media: are private practice radiology groups more social than academic radiology departments?

    Science.gov (United States)

    Glover, McKinley; Choy, Garry; Boland, Giles W; Saini, Sanjay; Prabhakar, Anand M

    2015-05-01

    This study assesses the prevalence of use of the most commonly used social media sites among private radiology groups (PRGs) and academic radiology departments (ARDs). The 50 largest PRGs and the 50 ARDs with the highest level of funding from the National Institutes of Health were assessed for presence of a radiology-specific social media account on Facebook, Twitter, Instagram, Pinterest, YouTube, and LinkedIn. Measures of organizational activity and end-user activity were collected, including the number of posts and followers, as appropriate; between-group comparisons were performed. PRGs adopted Facebook 12 months earlier (P = .02) and Twitter 18 months earlier (P = .02) than did ARDs. A total of 76% of PRGs maintained ≥1 account on the social media sites included in the study, compared with 28% of ARDs (P Instagram, 2%. The prevalence of radiology-specific social media accounts for ARDs was: Facebook, 18%; LinkedIn, 0%; Twitter, 24%; YouTube, 6%; Pinterest, 0%; and Instagram, 0%. There was no significant difference between ARDs and PRGs in measures of end-user or organizational activity on Facebook or Twitter. Use of social media in health care is emerging as mainstream, with PRGs being early adopters of Facebook and Twitter in comparison with ARDs. Competitive environments and institutional policies may be strong factors that influence how social media is used by radiologists at the group and department levels. Copyright © 2015 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  6. Radiology report turnaround: expectations and solutions.

    Science.gov (United States)

    Boland, G W L; Guimaraes, A S; Mueller, P R

    2008-07-01

    The ultimate work product of a radiology department is a finalized radiology report. Radiology stakeholders are now demanding faster report turnaround times (RTAT) and anything that delays delivery of the finalized report will undermine the value of a radiology department. Traditional reporting methods are inherently inefficient and the desire to deliver fast RTAT will always be challenged. It is only through the adoption of an integrated radiology information system (RIS)/picture archiving and communication system (PACS) and voice recognition (VR) system that RTAT can consistently meet stakeholder expectations. VR systems also offer the opportunity to create standardized, higher quality reports.

  7. Fetal dosimetry in diagnostic radiology

    International Nuclear Information System (INIS)

    Faulkner, K.

    2002-01-01

    Diagnostic radiology examinations are frequently performed in all countries because of the benefit that the patient derives from the resultant diagnosis. Given that so many examinations are performed it is inevitable that there will be occasions when the planned exposure of a woman who is known to be pregnant is contemplated. In these circumstances, there must be rigorous justification of the examination and the procedure itself must be optimised as well. Radiation risks from fetal irradiation are well established. These risks fall into three categories: 1) a cancer induction risk (mainly leukaemia); 2) hereditary effects (as the fetus is a potential parent); 3) a risk of serious mental retardation (if the fetus is exposed in the critical 8-15 weeks period when the forebrain is being developed). Risk factors for these effects have been reviewed by the International Commission on Radiological Protection. Special rules apply to the radiology of women who are or who may be pregnant. These rules have been developed to avoid he unintended irradiation of the fetus. These rules have been variously referred to as the 10-day rule and the 28-day rules, in which radiology of potentially pregnant women is restricted to the first 10 or 28 days following menstruation. It is apparent that the advice provided by national bodies varies, as different rules apply internationally, due presumably to a lack of an international consensus on the subject. The advice from the National Radiological Protection Board, the College of Radiographers and the Royal College of Radiologists applies in the United Kingdom. In summary, the advice is that women of child bearing age are asked before a diagnostic radiology examination in which the pelvis is in, or near, the primary beam are asked if they are, or may be, pregnant. If pregnancy can be excluded then the examination can proceed. If it is likely that the patient is pregnant, then the proposed examination must undergo rigorous justification. If

  8. Medical management of radiological accidents in non-specialized clinics: mistakes and lessons

    International Nuclear Information System (INIS)

    Jikia, D.

    2009-01-01

    In 1996-2002 three radiological accidents were developed in Georgia. There were some people injured in those accidents. During medical management of the injured some mistakes and errors were revealed both in diagnostics and scheme of the treatment. The goal of this article is to summarize medical management of the mentioned radiological accidents, to estimate reasons of mistakes and errors, to present the lessons drawn in result of Georgia radiological accidents. There was no clinic with specialized profile and experience. Accordingly due to having no relevant experience late diagnosis can be considered as the main error. It had direct influence on the patients' health and results of treatment. Lessons to be drawn after analyzing Georgian radiological accidents: 1. informing medical staff about radiological injuries (pathogenesis, types, symptoms, clinical course, principles of treatment and etc.); 2. organization of training and meetings in non-specialized clinics or medical institutions for medical staff; 3. preparation of informational booklets and guidelines.(author)

  9. Future of radiological instrumentation

    International Nuclear Information System (INIS)

    Lucas, A.C.

    1988-01-01

    Future trends in the development of radiation protection instrumentation can be expected to be closely related to current trends in political and social activity that drive legislation, rule-making, and standard practice, with assistance provided by trends in material and electronic technology. Wide-range performance will be emphasized to arm the daily worker with instruments that routinely log background rates and, at the same time, are prepared to measure accident rates. Separate and simultaneous accumulation of data from several sensors to ensure complete coverage of the radiation types will be common. Mathematical manipulation of data will provide for summary data logging and, in some cases, solutions to integral equations to provide corrections to experimental data. Instruments will become more reliable by way of self-checking and correction. Miniaturization and large-scale integration of measuring instruments will provide some instrumentation for the people at large. To be effective, the instruments will necessarily cover a wide range and be very reliable. The net result of these several trends will provide for a widespread understanding of radiation protection and an implementation of as low as reasonably achievable among large segments of the population

  10. Use of Radcube for extraction of finding trends in a large radiology practice.

    Science.gov (United States)

    Dang, Pragya A; Kalra, Mannudeep K; Blake, Michael A; Schultz, Thomas J; Stout, Markus; Halpern, Elkan F; Dreyer, Keith J

    2009-12-01

    The purpose of our study was to demonstrate the use of Natural Language Processing (Leximer), along with Online Analytic Processing, (NLP-OLAP), for extraction of finding trends in a large radiology practice. Prior studies have validated the Natural Language Processing (NLP) program, Leximer for classifying unstructured radiology reports based on the presence of positive radiology findings (F (POS)) and negative radiology findings (F (NEG)). The F (POS) included new relevant radiology findings and any change in status from prior imaging. Electronic radiology reports from 1995-2002 and data from analysis of these reports with NLP-Leximer were saved in a data warehouse and exported to a multidimensional structure called the Radcube. Various relational queries on the data in the Radcube were performed using OLAP technique. Thus, NLP-OLAP was applied to determine trends of F (POS) in different radiology exams for different patient and examination attributes. Pivot tables were exported from NLP-OLAP interface to Microsoft Excel for statistical analysis. Radcube allowed rapid and comprehensive analysis of F (POS) and F (NEG) trends in a large radiology report database. Trends of F (POS) were extracted for different patient attributes such as age groups, gender, clinical indications, diseases with ICD codes, patient types (inpatient, ambulatory), imaging characteristics such as imaging modalities, referring physicians, radiology subspecialties, and body regions. Data analysis showed substantial differences between F (POS) rates for different imaging modalities ranging from 23.1% (mammography, 49,163/212,906) to 85.8% (nuclear medicine, 93,852/109,374; p OLAP can help in analysis of yield of different radiology exams from a large radiology report database.

  11. Radiology education: a glimpse into the future

    International Nuclear Information System (INIS)

    Scarsbrook, A.F.; Graham, R.N.J.; Perriss, R.W.

    2006-01-01

    The digital revolution in radiology continues to advance rapidly. There are a number of interesting developments within radiology informatics which may have a significant impact on education and training of radiologists in the near future. These include extended functionality of handheld computers, web-based skill and knowledge assessment, standardization of radiological procedural training using simulated or virtual patients, worldwide videoconferencing via high-quality health networks such as Internet2 and global collaboration of radiological educational resources via comprehensive, multi-national databases such as the medical imaging resource centre initiative of the Radiological Society of North America. This article will explore the role of e-learning in radiology, highlight a number of useful web-based applications in this area, and explain how the current and future technological advances might best be incorporated into radiological training

  12. How Serious Is Threat of Radiological Terrorism?

    Directory of Open Access Journals (Sweden)

    Pavel Kuna

    2009-01-01

    Full Text Available Radiological terrorism (radioterrorism is the deliberate use of radiological weapons. These weapons use radioactive materials to disperse and emit ionizing radiation. There are two classes of radiological weapons – radiological dispersal devices (RDD and radiation emission devices (RED. These weapons would no cause massive numbers of dead. In most radiological attack scenarios, only few people may die immediately or shortly after exposure to the ionizing radiation. Nevertheless, many people could develop cancer within several years to decade after the radiological weapon attack. Such attack might spur panic and result in high economic costs because of the need for decontamination and possible tearing down and reconstruction of contaminated structures. Thus, radiological weapons may be considered rather weapons of mass disruption than weapons threating of human life.

  13. How Serious Is Threat of Radiological Terrorism?

    Science.gov (United States)

    Kuna, Pavel; Hon, Zdeněk; Patočka, Jiří

    2009-01-01

    Radiological terrorism (radioterrorism) is the deliberate use of radiological weapons. These weapons use radioactive materials to disperse and emit ionizing radiation. There are two classes of radiological weapons - radiological dispersal devices (RDD) and radiation emission devices (RED). These weapons would no cause massive numbers of dead. In most radiological attack scenarios, only few people may die immediately or shortly after exposure to the ionizing radiation. Nevertheless, many people could develop cancer within several years to decade after the radiological weapon attack. Such attack might spur panic and result in high economic costs because of the need for decontamination and possible tearing down and reconstruction of contaminated structures. Thus, radiological weapons may be considered rather weapons of mass disruption than weapons threating of human life.

  14. Derivation of irrigation requirements for radiological impact assessments.

    Science.gov (United States)

    Almahayni, Talal; Crout, Neil M J

    2016-11-01

    When assessing the radiological impacts of radioactive waste disposal, irrigation using groundwater contaminated with releases from the disposal system is a principal means of crop and soil contamination. In spite of their importance for radiological impact assessments, irrigation data are scarce and often associated with considerable uncertainty for several reasons including limited obligation to measure groundwater abstraction and differences in measuring methodologies. Further uncertainty arises from environmental (e.g. climate and landscape) change likely to occur during the assessment long time frame. In this paper, we derive irrigation data using the crop growth AquaCrop model relevant to a range of climates, soils and crops for use in radiological impact assessments. The AquaCrop estimates were compared with actual irrigation data reported in the literature and with estimates obtained from simple empirical methods proposed for use in radiological impact assessments. Further, the AquaCrop irrigation data were analysed using mixed effects modelling to investigate the effects of climate, soil and crop type on the irrigation requirement. Irrigation estimates from all models were within a reasonable range of the measured values. The AquaCrop estimates, however, were at the higher end of the range and higher than those from the empirical methods. Nevertheless, they may be more appropriate for conservative radiological assessments. The use of mixed effects modelling allowed for the characterisation of crop-specific variability in the irrigation data, and in contrast to the empirical methods, the AquaCrop and the mixed effects models accounted for the soil effect on the irrigation requirement. The approach presented in this paper is relevant for obtaining irrigation data for a specific site under different climatic conditions as well as for generic dose assessments. To the best of our knowledge, this is one of the most comprehensive analyses of irrigation data in

  15. Primary Spinal Chondrosarcoma: Radiologic Findings with Pathologic Correlation

    Energy Technology Data Exchange (ETDEWEB)

    Lloret, I.; Server, A. [The Norwegian Radium Hospital, Oslo (Norway). Depts. of Radiology and Pathology; Bjerkehagen, B. [Ullevaal Univ. Hospital, Oslo (Norway). Dept. of Neuroradiology

    2006-02-15

    Purpose: To describe the radiologic appearance of the four types of primary spinal chondrosarcoma (CHS) (conventional intramedullary, juxtacortical, clear cell, and mesenchymal) and to correlate with histopathologic findings. Material and Methods: A retrospective review was carried out of 5 patients with histopathologically confirmed primary spinal CHS; 3 F and 2 M ranging in age between 27 and 66 years (mean 40.2; median 39). Charts, conventional radiographs, computed tomography scans, and magnetic resonance images were reviewed. All the patients underwent surgical excision, followed by postoperative chemotherapy (1 patient) and radiotherapy (3 patients). Follow-up was available for all patients but one. The mean follow-up was 42 months (14-120 months). Histopathological specimens for all patients were available for review. Results: Vertebral column distribution was 3 thoracic (60%), 1 cervical (20%), and 1 lumbar (20%). Neurological deficits were present in 3 (60%) cases. The radiological appearance of the four types of primary spinal CHS varies with specific lesion type. Imaging findings suggest diagnosis of the conventional intramedullary and juxtacortical types. While the clear cell and mesenchymal types show some distinctive features, these do not allow confident radiologic diagnosis. Conclusion: The radiologist must be aware of imaging features of these tumors in order to improve diagnostic accuracy, treatment planning, and prognosis.

  16. Primary Spinal Chondrosarcoma: Radiologic Findings with Pathologic Correlation

    International Nuclear Information System (INIS)

    Lloret, I.; Server, A.; Bjerkehagen, B.

    2006-01-01

    Purpose: To describe the radiologic appearance of the four types of primary spinal chondrosarcoma (CHS) (conventional intramedullary, juxtacortical, clear cell, and mesenchymal) and to correlate with histopathologic findings. Material and Methods: A retrospective review was carried out of 5 patients with histopathologically confirmed primary spinal CHS; 3 F and 2 M ranging in age between 27 and 66 years (mean 40.2; median 39). Charts, conventional radiographs, computed tomography scans, and magnetic resonance images were reviewed. All the patients underwent surgical excision, followed by postoperative chemotherapy (1 patient) and radiotherapy (3 patients). Follow-up was available for all patients but one. The mean follow-up was 42 months (14-120 months). Histopathological specimens for all patients were available for review. Results: Vertebral column distribution was 3 thoracic (60%), 1 cervical (20%), and 1 lumbar (20%). Neurological deficits were present in 3 (60%) cases. The radiological appearance of the four types of primary spinal CHS varies with specific lesion type. Imaging findings suggest diagnosis of the conventional intramedullary and juxtacortical types. While the clear cell and mesenchymal types show some distinctive features, these do not allow confident radiologic diagnosis. Conclusion: The radiologist must be aware of imaging features of these tumors in order to improve diagnostic accuracy, treatment planning, and prognosis

  17. Radiology of torture

    International Nuclear Information System (INIS)

    Vogel, H.; Schmitz-Engels, F.; Grillo, C.

    2007-01-01

    Purpose: Although there are different definitions of torture, there is no contradiction that torture exists. Changes resulting from torture are shown to demonstrate which findings can be visualized with X-rays. Material: The findings come from rehabilitation centers for victims of torture, collections of others and from personal observations. They are documented with plain films, scintigraphy, computed tomography, and MRI. Results: On fingers, hand, and arm, and on toes, foot and leg, imaging can visualize changes and pathologies which are characteristic for preceding torture. On head, neck, and trunk, this is only rarely the case; this is understandable, when one considers that force having been directed against these regions of the body will more often be deadly than that applied on limbs only. Special forms of torture with the use of water and electricity are also described. It is pointed out that multiple forms of torture do not leave traces, which might be made visible by diagnostic imaging. The cases are part of a selection: the victims have survived (which means that these types of torture permitted survival; injuries of hand and foot do not endanger the survival as opposed to stab wounds to the head, chest, and abdomen, into the anus and the genitals, which are often mortal. Mutilation by torture motivates the torturer to eliminate any proof of his actions and to kill the victim. Public interest induces a selection of methods, which leave no traces. Possibly (and hopefully) some special forms of torture, which use chemical substances that act on the psyche and the central nervous system, might become visible by functional MRI in the near future. Conclusion: Torture is likely to occur when findings are seen to be typical or characteristic forms of torture, when age of fractures and pattern of beatings and other injuries corroborate the indications of the victim, and when these findings correspond to the procedures known from the region of application the

  18. Computational radiology for orthopaedic interventions

    CERN Document Server

    Li, Shuo

    2016-01-01

    This book provides a cohesive overview of the current technological advances in computational radiology, and their applications in orthopaedic interventions. Contributed by the leading researchers in the field, this volume covers not only basic computational radiology techniques such as statistical shape modeling, CT/MRI segmentation, augmented reality and micro-CT image processing, but also the applications of these techniques to various orthopaedic interventional tasks. Details about following important state-of-the-art development are featured: 3D preoperative planning and patient-specific instrumentation for surgical treatment of long-bone deformities, computer assisted diagnosis and planning of periacetabular osteotomy and femoroacetabular impingement, 2D-3D reconstruction-based planning of total hip arthroplasty, image fusion for  computer-assisted bone tumor surgery, intra-operative three-dimensional imaging in fracture treatment, augmented reality based orthopaedic interventions and education, medica...

  19. Nuclear law and radiological accidents

    International Nuclear Information System (INIS)

    Frois, F.

    1998-01-01

    Nuclear activities in Brazil, and particularly the radiological accident of Goiania, are examined in the light of the environmental and nuclear laws of Brazil and the issue of responsibility. The absence of legislation covering radioactive wastes as well as the restrictions on Brazilian States to issue regulations covering nuclear activities are reviewed. The radiological accident and its consequences, including the protection and compensation of the victims, the responsibility of the shareholders of the Instituto Goiano de Radioterapia, operator of the radioactive source, the provisional storage and the final disposal at Abadia de Goias of the radioactive waste generated by the accident are reviewed. Finally, nuclear responsibility, the inapplicability of the Law 6453/77 which deals with nuclear damages, and the state liability regime are analysed in accordance with the principles of the Brazilian Federal Constitution. (author)

  20. Radiology applications of financial accounting.

    Science.gov (United States)

    Leibenhaut, Mark H

    2005-03-01

    A basic knowledge of financial accounting can help radiologists analyze business opportunities and examine the potential impacts of new technology or predict the adverse consequences of new competitors entering their service area. The income statement, balance sheet, and cash flow statement are the three basic financial statements that document the current financial position of the radiology practice and allow managers to monitor the ongoing financial operations of the enterprise. Pro forma, or hypothetical, financial statements can be generated to predict the financial impact of specific business decisions or investments on the profitability of the practice. Sensitivity analysis, or what-if scenarios, can be performed to determine the potential impact of changing key revenue, investment, operating cost or financial assumptions. By viewing radiology as both a profession and a business, radiologists can optimize their use of scarce economic resources and maximize the return on their financial investments.

  1. Ethical values in radiological protection

    International Nuclear Information System (INIS)

    Oughton, D.H.

    1996-01-01

    Issues like consent, equity, control and responsibility are important for an ethical evaluation of radiation risks. This paper discusses the incorporation of ethical values in radiological protection policy and compares how ICRP recommendations promote their use in practice and intervention cases. The paper contends that in cases of intervention, where the overall aim is dose reduction, social and ethical factors are often alluded to when evaluating costs of an action. However, possible ethical or social benefits of intervention measures are seldom raised. On the other hand, when assessing a practice, wherein the net effect is an increase in radiation dose, one is more likely to find an appeal to ethical factors on the benefits side of the equation than with the costs. The paper concludes that all decisions concerning radiological protection should consider both positive and negative ethical aspects. (author)

  2. Thalamic Lesions: A Radiological Review

    Science.gov (United States)

    Renard, Dimitri; Campello, Chantal; Bouly, Stephane; Le Floch, Anne; Thouvenot, Eric; Waconge, Anne; Taieb, Guillaume

    2014-01-01

    Background. Thalamic lesions are seen in a multitude of disorders including vascular diseases, metabolic disorders, inflammatory diseases, trauma, tumours, and infections. In some diseases, thalamic involvement is typical and sometimes isolated, while in other diseases thalamic lesions are observed only occasionally (often in the presence of other typical extrathalamic lesions). Summary. In this review, we will mainly discuss the MRI characteristics of thalamic lesions. Identification of the origin of the thalamic lesion depends on the exact localisation inside the thalamus, the presence of extrathalamic lesions, the signal changes on different MRI sequences, the evolution of the radiological abnormalities over time, the history and clinical state of the patient, and other radiological and nonradiological examinations. PMID:25100900

  3. Thalamic Lesions: A Radiological Review

    Directory of Open Access Journals (Sweden)

    Dimitri Renard

    2014-01-01

    Full Text Available Background. Thalamic lesions are seen in a multitude of disorders including vascular diseases, metabolic disorders, inflammatory diseases, trauma, tumours, and infections. In some diseases, thalamic involvement is typical and sometimes isolated, while in other diseases thalamic lesions are observed only occasionally (often in the presence of other typical extrathalamic lesions. Summary. In this review, we will mainly discuss the MRI characteristics of thalamic lesions. Identification of the origin of the thalamic lesion depends on the exact localisation inside the thalamus, the presence of extrathalamic lesions, the signal changes on different MRI sequences, the evolution of the radiological abnormalities over time, the history and clinical state of the patient, and other radiological and nonradiological examinations.

  4. [Radiation protection in interventional radiology].

    Science.gov (United States)

    Adamus, R; Loose, R; Wucherer, M; Uder, M; Galster, M

    2016-03-01

    The application of ionizing radiation in medicine seems to be a safe procedure for patients as well as for occupational exposition to personnel. The developments in interventional radiology with fluoroscopy and dose-intensive interventions require intensified radiation protection. It is recommended that all available tools should be used for this purpose. Besides the options for instruments, x‑ray protection at the intervention table must be intensively practiced with lead aprons and mounted lead glass. A special focus on eye protection to prevent cataracts is also recommended. The development of cataracts might no longer be deterministic, as confirmed by new data; therefore, the International Commission on Radiological Protection (ICRP) has lowered the threshold dose value for eyes from 150 mSv/year to 20 mSv/year. Measurements show that the new values can be achieved by applying all X‑ray protection measures plus lead-containing eyeglasses.

  5. Inference and uncertainty in radiology.

    Science.gov (United States)

    Sistrom, Chris

    2006-05-01

    This paper seeks to enhance understanding of the philosophical underpinnings of our discipline and the resulting practical implications. Radiology reports exist in order to convey new knowledge about a patient's condition based on empiric observations from anatomic or functional images of the body. The route to explanation and prediction from empiric evidence is mostly through inference based on inductive (and sometimes abductive) arguments. The conclusions of inductive arguments are, by definition, contingent and provisional. Therefore, it is necessary to deal in some way with the uncertainty of inferential conclusions (i.e. interpretations) made in radiology reports. Two paradigms for managing uncertainty in natural sciences exist in dialectic tension with each other. These are the frequentist and Bayesian theories of probability. Tension between them is mirrored during routine interactions among radiologists and clinicians. I will describe these core issues and argue that they are quite relevant to routine image interpretation and reporting.

  6. Radiologic findings of neonatal sepsis

    International Nuclear Information System (INIS)

    Kim, Sam Soo; Han, Dae Hee; Choi, Guk Myeong; Jung, Hye Won; Yoon, Hye Kyung; Han, Bokyung Kim; Lee, Nam Yong

    1997-01-01

    To review the simple radiographic and sonographic findings in infants with neonatal sepsis. We retrospectively analyzed simple chest and abdominal radiographs, and brain sonograms in 36 newborn infants (preterm : term=23 :13). With neonatal sepsis diagnosed by blood culture and clinical manifestations. Pulmonary parenchymal infiltrate excluding respiratory distress syndrome and pulmonary edema or atelectasis was found in 22 infants (61%). Paralytic ileus, hepatosplenomegaly, and necrotizing enterocolitis were present in 18(50%), 9(25%), and 1(3%) infants, respectively, while skeletal changes suggesting osteomyelitis were found in three. Brain sonography was performed in 29 infants and in four, abnormalities were seen ; these comprised three germinal matrix hemorrhages and one intraparenchymal hemorrhage. In six patients(17%) radiologic examinations revealed no abnormality. In patients with neonatal sepsis, pulmonary infiltrates and paralytic ileus were common abnormalities. Although these were nonspecific, radiologic findings may be used to supplement clinical and laboratory findings in diagnosing neonatal sepsis and planning its treatment

  7. Radiologic findings of neonatal sepsis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Sam Soo; Han, Dae Hee; Choi, Guk Myeong; Jung, Hye Won [Seoul National Univ. College of Medicine, Seoul (Korea, Republic of); Yoon, Hye Kyung; Han, Bokyung Kim; Lee, Nam Yong [Sansung Medical Center, Seoul (Korea, Republic of)

    1997-06-01

    To review the simple radiographic and sonographic findings in infants with neonatal sepsis. We retrospectively analyzed simple chest and abdominal radiographs, and brain sonograms in 36 newborn infants (preterm : term=23 :13). With neonatal sepsis diagnosed by blood culture and clinical manifestations. Pulmonary parenchymal infiltrate excluding respiratory distress syndrome and pulmonary edema or atelectasis was found in 22 infants (61%). Paralytic ileus, hepatosplenomegaly, and necrotizing enterocolitis were present in 18(50%), 9(25%), and 1(3%) infants, respectively, while skeletal changes suggesting osteomyelitis were found in three. Brain sonography was performed in 29 infants and in four, abnormalities were seen ; these comprised three germinal matrix hemorrhages and one intraparenchymal hemorrhage. In six patients(17%) radiologic examinations revealed no abnormality. In patients with neonatal sepsis, pulmonary infiltrates and paralytic ileus were common abnormalities. Although these were nonspecific, radiologic findings may be used to supplement clinical and laboratory findings in diagnosing neonatal sepsis and planning its treatment.

  8. Benign chondroblastoma - malignant radiological appearances

    Energy Technology Data Exchange (ETDEWEB)

    Schulze, K.; Treugut, H.; Mueller, G.E.

    1980-04-01

    The very rare benign chondroblastoma occasionally invades soft tissues and may grow beyond the epiphysis into the metaphysis. In the present case such a tumour did not show the typical radiological appearances, but presented malignant features both on plain films and on the angiogram. The importance of biopsy of tumours which cannot be identified with certainty must be stressed before radical surgery is carried out.

  9. 324 Building Baseline Radiological Characterization

    International Nuclear Information System (INIS)

    Reeder, R.J.; Cooper, J.C.

    2010-01-01

    This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building. A total of 85 technical (100 square centimeter (cm 2 )) smears were collected from the Room 147 hoods, the Shielded Materials Facility (SMF), and the Radiochemical Engineering Cells (REC). Exposure rate readings (window open and window closed) were taken at a distance of 2.5 centimeters (cm) and 30 cm from the surface of each smear. Gross beta-gamma and alpha counts of each smear were also performed. The smear samples were analyzed by gamma energy analysis (GEA). Alpha energy analysis (AEA) and strontium-90 analysis were also performed on selected smears. GEA results for one or more samples reported the presence of manganese-54, cobalt-60, silver-108m antimony-125, cesium-134, cesium-137, europium-154, europium-155, and americium-241. AEA results reported the presence of plutonium-239/240, plutonium-238/ 241 Am, curium-243/244, curium-242, and americium-243. Tables 5 through 9 present a summary by location of the estimated maximum removable and total contamination levels in the Room 147 hoods, the SMF, and the REC. The smear sample survey data and laboratory analytical results are presented in tabular form by sample in Appendix A. The Appendix A tables combine survey data documented in radiological survey reports found in Appendix B and laboratory analytical results reported in the 324 Building Physical and Radiological Characterization Study (Berk, Hill, and Landsman 1998), supplemented by the laboratory analytical results found in Appendix C.

  10. Radiological security for industrial radiography

    International Nuclear Information System (INIS)

    Montoya G, Manuel.

    1985-04-01

    This report comprises the basic notions of nucleonics, simple calculations for point sources, X-rays, calculations for coatings, standards for radiation protection and industrial radiography instruments. The preceding sums up with the biological effects of ionizing radiation. This is a guide for people who wish to pass examinations, to get the license for radiological safety, for operators on gamma-graphic sources, which work in the country. It is a requirement for work with this kind of radioactive sources

  11. Subcutaneous granuloma annulare: radiologic appearance

    International Nuclear Information System (INIS)

    Kransdorf, M.J.; Murphey, M.D.; Temple, H.T.

    1998-01-01

    Objective. Granuloma annulare is an uncommon benign inflammatory dermatosis characterized by the formation of dermal papules with a tendency to form rings. There are several clinically distinct forms. The subcutaneous form is the most frequently encountered by radiologists, with the lesion presenting as a superficial mass. There are only a few scattered reports of the imaging appearance of this entity in the literature. We report the radiologic appearance of five cases of subcutaneous granuloma annulare. Design and patients. The radiologic images of five patients (three male, two female) with subcutaneous granuloma annulare were retrospectively studied. Mean patient age was 6.4 years (range, 2-13 years). The lesions occurred in the lower leg (two), foot, forearm, and hand. MR images were available for all lesions, gadolinium-enhanced imaging in three cases, radiographs in four, and bone scintigraphy in one. Results. Radiographs showed unmineralized nodular masses localized to the subcutaneous adipose tissue. The size range, in greatest dimension on imaging studies, was 1-4 cm. MR images show a mass with relatively decreased signal intensity on all pulse sequences, with variable but generally relatively well defined margins. There was extensive diffuse enhancement following gadolinium administration. Conclusion. The radiologic appearance of subcutaneous granuloma annulare is characteristic, typically demonstrating a nodular soft-tissue mass involving the subcutaneous adipose tissue. MR images show a mass with relatively decreased signal intensity on all pulse sequences and variable but generally well defined margins. There is extensive diffuse enhancement following gadolinium administration. Radiographs show a soft-tissue mass or soft-tissue swelling without evidence of bone involvement or mineralization. This radiologic appearance in a young individual is highly suggestive of subcutaneous granuloma annulare. (orig.)

  12. Standards of diagnostic radiological safety

    International Nuclear Information System (INIS)

    Yacovenco, A.; Ferreira, R.

    1996-01-01

    Brazil as well as many other countries are characterized for the access differentiated from the society to the products of the development. The lacking in specifications tolerance and mainly requirements of security and they of protection have induced to the inadequate utilization of the procedures technical and products in the area of radiology. We in this context are proposing a new mode of relationships between the diverse levels of intervention and responsibility

  13. Otologic radiology with clinical correlations

    Energy Technology Data Exchange (ETDEWEB)

    Ruenes, R.; De la Cruz, A.

    1986-01-01

    This manual covers developments in the radiologic diagnosis of otologic problems. To demonstrate the appearance of each disorder comprehensively, a large number of radiographs are included, many of them annotated to highlight both diagnostic signs and the subtle aspects of normal pathologic anatomy. Contents: X-ray and Imaging Techniques and Anatomy. Congenital Malformations. Middle and External Ear Infections. Otosclerosis and Otospongiosis. Temporal Bone Fractures. The Facial Nerve. Tumors of the Temporal Bone and Skull Base. Tumors of the Cerebellopontine Angle. Cochlear Implants.

  14. Radiologic diagnosis of neuroendocrine tumors

    International Nuclear Information System (INIS)

    Lunderquist, A.

    1989-01-01

    The radiologic work-up of a patient with a pancreatic endocrine tumor should follow a strict course. Ultrasonography as the first procedure should be followed by angiography, if possible. Negative ultrasonography should be followed by computed tomography (CT), which, whether positive or negative, is supplemented by angiography. Negative CT and angiography is followed by transhepatic venous sampling. In patients with suspected liver metastases from intestinal and pancreatic endocrine tumors, angiography may reveal more metastases than CT and ultrasonography. (orig.)

  15. The radiological residua of healed diabetic arthropathies

    International Nuclear Information System (INIS)

    Reinhardt, K.

    1981-01-01

    Diabetic arthropathy is a relatively rare manifestation of neuropathic disease, occurring in fewer than 5% of cases. Abnormalities of this type are confined largely to the small joints of the feet, although the larger joints of the lower limbs and the spine occasionally are affected. Some lesions, particularly in the feet, repair spontaneously, leaving radiological residua sufficiently characteristic to prompt suspicion of an unrecognised diabetic state. These include deformity of the head of the second metatarsal (akin to a Freiberg lesion), shortening of the great toe, painless deforming arthrosis of the knee, and ankylosis of interphalangeal joints. In the presence of these signs the patient should be interrogated concerning diabetes and blood sugar estimates, with provocation if necessary, obtained. Should such a diagnosis be sustained, appropriate protective measures may be undertaken to avoid a relapse of the arthropathy. (orig.)

  16. Radiological residua of healed diabetic arthropathies

    Energy Technology Data Exchange (ETDEWEB)

    Reinhardt, K.

    1981-12-01

    Diabetic arthropathy is a relatively rare manifestation of neuropathic disease, occurring in fewer than 5% of cases. Abnormalities of this type are confined largely to the small joints of the feet, although the larger joints of the lower limbs and the spine occasionally are affected. Some lesions, particularly in the feet, repair spontaneously, leaving radiological residua sufficiently characteristic to prompt suspicion of an unrecognised diabetic state. These include deformity of the head of the second metatarsal (akin to a Freiberg lesion), shortening of the great toe, painless deforming arthrosis of the knee, and ankylosis of interphalangeal joints. In the presence of these signs the patient should be interrogated concerning diabetes and blood sugar estimates, with provocation if necessary, obtained. Should such a diagnosis be sustained, appropriate protective measures may be undertaken to avoid a relapse of the arthropathy.

  17. Tinnitus and its radiological diagnosis and therpy

    Energy Technology Data Exchange (ETDEWEB)

    Nadjmi, M.; Hofmann, E.; Ratzka, M.; Schuknecht, B.

    1987-03-01

    Tinnitus is a familiar symptom in diseases of the central nervous system. Its aetiology being of a varied nature, the type of tinnitus is a pointer to the pathoanatomic findings that are responsible for the disease. The causes of tinnitus are often found in the borderline areas between various neighbouring disciplines, such as otology, neurology and neurosurgery, whereas the final identification of the real causes is mainly within the scope of radiological diagnosis, in which computed tomography and superselective angiography play an essential role. In addition to arteriovenous fistulas near the petrous bone and glomus tumours, which are well known, there are a few other aetiologies of pulse-synchronous tinnitus that are being discussed in this paper. In recent years there has been substantial therapeutical progress owing to the introduction of new techniques and the development of improved materials for embolisation in international neuroradiology. Their application is discussed in connection with various patient groups.

  18. Conventional radiology: fixed installations in medical environment

    International Nuclear Information System (INIS)

    2010-01-01

    This document presents the different procedures, the different types of specific hazards, the analysis of risks, their assessment and the preventive methods with regard to radioprotection in the case of fixed conventional radiology equipment in medical environment. It indicates and describes the concerned personnel, the course of procedures, the hazards, the identification of the risk associated with ionizing radiation, the risk assessment and the determination of exposure levels (definition of regulated areas, personnel categories), the strategy aimed at controlling the risk (risk reduction, technical measures concerning the installation or the personnel, teaching and information, prevention, incident), the different measures of medical monitoring, the assessment of risk control, and other risks. An appendix proposes an example of workstation assessment

  19. The radiology of prosthetic heart valves

    International Nuclear Information System (INIS)

    Steiner, R.M.; Flicker, S.

    1985-01-01

    The development of prosthetic heart valves in the late 1950s ushered in a new era in the treatment of heart disease. The radiologist has an important role to play preoperatively in the diagnosis of valvular heart disease. Radiology is valuable in identification of the implanted prosthetic valve and recognition of complications associated with valve implantation. Radiologists must be familiar with the imaging techniques best suited to evaluate the function of the valve prosthesis in question. In this chapter the authors discuss the radiographic approach to the evaluation of the status of patients for valve replacement and the imaging problems peculiar to the types of valves in current use. The relative value of plain-film radiography, fluoroscopy, videorecording and cinerecording, and aortography is addressed, as well as the potential value of magnetic resonance imaging and subsecond dynamic computed tomography

  20. Protecting National Critical Infrastructure against Radiological Threat

    International Nuclear Information System (INIS)

    Yaar, I.; Halevy, I.; Berenstein, Z.; Sharon, A.

    2014-01-01

    National Critical Infrastructure (NCI) such as transportation, water, energy etc., are essential elements in a developed country's economy. As learned after the 9/11 attackxx, a terror attack on these complex system may cause thousands of casualties and significant economic damage. The attack can be a conventional one; like the train bombing in Spainxxi or the bus bombing in Londonxxii, or a non-conventional one; like the Sarin attack on the underground train in Tokyo, Japanxxiii. A radiological attack on a NCI is also feasiblexxiv. This type of attack must be taken into consideration due to the vulnerability of ani infrastructure to such an attack, and the severe economic outcome of itxxv. The radioactive materials that might be used by terrorists were recently identified and categorized in one of the IAEA Nuclear Security Series publicationxxvi,xxvii. The most common and therefore reachable radio nuclides are the gamma emitters 60Co, 137Cs and 192Ir, the beta emitter 90Sr and the alpha emitters 241Pu, 238Pu and 241Am. A radiological event can be any of two principle scenarios. In the first scenario, a radiological dispersion device (RDD) or ôdirtyö bomb is used. This device consists of a radiation source which is detonated using conventional or improvised explosivesxxviii. Most of the casualties in this event will be from the explosion blast wave. However, some people might become contaminated with different levels of radiationxxix, some might need to go through some type of medical screening process and the costs of the total actions might be significantxxx. The second scenario involves a silent dispersion of radioactive material in a public site. In this event, there are no immediate known casualties, and the fact that people were exposed to radioactive material will be discovered only in the uncommon event when symptoms of radiation sickness will be identified due to exposure to high radiation dosexxxi, or if the radioactive material is discovered by a first

  1. Telemetry of Aerial Radiological Measurements

    International Nuclear Information System (INIS)

    Clark, H. W. Jr.

    2002-01-01

    Telemetry has been added to National Nuclear Security Administration's (NNSA's) Aerial Measuring System (AMS) Incident Response aircraft to accelerate availability of aerial radiological mapping data. Rapid aerial radiological mapping is promptly performed by AMS Incident Response aircraft in the event of a major radiological dispersal. The AMS airplane flies the entire potentially affected area, plus a generous margin, to provide a quick look at the extent and severity of the event. The primary result of the AMS Incident Response over flight is a map of estimated exposure rate on the ground along the flight path. Formerly, it was necessary to wait for the airplane to land before the map could be seen. Now, while the flight is still in progress, data are relayed via satellite directly from the aircraft to an operations center, where they are displayed and disseminated. This permits more timely utilization of results by decision makers and redirection of the mission to optimize its value. The current telemetry capability can cover all of North America. Extension to a global capability is under consideration

  2. Radiological protection and the environment

    International Nuclear Information System (INIS)

    Brownless, G.

    2007-01-01

    The radiological protection world is roughly divided into two camps when it comes to the issue of environmental protection: those who believe that nothing more need be done in terms of radiological protection of the environment and those who do. Yet both camps can more or less agree that the environment is well-protected, so why all the debate? The key approach to protecting the environment is a trade-off, balancing environmental (and human) harm against the benefits of an activity. Depending on where the balance point is, a certain level of spending to protect humans and the environment would be expected, and in some cases an activity might be banned. This paper focusses on harm to non-human biota and describes the developments and issues in this area of radiological protection. There are essentially two challenges associated with protection of non-human biota: the level of protection that should be given and the availability of tools to assess harm. Both aspects are reviewed

  3. Radiological safety and risk assessment

    International Nuclear Information System (INIS)

    Hunter, P.H.; Barg, D.C.; Baird, R.D.; Card, D.H.; de Souza, F.; Elder, J.; Felthauser, K.; Jensen, C.; Winkler, V.

    1982-02-01

    A brief radiological safety and risk assessment of a nuclear power generation center with an adjacent on-site waste disposal facility at a specific site in the State of Utah is presented. The assessment was conducted to assist in determining the feasibility and practicality of developing a nuclear energy center (NEC) in Utah consisting of nine 1250 MWe nuclear pressurized water reactor (PWR) electrical generating units arranged in 3 clusters of 3 units each known as triads. The site selected for this conceptual study is in the Horse Bench area about 15 miles directly south of the town of Green River, Utah. The radiological issues included direct radiation exposures to on-site workers and the off-site population, release of radioactive material, and effects of these releases for both normal operations and accidental occurrences. The basic finding of this study is that the concept of an NEC in the Green River area, specifically at the Horse Bench site, is radiologically feasible

  4. Radiology uses of the Internet.

    Science.gov (United States)

    Krug, H; Cheng, D

    1995-01-01

    The Internet promises to be an essential resource for radiology administrators. In addition to offering remarkable access to colleagues all over the world, the Internet offers specialized information resources for radiology, many of which are described in this article. The Internet is many networks that communicate with each other and whose general purpose is to share information. Although there are several consortium organizations that support and regulate it, no single body or organization "owns" the Internet. Many employees and students at large teaching centers already have access to the Internet through their institution's connection. Individuals and small institutions can contract with independent service providers for Internet access. Internet functions covered in this article include: e-mail, listservs, newsgroups, file transfer protocols, Gopher, and the World Wide Web. The rapid pace of information exchange is making the world of radiology smaller and more intimate. Communication and knowledge are becoming so accessible that individuals are privy to the most minute happenings in the industry. Sharing information on the Internet will benefit not only individual users and the industry, but also patients.

  5. Radiological manifestations of pulmonary tuberculosis

    Energy Technology Data Exchange (ETDEWEB)

    Andreu, J. E-mail: andreuj@hg.vhebron.es; Caceres, J.; Pallisa, E.; Martinez-Rodriguez, M

    2004-08-01

    Pulmonary tuberculosis (TB) is a common worldwide lung infection. The radiological features show considerable variation, but in most cases they are characteristic enough to suggest the diagnosis. Classically, tuberculosis is divided into primary, common in childhood, and postprimary, usually presenting in adults. The most characteristic radiological feature in primary tuberculosis is lymphadenopathy. On enhanced CT, hilar and mediastinal nodes with a central hypodense area suggest the diagnosis. Cavitation is the hallmark of postprimary tuberculosis and appears in around half of patients. Patchy, poorly defined consolidation in the apical and posterior segments of the upper lobes, and in the superior segment of the lower lobe is also commonly observed. Several complications are associated with tuberculous infection, such as hematogenous dissemination (miliary tuberculosis) or extension to the pleura, resulting in pleural effusion. Late complications of tuberculosis comprise a heterogeneous group of processes including tuberculoma, bronchial stenosis bronchiectasis, broncholithiasis, aspergilloma, bronchoesophageal fistula and fibrosing mediastinitis. Radiology provides essential information for the management and follow up of these patients and is extremely valuable for monitoring complications.

  6. Radiological protection of patients in diagnostic and interventional radiology, nuclear medicine and radiotherapy. Contributed papers

    International Nuclear Information System (INIS)

    2001-01-01

    An International Conference on the Radiological Protection of Patients in Diagnostic and Interventional Radiology, Nuclear Medicine and Radiotherapy organized by the International Atomic Energy Agency and co-sponsored by the European Commission, the Pan American Health Organization and the World Health Organization was held in Malaga, Spain, from 26 to 30 March 2001. The Government of Spain hosted this Conference through the Ministerio de Sanidad y Consumo, the Consejo de Seguridad Nuclear, the Junta de Andalucia, the Universidad de Malaga and the Grupo de Investigacion en Proteccion Radiologica de la Universidad de Malaga (PRUMA). The Conference was organized in co-operation with the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), the International Commission on Radiological Protection (ICRP) and the following professional societies: International Organization of Medical Physicists (IOMP), International Radiation Protection Association (IRPA), International Society of Radiation Oncology (ISRO), International Society of Radiology (ISR), International Society of Radiographers and Radiological Technologists (ISRRT) and World Federation of Nuclear Medicine and Biology (WFNMB). This publication contains contributed papers submitted to the Conference Programme Committee. The papers are in one of the two working languages of this Conference, English and Spanish. The topics covered by the Conference are as follows: Radiological protection of patients in general diagnostic radiology (radiography), Radiological protection of patients in general diagnostic radiology (fluoroscopy), Radiological protection issues in specific uses of diagnostic radiology, such as mammography and computed tomography (with special consideration of the impact of digital techniques), Radiological protection in interventional radiology, including fluoroscopy not carried out by radiologists, Radiological protection of patients in nuclear medicine, Developing and

  7. Training in radiological protection for nuclear programmes

    International Nuclear Information System (INIS)

    1975-01-01

    Many Member States are developing or already have developed their own national training programmes. The IAEA is actively involved in promoting training in radiological protection for nuclear programmes. The various types of training are fully discussed, with suggested curricula. An earlier report was published as Technical Reports Series No.31 in 1964. In 1973, new and additional information was received from Member States which is reflected in the present report. Training programmes are classified, according to those requiring training: specialists; persons whose work is closely related to radiological protection (administrators, public health officers and industrial health personnel, safety inspectors and engineers in nuclear installations, public service personnel); persons working with radiation; and the general public. Forms, scope and duration of training are discussed. Different types of training programmes are currently required for training of medical doctors (those providing medical surveillance for radiation workers and others dealing with public health aspects of radiation hazards), for technical supervisors, radiologists, and qualified workers in nuclear medicine, technological staff, administrators, persons working with radiation, and public service personnel. Standard curricula and desirable experiments and exercises are discussed. The organization of training together with the facilities, equipment and teaching staff required are considered, as is follow-up training. Annexes 1 to 4 give examples of training curricula and training courses available in various countries, a suggested syllabus for training of technical supervisors, and a bibliography consisting of 210 references dealing with general topics, nuclear radiation physics, radiochemistry and radiation chemistry, radiation biology and biophysics, dosimetry and health physics and radiation protection, medical aspects and toxicology, and environmental aspects

  8. The radiological accident in Yanango

    International Nuclear Information System (INIS)

    2000-01-01

    The use of nuclear technologies has fostered new, more effective and efficient medical procedures and has substantially improved diagnostic and therapeutic capabilities. However, in order that the benefits of the use of ionizing radiation outweigh the potential hazards posed by this medium, it is important that radiation protection and safety standards be established to govern every aspect of the application of ionizing radiation. Adherence to these standards needs to be maintained through effective regulatory control, safe operational procedures and a safety culture that is shared by all. Occasionally, established safety procedures are violated and serious radiological consequences ensue. The radiological accident described in this report, which took place in Lilo, Georgia, was a result of such an infraction. Sealed radiation sources had been abandoned by a previous owner at a site without following established regulatory safety procedures, for example by transferring the sources to the new owner or treating them as spent material and conditioning them as waste. As a consequence, 11 individuals at the site were exposed for a long period of time to high doses of radiation which resulted inter alia in severe radiation induced skin injuries. Although at the time of the accident Georgia was not an IAEA Member State and was not a signatory of the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency, the IAEA still provided assistance to the Government of Georgia in assessing the radiological situation, while the World Health Organization (WHO) assisted in alleviating the medical consequences of the accident. The two organizations co-operated closely from the beginning, following the request for assistance by the Georgian Government. The IAEA conducted the radiological assessment and was responsible for preparing the report. The WHO and its collaborating centres within the Radiation Emergency Medical Preparedness and Assistance Network

  9. A Comprehensive Analysis of Authorship in Radiology Journals.

    Science.gov (United States)

    Dang, Wilfred; McInnes, Matthew D F; Kielar, Ania Z; Hong, Jiho

    2015-01-01

    The purpose of our study was to investigate authorship trends in radiology journals, and whether International Committee of Medical Journal Editors (ICMJE) recommendations have had an impact on these trends. A secondary objective was to explore other variables associated with authorship trends. A retrospective, bibliometric analysis of 49 clinical radiology journals published from 1946-2013 was conducted. The following data was exported from MEDLINE (1946 to May 2014) for each article: authors' full name, year of publication, primary author institution information, language of publication and publication type. Microsoft Excel Visual Basics for Applications scripts were programmed to categorize extracted data. Statistical analysis was performed to determine the overall mean number of authors per article over time, impact of ICMJE guidelines, authorship frequency per journal, country of origin, article type and language of publication. 216,271 articles from 1946-2013 were included. A univariate analysis of the mean authorship frequency per year of all articles yielded a linear relationship between time and authorship frequency. The mean number of authors per article in 1946 (1.42) was found to have increased consistently by 0.07 authors/ article per year (R² = 0.9728, Pjournals, country of origin, language of publication and article type. Overall authorship for 49 radiology journals across 68 years has increased markedly with no demonstrated impact from ICMJE guidelines. A higher number of authors per article was seen in articles from: higher impact journals, European and Asian countries, original research type, and those journals who explicitly endorse the ICMJE guidelines.

  10. A survey of radiology reporting practices in veterinary teaching hospitals

    International Nuclear Information System (INIS)

    Adams, W.M.

    1998-01-01

    Radiologists from 28 veterinary schools and one private teaching hospital responded to a survey questionnaire focused on diagnostic image reporting. Radiologists at 26 hospitals generated a hard copy report on essentially all imaging studies performed. At 25 hospitals, radiologists dictated and transcriptionists typed all or most reports; radiologists at two institutions typed all or some of their reports. At five hospitals, preliminary and/or final handwritten reports were generated. The range of reports generated per day was <10 to 40 per radiologist on duty. Seven respondents generated reports as films came from the processor and another 12 routinely generated reports the day the studies were completed. Clinician access to a processed report averaged 2 to 4 days after study was completed (reported range: several hours to 7 or more days). Fifteen responding radiologists personally mounted films from storage jackets for a majority of their reporting. Fourteen respondents generated reports from films mounted on motorized or stationary viewers. Nineteen respondents generated reports in a busy viewing area where they were frequently interrupted. Radiologists' impression of clinician and resident satisfaction regarding availability of radiology reports was that they were satisfied or very satisfied at 15 of the 29 hospitals. Five respondents reported that clinicians and residents were not concerned about availability of processed radiology reports. Thirteen radiologists were planning to change their reporting method within the next 2 years. The change most frequently sought (12 respondents) was to decrease turn-around time of reports. Ten radiologists indicated an interest in trying a voice recognition dictation system. The most common reasons given for not planning any changes in radiology reporting in the next 2 years were: limited number of radiologists (8) and 1 ''satisfied as is'' (7). Turn-around of radiology reports at these veterinary institutions averaged 2

  11. Learning from diagnostic errors: A good way to improve education in radiology

    Energy Technology Data Exchange (ETDEWEB)

    Pinto, Antonio, E-mail: antopin1968@libero.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Acampora, Ciro, E-mail: itrasente@libero.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Pinto, Fabio, E-mail: fpinto1966@libero.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Kourdioukova, Elena, E-mail: Elena.Kourdioukova@UGent.be [Department of Radiology, Ghent University Hospital (UZG), MR/-1K12, De Pintelaan 185, B-9000 Ghent (Belgium); Romano, Luigia, E-mail: luigia.romano@fastwebnet.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Verstraete, Koenraad, E-mail: Koenraad.Verstraete@UGent.be [Department of Radiology, Ghent University Hospital (UZG), MR/-1K12, De Pintelaan 185, B-9000 Ghent (Belgium)

    2011-06-15

    Purpose: To evaluate the causes and the main categories of diagnostic errors in radiology as a method for improving education in radiology. Material and methods: A Medline search was performed using PubMed (National Library of Medicine, Bethesda, MD) for original research publications discussing errors in diagnosis with specific reference to radiology. The search strategy employed different combinations of the following terms: (1) diagnostic radiology, (2) radiological error and (3) medical negligence. This review was limited to human studies and to English-language literature. Two authors reviewed all the titles and subsequently the abstracts of 491 articles that appeared pertinent. Additional articles were identified by reviewing the reference lists of relevant papers. Finally, the full text of 75 selected articles was reviewed. Results: Several studies show that the etiology of radiological error is multi-factorial. The main category of claims against radiologists includes the misdiagnoses. Radiologic 'misses' typically are one of two types: either missed fractures or missed diagnosis of cancer. The most commonly missed fractures include those in the femur, the navicular bone, and the cervical spine. The second type of 'miss' is failure to diagnose cancer. Lack of appreciation of lung nodules on chest radiographs and breast lesions on mammograms are the predominant problems. Conclusion: Diagnostic errors should be considered not as signs of failure, but as learning opportunities.

  12. Learning from diagnostic errors: A good way to improve education in radiology

    International Nuclear Information System (INIS)

    Pinto, Antonio; Acampora, Ciro; Pinto, Fabio; Kourdioukova, Elena; Romano, Luigia; Verstraete, Koenraad

    2011-01-01

    Purpose: To evaluate the causes and the main categories of diagnostic errors in radiology as a method for improving education in radiology. Material and methods: A Medline search was performed using PubMed (National Library of Medicine, Bethesda, MD) for original research publications discussing errors in diagnosis with specific reference to radiology. The search strategy employed different combinations of the following terms: (1) diagnostic radiology, (2) radiological error and (3) medical negligence. This review was limited to human studies and to English-language literature. Two authors reviewed all the titles and subsequently the abstracts of 491 articles that appeared pertinent. Additional articles were identified by reviewing the reference lists of relevant papers. Finally, the full text of 75 selected articles was reviewed. Results: Several studies show that the etiology of radiological error is multi-factorial. The main category of claims against radiologists includes the misdiagnoses. Radiologic 'misses' typically are one of two types: either missed fractures or missed diagnosis of cancer. The most commonly missed fractures include those in the femur, the navicular bone, and the cervical spine. The second type of 'miss' is failure to diagnose cancer. Lack of appreciation of lung nodules on chest radiographs and breast lesions on mammograms are the predominant problems. Conclusion: Diagnostic errors should be considered not as signs of failure, but as learning opportunities.

  13. Radiological Evaluation Standards in the Radiology Department of Shahid Beheshti Hospital (RAH) YASUJ Based on Radiology standards in 92

    OpenAIRE

    A َKalantari; SAM Khosravani

    2014-01-01

    Background & aim: Radiology personnel’s working in terms of performance and safety is one of the most important functions in order to increase the quality and quantity. This study aimed to evaluate the radiological standards in Shahid Beheshti Hospital of Yasuj, Iran, in 2013. Methods: The present cross-sectional study was based on a 118 randomly selected graphs and the ranking list, with full knowledge of the standards in radiology was performed two times. Data were analyzed using descri...

  14. Cost accounting of radiological examinations. Cost analysis of radiological examinations of intermediate referral hospitals and general practice.

    Science.gov (United States)

    Lääperi, A L

    1996-01-01

    The purpose of this study was to analyse the cost structure of radiological procedures in the intermediary referral hospitals and general practice and to develop a cost accounting system for radiological examinations that takes into consideration all relevant cost factors and is suitable for management of radiology departments and regional planning of radiological resources. The material comprised 174,560 basic radiological examinations performed in 1991 at 5 intermediate referral hospitals and 13 public health centres in the Pirkanmaa Hospital District in Finland. All radiological departments in the hospitals were managed by a specialist in radiology. The radiology departments at the public health care centres operated on a self-referral basis by general practitioners. The data were extracted from examination lists, inventories and balance sheets; parts of the data were estimated or calculated. The radiological examinations were compiled according to the type of examination and equipment used: conventional, contrast medium, ultrasound, mammography and roentgen examinations with mobile equipment. The majority of the examinations (87%) comprised conventional radiography. For cost analysis the cost items were grouped into 5 cost factors: personnel, equipment, material, real estate and administration costs. The depreciation time used was 10 years for roentgen equipment, 5 years for ultrasound equipment and 5 to 10 years for other capital goods. An annual interest rate of 10% was applied. Standard average values based on a sample at 2 hospitals were used for the examination-specific radiologist time, radiographer time and material costs. Four cost accounting versions with varying allocation of the major cost items were designed. Two-way analysis of variance of the effect of different allocation methods on the costs and cost structure of the examination groups was performed. On the basis of the cost analysis a cost accounting program containing both monetary and

  15. Application of the case method in medical student radiology education.

    Science.gov (United States)

    Chew, Felix S; Ochoa, E Ricardo; Relyea-Chew, Annemarie

    2005-06-01

    Our goal is to design, implement, and evaluate a rich educational activity to engage medical students in learning the importance of providing clinical histories when ordering radiological examinations. We adapted the format of the case method commonly used in business schools. In the setting of a 1-week required radiology course offered during the third year of medical school, we created an unknown case assignment consisting of two chest radiographs and a concise history for three- to four-person study teams. Unknown to students, each team received the same images, but different patient histories. After turning in their written analyses, students had a classroom opportunity to discuss their conclusions. A written evaluation of the entire experience using both Likert items and unstructured response items was conducted at the end of each session. The evaluation was conducted during a 17-month period, and 141 evaluations were received from students. The response rate was 100%. Most teams met several times and worked on the assignment for 2 or 3 hours. Students agreed that the learning experience was worthwhile (95%), content was appropriate (93%), and the activity should be continued for subsequent classes (94%). Unstructured responses indicated that students learned the importance of clinical histories in the interpretation of radiological studies. An educational activity based on the case method was well received by students and met its educational objectives. Activities of this type have potential for widespread application in radiology education.

  16. Radiation Protection Knowledge, Attitude, and Practice (KAP in Interventional Radiology

    Directory of Open Access Journals (Sweden)

    Fatemeh Shabani

    2018-03-01

    Full Text Available Objectives: Due to increasing cardiac disease and its mortality rate, the frequency of cardiac imaging has grown and, as a result, interventional cardiologists potentially receive high radiation doses in cardiac examinations. This study aimed to assess the knowledge, attitude, and practice (KAP level of radiation protection (RP among interventional radiology staff in Iranian health care centers across the country. Methods: We used a validated questionnaire survey consisting of 30 multiple-choice questions to perform a cross-sectional study. Participants were healthcare personnel working professionally with radiation at different levels (i.e., secretary, radiology technologists, nurse, and physician. The questionnaire was divided into three sections to assess KAP regarding RP. Results: Significant differences exist in RP KAP mean scores based on educational age (p 0.050. We found a significant difference between RP KAP mean scores and different regions (p < 0.050. Conclusions: Educational and practice age, sex, type of hospital, and geographical region affect he KAP of interventional radiology staff regarding RP. Since many of the subjective radiation harms for both medical team and patients, this can be easily controlled and prevented; a checkup for personnel of interventional radiology departments, considering samples from different parts of the country with different levels of education, continuous training, and practical courses may help map the status of KAP. The results of this study may also help authorized health physics officers design strategic plans to enhance the quality of such services in radiation departments.

  17. Chest radiological findings in pakistani cement mill workers

    International Nuclear Information System (INIS)

    Meo, Sultan A.

    2003-01-01

    Chest radiological findings in Pakistani cement mill workers Even in the 21st century, in developing countries millions of people work daily in dusty environments. They are exposed to different types of health hazards namely, fumes, gases and dust, which are risk factors for developing occupational diseases. Therefore, the aim of this study was to perform chest radiology to determine the occupational hazards of cement dust on the lungs of cement mill workers. This study was carried out in the Department of Physiology, Faculty of Health and Medical Sciences, Hamdard University Karachi, Pakistan, during the period June to August 2000. In this study 50, apparently healthy volunteer male cement mill workers were randomly selected with an average of 13 years exposure with age ranging from 20-60 years. They were matched with 50, healthy male control subjects in terms of age, height, weight and socioeconomic status. Both groups met with exclusion criteria as per standard. Radiology was performed by Trophy radiology. Results: The present study demonstrated 12% of cases with interstitial lung disease and 2% of cases with pleural thickening and chronic bronchitis in cement mill workers. Conclusion: Exposure to cement dust causes interstitial lung disease, pleural thickening and chronic bronchitis in cement mill workers. (author)

  18. Tumour forms and microcalcifications as radiological diagnostic criteria of mammography

    International Nuclear Information System (INIS)

    Cullmann, H.

    1979-01-01

    289 cases of breast carcinoma which had occurred over a period of 7 years were examined at mammograms and histological preparations. Especially in view were the frequency of radiologically visible criteria of malignancy with special stress laid on microcalcifications, typical radiological forms of imaging the various sorts of carcinoma, and a statement on the definiteness of diagnoses made with mammography. The exactness of diagnoses of breast cancer established by means of mammography can be states as 96.9% in 289 cases of carcinoma. 81.7% were assessed as definitely malignant and 15.2% were suspected to be malignant. In these cases, surgery confirmed the teutative diagnosis. 3.1% of the cases must be seen as mammographic false diagnoses in the sense of ''false negative''. These percentages are in correspondence with those obtained by other examiners. The radiologically visible growth form of breast cancer often typically reflect the histomorphological sort of the cancer. In 174 (67.1%) of 259 cases, the histological type of carcinoma could be recognized from the radiologically visible growth form. (orig./MG) [de

  19. Assessment of radiological properties of wastes from urban decontamination procedures

    International Nuclear Information System (INIS)

    Da Silva, D.N.G.; Guimarães, J.R.D.; Rochedo, E.R.R.; Rochedo, P.R.R.; De Luca, C.

    2015-01-01

    One important activity associated to urban areas contaminated from accidental releases to the atmosphere of nuclear power plants is the management of radioactive wastes generated from decontamination procedures. This include the collection, conditioning, packing, transport and temporary/final disposition. The final destination is defined usually through a political decision. Thus, transport of packed radioactive wastes shall depend on decisions not just under the scope of radiological protection issues. However, the simulations performed to assess doses for the public and decontamination workers allows the estimate of radiological aspects related to the waste generated and these characteristics may be included in a multi-criteria decision tool aiming to support, under the radiological protection point of view, the decision-making process on post-emergency procedures. Important information to decision makers are the type, amount and activity concentration of wastes. This work describes the procedures to be included in the urban area model to account for the assessment of qualitative and quantitative description of wastes. The results will allow the classification of different procedures according to predefined criteria that shall then feed the multi-criteria assessment tool, currently under development, considering basic radiological protection aspects of wastes generated by the different available cleanup procedures on typical tropical urban environments. (authors)

  20. Massive radiological releases profoundly differ from controlled releases

    International Nuclear Information System (INIS)

    Pascucci-Cahen, Ludivine; Patrick, Momal

    2012-11-01

    Preparing for a nuclear accident implies understanding potential consequences. While many specialized experts have been working on different particular aspects, surprisingly little effort has been dedicated to establishing the big picture and providing a global and balanced image of all major consequences. IRSN has been working on the cost of nuclear accidents, an exercise which must strive to be as comprehensive as possible since any omission obviously underestimates the cost. It therefore provides (ideally) an estimate of all cost components, thus revealing the structure of accident costs, and hence sketching a global picture. On a French PWR, it appears that controlled releases would cause an 'economical' accident with limited radiological consequences when compared to other costs; in contrast, massive releases would trigger a major crisis with strong radiological consequences. The two types of crises would confront managers with different types of challenges. (authors)

  1. Radiological characterization of ceramic tiles made in the community of Valencia and its use as a construction material

    International Nuclear Information System (INIS)

    Ortiz, J.; Ballesteros, L.; Gallardo, S.; Martorell, S.

    2014-01-01

    In this presentation, radiological characterization is done by gamma spectrometry various types of ceramic tiles and use as building material in relation to the potential radiological risk deriving from this use are discussed. The discussion includes both the rules of the countries being targeted as the new basic security policy (BSS) issued by the EU 2014. (Author)

  2. Integrating IT into the radiology environment.

    Science.gov (United States)

    McDonald, Andrea

    2002-01-01

    Rather than perpetuating the struggle, "who controls the PACS, Radiology or Information Technology (IT)," Community Hospital of the Monterey Peninsula (CHOMP) took the approach of incorporating IT support within the Radiology Department. CHOMP faced the challenge of staffing Radiology computer systems and networks by using a two-pronged approach; promoting and training clinical staff in IT functions and transferring an experienced IT person into the Radiology Department. Roles and responsibilities are divided. CHOMP's IT Department supports the Radiology Department's desktop devices, PCs, printers, and standard peripherals; while the department's DICOM print and archive network, specialized hardware (e.g., Merge DICOM interface computers), and applications are supported by the Radiology Department. The IT Department provides operating system support for multi-user VMS, Unix, and NT-based systems, e.g. Sun Solaris for the DICOM archive, and Windows NT for Mitra PACS Broker, the HL7/DICOM interface engine. IT also supports network communications, i.e., network electronics (routers, switches, etc.), TCP/IP communications, and network traffic analysis; and OS operations support for major Radiology systems, e.g. back-ups and off-site tape storage. Radiology staff provides applications support and troubleshooting, including analyst functions for RIS; and are the first point of contact with the Radiology systems vendors, e.g., GE Medical, or Siemens. The Radiology Department's senior IT person, the Clinical Technology Coordinator, transferred from CHOMP's IT Department after 7 years in that department. She performs analysis and design associated with Radiology's computer systems, coordinates development of the department's strategic plan, evaluates vendor proposals, and assists the department with product and application selection. Her IT experience and growing knowledge of Radiology's clinical tasks enhances communications between the Radiology and IT departments. Formal

  3. Unpartitioned versus incompletely partitioned cochleae: radiologic differentiation.

    Science.gov (United States)

    Sennaroglu, Levent; Saatci, Isil

    2004-07-01

    In the process of evaluating our patients, we realized that the term "Mondini deformity" was being used to describe two different types of incomplete partition of the cochlea. THE First one consisted of an unpartitioned, completely empty cochlea where the interscalar septum and entire modiolus were absent, giving the cochlea a cystic appearance; a grossly dilated vestibule accompanied this lesion. The second pathology fitted the classic description of Mondini deformity, consisting of a normal basal turn and cystic apex (where the middle and apical turns form a cystic cavity), dilated vestibule, and enlarged vestibular aqueduct. This study was planned to investigate the differences between the two types of incomplete partition for inner ear malformations based on radiologic features. We conducted a retrospective review of temporal bone computed tomography (CT) findings. The subjects were 18 patients with profound bilateral sensorineural hearing loss who had high-resolution CT with contiguous 1-mm thick images obtained through the petrous bone in axial sections. The CT results were reviewed as incomplete partition type I (IP-I) and type II (IP-II). Incomplete partition type I (unpartitioned cochlea, cystic cochleovestibular malformation) is defined as a malformation in which the cochlea lacks the entire modiolus and interscalar septa, resulting in a cystic appearance and there is an accompanying grossly dilated vestibule. In incomplete partition type II (incompletely partitioned cochlea, the Mondini deformity), there is a cochlea comprised of a normal basal turn and cystic apex accompanied by a minimally dilated vestibule and enlarged vestibular aqueduct (VA). Measurements involving the cochlea, vestibule, vestibular aqueduct, and internal auditory canal (IAC) were done to determine the characteristic features of these pathologies. : Thirteen ears had IP-I and 18 ears had IP-II anomaly. The size of the cochleae in both anomalies showed no significant difference from

  4. Plates, Screws, or Combination? Radiologic Outcomes After Lisfranc Fracture Dislocation.

    Science.gov (United States)

    Lau, Simon; Howells, Nicholas; Millar, Michael; De Villiers, Daniel; Joseph, Samuel; Oppy, Andrew

    2016-01-01

    Traditionally, Lisfranc fracture dislocations have been treated with transarticular screw fixation. A more recent development has been the use of dorsal bridging plates. The aim of the present study was to compare the radiologic outcomes for these 2 methods. Currently, no data comparing the outcomes of these 2 treatment options have been reported. A total of 62 patients were treated for Lisfranc fracture dislocations during a 6-year period. The inclusion criteria included ≥6 months of follow-up data available. Each fracture was classified using the Hardcastle classification system. Each fracture was also allocated into 1 of 4 groups: transarticular screw fixation, dorsal plating, a combination of plate and screw fixation, and nonoperative management. The outcome measures included the Kellgren-Lawrence grading of osteoarthritis and the Wilppula classification of anatomic reduction. In terms of results, radiologic osteoarthritis is not associated with the type of injury according to the Hardcastle classification nor with having an open or closed fracture. The Hardcastle classification is not associated with the type of fixation used. Fractures fixed with a combination of plates and screws had a 3.01 (95% confidence interval 1.036 to 8.74) increased risk of having stage 3 or 4 radiologic osteoarthritis compared with being fixed solely with bridging plates (p = .009). Multivariate analysis revealed that this increased risk of osteoarthritis was dependent on the quality of reduction, with good reductions having a 18.2 (95% confidence interval 15.9 to 21.8) times decreased risk of severe osteoarthritis compared with fair or poor reductions, independent of the type of fixation used (p screw fixation for Lisfranc fracture dislocations (although screw fixation might be associated with a less planus foot and fewer complications). Instead, a good anatomic reduction was the only predictor of the radiologic outcome, and the Hardcastle classification of fractures did not

  5. Radiological accidents: education for prevention and confrontation

    International Nuclear Information System (INIS)

    Cardenas Herrera, Juan; Fernandez Gomez, Isis Maria

    2008-01-01

    The purpose of this work is to train and inform on radiological accidents as a preventive measure to improve the people life quality. Radiological accidents are part of the events of technological origin which are composed of nuclear and radiological accidents. As a notable figure is determined that there have been 423 radiological accidents from 1944 to 2005 and among the causes prevail industrial accidents, by irradiations, medical accidents and of laboratories, among others. Latin American countries such as Argentina, Brazil, Mexico and Peru are some where most accidents have occurred by radioactivity. The radiological accidents can have sociological, environmental, economic, social and political consequences. In addition, there are scenarios of potential nuclear accidents and in them the potential human consequences. Also, the importance of the organization and planning in a nuclear emergency is highlighted. Finally, the experience that Cuba has lived on the subject of radiological accidents is described [es

  6. Establishing diagnostic reference levels in digital radiology

    International Nuclear Information System (INIS)

    Bana, Remy Wilson

    2016-04-01

    Medical application of radiation has gained wider study since diagnostic radiology plays a very important role in modern medicine. The need of the service seems to increase since the invention of digital radiology as a new technology that promises greater accuracy while minimizing patient dose. However, it is not exempted in the harmonization of doses delivered to the patient undergoing same radiologic examination in different institutions either regional or nationwide. The objective of this project was to review the establishment of Diagnostic Reference Levels (DRLs) in digital radiology at National level with the aim to reduce patient dose while maintaining appropriate image quality. A general discussion on digital radiology has been presented focusing on the optimization of patient dose as well as dosimetric quantities used for the establishment of DRLs. Recommendations have been provided for Rwanda to initiate steps to establish National Diagnostic Reference Levels for common procedures in digital radiology. (au)

  7. Radiological protection and its organization in radiotherapy

    International Nuclear Information System (INIS)

    Gaona, E.; Canizal, C.; Garcia, M.A.

    1996-01-01

    By means of a research carried out in Radiotherapy Centers in Mexico City, divided in 7 public institutions and 5 private, aspects related to the radiological safety and its organization in radiotherapy were evaluated. The population being studied was: medical and technical personnel, that works in the selected radiotherapy centers. The survey was made with 36 dichotomic variables, being obtained 90 surveys. The personnel characteristics are: 76% works for more than 3 years in radiotherapy, 93% has updated information about radiological protection, 67% knows the general radiological safety regulations, 93% knows the radiological emergency project and 95% makes use of personal dosemeter. As result of this research we found that the main problems that the radiological protection have are: lack of personnel training in radiological protection, although the 93% states to have updated information, the few number of persons that takes part in clinical meetings and professional associations. (authors). 7 refs., 3 tabs

  8. Imaging Finding of Multiple Endocrine Neoplasia Type 1: Case Report

    International Nuclear Information System (INIS)

    Yum, Tae Jun; Cho, Hee Woo

    2012-01-01

    Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant inherited syndrome with characteristic clinical and radiological manifestations. Many reports on MEN1 have been published; however, no cases of radiologically diagnosed MEN1 have been reported. Therefore, we report on a radiologically diagnosed case of MEN1 with clinical symptoms of gastroduodenal ulcer.

  9. Radiological protection and public health: crossbreeding

    International Nuclear Information System (INIS)

    Smeesters, Patrick; Pinak, Miroslav

    2008-01-01

    Full text: This paper summarizes the scope of activities, ongoing experience and current results of the Expert Group on the Public Health Perspective in Radiological Protection (EGPH) of the Committee of Radiological Protection and Public Health, OECD Nuclear Energy Agency. While the prime and general task of the EGPH group is looking at how the public health and radiation protection can better take an advantage of their respective perspectives, the following four areas have been explored in detail: a) Exposure to radon; b) Justification of medical exposures; c) Public health judgement and decision making based on new scientific evidence; and d) Management of individual differences. In most of these areas, a targeted telephone survey on public policies in selected countries was used for collecting information from stake holders (public, consumers groups, public health and radiation protection regulators, governmental bodies, medical practitioners, patients, scientific communities, NGOs, etc.). The presented paper also highlights key issues of collected information and summarises existing approaches and policies. The case study on exposure to radon collects national information on approaches to the management of domestic radon risks, focusing on the integration of radiation protection and public health aspects (quality of dwellings, overall quality of indoor air, perception of radon levels, position of radon risk in the pool of other risks). In the case of justification of medical exposures, the Group studies the applications of the justification principle in opportunistic screenings (responsibilities, management of the situation, risk assessment). The precautionary principle and its impact on policy judgement in the light of significant scientific uncertainties can have a large influence on radiological-protection decision making. The case study on public health judgement and decision making based on new scientific evidence is exploring how these uncertainties and

  10. Phosphate gypsum wastes in Venice lagoon. Radiological impact

    International Nuclear Information System (INIS)

    Belli, M; Blasi, M; Guogang, J.; Rosamilia, S.; Sansone, U.; Biancotto, R.; Bidoli, P.; Sepulcri, D.

    2000-03-01

    The phosphoric minerals utilized in phosphoric acid production, presents high concentrations of radioactive materials: U238, Th 232, K 40. The phosphogypsum is the waste material obtained in the phosphoric acid production in wet process. This type of production method is employed for many years in Venice lagoon (Porto Marghera chemical plants). In this paper are reported evaluations of radiological impact on aquatic environment of lagoon [it

  11. Evaluation of the detector response function digital conventional radiology

    International Nuclear Information System (INIS)

    Arino Gil, A.; Hernandez Rodriguez, J.; Mateos Salvador, P.; Rodriguez Lopez, B.; Font Gelabert, J. C.

    2013-01-01

    The objective of this work is to obtain the response function that relates the air kerma at the entrance of the detector and pixel value, for a series of digital detectors of conventional Radiology model Optimus DigitalDiagnost Philips () and 6000 Definium General Electric. From the set of measurements is obtained a response function for each reference type of detector, and compared with those published in the literature for these teams. (Author)

  12. Radiology and diseases of the teeth and jaw

    International Nuclear Information System (INIS)

    Beyer, D.; Herzog, M.; Zanella, F.E.; Bohndorf, K.; Walter, E.; Huels, A.

    1987-01-01

    This book demonstrates the individual types of disease complete with their symptoms and signs, their clinical issues and radiological methods available for their clarification, including modern imaging techniques like computerized tomography and nuclear magnetic resonance. The concept and layout of the book intends to provide a handy, richly illustrated reference manual for the daily work of dentists, oral surgeons, ENT-doctors, and radiologists. With 211 figs [de

  13. Physical correlates of radiologic heart volume

    International Nuclear Information System (INIS)

    Christie, D.

    1978-01-01

    Radiologic heart volume was calculated on a 10 per cent random sample of subjects examined in the London Civil Service Health Survey. Data were available for 1 188 men over the age of 40, and the importance of correcting radiologic heart volume for body size, age and heart rate was demonstrated. After these variables were taken into account, the most important association found was with blood pressure. Radiologic heart volume has potential value in cardiovascular screening programmes. (Auth.)

  14. Radiological approach to systemic connective tissue diseases

    Energy Technology Data Exchange (ETDEWEB)

    Wiesmann, W.; Schneider, M.

    1988-07-01

    Systemic lupus erythematosus (SLE) and progressive systemic sclerosis (PSS) represent the most frequent manifestations of systemic connective tissue diseases (collagen diseases). Radiological examinations are employed to estimate the extension and degree of the pathological process. In addition, progression of the disease can be verified. In both of the above collagen diseases, specific radiological findings can be observed that permit them to be differentiated from other entities. An algorithm for the adequate radiological work-up of collagen diseases is presented.

  15. Radiological field survey problems and solutions

    International Nuclear Information System (INIS)

    Deming, E.J.; Boerner, A.J.

    1986-01-01

    Situations often arise during radiological field surveys which require the health physicist to improvise and/or make spot decisions. At times these situations can be humorous, but they can also present hazards more serious than normal radiological considerations. This presentation will depict various problematic situations encountered by Oak Ridge Associated Universities Radiological Site Assessment Program in the course of performing field environmental surveys. Detailing these potential hazards can alert other field survey groups to problems they may encounter

  16. Evaluation of radiological detriment from negative radiological examinations

    International Nuclear Information System (INIS)

    Frometa Suarez, I.; Jerez Vergueria, S.F.

    1997-01-01

    The individul doses of radiation due to diagnostic radiology are usually low, though their contribution to the collective dose is very important given the large numbers of people exposed to these. This paper presents an analysis of the number of negative radiologiacl examinations in a major Cuban Hospital, and their contribution to the collective dose, and radiation organ and tissue, effective (expressed as severe hereditary effect and the occurrence of fatal and non fatal cancers) are all evaluated. The negative findings constitute 41 % of all examinations. The total contribution of negative examinations to the collective dose is very important given the large numbers of people exposed to these. This papaer presents an analysis of the number of negative radiological examinations in major Cuban Hospital, and their contribution to the collective dose of radiation. The absorbed dose by irradiation organ and tissue, effective dose equivalent, collective dose, and radiation risk (expressed as severe herditary effect and the occureence of fatal and non fatal cancers) are all evaluated. The negative findings constitute 41% of all examinations. The total contribution of negative examinations. The total contribution of negative examinations to the collective dose are found to make up 52.9 %: 11.35 Sv-man in the studied population

  17. Radiological findings of pulmonary aspergillosis

    International Nuclear Information System (INIS)

    Song, Kounn Sik; Im, Chung Kie

    1985-01-01

    The pulmonary aspergillosis is a group of three separate disease, comprising invasive aspergillosis, aspergilloma, and allergic bronchopulmonary aspergillosis, or a disease process in which one of three entities overlap with another process such as mucoid impaction, pulmonary infiltration with eosinophilia, bronchocentric granulomatosis, microgranulomatous hypersensitivity, or asthma. The radiological findings of 24 cases of pulmonary aspergillosis diagnosed and treated at Seoul National University Hospital during the past 7 years were analyzed retrospectively. The results were as follows: 1. Final diagnosis of 24 cases of pulmonary aspergillosis was aspergilloma in 16 cases, invasive aspergillosis in 2 cases, variant form of allergic bronchopulmonary aspergillosis in 3 cases, and endobronchial aspergillosis in 3 cases. 2. The underlying causes of the aspergilloma were healed tuberculous cavity in 6 cases, bronchiectasis in 8 cases, and no underlying cause were found in 2 cases. All the 16 cases of aspergilloma were correctly diagnosed without difficultly by demonstrating the intracavitary mass or air meniscus. 3. Radiological findings of the invasive aspergillosis in kidney transplant patients were multiple round nodules with early cavitation and formation of aspergilloma which shows slowly progressive cavitation over 13 months in one case, and diffusely scattered miliary nodules with occasional cavitation in the other case. 4. Classic allergic bronchopulmonary aspergillosis were not found in our series but variant form of ABPA was found in 3 young female patients. All the three patients shows some degree of central bronchiectasis and combined aspergilloma was found in 2 cases. 5. Three patients diagnosed as endobronchial aspergillosis-saprophytic infection of aspergillus in the bronchial tree-by bronchoscopic biopsy shows nonspecific radiological findings

  18. Research on photoconductor radiological sensors

    International Nuclear Information System (INIS)

    Beaumont, Francois

    1989-01-01

    Because of the evolution of medical imaging techniques to digital systems, it is necessary to replace radiological film which has many drawbacks, by a detector quite as efficient and quickly giving a digitable signal. The purpose of this thesis is to find new X-ray digital imaging processes using photoconductor materials such as amorphous selenium. After reviewing the principle of direct radiology and functions to be served by the X-ray sensor (i e. detection, memory, assignment, visualization), we explain specification. We especially show the constraints due to the object to be radio-graphed (condition of minimal exposure), and to the reading signal (electronic noise detection associated with a reading frequency). As a result of this study, a first photoconductor sensor could be designed. Its principle is based on photo carrier trapping at dielectric-photoconductor structure interface. The reading system needs the scanning of a laser beam upon the sensor surface. The dielectric-photoconductor structure enabled us to estimate the possibilities offered by the sensor and to build a complete x-ray imaging system. The originality of thermos-dielectric sensor, that was next studied, is to allow a thermal assignment reading. The chosen system consists in varying the ferroelectric polymer capacity whose dielectric permittivity is weak at room temperature. The thermo-dielectric material was studied by thermal or Joule effect stimulation. During our experiments, trapping was found in a sensor made of amorphous selenium between two electrodes. This new effect was performed and enabled us to expose a first interpretation. Eventually, the comparison of these new sensor concepts with radiological film shows the advantage of the proposed solution. (author) [fr

  19. Radiology in children. Vol. 2

    International Nuclear Information System (INIS)

    Schuster, W.

    1990-01-01

    In recent years, there has been sweeping change in the methods of imaging used for children to establish a diagnosis. Owing to the advent of innovative diagnostic tools like computed tomography and magnetic resonance tomography and, in particular, the further refinement of methods from the field of sonography, the range of diagnostic measures has been broadened considerably. The use of radiological procedures in children not only requires special knowledge about the particular clinical pictures, which may often differ radically from those seen in adults, but also a sound judgement of the usefulness of the available diagnostic arsenal that can only be achieved in long years of experience. In addition, investigators must be careful that the relevant quality standards are met and radiation exposure risks kept to a minimum. During the preparatory work for this book, the publisher and contributers have taken great trouble to help achieve this aim. The subdivisions in this book are according to organs and tissues so that their growth and development as well as normal variations between individuals and general patterns of pathological changes can be treated, from the radiological point of view, separately in the different chapters. Descriptions of the various disorders are based on the prevailing clinical findings and, no less important, their radiological appearances, the range of differential diagnoses and image analysis. In each chapter, particular attention is given to the role of sonography, which over the past few years has been gaining increasingly in importance as a method of examination for children. A 'diagnostic flow diagram' was included to show which would be the most recommendable succession of diagnostic procedures in the individual diseases. (orig./GDG) With 933 figs [de

  20. Emergency department musculoskeletal radiological requests abuse and patients attitude toward radiological exposure in Saudi Arabia

    Directory of Open Access Journals (Sweden)

    T. Montaser*

    2013-12-01

    Conclusion: People in Saudi Arabia expose to huge amount of radiological hazardous with a common believe that radiology is essential for diagnosis all musculoskeletal injuries. Wealthy medical system does not always lead to competent practice.

  1. Managerial accounting applications in radiology.

    Science.gov (United States)

    Lexa, Frank James; Mehta, Tushar; Seidmann, Abraham

    2005-03-01

    We review the core issues in managerial accounting for radiologists. We introduce the topic and then explore its application to diagnostic imaging. We define key terms such as fixed cost, variable cost, marginal cost, and marginal revenue and discuss their role in understanding the operational and financial implications for a radiology facility by using a cost-volume-profit model. Our work places particular emphasis on the role of managerial accounting in understanding service costs, as well as how it assists executive decision making.

  2. Decision Strategy: Radiological Evaluations: Air

    International Nuclear Information System (INIS)

    Sohier, A.

    2000-01-01

    The objectives of SCK-CEN's R and D programme on off-site emergency management are (1) to improve methods to assess in real time the radiological impact to the population and the environment during a nuclear emergency; (2) to support and advise the Belgian authorities on specific problems concerning existing and potential hazards from exposure to ionising radiation in normal and accidental conditions; (3) to organise training courses on off-site emergency response to nuclear accidents. Main achievements in 1999 are reported on

  3. Observer variation in skeletal radiology

    Energy Technology Data Exchange (ETDEWEB)

    Cockshott, W.P.; Park, W.M.

    1983-08-01

    The factors that affect observer variation in bone radiology are analysed from data in the literature and on the basis of studies carried out at McMaster University on the hands and sacroiliac joints. A plea is made for presenting results in terms of Kappa statistics so that agreement due purely to chance is eliminated. In the conclusions the main variables that affect concordance are listed so that strategies can be developed to reduce observer variation. This is important in serial studies to ensure that the observer variations are smaller than the effect one wishes to measure.

  4. Online social networking for radiology.

    Science.gov (United States)

    Auffermann, William F; Chetlen, Alison L; Colucci, Andrew T; DeQuesada, Ivan M; Grajo, Joseph R; Heller, Matthew T; Nowitzki, Kristina M; Sherry, Steven J; Tillack, Allison A

    2015-01-01

    Online social networking services have changed the way we interact as a society and offer many opportunities to improve the way we practice radiology and medicine in general. This article begins with an introduction to social networking. Next, the latest advances in online social networking are reviewed, and areas where radiologists and clinicians may benefit from these new tools are discussed. This article concludes with several steps that the interested reader can take to become more involved in online social networking. Copyright © 2015 AUR. Published by Elsevier Inc. All rights reserved.

  5. Ebola virus disease: radiology preparedness.

    Science.gov (United States)

    Bluemke, David A; Meltzer, Carolyn C

    2015-02-01

    At present, there is a major emphasis on Ebola virus disease (EVD) preparedness training at medical facilities throughout the United States. Failure to have proper EVD procedures in place was cited as a major reason for infection of medical personnel in the United States. Medical imaging does not provide diagnosis of EVD, but patient assessment in the emergency department and treatment isolation care unit is likely to require imaging services. The purpose of this article is to present an overview of relevant aspects of EVD disease and preparedness relevant to the radiologic community. © RSNA, 2014.

  6. Nuclear and radiological Security: Introduction

    International Nuclear Information System (INIS)

    Miller, James Christopher

    2016-01-01

    Nuclear security includes the prevention and detection of, and response to, theft, sabotage, unauthorized access, illegal transfer, or other malicious acts involving nuclear or other radioactive substances or their associated facilities. The presentation begins by discussing the concept and its importance, then moves on to consider threats--insider threat, sabotage, diversion of materials--with considerable emphasis on the former. The intrusion at Pelindaba, South Africa, is described as a case study. The distinction between nuclear security and security of radiological and portable sources is clarified, and the international legal framework is touched upon. The paper concludes by discussing the responsibilities of the various entities involved in nuclear security.

  7. 63rd German radiological congress

    International Nuclear Information System (INIS)

    1982-01-01

    The book of abstracts contains abstracts of 171 papers read at the German Radiological Congress in Berlin as well as abstracts of two papers not read for lack of time. Further, there are 31 brief descriptions of the scientific exhibition. Subjects: Diagnosis of gall bladder diseases and inflammatory diseases of the large intestine; hyperthermia and irradiation in tumour therapy; nuclear methods in the diagnosis of growing and displacing processes, skeletal diseases, thromboses, embolisms, gastrointestinal and liver affections; new techniques and methods, diagnostics of the spinal tract; radiooncology; carcinoma of the ovaries; diagnostics and therapy of tumours of the lungs; computerized tomography; angiography; ultrasonic diagnosis. (MG) [de

  8. Morquio syndrome: A radiological diagnosis

    Directory of Open Access Journals (Sweden)

    Sadhanandham Shrinuvasan

    2015-01-01

    Full Text Available Mucopolysaccharidoses (MPS are a family of inherited metabolic diseases that results from the deficiency of lysosomal enzymes involved in the degradation of the glycosaminoglycans (MPS. We report here a 7-year-old female child who presented with complaints of short stature, skeletal deformities, and difficulty in walking with normal intelligence. A clinical diagnosis with differential diagnosis of achondroplasia/rickets was considered. Skeletal survey showed radiological features characteristic of Morquio syndrome (MPS IV which lead to diagnosis in this case.

  9. Nuclear and radiological Security: Introduction.

    Energy Technology Data Exchange (ETDEWEB)

    Miller, James Christopher [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-02-24

    Nuclear security includes the prevention and detection of, and response to, theft, sabotage, unauthorized access, illegal transfer, or other malicious acts involving nuclear or other radioactive substances or their associated facilities. The presentation begins by discussing the concept and its importance, then moves on to consider threats--insider threat, sabotage, diversion of materials--with considerable emphasis on the former. The intrusion at Pelindaba, South Africa, is described as a case study. The distinction between nuclear security and security of radiological and portable sources is clarified, and the international legal framework is touched upon. The paper concludes by discussing the responsibilities of the various entities involved in nuclear security.

  10. Problems with radiological surveillance instrumentation

    International Nuclear Information System (INIS)

    Swinth, K.L.; Tanner, J.E.; Fleming, D.M.

    1984-09-01

    Many radiological surveillance instruments are in use at DOE facilities throughout the country. These instruments are an essential part of all health physics programs, and poor instrument performance can increase program costs or compromise program effectiveness. Generic data from simple tests on newly purchased instruments shows that many instruments will not meet requirements due to manufacturing defects. In other cases, lack of consideration of instrument use has resulted in poor acceptance of instruments and poor reliability. The performance of instruments is highly variable for electronic and mechanical performance, radiation response, susceptibility to interferences and response to environmental factors. Poor instrument performance in these areas can lead to errors or poor accuracy in measurements

  11. Radiological protection in medicine. ICRP Publication 105

    International Nuclear Information System (INIS)

    2011-01-01

    This report was prepared to underpin the Commission's 2007 Recommendations with regard to the medical exposure of patients, including their comforters and carers, and volunteers in biomedical research. It addresses the proper application of the fundamental principles (justification, optimisation of protection, and application of dose limits) of the Commission's 2007 Recommendations to these individuals. With regard to medical exposure of patients, it is not appropriate to apply dose limits or dose constraints, because such limits would often do more harm than good. Often, there are concurrent chronic, severe, or even life-threatening medical conditions that are more critical than the radiation exposure. The emphasis is then on justification of the medical procedures and on the optimisation of radiological protection. In diagnostic and interventional procedures, justification of procedures (for a defined purpose and for an individual patient), and management of the patient dose commensurate with the medical task, are the appropriate mechanisms to avoid unnecessary or unproductive radiation exposure. Equipment features that facilitate patient dose management, and diagnostic reference levels derived at the appropriate national, regional, or local level, are likely to be the most effective approaches. In radiation therapy, the avoidance of accidents is a predominant issue. With regard to comforters and carers, and volunteers in biomedical research, dose constraints are appropriate. Over the last decade, the Commission has published a number of documents that provided detailed advice related to radiological protection and safety in the medical applications of ionising radiation. Each of the publications addressed a specific topic defined by the type of radiation source and the medical discipline in which the source is applied, and was written with the intent of communicating directly with the relevant medical practitioners and supporting medical staff. This report

  12. High sensitive radiation detector for radiology dosimetry

    Energy Technology Data Exchange (ETDEWEB)

    Valente, M.; Malano, F. [Instituto de Fisica Enrique Gaviola, Oficina 102 FaMAF - UNC, Av. Luis Medina Allende, Ciudad Universitaria, 5000 Cordoba (Argentina); Molina, W.; Vedelago, J., E-mail: valente@famac.unc.edu.ar [Laboratorio de Investigaciones e Instrumentacion en Fisica Aplicada a la Medicina e Imagenes por Rayos X, Laboratorio 448 FaMAF - UNC, Ciudad Universitaria, 5000 Cordoba (Argentina)

    2014-08-15

    Fricke solution has a wide range of applications as radiation detector and dosimetry. It is particularly appreciated in terms of relevant comparative advantages, like tissue equivalence when prepared in aqueous media like gel matrix, continuous mapping capability, dose rate recorded and incident direction independence as well as linear dose response. This work presents the development and characterization of a novel Fricke gel system, based on modified chemical compositions making possible its application in clinical radiology. Properties of standard Fricke gel dosimeter for high dose levels are used as starting point and suitable chemical modifications are introduced and carefully investigated in order to attain high resolution for low dose ranges, like those corresponding to radiology interventions. The developed Fricke gel radiation dosimeter system achieves the expected typical dose dependency, actually showing linear response in the dose range from 20 up to 4000 mGy. Systematic investigations including several chemical compositions are carried out in order to obtain a good enough dosimeter response for low dose levels. A suitable composition among those studied is selected as a good candidate for low dose level radiation dosimetry consisting on a modified Fricke solution fixed to a gel matrix containing benzoic acid along with sulfuric acid, ferrous sulfate, xylenol orange and ultra-pure reactive grade water. Dosimeter samples are prepared in standard vials for its in phantom irradiation and further characterization by spectrophotometry measuring visible light transmission and absorbance before and after irradiation. Samples are irradiated by typical kV X-ray tubes and calibrated Farmer type ionization chamber is used as reference to measure dose rates inside phantoms in at vials locations. Once sensitive material composition is already optimized, dose-response curves show significant improvement regarding overall sensitivity for low dose levels. According to

  13. A health survey of radiologic technologists

    International Nuclear Information System (INIS)

    Boice, J.D. Jr.; Mandel, J.S.; Doody, M.M.; Yoder, R.C.; McGowan, R.

    1992-01-01

    A health survey of more than 143,000 radiologic technologists is described. The population was identified from the 1982 computerized files of the American Registry of Radiologic Technologists, which was established in 1926. Inactive members were traced to obtain current addresses or death notifications. More than 6000 technologists were reported to have died. For all registrants who were alive when located, a detailed 16-page questionnaire was sent, covering occupational histories, medical conditions, and other personal and lifestyle characteristics. Nonrespondents were contacted by telephone to complete an abbreviated questionnaire. More than 104,000 responses were obtained. Most technologists were female (76%), white (93%), and employed for an average of 12 years; 37% attended college, and approximately 50% never smoked cigarettes. Radiation exposure information was sought from employer records and commercial dosimetry companies. Technologists employed for the longest times had the highest estimated cumulative exposures, with approximately 9% with exposures greater than 5 cGy. There was a high correlation between cumulative occupational exposure and personal exposure to medical radiographs, related, in part, to the association of both factors with attained age. It is interesting that 10% of all technologists allowed others to practice taking radiographs on them during their training. Nearly 4% of the respondents reported having some type of cancer, mainly of the skin (1517), breast (665), and cervix (726). Prospective surveys will monitor cancer mortality rates through use of the National Death Index and cancer incidence through periodic mailings of questionnaires. This is the only occupational study of radiation employees who are primarily women and should provide new information on the possible risks associated with relatively low levels of exposure

  14. High sensitive radiation detector for radiology dosimetry

    International Nuclear Information System (INIS)

    Valente, M.; Malano, F.; Molina, W.; Vedelago, J.

    2014-08-01

    Fricke solution has a wide range of applications as radiation detector and dosimetry. It is particularly appreciated in terms of relevant comparative advantages, like tissue equivalence when prepared in aqueous media like gel matrix, continuous mapping capability, dose rate recorded and incident direction independence as well as linear dose response. This work presents the development and characterization of a novel Fricke gel system, based on modified chemical compositions making possible its application in clinical radiology. Properties of standard Fricke gel dosimeter for high dose levels are used as starting point and suitable chemical modifications are introduced and carefully investigated in order to attain high resolution for low dose ranges, like those corresponding to radiology interventions. The developed Fricke gel radiation dosimeter system achieves the expected typical dose dependency, actually showing linear response in the dose range from 20 up to 4000 mGy. Systematic investigations including several chemical compositions are carried out in order to obtain a good enough dosimeter response for low dose levels. A suitable composition among those studied is selected as a good candidate for low dose level radiation dosimetry consisting on a modified Fricke solution fixed to a gel matrix containing benzoic acid along with sulfuric acid, ferrous sulfate, xylenol orange and ultra-pure reactive grade water. Dosimeter samples are prepared in standard vials for its in phantom irradiation and further characterization by spectrophotometry measuring visible light transmission and absorbance before and after irradiation. Samples are irradiated by typical kV X-ray tubes and calibrated Farmer type ionization chamber is used as reference to measure dose rates inside phantoms in at vials locations. Once sensitive material composition is already optimized, dose-response curves show significant improvement regarding overall sensitivity for low dose levels. According to

  15. Artificial intelligence in radiology: decision support systems.

    Science.gov (United States)

    Kahn, C E

    1994-07-01

    Computer-based systems that incorporate artificial intelligence techniques can help physicians make decisions about their patients' care. In radiology, systems have been developed to help physicians choose appropriate radiologic procedures and to formulate accurate diagnoses. These decision support systems use techniques such as rule-based reasoning, artificial neural networks, hypertext, Bayesian networks, and case-based reasoning. This article reviews these artificial intelligence techniques, describes their application in radiology, and discusses the role that decision support systems may play in radiology's future.

  16. Military radiology during the first world conflict

    International Nuclear Information System (INIS)

    Le Vot, J.

    2016-01-01

    Published at the occasion of the centenary of the First World War, this article proposes an historical overview of the emergence and development of military medical radiology during this conflict. The author first describes the situation of radiology in the different armies and countries on the eve of the war as this application of radiology is relatively recent (it is based on Roentgen's discovery in 1895). He indicates the first steps of emergence of radiology department in military hospitals, the interest of military physicians in radiology and the availability of mobile equipment which had been actually presented at the parade on the 14 July 1914. The author then highlights some important personalities who have been important actors of the development, application and use of radiology and of military radiology during the war. He proposes an overview of radiological equipment in 1914, of the variety of vehicles adapted to transport and use such equipment. He also comments how radiology professionals were trained

  17. Implementation of a Radiological Safety Coach program

    International Nuclear Information System (INIS)

    Konzen, K.K.

    1998-01-01

    The Safe Sites of Colorado Radiological Safety program has implemented a Safety Coach position, responsible for mentoring workers and line management by providing effective on-the-job radiological skills training and explanation of the rational for radiological safety requirements. This position is significantly different from a traditional classroom instructor or a facility health physicist, and provides workers with a level of radiological safety guidance not routinely provided by typical training programs. Implementation of this position presents a challenge in providing effective instruction, requiring rapport with the radiological worker not typically developed in the routine radiological training environment. The value of this unique training is discussed in perspective with cost-savings through better radiological control. Measures of success were developed to quantify program performance and providing a realistic picture of the benefits of providing one-on-one or small group training. This paper provides a description of the unique features of the program, measures of success for the program, a formula for implementing this program at other facilities, and a strong argument for the success (or failure) of the program in a time of increased radiological safety emphasis and reduced radiological safety budgets

  18. Environmental radiology assessment in Lahad Datu, Sabah

    Science.gov (United States)

    Siti Fharhana, Yusof; Wan Muhamad Saridan, Wan Hassan; Ahmad Termizi, Ramli; Mohd Hilmi, Sahini; Mohammad Syazwan, Mohd Sanusi; Nor Afifah, Basri; Nor Zati Hani, Abu Hanifah

    2017-10-01

    Monitoring terrestial gamma radiation is crucial to prepare a baseline data for environmental radiological protection. Radiological research was carried out in Lahad Datu, Sabah to obtain the radioactivity status and terrestrial gamma radiation level in the area. We measure the terrestrial gamma radiation dose rates and analyse the radioactivity concentration of primordial radionuclides for radiological risk assessment. We identified that the annual estimation of dose effective for public is below the public dose limit, 1 mSv per year. Public and environment safety and health are remain secure. The obtained data and results can be used as reference for environmental radiology protection.

  19. Implementation of a Radiological Safety Coach program

    Energy Technology Data Exchange (ETDEWEB)

    Konzen, K.K. [Safe Sites of Colorado, Golden, CO (United States). Rocky Flats Environmental Technology Site; Langsted, J.M. [M.H. Chew and Associates, Golden, CO (United States)

    1998-02-01

    The Safe Sites of Colorado Radiological Safety program has implemented a Safety Coach position, responsible for mentoring workers and line management by providing effective on-the-job radiological skills training and explanation of the rational for radiological safety requirements. This position is significantly different from a traditional classroom instructor or a facility health physicist, and provides workers with a level of radiological safety guidance not routinely provided by typical training programs. Implementation of this position presents a challenge in providing effective instruction, requiring rapport with the radiological worker not typically developed in the routine radiological training environment. The value of this unique training is discussed in perspective with cost-savings through better radiological control. Measures of success were developed to quantify program performance and providing a realistic picture of the benefits of providing one-on-one or small group training. This paper provides a description of the unique features of the program, measures of success for the program, a formula for implementing this program at other facilities, and a strong argument for the success (or failure) of the program in a time of increased radiological safety emphasis and reduced radiological safety budgets.

  20. Multimedia in the radiology environment: current concept.

    Science.gov (United States)

    Huang, H K; Arenson, R L; Lou, S L; Wong, A W; Andriole, K P; Bazzill, T M; Avrin, D

    1994-01-01

    Multimedia has different meanings according to its context. Here, multimedia in the radiology environment is defined as the integration of multiple radiology and medical information systems to facilitate the practice of radiology. These information systems include the hospital information system, radiology information system, picture archiving and communication systems, voice reporting, library information systems, and electronic mail and file systems. The concept of multimedia within the context of integration of these database systems will be presented. An example is given on how to access these information systems by a radiologist's desktop personal computer.

  1. Regulations and practices for systematic radiological screening within countries of the European community

    International Nuclear Information System (INIS)

    Lefaure, C.

    1987-01-01

    The presentation of the situation concerning the various types of mass radiological screening within the countries of the European community is a brief description of the following: - the status of public regulations, - recommendations issued by medical authorities in various countries, - the actual practices of the medical profession, whether governed or not by the aforementioned regulations and official recommendations. Regulations, recommendations and/or systematic mass radiological screening practices concern mainly three diseases: - tuberculosis, - cancer of the breast, - congenital dislocation of the hip

  2. Proceedings of the Session of Radiological Protection in Medicine

    International Nuclear Information System (INIS)

    2016-01-01

    The Argentine Society for Radiation Protection has organized the Radiological Protection Session in Medicine 2016 in order to continue with the radiological update on specific radiological topics in radiology, nuclear medicine and interventional medicine, as well as to optimize the radiological protection of workers, patients and the public. [es

  3. Benign paroxysmal positional vertigo after radiologic scanning: a case series

    Directory of Open Access Journals (Sweden)

    Aydin Erdinc

    2008-03-01

    Full Text Available Abstract Introduction Benign paroxysmal positional vertigo (BPPV is the most common type of vertigo. It is frequently seen in elderly patients, and the course of the attack may easily mimic cerebrovascular disease. A BPPV attack after a radiologic examination has not been reported previously. We report the cases of two patients who had BPPV attacks after radiologic imaging. Case presentation The first patient with headache and tremor was admitted to the radiology department for cranial computed tomography (CT imaging. During scanning, she was asked to lie in the supine position with no other head movements for approximately 10 minutes. After the cranial CT imaging, she stood up rapidly, and suddenly experienced a vertigo attack and nausea. The second patient was admitted to the radiology department for evaluation of his renal arteries. During the renal magnetic resonance angiography, he was in the supine position for 20 minutes and asked not to move. After the examination, he stood up rapidly with the help of the technician and suddenly experienced a vertigo attack with nausea and vomiting. The results of standard laboratory analyses and their neurologic examinations were within normal limits and Dix-Hallpike tests showed rotatory nystagmus in both cases. An Epley maneuver was performed to the patients. The results of a control Dix-Hallpike tests after 1 Epley maneuver were negative in both patients. Conclusion Radiologists and clinicians must keep in mind that after radiologic imaging in which the patient is still for some time in the supine position and then helped to stand up rapidly, a BPPV attack may occur.

  4. Bony sequestrum: A radiologic review

    Energy Technology Data Exchange (ETDEWEB)

    Jennin, Felicie; Bousson, Valerie; Parlier, Caroline; Jomaah, Nabil; Khanine, Vanessa; Laredo, Jean-Denis [Lariboisiere Hospital, Department of Radiology, Paris (France)

    2011-08-15

    According to a pathological definition, a bony sequestrum is defined as a piece of devitalized bone that has been separated from the surrounding bone during the process of necrosis. However, the radiological definition of a sequestrum is different and refers to an image of calcification visible within a lucent lesion, completely separated from the surrounding bone, without referring to the vascular status and histological nature of the calcified tissue. The term ''button sequestrum'' has been used in calvarial lesions. The prototype conditions that may present with a bony sequestrum are osteomyelitis and skeletal tuberculosis. Other conditions such as radiation necrosis, eosinophilic granuloma, metastatic carcinoma, primary lymphoma of bone, aggressive fibrous tumors may also manifest as osteolytic lesions containing a sequestrum. In addition, some primary bone tumors produce a matrix that may mineralize and sometimes simulate a bone sequestrum. These include osteoid tumors (osteoid osteoma, osteoblastoma), cartilaginous tumors (chondroma and chondroblastoma), lipomatous tumors (lipoma), and benign fibrous tumors (fibromyxoma, myxoma, and desmoplastic fibroma). Therefore, various conditions may present at imaging as a small area of osteolysis containing central calcifications. However, a careful analysis of the sequestrum as well as the associated clinical and radiological findings often enables to point toward a limited number of conditions. (orig.)

  5. Radiological diagnosis of skeletal tuberculosis

    International Nuclear Information System (INIS)

    Numberger, J.

    1982-01-01

    The general X-ray-symptoms follow one another or appear at the same time: Swelling of soft tissues by fungus; toxic perifocal and sometimes parafocal osteoporosis; osteolysis by specific granulation tissues; destruction of adjacent discs and articulation cartilages; formation of sequesters; cold abscess and formation of fistulas because of perforation of the corticalis by liquified tuberculous tissue; bone compression and deformation; amorphous calcifications; perifocal osteosclerosis as a repairing process. The spondylitis tuberculosis is the most frequent form with about 50%; usually narrowing of the discspace is the earliest X-ray-finding. On the second and third place follow the tuberculosis of the hip- and the knee-joint, the rest shows up at other locations of red bone marrow. Very often the perifocal osteoporosis is the earliest X-ray-symptom of joint tuberculosis. All X-ray-findings, even the earliest, in reality are late symptoms, because at that time the disease exists at least some months. Radiologically only the differential diagnosis can be made, final diagnosis is established by histologic examination only. Because the course of untreated skeletal tuberculosis usually is chronic and destructive and, on the other hand early antituberculous chemotherapy as well as surgical treatment show excellent results early radiological suggestion of tuberculosis is of great importance for initiating other diagnostic procedures to establish the diagnosis. (orig./MG) [de

  6. Biloma: radiologic diagnosis and treatment

    International Nuclear Information System (INIS)

    Kim, Hong; Woo, Yung Hoon; Woo, Seong Ku

    1990-01-01

    The localized intraabdominal bile collection or biloma has recently been diagnosed in increased frequently due to the wide spread use of US, CT, DISIDA scintigram, and radiologically guided percutaneous needle aspiration with or without subsequent catheter drainage. The underlying cause of biloma is trauma or iatrogenic injury which includes abdominal surgery, percutaneous drainage or PTC. We experience 20 patients with 22 biloma diagnostically confirmed by DISIDA scan, image-guided needle aspiration, percutaneous catheter drainage and / or operation. Of the 22 biloma, 7 were intrahepatic and 15 were extrahepatic. Of the 15 extrahepatic biloma, 7 were in partially hepatectomized bed, 3 were subhepatic, 3 were right subphrenic and 1 was subcapsular. We were able to determine the infectivity in 16 biloma and of these 12 biloma were found to be infected. Percutaneous drainage was performed on 20 biloma in 18 patients : by a needle aspiration with irrigation on 2 patient and by percutaneous catheter drainage on 18 bilomas. Overall success rate of the drainage was 90%. Cause of the two failures were CHD stone with choledochoduodenal fistula and recurrent hemobilia with acute cholecystitis. We describe the processes in reaching the diagnosis of biloma, propensity of biloma to purulent intrahepatic or perihepatic abscess formation, and the necessity of percutaneous radiologic catheter drainage as an optional management

  7. Bony sequestrum: A radiologic review

    International Nuclear Information System (INIS)

    Jennin, Felicie; Bousson, Valerie; Parlier, Caroline; Jomaah, Nabil; Khanine, Vanessa; Laredo, Jean-Denis

    2011-01-01

    According to a pathological definition, a bony sequestrum is defined as a piece of devitalized bone that has been separated from the surrounding bone during the process of necrosis. However, the radiological definition of a sequestrum is different and refers to an image of calcification visible within a lucent lesion, completely separated from the surrounding bone, without referring to the vascular status and histological nature of the calcified tissue. The term ''button sequestrum'' has been used in calvarial lesions. The prototype conditions that may present with a bony sequestrum are osteomyelitis and skeletal tuberculosis. Other conditions such as radiation necrosis, eosinophilic granuloma, metastatic carcinoma, primary lymphoma of bone, aggressive fibrous tumors may also manifest as osteolytic lesions containing a sequestrum. In addition, some primary bone tumors produce a matrix that may mineralize and sometimes simulate a bone sequestrum. These include osteoid tumors (osteoid osteoma, osteoblastoma), cartilaginous tumors (chondroma and chondroblastoma), lipomatous tumors (lipoma), and benign fibrous tumors (fibromyxoma, myxoma, and desmoplastic fibroma). Therefore, various conditions may present at imaging as a small area of osteolysis containing central calcifications. However, a careful analysis of the sequestrum as well as the associated clinical and radiological findings often enables to point toward a limited number of conditions. (orig.)

  8. Patient dosimetry in interventional radiology

    International Nuclear Information System (INIS)

    Silva, Mauro Wilson O. da; Canevaro, Lucia V.; Rodrigues, Barbara Beatriz D.

    2009-01-01

    Mapping skin doses in interventional radiology is useful to determine the probability of a possible injury, to detect areas of overlapping field and to obtain a permanent register of the most exposed skin areas. A method for the evaluation of patient doses in interventional radiology procedures is the slow film, Kodak EDR2 (Extended Dose Range). Kodak EDR 2 film was calibrated in the range of 50 kVp to 120 kVp beam qualities. Its dose-response curve was plotted up to the saturation point of 1000 mGy. Dose responses are a function of facility dependent factors including processing conditions the density sampling, and exposure monitoring equipment. The distribution and the form of all the irradiation fields have been registered in the Kodak EDR 2 films. The Dosimetric analysis was performed in a sample of 37 patients submitted the procedures coronariography and angioplasty. The film has a threshold of saturation around 1 Gy, the applied methodology is efficient to quantify the doses and to identify the distribution of the fields. (author)

  9. The radiologic findings of neurofibromatosis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, So Sun; Park, Yeon Won; Kim, No Joon; Chun, Byung Hee; Joh, Young Duk [Kosin Medical College, Pusan (Korea, Republic of); Suh, Soo Jhi [Keimyung University Medical College, Taegu (Korea, Republic of)

    1986-08-15

    Neurofibromatosis, or von Recklinghausen's disease, is a hereditary, harmartomatous disorder that primarily involves neuro ectoderm and mesoderm. The estimated incidence is 1 in 2,500 to 3,000 births. The clinical features are skin manifestations such as cafe-au-lait spots, skeletal manifestations primarily involving vertebrae, central and peripheral nervous manifestations, and other associated abnormalities with increased risk of malignancy. The authors analysed the radiologic findings of 18 cases of patients with neurofibromatosis who visited Pusan Kosin Medical Center and Taegu Dongsan Medical Center during the last five years. All were proven by surgery, biopsy and other diagnostic criteria. The results obtained were as follows: 1. The male to female ratio was 11:7 and the age ranged from 11 months to 51 years. 2. All the cases fulfilled the diagnostic criteria of Crowe and associates. 3. Bone manifestations were present in 44% of the cases. The other radiologic findings were intrathoracic meningocele, bilateral acoustic neurinomas, mediastinal or chest wall mass shadows, and peripheral soft tissue masses. 4. One of the soft tissue masses was proved to be malignant.

  10. The radiologic findings of neurofibromatosis

    International Nuclear Information System (INIS)

    Kim, So Sun; Park, Yeon Won; Kim, No Joon; Chun, Byung Hee; Joh, Young Duk; Suh, Soo Jhi

    1986-01-01

    Neurofibromatosis, or von Recklinghausen's disease, is a hereditary, harmartomatous disorder that primarily involves neuro ectoderm and mesoderm. The estimated incidence is 1 in 2,500 to 3,000 births. The clinical features are skin manifestations such as cafe-au-lait spots, skeletal manifestations primarily involving vertebrae, central and peripheral nervous manifestations, and other associated abnormalities with increased risk of malignancy. The authors analysed the radiologic findings of 18 cases of patients with neurofibromatosis who visited Pusan Kosin Medical Center and Taegu Dongsan Medical Center during the last five years. All were proven by surgery, biopsy and other diagnostic criteria. The results obtained were as follows: 1. The male to female ratio was 11:7 and the age ranged from 11 months to 51 years. 2. All the cases fulfilled the diagnostic criteria of Crowe and associates. 3. Bone manifestations were present in 44% of the cases. The other radiologic findings were intrathoracic meningocele, bilateral acoustic neurinomas, mediastinal or chest wall mass shadows, and peripheral soft tissue masses. 4. One of the soft tissue masses was proved to be malignant.

  11. Radiological imaging of the kidney

    Energy Technology Data Exchange (ETDEWEB)

    Quaia, Emilio (ed.) [Trieste Univ. Ospedale di Cattinara (Italy). Ist. Radiologia

    2011-07-01

    This book provides a unique and comprehensive analysis of the normal anatomy and pathology of the kidney and upper urinary tract from the modern diagnostic imaging point of view. The first part is dedicated to the embryology and normal radiological anatomy of the kidney and anatomic variants. The second part presents in detail all of the imaging modalities which can be employed to assess the kidney and the upper urinary tract, including ultrasound, computed tomography, magnetic resonance imaging, and positron emission tomography. Patient preparation and investigation protocols are accurately described, and the principal fields of application of each imaging modality are clearly highlighted. The entire spectrum of kidney pathologies is then presented in a series of detailed chapters. Each pathology is illustrated by high-quality images obtained with state of the art equipment and the most advanced imaging modalities, as well as by figures showing macroscopic and microscopic specimens. The latest innovations in interventional radiology, biopsy procedures, and parametric and molecular imaging are also described, as is the relationship between contrast media and kidney function. This book will be of great interest to all radiologists, oncologists, and urologists who are involved in the management of kidney pathologies in their daily clinical practice. (orig.)

  12. Radiological evaluation of spontaneous pneumoperitoneum

    International Nuclear Information System (INIS)

    Kim, H. S.; Kim, J. D.; Rhee, H. S.

    1982-01-01

    112 cases of spontaneous penumoperitoneum, the causes of which were confirmed by clinical and surgical procedure at Presbyterian Medical Center from January, 1977 to July, 1981 were reviewed radiologically. The results were as follows: 1. Perforation of duodenal ulcer (46/112: 41.1%), stomach ulcer (22/112: 19.6%), and stomach cancer (11/112: 9.8%) were the three most common causes of spontaneous penumoperitoneum. These were 70.5% of all causes. 2. The most common site of free gas was both subdiaphragmatic areas (46: 41.1%). Others were Rt. subdiaphragmatic only (31: 27.7%), both subdiaphragmatic with subhepatic (16: 14.3%), Rt. subdiaphragmatic with subhepatic (7: 6.2%), Rt. subdiaphragmatic only (5: 4.4%), diffuse in abdomen (4: 3.6%), and subhepatic only (3: 2.7%). So 92.0% (103/112) were located in RUQ. 3. The radiological shape of free gas was classified: crescent (52: 46.4%) of small amount; half-moon (21: 18.8%) of moderate amount; large or diffuse (39: 34.8%) of large amount.4. The age between 31 and 60 occupied 69.1% (77/112), and male was predominant (5.2 times). 5. The patient's position showing free air most frequently was erect

  13. Informatics in radiology: web-based preliminary reporting system for radiology residents with PACS integration.

    Science.gov (United States)

    O'Connell, Timothy; Chang, Debra

    2012-01-01

    While on call, radiology residents review imaging studies and issue preliminary reports to referring clinicians. In the absence of an integrated reporting system at the training sites of the authors' institution, residents were typing and faxing preliminary reports. To partially automate the on-call resident workflow, a Web-based system for resident reporting was developed by using the free open-source xAMP Web application framework and an open-source DICOM (Digital Imaging and Communications in Medicine) software toolkit, with the goals of reducing errors and lowering barriers to education. This reporting system integrates with the picture archiving and communication system to display a worklist of studies. Patient data are automatically entered in the preliminary report to prevent identification errors and simplify the report creation process. When the final report for a resident's on-call study is available, the reporting system queries the report broker for the final report, and then displays the preliminary report side by side with the final report, thus simplifying the review process and encouraging review of all of the resident's reports. The xAMP Web application framework should be considered for development of radiology department informatics projects owing to its zero cost, minimal hardware requirements, ease of programming, and large support community.

  14. Radiation Protection in Paediatric Radiology

    International Nuclear Information System (INIS)

    2012-01-01

    Over the past decade and a half, special issues have arisen regarding the protection of children undergoing radiological examinations. These issues have come to the consciousness of a gradually widening group of concerned professionals and the public, largely because of the natural instinct to protect children from unnecessary harm. Some tissues in children are more sensitive to radiation and children have a long life expectancy, during which significant pathology can emerge. The instinct to protect children has received further impetus from the level of professional and public concern articulated in the wake of media responses to certain publications in the professional literature. Many institutions have highlighted the need to pay particular attention to the special problems of protecting paediatric patients. The International Commission on Radiological Protection has noted it and the IAEA's General Safety Requirements publication, Radiation Protection and Safety of Radiation Sources: International Basic Safety Standards (BSS), requires it. This need has been endorsed implicitly in the advisory material on paediatric computed tomography scanning issued by bodies such as the US Food and Drug Administration and the National Cancer Institute in the United States of America, as well as by many initiatives taken by other national and regional radiological societies and professional bodies. A major part of patient exposure, in general, and paediatric exposure, in particular, now arises from practices that barely existed two decades ago. For practitioners and regulators, it is evident that this innovation has been driven both by the imaging industry and by an ever increasing array of new applications generated and validated in the clinical environment. Regulation, industrial standardization, safety procedures and advice on best practice lag (inevitably) behind industrial and clinical innovations. This Safety Report is designed to consolidate and provide timely advice on

  15. Accounting for biological effectiveness in radiological protection

    International Nuclear Information System (INIS)

    Dennis, J.A.

    1989-01-01

    Relative biological effectiveness (RBE) presents a practical problem to radiological protection when attempts are made to ensure that the assessed risks from different types of radiation and different modes of exposure to radiation are commensurate with one another. Unfortunately, the theoretical understanding of RBE is still in the stage of competing explanations and hypotheses. Furthermore, the division of the concept of dose equivalent into a set of concepts for risk assessment and another set for measurement and control has introduced conflicting requirements of a practical nature that are difficult to resolve. Many of those working in radiobiology and radiation protection have perceived the need to increase the quality factors for photon and neutron radiations. It may be more reasonable to change the quality factors for neutrons than for other radiations. The advantages and disadvantages of different methods for accommodating such changes within the dose-equivalent concepts are to be examined. The method of accommodating such a change that has the least practical disadvantages is to increase the quality factors for all secondary particles produced in tissue by neutron radiations by a constant factor. The only disadvantage would be the perception that the quality factors for these secondary particles were not treated in a consistent fashion for all types of ionising radiation. (author)

  16. Radiological findings of congenital urethral valves

    International Nuclear Information System (INIS)

    Yeon, Kyung Mo; Kook, Shin Ho

    1990-01-01

    Congenital urethral valve is the common cause of hydronephrosis in newborn infants and the most common cause of bladder outlet obstruction in male children. We reviewed and analysed radiological findings and associated anomalies of 16 cases of congenital urethral valve which were examined during the period from January 1985 to December 1989. The most frequent age was under one year old (56%). The main symptoms were urinary dribbing (37.5%), weak stream (25%) and urinary frequency and incontinence (25%). Anterior urethral valve (AUV) was 5 cases (31%) and posterior urethral valve (PUV) was 11 cases(69%), in which 10 cases were Type I and one case was Type III. Bladder wall thickening was seen in all cases and its severity was partly correlated with the degree of vesicoureteral reflux (VUR). VUR was observed in 12 cases (75%), and relatively severe in older age group. The degree of VUR was milder in AUV than PUV. Hydronephrosis was more severe in PUV than in anterior one, and its degree was correlated with the severity of VUR. Associated anomalies were ectopic urethral opening (2 cases), PDA (1 case), congenital megacolon (1 case) and patent urachus (1 case) in PUV. So early diagnosis and treatment of congenital urethral valve is essential to the prevention of renal damage

  17. Criteria and suspension levels in diagnostic radiology

    International Nuclear Information System (INIS)

    Malone, J.; Baldelli, P.; Balter, S.; Bischof, N.; Bosmans, H.; Dowling, A.; Edyvean, S.; Gallagher, A.; Faulkner, K.; Horner, K.; Malone, L.; McLean, I. D.; O'Connor, U.; Schreiner, A.; Vassileva, J.; Vano, E.; Zoetelief, J.

    2013-01-01

    The EC (European Council) Directive on radiation protection of patients requires that criteria for acceptability of equipment in diagnostic radiology, nuclear medicine and radiotherapy be established throughout the member states. This study reviews the background to this requirement and to its implementation in practice. It notes and considers parallel requirements in the EC medical devices directive and International Electrotechnical Commission standards that it is also important to consider and that both sets of requirements should ideally be harmonised due to the global nature of the equipment industry. The study further reviews the types of criteria that can be well applied for the above purposes, and defines qualitative criteria and suspension levels suitable for application. Both are defined and relationships with other acceptance processes are considered (including acceptance testing at the time of purchase, commissioning and the issue of second-hand equipment). Suspension levels are divided into four types, A, B, C and D, depending on the quality of evidence and consensus they are based on. Exceptional situations involving, for example, new or rapidly evolving technology are also considered. The publication and paper focuses on the role of the holder of the equipment and related staff, particularly the medical physics expert and the practitioner. Advice on how the criteria should be created and implemented is provided for these groups and how this might be coordinated with the supplier. Additional advice on the role of the regulator is provided. (authors)

  18. 2015 RAD-AID Conference on International Radiology for Developing Countries: The Evolving Global Radiology Landscape.

    Science.gov (United States)

    Kesselman, Andrew; Soroosh, Garshasb; Mollura, Daniel J

    2016-09-01

    Radiology in low- and middle-income (developing) countries continues to make progress. Research and international outreach projects presented at the 2015 annual RAD-AID conference emphasize important global themes, including (1) recent slowing of emerging market growth that threatens to constrain the advance of radiology, (2) increasing global noncommunicable diseases (such as cancer and cardiovascular disease) needing radiology for detection and management, (3) strategic prioritization for pediatric radiology in global public health initiatives, (4) continuous expansion of global health curricula at radiology residencies and the RAD-AID Chapter Network's participating institutions, and (5) technologic innovation for recently accelerated implementation of PACS in low-resource countries. Published by Elsevier Inc.

  19. Diagnosis of radiological security of installations

    International Nuclear Information System (INIS)

    Herrera V, L.

    1991-01-01

    The objective of this work is to discuss the diagnosis of the radiological safety of nuclear or radioactive facilities. It was concluded that the one diagnoses like discipline of the radiological safety is susceptible of being represented, taught and programmable in computer and useful systems as preventive tool and of inspection

  20. Radiology and the law in South Africa

    International Nuclear Information System (INIS)

    Muller, C.J.B.

    1978-01-01

    In terms of regulations gazetted in 1973, the Department of Health has control of the practice of medical radiology in South Africa. The regulations and the rules of the South African Medical and Dental Council that apply to radiology are discussed, and the legal position of workers is noted

  1. Radiology Aide. Instructor Key [and] Student Manual.

    Science.gov (United States)

    Hartwein, Jon; Dunham, John

    This manual can be used independently by students in secondary health occupations programs or by persons receiving on-the-job training in a radiology department. The manual includes an instructor's key that provides answers to the activity sheets and unit evaluations. The manual consists of the following five units: (1) orientation to radiology;…

  2. Sedation practice among Nigerian radiology residents | Omisore ...

    African Journals Online (AJOL)

    Background: Providing safe and effective sedation to patients, especially those with multiple medical problems, can be challenging for radiology residents and fellows. This study aimed to determine knowledge, attitude and practice of Nigerian radiology residents concerning sedation. Keywords: anaesthetist, guidelines ...

  3. Curricular Guidelines for Dental Auxiliary Radiology.

    Science.gov (United States)

    Journal of Dental Education, 1981

    1981-01-01

    AADS curricular guidelines suggest objectives for these areas of dental auxiliary radiology: physical principles of X-radiation in dentistry, related radiobiological concepts, principles of radiologic health, radiographic technique, x-ray films and intensifying screens, factors contributing to film quality, darkroom, and normal variations in…

  4. West African Journal of Radiology: Editorial Policies

    African Journals Online (AJOL)

    Focus and Scope. The West African Journal of Radiology is the official publication of Association of Radiologists of West Africa. The Association was formed in the year 1963 while the Journal of West African Radiology was officially lunched in 1982. Membership consists of diagnostic, therapy radiologists, interventional ...

  5. Radiological health aspects of uranium milling

    International Nuclear Information System (INIS)

    Fisher, D.R.; Stoetzel, G.A.

    1983-05-01

    This report describes the operation of conventional and unconventional uranium milling processes, the potential for occupational exposure to ionizing radiation at the mill, methods for radiological safety, methods of evaluating occupational radiation exposures, and current government regulations for protecting workers and ensuring that standards for radiation protection are adhered to. In addition, a survey of current radiological health practices is summarized

  6. Radiation protection during radiological examinations of children

    International Nuclear Information System (INIS)

    Claus, D.; Gillet, R.; Wambersie, A.

    The dose delivered to children during radiological examinations were assessed and their variations compared with an experimental model. It is shown how to make good radiological examinations limiting the dose delivered to children and reducing the hazard to the medical staff [fr

  7. Role of radiology in occupational medicine

    International Nuclear Information System (INIS)

    Vehmas, T.

    2004-01-01

    This review discusses the contribution of radiology to occupational medicine as well as work-related problems in radiology dept.s. Research issues are emphasized. Radiology has been used especially when diagnosing occupational respiratory and locomotive system problems and solvent-induced encephalo- and hepatopathy. The aim of research in these areas is usually to characterize occupational diseases and to identify physico-chemical hazards in the work place by comparing between groups of workers and non-exposed controls. Radiological imaging allows an objective characterization of the disease, and it may clarify the pathogenesis of the process and provide a useful epidemiological tool. Advanced statistical methods are often needed to adjust analyses for confounding variables. As the diagnostic requirements are increasing, more sensitive and sophisticated radiological methods, such as high-resolution computed tomography, magnetic resonance imaging and magnetic resonance spectroscopy, may be required for the early recognition of occupational health risks. This necessitates good cooperation between occupational health units and well-equipped imaging dept.s. Considering occupational problems in radiology departments, the increasing use of digital radiology requires ergonomic measures to control and prevent locomotive problems caused by work with computers. Radiation protection measures are still worth concern, especially in interventional radiology

  8. Hepatobiliary rhabdomyosarcoma in children: diagnostic radiology

    International Nuclear Information System (INIS)

    Roebuck, D.J.; Yang Weitse; Lam, W.W.M.; Stanley, P.

    1998-01-01

    Rhabdomyosarcoma (RMS) occurs infrequently in the liver and biliary tree. Although the radiological diagnosis may be simple when the tumour involves the extrahepatic bile ducts, no specific imaging features are known for hepatic RMS. We present four cases and discuss the role of diagnostic radiology in the management of this tumour. (orig.)

  9. Nevada Test Site Radiological Control Manual

    Energy Technology Data Exchange (ETDEWEB)

    Radiological Control Managers' Council - Nevada Test Site

    2009-10-01

    This document supersedes DOE/NV/11718--079, “NV/YMP Radiological Control Manual,” Revision 5 issued in November 2004. Brief Description of Revision: A complete revision to reflect the recent changes in compliance requirements with 10 CFR 835, and for use as a reference document for Tenant Organization Radiological Protection Programs.

  10. Nevada Test Site Radiological Control Manual

    International Nuclear Information System (INIS)

    2009-01-01

    This document supersedes DOE/NV/11718--079, 'NV/YMP Radiological Control Manual,' Revision 5 issued in November 2004. Brief Description of Revision: A complete revision to reflect the recent changes in compliance requirements with 10 CFR 835, and for use as a reference document for Tenant Organization Radiological Protection Programs.

  11. Radiological pulmonary manifestations of acquired immunodeficiency syndrome

    International Nuclear Information System (INIS)

    Marchiori, Edson; Melo, Alessandro Severo Alves de; Ossa, Alfonso Jaramillo

    1999-01-01

    In this article are reviewed the principal radiologic manifestations of inflammatory and tumoral diseases the compromise the lungs of patients with acquired immunodeficiency syndrome. In the group of inflammatory diseases the radiologic aspects of pneumocystosis, cytomegalovirus disease, cryptococcosis, tuberculosis and bacterial pneumonias are emphasized. In the neoplasic diseases' group the aspects of lymphoma and Kaposi's sarcoma are specially presented. (author)

  12. West African Journal of Radiology: Submissions

    African Journals Online (AJOL)

    Author Guidelines. The West African Journal of Radiology (WAJR) is a publication and the official organ of the Association of Radiologists of West Africa. It is enlisted on AJOL (African Journals on-line). The Journal accepts for publication, original work in the science and technology of radiology, radiotherapy allied subjects, ...

  13. Radiological assistance program: Region I. Part I

    International Nuclear Information System (INIS)

    Musolino, S.V.; Kuehner, A.V.; Hull, A.P.

    1985-01-01

    The purpose of the Radiological Assistance Program (RAP) is to make DOE resources available and provide emergency assistance to state and local agencies in order to control radiological hazards, protect the public health and safety, and minimize the loss of property. This plan is an integral part of a nationwide program of radiological assistance established by the US DOE, and is implemented on a regional basis. The Brookhaven Area Office (BHO) Radiological Assistance Program is applicable to DOE Region I, which consists of the New England States, New York, New Jersey, Pennsylvania, Delaware, Maryland and the District of Columbia. The BHO RAP-1 has been developed to: (a) ensure the availability of an effective radiological assistance capability to ensure the protection of persons and property; (b) provide guidelines to RAP-1 Team personnel for the evaluation of radiological incidents and implementation of corrective actions; (c) maintain liaison with other DOE installations, Federal, State and local organizations which may become involved in radiological assistance operations in Region I; and (d) encourage development of a local capability to cope with radiological incidents

  14. Radiological health aspects of uranium milling

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, D.R.; Stoetzel, G.A.

    1983-05-01

    This report describes the operation of conventional and unconventional uranium milling processes, the potential for occupational exposure to ionizing radiation at the mill, methods for radiological safety, methods of evaluating occupational radiation exposures, and current government regulations for protecting workers and ensuring that standards for radiation protection are adhered to. In addition, a survey of current radiological health practices is summarized.

  15. Clinical, radiological and imunogenectical study in patients with Reiter's Syndrome

    International Nuclear Information System (INIS)

    Souza Meirelles, E. de.

    1987-01-01

    This study puspose was to investigate the clinical, radiological and immunogenetical parameters from a brazilian Reiter's Syndrome population. Twenty Reiter's Syndrome patients from ''Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo'' were prospectivelly studied in their demographical (sex, race, age at study, age at disease onset and disease duration), epidemiological (family history), clinical (general, articular, mucocutaneous, genitourinary, ocular and intestinal manifestations besides functional capacity at study), radiological (sacro-iliitis, spondylitis and calcaneal spur) and immunogenetical (HLA loci A, B and DR typing). The technique employed in the 61 aloantigens from loci HLA A (17), B (34) and DR (10) typing was Terasaki microlymphocitotoxicity modified by Danilovs, had being performed in the ''Laboratorio de Imunogenetica da Faculdade de Medicina da Universidade de Sao Paulo''. We concluded that the clinical, radiological and immunogenetical Reiter's Syndrome expression in the brazilian population is similar to the others north american or european already studied populations and that the probability of one brazilian HLA B27 positie individual to develop Reiter's Syndrome is 19 fold larger when compared to one brazilian HLA B27 negative individual. (author) [pt

  16. Radiological Dispersion Devices: are we prepared?

    International Nuclear Information System (INIS)

    Sohier, Alain; Hardeman, Frank

    2006-01-01

    Already before the events of September 11th 2001 concern was raised about the spread of orphan sources and their potential use in Radiological Dispersion Devices by terrorist groups. Although most of the simulated scenarios foresee a rather limited direct health impact on the population, the affected region would suffer from the indirect consequences such as social disruption, cleanup requirements and economic costs. The nature of such a radiological attack would anyway be different compared to conventional radiological accidents, basically because it can happen anywhere at any time. Part of the response resides in a general preparedness scheme incorporating attacks with Radiological Dispersion Devices. Training of different potential intervention teams is essential. The response would consist of a prioritised list of actions adapted to the circumstances. As the psychosocial dimension of the crisis could be worse than the purely radiological one, an adapted communication strategy with the public aspect would be a key issue

  17. [Modern education in histopathology and radiology].

    Science.gov (United States)

    Maas, Mario; Mooi, Wolter J

    2011-01-01

    Radiological and pathological imaging constitute an essential part of modern medicine. Furthermore, by showing microscopic and radiological images many pathological processes can be made clearer and easier to understand. This has consequences for education. Many medical faculties are switching partly or entirely to the use of 'virtual microscopy', which amounts to studying digitalised histological preparations with the help of software that shows striking similarities to Google Earth. The requesting physician of the future will be able to make the most effective use of radiological tests when he or she has been trained in 'radiological thinking'. Students must realise that radiology depends not just on looking, as one might at holiday snaps, but more especially on interpreting what is seen. By using modern aids, it is possible to test the listeners' knowledge during lectures as a basis for the rest of the presentation. Collections of educational images are now widely available, including on the Internet.

  18. Medical rescue for nuclear or radiologic emergencies

    International Nuclear Information System (INIS)

    Chen Xiaohua; Nie Suifeng

    2011-01-01

    Nuclear or radiologic emergencies are defined as incidents that are caused by radioactive substance or by other sources of radiation and can pose a serious hazard to public health. In case of nuclear or radiologic emergencies, radioactive rays will damage the human body and bring about psychological and mental stress, resulting in a series of social psychological effects. The key to medical rescue for nuclear or radiologic emergencies is to take effective measures which can minimize the body harm resulting from nuclear or radiologic emergencies and maintain social stability. This article reviews the personnel protection, on-the-spot salvage, treatments of various harm, and prevention of public psychological effect following nuclear or radiologic emergencies. (authors)

  19. Radiological diagnosis of thoracic Hodgkin- and Non-Hodgkin lymphomas

    International Nuclear Information System (INIS)

    Uffmann, M.; Schaefer-Prokop, C.

    2004-01-01

    Malignant lymphomas belong to the most important malignant diseases in western countries with an increasing incidence of Non-Hodgkin lymphoma. The thorax is the location of primary manifestation especially in patients with Hodgkin's disease. Progression of disease and therapy associated complications are frequently located in the chest. Based on morphological imaging criteria the two types of lymphoma cannot be differentiated, helpful for differentiation is, however, the way of disease spread. Primary and secondary thoracic lymphoma represent a diagnostic challenge in radiology: the patterns are variable in radiography as well as in computed tomography and alter under therapy. Radiological studies, especially CT, are an integral part of the staging process. MRI is considered advantageous for chest wall disease. PET as functional imaging technique has its proven role for staging of high grade lymphomas, the combination of functional and morphological information provided by PET-CT will become the first diagnostic standard in the future. (orig.) [de

  20. Chemical and radiological vulnerability assessment in urban areas

    Directory of Open Access Journals (Sweden)

    Stojanović Božidar

    2006-01-01

    Full Text Available Cities and towns are faced with various types of threat from the extraordinary events involving chemical and radiological materials as exemplified by major chemical accidents, radiological incidents, fires, explosions, traffic accidents, terrorist attacks, etc. On the other hand, many sensitive or vulnerable assets exist within cities, such as: settlements, infrastructures, hospitals, schools, churches, businesses, government, and others. Besides emergency planning, the land use planning also represents an important tool for prevention or reduction of damages on people and other assets due to unwanted events. This paper considers development of method for inclusion vulnerability assessment in land use planning with objective to assess and limit the consequences in cities of likely accidents involving hazardous materials. We made preliminary assessment of criticality and vulnerability of the assets within Belgrade city area in respect to chemical sites and transportation roads that can be exposed to chemical accidents, or terrorist attacks.