WorldWideScience

Sample records for non-real property radiological

  1. 7 CFR 767.102 - Leasing non-real estate inventory property.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 7 2010-01-01 2010-01-01 false Leasing non-real estate inventory property. 767.102 Section 767.102 Agriculture Regulations of the Department of Agriculture (Continued) FARM SERVICE AGENCY... Property § 767.102 Leasing non-real estate inventory property. The Agency does not lease non-real estate...

  2. Review of processes for the release of DOE real and non-real property for reuse and recycle

    Energy Technology Data Exchange (ETDEWEB)

    Ranek, N.L.; Kamboj, S.; Hensley, J.; Chen, S.Y.; Blunt, D.

    1997-11-01

    This report summarizes the underlying historical and regulatory framework supporting the concept of authorizing release for restricted or unrestricted reuse or recycle of real and non-real U.S. Department of Energy (DOE) properties containing residual radioactive material. Basic radiation protection principles as recommended by the International Commission on Radiological Protection are reviewed, and international initiatives to investigate radiological clearance criteria are reported. Applicable requirements of the U.S. Nuclear Regulatory Commission, the Environmental Protection Agency, DOE, and the State of Washington are discussed. Several processes that have been developed for establishing cleanup and release criteria for real and non-real DOE property containing residual radioactive material are presented. Examples of DOE real property for which radiological cleanup criteria were established to support unrestricted release are provided. Properties discussed include Formerly Utilized Sites Remedial Action Project sites, Uranium Mill Tailings Remedial Action Project sites, the Shippingport decommissioning project, the south-middle and south-east vaults in the 317 area at Argonne National Laboratory, the Heavy Water Components Test Reactor at DOE`s Savannah River Site, the Experimental Boiling Water Reactor at Argonne National Laboratory, and the Weldon Spring site. Some examples of non-real property for which DOE sites have established criteria to support unrestricted release are also furnished. 10 figs., 4 tabs.

  3. Contrast media properties in interventional radiology

    International Nuclear Information System (INIS)

    Laerum, F.; Enge, I.

    1989-01-01

    Potential hazards of the use of contrast media (CM) in interventional radiology are analyzed by looking into each procedure regarding interactions of CM with pharmaceutical additives, with technical equipment possibly affecting CM stability, and special local or systemic demands related to the procedure. Also the impact of these factors upon the physiological mechanisms are taken into account. (H.W.). 32 refs.; 4 figs.; 2 tabs

  4. 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.)

  5. 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

  6. Investigation of radiological properties and water equivalency of PRESAGE dosimeters.

    Science.gov (United States)

    Gorjiara, Tina; Hill, Robin; Kuncic, Zdenka; Adamovics, John; Bosi, Stephen; Kim, Jung-Ha; Baldock, Clive

    2011-04-01

    PRESAGE is a dosimeter made of polyurethane, which is suitable for 3D dosimetry in modern radiation treatment techniques. Since an ideal dosimeter is radiologically water equivalent, the authors investigated water equivalency and the radiological properties of three different PRESAGE formulations that differ primarily in their elemental compositions. Two of the formulations are new and have lower halogen content than the original formulation. The radiological water equivalence was assessed by comparing the densities, interaction probabilities, and radiation dosimetry properties of the three different PRESAGE formulations to the corresponding values for water. The relative depth doses were calculated using Monte Carlo methods for 50, 100, 200, and 350 kVp and 6 MV x-ray beams. The mass densities of the three PRESAGE formulations varied from 5.3% higher than that of water to as much as 10% higher than that of water for the original formulation. The probability of photoelectric absorption in the three different PRESAGE formulations varied from 2.2 times greater than that of water for the new formulations to 3.5 times greater than that of water for the original formulation. The mass attenuation coefficient for the three formulations is 12%-50% higher than the value for water. These differences occur over an energy range (10-100 keV) in which the photoelectric effect is the dominant interaction. The collision mass stopping powers of the relatively lower halogen-containing PRESAGE formulations also exhibit marginally better water equivalency than the original higher halogen-containing PRESAGE formulation. Furthermore, the depth dose curves for the lower halogen-containing PRESAGE formulations are slightly closer to that of water for a 6 MV beam. In the kilovoltage energy range, the depth dose curves for the lower halogen-containing PRESAGE formulations are in better agreement with water than the original PRESAGE formulation. Based on the results of this study, the new

  7. Radiological properties of MAGIC normoxic polymer gel dosimetry

    Science.gov (United States)

    Aljamal, M.; Zakaria, A.; Shamsuddin, S.

    2013-04-01

    For a polymer gel dosimeter to be of use in radiation dosimetry, it should display water-equivalent radiological properties. In this study, the radiological properties of the MAGIC (Methacrylic and Ascorbic acid in Gelatin Initiated by Copper) normoxic polymer gels were investigated. The mass density (ρ) was determined based on Archimedes' principle. The weight fraction of elemental composition and the effective atomic number (Zeff) were calculated. The electron density was also measured with 90° scattering angle at room temperature. The linear attenuation coefficient (μ) of unirradiated gel, irradiated gel, and water were determined using Am-241 based on narrow beam geometry. Monte Carlo simulation was used to calculate the depth doses response of MAGIC gel and water for 6MV photon beam. The weight fractions of elements composition of MAGIC gel were close to that for water. The mass density was found to be 1027 ± 2 kg m-3, which is also very close to mass density of muscle tissue (1030 kg m-3) and 2.7% higher than that of water. The electron density (ρe) and atomic number (Zeff) were found to be 3.43 × 1029 e m-3 and 7.105, respectively. The electron density measured was 2.6% greater than that for water. The atomic number was very close to that for water. The prepared MAGIC gel was found to be water equivalent based on the study of element composition, mass density, electron density and atomic number. The linear attenuation coefficient of unirradiated gel was very close to that of water. The μ of irradiated gel was found to be linear with dose 2-40 Gy. The depth dose response for MAGIC gel from a 6 MV photon beam had a percentage dose difference to water of less than 1%. Therefore it satisfies the criteria to be a good polymer gel dosimeter for radiotherapy.

  8. Radiological properties of a wax-gypsum compensator material

    International Nuclear Information System (INIS)

    Plessis, F.C.P. du; Willemse, C.A.

    2005-01-01

    In this paper the radiological properties of a compensator material consisting of wax and gypsum is presented. Effective attenuation coefficients (EACs) have been determined from transmission measurements with an ion chamber in a Perspex phantom. Measurements were made at 80 and 100 cm source-to-skin distance (SSD) for beam energies of 6, 8, and 15 MV, for field sizes ranging from narrow beam geometries up to 40x40 cm 2 , and at measurement depths of maximum dose build-up, 5 and 10 cm. A parametrization equation could be constructed to predict the EAC values within 4% uncertainty as a function of field size and depth of measurement. The EAC dependence on off-axis position was also quantified at each beam energy and SSD. It was found that the compensator material reduced the required thickness for compensation by 26% at 8 MV when compared to pure paraffin wax for a 10x10 cm 2 field. Relative surface ionization (RSI) measurements have been made to quantify the effect of scattered electrons from the wax-gypsum compensator. Results indicated that for 80 cm SSD the RSI would exceed 50% for fields larger than 15x15 cm 2 . At 100 cm SSD the RSI values were below 50% for all field sizes used

  9. 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)

  10. Results of the radiological survey at the Niagara-Mohawk property, Railroad Avenue, Colonie, New York (AL218)

    International Nuclear Information System (INIS)

    Marley, J.L.; Carrier, R.F.

    1987-12-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The Niagara-Mohawk property on Railroad Avenue in Colonie, New York, was the subject of a radiological investigation initiated June 11, 1987. This commercial property is an irregularly shaped lot partially occupied by an electric power substation and associated transmission lines. Portions of the property that were swampy and heavily vegetated were inaccessible to the survey team. There are no buildings on the property. A diagram showing the approximate boundaries and the 15-m grid network established for measurements on the property is shown. The lot included in the radiological survey was /approximately/45 m wide by 246 m deep. Two views of the property are shown. 13 refs., 6 figs., 4 tabs

  11. Radiological survey results for the Peek Street site properties, Schenectady, New York

    International Nuclear Information System (INIS)

    Foley, R.D.; Cottrell, W.D.; Carrier, R.F.

    1992-08-01

    The Peek Street Industrial Facility, located at 425 Peek Street, Schenectady, New York, was operated by the General Electric Company for the Atomic Energy Commission (AEC) between 1947 and 1955. A variety of operations using radioactive materials were conducted at the site, but the main activities were to design an intermediate breeder reactor and to develop a chemical process for the recovery of uranium and plutonium from spent reactor fuel. Nonradioactive beryllium metal was machined on the site for breeder reactor application. The 4.5-acre site was decommissioned and released in October 1955. A radiological survey was conducted by Oak Ridge National Laboratory in November 1989. The survey included scan and grid point measurements of direct radiation levels outdoors on the five properties and inside the factory building, and radionuclide analysis of samples collected from each property. Radionuclide concentrations were determined in outdoor surface and subsurface soil samples from each property and in dust, debris, and structural materials from inside the factory building. Auger holes were logged to assess location and extent of possible subsurface residual soil radioactivity. Radionuclide concentrations were deter-mined in both indoor and outdoor water samples and in selected samples of vegetation. The presence of fixed and transferable surface residual radioactivity was investigated inside the factory building and on discarded materials outdoors on the property. High-volume air samples as well as additional selected indoor and outdoor soil samples were analyzed to determine levels of elemental beryllium

  12. Results of radiological surveys of 20 borough-owned properties, Maywood, New Jersey (MJ050)

    International Nuclear Information System (INIS)

    Foley, R.D.; Carrier, R.F.

    1990-08-01

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally 232 Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of these 20 borough-owned properties Maywood, New Jersey, was conducted during 1987. Survey measurements indicate that none of the properties contained radioactive contamination. Slightly elevated gamma exposure rates in several areas were related to the presence of ashes or to natural materials used in the construction of buildings and asphalt surfaces. 4 refs., 1 figs., 1 tab

  13. Uranium Mill Tailings Remedial Action Program. Partial radiological survey of Shiprock vicinity property SH13 Shiprock, New Mexico, November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    As part of a detailed radiological assessment of the vicinity properties at Shiprock, a comprehensive survey of the vicinity property designated as SH13 was initiated on November 19, 1982. At that time, a single residential structure existed in the northwest corner of the property. The lands surrounding the structure were extensively cluttered with junk. The initial assessment activities were limited to measurements within the residential structure of the ambient external penetrating radiation level at a 1-meter height and analyses of indoor air samples for airborne radioactivity. The external penetrating radiation exposure rate (12.3 μR/h) was less than the 20 μR/h above background limit specified in the EPA Standard (40 CFR 192.12[b][2]). As determined by the air samples, the short-term radon daughter concentration within the structure (0.36 mWL) did not exceed the 0.02 WL (or 20 mWL) limit for average annual concentration including background as specified in the EPA Standard. Further measurements required to completely determine the radiological status of this vicinity property, such as measurements of surface radiation both indoors and outdoors and collection and analyses of soil samples, were planned for the final phase of this assessment. However, that phase of the program was terminated before these measurements were accomplished. Thus, the extent of outdoor radiological contamination is presently unknown, and the evaluation of indoor contamination (if any) is incomplete

  14. 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.

  15. Radiological properties of 3D printed materials in kilovoltage and megavoltage photon beams.

    Science.gov (United States)

    Dancewicz, O L; Sylvander, S R; Markwell, T S; Crowe, S B; Trapp, J V

    2017-06-01

    This study evaluates the radiological properties of different 3D printing materials for a range of photon energies, including kV and MV CT imaging and MV radiotherapy beams. The CT values of a number of materials were measured on an Aquilion One CT scanner at 80kVp, 120kVp and a Tomotherapy Hi Art MVCT imaging beam. Attenuation of the materials in a 6MV radiotherapy beam was investigated. Plastic filaments printed with various infill densities have CT values of -743±4, -580±1 and -113±3 in 120kVp CT images which approximate the CT values of low-density lung, high-density lung and soft tissue respectively. Metal-infused plastic filaments printed with a 90% infill density have CT values of 658±1 and 739±6 in MVCT images which approximate the attenuation of cortical bone. The effective relative electron density RED eff is used to describe the attenuation of a megavoltage treatment beam, taking into account effects relating to the atomic number and mass density of the material. Plastic filaments printed with a 90% infill density have RED eff values of 1.02±0.03 and 0.94±0.02 which approximate the relative electron density RED of soft tissue. Printed resins have RED eff values of 1.11±0.03 and 1.09±0.03 which approximate the RED of bone mineral. 3D printers can model a variety of body tissues which can be used to create phantoms useful for both imaging and dosimetric studies. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  16. 76 FR 39341 - Encouraging New Markets Tax Credit Non-Real Estate Investments; Correction

    Science.gov (United States)

    2011-07-06

    ... DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Part 1 [REG-114206-11] RIN 1545-BK21 Encouraging New Markets Tax Credit Non-Real Estate Investments; Correction AGENCY: Internal Revenue Service... how the new markets tax credit program may be amended to encourage non-real estate investments. FOR...

  17. Geometrical Solutions of Some Quadratic Equations with Non-Real Roots

    Science.gov (United States)

    Pathak, H. K.; Grewal, A. S.

    2002-01-01

    This note gives geometrical/graphical methods of finding solutions of the quadratic equation ax[squared] + bx + c = 0, a [not equal to] 0, with non-real roots. Three different cases which give rise to non-real roots of the quadratic equation have been discussed. In case I a geometrical construction and its proof for finding the solutions of the…

  18. Results of the radiological survey at the former Alba Craft Laboratory site properties, Oxford, Ohio (OXO001)

    International Nuclear Information System (INIS)

    Murray, M.E.; Brown, K.S.; Mathis, R.A.

    1993-03-01

    At the request of the US Department of Energy (DOE), a team from Oak Ridge National Laboratory conducted a radiological survey at the former Alba Craft Laboratory Site Properties, Oxford, Ohio. The survey was performed in July and September of 1992. The purpose of the survey was to determine whether the property was contaminated with radioactive residues, primarily 238 U, from uranium machining operations conducted for National Lead of Ohio, a prime Atomic Energy Commission contractor. The survey included scan measurement of direct radiation levels inside and outside the former laboratory, outdoors on eight properties adjoining the former laboratory, and the city right-of-way adjacent to the surveyed properties. Radionuclide concentrations were determined in outdoor surface and subsurface soil samples taken from each property and the exterior of the laboratory. Fixed surface residual radioactivity was measured inside the laboratory and outside the building. Air samples were collected, direct exposure was measured, and samples were collected to measure transferable radioactivity inside the building. Results of the survey indicate areas where surface and soil contamination level s are above the DOE guidelines for uncontrolled areas

  19. Uranium mill tailings remedial action program. Radiological survey of Shiprock vicinity property SH12, Shiprock, NM, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-04-01

    A comprehensive survey of the vicinity property designated as SH12 was conducted on an intermittent basis from October 27 to November 22, 1982. At the time of the survey, several exhibition halls and concession stands; an auction yard; a race track and rodeo arena with associated stands, shutes, and corrals; and a hogan were located on the property. The surrounding environs were either sparsely covered with arid vegetation or covered with gravel. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air, soil, and other material samples. The radiological assessment indicated elevated levels of radioactivity within only one of the structures. Background levels of radioactivity were indicated within all other structures. The assessment indicated elevated levels of radioactivity at the rodeo arena and nearby shutes and corrals, encompassing about 49,000 ft 2 of land. Radiochemical analysis of the soil sample collected from this general area indicated 23 +- 2 pCi/g for radium, which is in excess of the limit of 5 pCi/g above background, averaged over the first 15 cm of soil below the surface. Elevated levels of radioactivity were also found at the southern end of the west parking lot, encompassing about 7500 ft 2 of land, and at several areas in the southern section of the property, encompassing about 160,000 ft 2 of land. Radiochemical analyses of two of the soil samples collected from the southern section indicated radium concentrations of 43 +- 5 and 42 +- 5 pCi/g of soil, in excess of the limit of 5 pCi/g above background as specified in the EPA Standard. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known

  20. Luminescence properties of common salt (NaCl available in Nigeria for use as accident dosimeter in radiological emergency situation

    Directory of Open Access Journals (Sweden)

    Janet Ayobami Ademola

    2017-04-01

    Full Text Available In the event of a radiological accident or attack, it is important to assess and quantify radiation dose to the population. This could be done using materials in the vicinity that are sensitive to ionizing radiation. Common salt (NaCl is known to be a sensitive thermoluminescence (TL phosphor. Luminescence properties of common salt (NaCl used in Nigeria were investigated using an automated luminescence reader Risø TL/OSL-DA-15, with attention focused more on the Optically Stimulated Luminescence (OSL. Strong radiation-induced TL and OSL signals were observed. The TL peaks occurred at about 100 °C, 240 °C and 280 °C. The dose response of both the TL and OSL signals showed a linear relationship. From the OSL pulse anneal curve with TL curve, a preheat temperature of 190 °C for 10 s was found adequate for the OSL measurements. There was no significant difference in the OSL decay for stimulation temperatures of 100 and 120 °C. Fading experiment over a storage period of 14 days showed about 13 and 3% decrease in the OSL signal of sample 1 and sample 2, respectively. The ratios of measured to given dose for dose recovery test were within ±19% of unity. Within the limit of error the samples could be used as a complementary emergency dosimeter in radiological accident situation.

  1. Uranium mill tailings remedial action program. Radiological survey of Shiprock vicinity property SH03, Shiprock, NM, July-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-04-01

    A comprehensive survey of the vicinity property designated as SH03 was conducted on an intermittent basis from July 26 to November 11, 1982. At the time of the survey, three structures were located on the property - a residential trailer, the main structure, and an old gas pump housing. The lands surrounding the structures were either sparsely covered with arid vegetation or paved. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air, soil, and other material samples. No evidence of radioactive contamination was found inside the trailer. However, the results of the radiological assessment did indicate the occurrence of elevated levels of gamma, surface alpha, and radon daughter radioactivity within the main structure. The short-term radon daughter measurements exceeded the limit of 0.02 Working Level for average annual concentration including background. The assessment also indicated elevated levels of radioactivity in the outdoor environs, encompassing about 32,000 ft 2 of the grounds adjacent to and surrounding the main structure on the east, south, and west sides. The contamination appeared to be due to the presence of unprocessed uranium ore. Analysis of surface soil samples collected from the environs indicated radium concentrations in excess of the limit of 5 pCi/g above background specified in the EPA Standard. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known. Since the surface soil contamination levels exceeded the limits specified in the EPA Standard, remedial action for this vicinity site should be considered

  2. Physicochemical, mineralogical and radiological properties of red mud samples as secondary raw materials

    Directory of Open Access Journals (Sweden)

    Nenadović Snežana S.

    2017-01-01

    Full Text Available The main goal of the presented research was the preliminary investigation of possibility of red mud - Hungarian dump sites Almasfuzito (sample A and Ajka (sample B - application as a pigment or as a raw material for use in the construction materials industry. Also, the aim of this work was the characterization of red mud as industrial waste generated by the Bayer process in the aluminum industry - which may cause environmental problems if appropriate treatment is not carried out. The main mineral phases of both red mud are hematite (Fe2O3, calcite (CaCO3, gibbsite (Al(OH3 and they consists of particles of median particle size 2.1 mm (sample A and 2.5 mm (sample B and have a characteristic red color, which was the reason for its testing for use in the industry of building materials as a pigment for standard concrete mixtures. The radionuclides content in the samples was determined by gamma spectrometry, and the radiological hazards originating from 238U, 232Th, 40K in the samples, were assessed through the radium equivalent activity, and the external radiation hazard index. The absorbed dose rate and the annual effective dose were calculated in accordance with the UNSCEAR 2010 report and the results are presented in this paper. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III 45012 and Grant no. III 45005

  3. Uranium Mill Tailings Remedial Action Program. Partial radiological survey of Shiprock vicinity property SH14 Shiprock, New Mexico, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-06-01

    As part of a detailed radiological assessment of the vicinity properties at Shiprock, a comprehensive survey of the vicinity property designated as SH14 was initiated during October and November 1982. At the time of the survey, vicinity property SH14 consisted of about 20 acres of open lands to the northeast of, and directly across the San Juan River from, the upper tailings pile at Shiprock. The lands consisted of a sandy soil, sparsley covered with trees and other vegetation. The partial assessment activities included determination of surface radiation levels on about a 2-meter grid spacing through direct instrument surveys and analysis of a soil sample collected from the area. The partial radiological assessment indicated elevated levels of radioactivity at several general areas within the open lands. Radiochemical analyses of the soil sample collected from one of these areas indicated a radium concentration of 18 +- 2 pCi/g, which is in excess of the limit of 5 pCi/g above background, averaged over the first 15 cm of soil below the surface, as specified in the EPA Standard (40 CFR 192). Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known. Further measurements required to completely determine and accurately report the radiological status of this vicinity property, including additional direct instrument surveys, collection and analyses of soil samples, and the establishment of a 200-ft grid system, were planned for the final phase of this assessment. However, that phase of the program was cancelled before these measurements were accomplished. The total extent of the radiological contamination of vicinity property SH14 is presently unknown. Nonetheless, since the surface soil contamination levels exceeded the limits specified in the EPA Standard, remedial action for this vicinity site should be considered

  4. 76 FR 32882 - New Markets Tax Credit Non-Real Estate Investments

    Science.gov (United States)

    2011-06-07

    ... New Markets Tax Credit Non-Real Estate Investments AGENCY: Internal Revenue Service (IRS), Treasury... proposed regulations modifying the new markets tax credit program to facilitate and encourage investments... claiming the new markets tax credit and businesses in low-income communities relying on the program. This...

  5. 76 FR 39343 - New Markets Tax Credit Non-Real Estate Investments; Correction

    Science.gov (United States)

    2011-07-06

    ... DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Part 1 [REG-101826-11] RIN 1545-BK04 New Markets Tax Credit Non-Real Estate Investments; Correction AGENCY: Internal Revenue Service (IRS... Tuesday, June 7, 2011 (76 FR 32882) modifying the new markets tax credit program to facilitate and...

  6. 76 FR 77454 - New Markets Tax Credit Non-Real Estate Investments; Hearing Cancellation

    Science.gov (United States)

    2011-12-13

    ... DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Part 1 [REG-128224-06] RIN 1545-BF80 New Markets Tax Credit Non-Real Estate Investments; Hearing Cancellation AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Cancellation of notice of public hearing on proposed rulemaking. SUMMARY...

  7. 77 FR 59544 - New Markets Tax Credit Non-Real Estate Investments

    Science.gov (United States)

    2012-09-28

    ... Markets Tax Credit Non-Real Estate Investments AGENCY: Internal Revenue Service (IRS), Treasury. ACTION... communities. The final regulations affect taxpayers claiming the new markets tax credit and businesses in low... 45D(a)(1), a taxpayer may claim a new markets tax credit on certain credit allowance dates described...

  8. 76 FR 32880 - Encouraging New Markets Tax Credit Non-Real Estate Investments

    Science.gov (United States)

    2011-06-07

    ... proceeds is affiliated with the primary CDE or the qualified equity investment investors; and (iii) the... be a non-profit entity or the affiliate of a non-profit entity? B. Encouraging Equity Investments in... Encouraging New Markets Tax Credit Non-Real Estate Investments AGENCY: Internal Revenue Service (IRS...

  9. Uranium mill tailings remedial action program. Radiological survey of Shiprock vicinity property SH01, Shiprock, NM, August-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-04-01

    A comprehensive survey of the vicinity property designated as SH01 was conducted on an intermittent basis from August 23 to November 11, 1982. At the time of the survey, three structures were located on the property - two residential structures and a residential trailer. In addition to the three residences, the frame from a former truck scale was still on the property. The lands surrounding the structures and former truck scale were sparsely covered with vegetation. The assessment activities included determination of indoor and outdoor surface radiation levels through direct instrument surveys and analysis of air and soil samples. No evidence of radioactive contamination was found inside the structures, although elevated levels of radioactivity due to proximity to or shine from contaminated soils were indicated within all. The short-term radon daughter measurements did not exceed the limit of 0.02 Working Level for average annual concentration including background, as specified in the EPA Standard 40 CFR 192. The assessment indicated elevated levels of radioactivity in the outdoor environs, encompassing about 32,000 ft 2 (2900 m 2 ) of land surrounding, and north of, the former truck scale. Analysis of a surface soil sample collected from the environs indicated a radium concentration considerably in excess of the limit of 5 pCi/g above background specified in the EPA Standard. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known. Since the surface soil contamination level exceeded the limit specified in the EPA Standard, remedial action for this vicinity site should be considered

  10. Isotopic composition and radiological properties of uranium in selected fuel cycles

    International Nuclear Information System (INIS)

    Fleischman, R.M.; Liikala, R.C.

    1975-04-01

    Three major topic areas are discussed: First, the properties of the uranium isotopes are defined relative to their respective roles in the nuclear fuel cycle. Secondly, the most predominant fuel cycles expected in the U. S. are described. These are the Light Water Reactor (LWR), High Temperature Gas Cooled Reactor (HTGR), and Liquid Metal Fast Breeder Reactor (LMFBR) fuel cycles. The isotopic compositions of uranium and plutonium fuels expected for these fuel cycles are given in some detail. Finally the various waste streams from these fuel cycles are discussed in terms of their relative toxicity. Emphasis is given to the high level waste streams from reprocessing of spent fuel. Wastes from the various fuel cycles are compared based on projected growth patterns for nuclear power and its various components. (U.S.)

  11. 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

  12. 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

  13. 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.

  14. 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.

  15. 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).

  16. 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

  17. 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)

  18. 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

  19. 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)

  20. 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 ...

  1. 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

  2. Urandium mill tailings remedial action program. Radiological survey of Shiprock vicinity property SH06, Shiprock, New Mexico, August-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    The radiological assessment conducted at the Shiprock vicinity property SH06 by the ANL Radiological Survey Group indicated background levels of radioactivity within the residential structure. Radiation exposure rates were less than the 20 μR/h above background limit specified in the EPA Standard (40 CFR 192.12[b][2]). Short-term radon daughter measurements did not exceed the 0.02 WL (or 20 mWL) limit for average annual concentration including background as specified in the EPA Standard (40 CFR 192.12[b][1]). The assessment indicated elevated levels of radioactivity at several areas in the outside environs. General areas of elevated radioactivity were found over almost the entire frontyard, encompassing about 1300 ft 2 (120 m 2 ), and at the west side of the residence, encompassing about 460 ft 2 (43 m 2 ). Radiochemical analysis of the soil sample collected from the frontyard near the residence indicated a radium concentration of 24 +- 2 pCi/g, which is in excess of the limit of 5 pCi/g above background, averaged over the first 15 cm of soil below the surface, as specified in Section 192.12(a)(1) of the EPA Standard. Elevated levels were also found at a 37-ft 2 (3.4-m 2 ) strip of land along the east property line, and in the backyard, at a small shack encompassing about 21 ft 2 (2.0 m 2 ) of land. From soil sample analyses and the history of the site, the contaminating material appears to be residual radioactive material under the provisions of the Uranium Mill Tailings Radiation Control Act of 1978 in the form of radium-enhanced material (i.e., tailings). Since the surface soil contamination levels exceed the limits specified in the EPA Standard, remedial action for this vicinity site should be considered. 9 references, 4 figures, 5 tables

  3. 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.

  4. An In-Home Digital Network Architecture for Real-Time and Non-Real-Time Communication

    NARCIS (Netherlands)

    Scholten, Johan; Jansen, P.G.; Hanssen, F.T.Y.; Hattink, Tjalling

    2002-01-01

    This paper describes an in-home digital network architecture that supports both real-time and non-real-time communication. The architecture deploys a distributed token mechanism to schedule communication streams and to offer guaranteed quality-ofservice. Essentially, the token mechanism prevents

  5. An In-Home Digital Network Architecture for Real-Time and Non-Real-Time Communication

    NARCIS (Netherlands)

    Scholten, Johan; Jansen, P.G.; Hanssen, F.T.Y.; Hattink, Tjalling

    2002-01-01

    This paper describes an in-home digital network architecture that supports both realtime and non-real-time communication. The architecture deploys a distributed token mechanism to schedule communication streams and to offer guaranteed quality-ofservice. Essentially, the token mechanism prevents

  6. 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)

  7. 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

  8. Radiological assessment and remedial action report for the ''Son of Lansdowne'' property, 186 North Lansdowne Avenue, Lansdowne, Pennsylvania

    International Nuclear Information System (INIS)

    Smith, W.H.; Wynveen, R.A.

    1987-08-01

    This document reports the results of a radiological assessment and remedial action program conducted by Argonne National Laboratory personnel at a radioactively contaminated private residence in Lansdowne, Pennsylvania. The program was conducted on the residence at 186 Lansdowne Avenue. The survey conducted by the ANL personnel indicated that several dozen areas or spots of contamination were present on all floors and the basement of the three-story house. Contamination was found on furniture, carpeting, walls, floors, woodwork, and ceilings. Remedial action undertaken to remove the contamination ranged from scrubbing, to scraping, to shaving of wood, to removal and disposal of items and material that could not be adequately decontaminated. Outdoors, contaminated soil was removed from the backyard, and the driveway was dug up so the contaminated subsurface material could be removed. The remedial action generated quantities of radioactive waste, including four 55-gallon drums and one M-III bin (120 ft 3 ) containing floor tile, concrete, personal items, furniture, floor scrapings, vermiculite absorbed scrub water, and other items. In addition, there were 24 M-III bins containing approximately 112 tons of contaminated soil and rock from the two contaminated areas in the backyard and from the contaminated subsurface of the driveway. 2 refs., 39 figs., 12 tabs

  9. Radiological assessment report for the Lansdowne property, 105-107 East Stratford Avenue, Lansdowne, Pennsylvania, October-December 1984

    Energy Technology Data Exchange (ETDEWEB)

    Wynveen, R.A.; Smith, W.H.; Sholeen, C.M.; Flynn, K.F.

    1985-09-01

    Areas with elevated levels of radioactivity were found throughout both residences, as well as on the surrounding property. Contamination was also found in the garage behind the 105 East structure. The 105 East residence had substantially more contamination than the 107 East residence, as was expected. The chimneys, particularly the rear chimney, from the 105 East residence had extensive contamination, indicating that contaminated materials may have been burned at the site. The high background radiation emanating from this residence made it difficult to establish the relatively lower levels of contamination in the 107 East residence. The property surrounding the 105 East residence was found to have substantial contamination scattered throughout, with the highest level occurring in the backyard. The soil surface contamination seemed to drop markedly (but not entirely) at the property lines. The property surrounding 107 East was found to be less contaminated, although the background radiation emanating from the adjoining area made it difficult to establish the degree of surface or near-surface contamination from surface surveys. Subsurface investigation of the soil surrounding the structure indicated that radium contamination was widespread and extended to a depth of eight feet at some locations. There was evidence that some of this contamination extended onto adjoining properties and may have been transported off the site via subsurface migration. Additionally, analysis of samples from access points in the residence sewer system effluent established that the system was contaminated. 3 refs., 26 figs., 13 tabs.

  10. Radiological assessment report for the Lansdowne property, 105-107 East Stratford Avenue, Lansdowne, Pennsylvania, October-December 1984

    International Nuclear Information System (INIS)

    Wynveen, R.A.; Smith, W.H.; Sholeen, C.M.; Flynn, K.F.

    1985-09-01

    Areas with elevated levels of radioactivity were found throughout both residences, as well as on the surrounding property. Contamination was also found in the garage behind the 105 East structure. The 105 East residence had substantially more contamination than the 107 East residence, as was expected. The chimneys, particularly the rear chimney, from the 105 East residence had extensive contamination, indicating that contaminated materials may have been burned at the site. The high background radiation emanating from this residence made it difficult to establish the relatively lower levels of contamination in the 107 East residence. The property surrounding the 105 East residence was found to have substantial contamination scattered throughout, with the highest level occurring in the backyard. The soil surface contamination seemed to drop markedly (but not entirely) at the property lines. The property surrounding 107 East was found to be less contaminated, although the background radiation emanating from the adjoining area made it difficult to establish the degree of surface or near-surface contamination from surface surveys. Subsurface investigation of the soil surrounding the structure indicated that radium contamination was widespread and extended to a depth of eight feet at some locations. There was evidence that some of this contamination extended onto adjoining properties and may have been transported off the site via subsurface migration. Additionally, analysis of samples from access points in the residence sewer system effluent established that the system was contaminated. 3 refs., 26 figs., 13 tabs

  11. Uranium Mill Tailings Remedial Action Program. Radiological survey of Shiprock vicinity property SH16, Shiprock, New Mexico, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    At the time of the survey, one residential structure was located on the property. The lands surrounding the structure were landscaped with lawn cover and other vegetation. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air and soil samples. No evidence of radioactive contamination was found in the residential structure; background levels of radioactivity were indicated throughout. Radiation exposure rates were less than the 20 μR/h above background limit. Short-term radon daughter measurements did not exceed the 0.02 WL limit for average annual concentration including background. The assessment indicated elevated levels of radioactivity at several areas in the outside environs. Three localized areas, or discrete hot spots, were found within the backyard. A general area of elevated radioactivity was found at the back alleyway, encompassing about 1200 ft 2 . Radiochemical analyses of the soil sample collected from the backyard indicated a radium concentration of 14 +- 1 pCi/g, which is in excess of the limit of 5 pCi/g above background. Analyses of surface soil samples collected at the alleyway from nearly vicinity property sites also indicated radium concentrations in excess of the limit. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known. Remedial action for this vicinity site should be considered

  12. 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

  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. Uranium Mill Tailings Remedial Action Program. Radiological survey of Shiprock vicinity property SH08, Shiprock, New Mexico, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    At the time of the survey, one residential structure was located on the property. The lands surrounding the structure were, for the most part, landscaped with lawn cover and other vegetation. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air and soil samples. No evidence of radioactive contamination was found in the residential structure; background levels of radioactivity were indicated throughout. Radiation exposure rates were less than the 20 μR/h above background limit. Short-term radon daughter measurements did not exceed the 0.02 WL limit for average annual concentration including background. The assessment did indicate elevated levels of radioactivity at a few areas in the outside environs. A general area of elevated radioactivity was found at the west edge of the property, paralleling the roadway and encompassing an area of about 70 ft 2 ; and another general area of contamination was found in the backyard, encompassing about 960 ft 2 , and extending into the alleyway, encompassing a general area of about 1100 ft 2 there. Radiochemical analyses of the soil sample collected from the general area in the backyard indicated a radium concentration of 6.7 +- 0.7 pCi/g, which cannot be confidently interpreted to be below the limit of 5 pCi/g above background, averaged over the first 15 cm of soil below the surface. However, analyses of surface soil samples collected at the alleyway from nearby vicinity property sites indicated radium concentrations in excess of those limits. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known. Remedial action for this vicinity site should be considered

  15. Managing client bandwidth in the presence of both real-time and non real-time network traffic

    OpenAIRE

    WIJNANTS, Maarten; LAMOTTE, Wim

    2008-01-01

    Managing client downstream bandwidth is an issue that is rapidly gaining in importance due to the increasing extent to which multimedia content is being exploited in networked applications. Depending on its characteristics, this multimedia content is exchanged in either a real-time or non real-time manner. In this paper, we present the NIProxy, a network intermediary which introduces different types of intelligence in the transportation network in an attempt to improve the Quality of Experien...

  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. Uranium Mill Tailings Remedial Action Program. Radiological survey of Shiprock vicinity property SH11, Shiprock, New Mexico, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    At the time of the survey, one residential structure used as a business office was located on the property. The lands surrounding the structure were, for the most part, landscaped with lawn cover and other vegetation. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air and soil samples. No evidence of radioactive contamination was found in the residential structure; background levels of radioactivity were indicated throughout. Radiation exposure rates were less than the 20 μR/h above background limit. Short-term radon daughter measurements did not exceed the 0.02 WL limit for average annual concentration including background. The assessment did indicate elevated levels of radioactivity at a few areas in the outside environs. Two discrete hot spots or localized areas were found in the frontyard. A general area of elevated radioactivity was found at the back alleyway encompassing about 1100 ft 2 . Radiochemical analyses of the sample collected from one of the localized areas indicated the presence of natural uranium ore and a radium concentration of 165 +- 17 pCi/g, which is in excess of the limit of 5 pCi/g above background. Analyses of surface soil samples collected at the alleyway from nearby vicinity property sites also indicated radium concentrations in excess of the limits. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is not known. Remedial action for this vicinity site should be considered

  18. 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)

  19. 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

  20. 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.

  1. Radiological assessment of decommissioned nuclear facilities

    International Nuclear Information System (INIS)

    Dickson, H.W.; Cottrell, W.D.

    1976-01-01

    A radiological survey of the former Middlesex Sampling Plant, Middlesex, New Jersey, has been completed. The surveyed property served as a uranium ore sampling plant during the 1940's and early 1950's. It was released for unrestricted use in 1967 following a radiological survey by the Atomic Energy Commission and is now a reserve training center for the U. S. Marine Sixth Motor Transport Battalion. The present survey was undertaken to determine whether the existing radiological status of the property is consistent with current health standards and radiation protection practices. The radiological survey included measurement of residual alpha, beta, and gamma contamination levels, radon and radon daughter concentrations in buildings, external gamma radiation levels on the site and on adjacent property, and radium concentrations in soil on the site and on adjacent property

  2. Uranium Mill Tailings Remedial Action Program. Radiological survey of Shiprock vicinity property SH15, Shiprock, New Mexico, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    At the time of the survey, one residential structure was located on the property. The lands surrounding the structure were landscaped with lawn cover and other vegetation. The lands in the unlandscaped east section contained a large garden plot and a dirt driveway leading to the back easement. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air and soil samples. No evidence of radioactive contamination was found in the residential structure; background levels of radioactivity were indicated throughout. Radiation exposure rates were less than the 20 μR/h above background limit specified in the EPA Standard. Short-term radon daughter measurements did not exceed the 0.02 WL limit for average annual concentration including background as specified in the EPA Standard. The assessment indicated elevated levels of radioactivity in the outside environs. General areas of contamination were found in the backyard, along the back easement and encompassing about 1200 ft 2 of land area there, and extending into the unlandscaped east section, encompassing about 2400 ft 2 there. Several discrete hot spots or localized areas were found within these general areas. Radiochemical analysis of the soil samples collected from the areas indicated radium concentrations of 64 +- 6 and 82 +- 8 pCi/g, which are in excess of the limit of 5 pCi/g above background. Subsurface soil sampling was not conducted, and thus the vertical extent of the radiological contamination is now known. Remedial action for this vicinity site should be considered

  3. 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

  4. 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.

  5. 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 ...

  6. 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

  7. 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.

  8. 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....

  9. 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.)

  10. 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.)

  11. 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.

  12. Processor-in-Loop Control System Design Using a Non-Real-Time Electro-Magnetic Transient Simulator

    Science.gov (United States)

    Chongva, Gregory

    This thesis investigates using processor-in-loop techniques with non-real-time electro-magnetic tran- sient simulation software for designing microcontroller-based systems. The behaviour of a microcon- troller is included in the simulation by directly integrating the target microcontroller into an EMTP co-simulation. Additionally, to assist the design process, the optimization functionality of the EMTP program is extended to the microcontroller algorithm. Since non-realtime simulation does not require specialized test hardware to accurately simulate systems, it is both cheaper and able to be used earlier in the controller design process then hardware-in-loop real-time simulation. A component is created in the PSCAD / EMTDC program to integrate a generic controller running an arbitrary periodic algorithm into an EMTP simulation. The component operation is verified by creating a co-simulation of a three-phase induction motor V / f. speed control. The co-simulation results match the behaviour of the resulting system under a fairly broad range of operating conditions, highlighting the applicability of the technique.

  13. 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

  14. 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,...

  15. 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.

  16. 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.

  17. Formerly utilized MED/AEC sites remedial action program. Radiological survey of the former Watertown arsenal property, Site 34 and Site 41, Watertown, Massachusetts

    International Nuclear Information System (INIS)

    Wynveen, R.A.; Smith, W.H.; Sholeen, C.M.; Justus, A.L.; Flynn, K.F.

    1983-10-01

    During the MED/AEC era, work involving radioactive materials was conducted at various sites within the arsenal complex. Building 34 housed a uranium machine shop, and a portion of Building 41 contained a foundry that was used for uranium work. Information provided by site personnel indicated that only depleted uranium was used in these buildings. Results of radiological analyses of contaminated material found at these sites indicated depleted uranium with uranium-236. Both buildings have been razed. The remnants still in place consist of the concrete floor slabs, access drives, and underground utility service trenches. This area is currently under the control of the Watertown Redevelopment Authority of Watertown, Massachusetts. During the period from June 25 through July 1, 1981, the Argonne National Laboratory (ANL), Occupational Health and Safety Division (OHS) Radiological Survey Group (RSG), conducted a radiological survey of Building Sites 34 and 41 at the direction of the US Department of Energy. Significant levels of contamination were found at 33 locations on the pad of Site 34 and in 5 out of 15 soild corings from the perimeter of the pad. No contamination was found on the pad of Site 41; however, two-thirds of this pad was covered with soil up to 4 ft thick. One of the 14 soil corings taken adjacent to the pad of Site 41 had elevated levels of uranium. Levels of contamination in excess of criteria, as identified in ANSI 13.12 and NRC Guidelines, were found at this site. The analyses of the samples from the sewer access points also revealed uranium and radium-226 anomalies. Therefore, according to NRC guidelines dated July 1982, it must be concluded that they are contaminated

  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. 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

  3. Non-real-time computed tomography-guided percutaneous ethanol injection therapy for heapocellular carcinoma undetectable by ultrasonography

    International Nuclear Information System (INIS)

    Ueda, Kazushige; Ohkawara, Tohru; Minami, Masahito; Sawa, Yoshihiko; Morinaga, Osamu; Kohli, Yoshihiro; Ohkawara, Yasuo

    1998-01-01

    The purpose of this study was to evaluate the feasibility of non-real-time CT-guided percutaneous ethanol injection therapy (PEIT) for hepatocellular carcinoma (HCC, 37 lesions) untreatable by ultrasonography-guided (US)-PEIT. The HCC lesion was localized on the lipiodol CT image with a graduated grid system. We advanced a 21 G or 22 G needle in a stepwise fashion with intermittent localization scans using a tandem method to position the tip of the needle in the lesion. Ethanol containing contrast medium was injected with monitoring scans obtained after incremental volumes of injection, until perfusion of the lesion was judged to be complete. A total of 44 CT-PEIT procedures were performed. The average number of needle passes from the skin to the liver in each CT-PEIT procedure was 2.3, the average amount of ethanol injected was 14.4 ml, and the average time required was 49.3 minutes. Complete perfusion of the lesion by ethanol on monitoring CT images was achieved in all lesions with only a single or double CT-PEIT procedure without severe complication. Local recurrence was detected only in 5 lesions. At present, it is more time-consuming to perform CT-PEIT than US-PEIT because conventional CT guidance is not real-time imaging. However, it is expected that this limitation of CT-PEIT will be overcome in the near future with the introduction of CT fluoroscopy. In conclusion, CT-PEIT should prove to be a feasible, acceptable treatment for challenging cases of HCC undetectable by US. (author)

  4. 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...

  5. 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.

  6. 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

  7. 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.

  8. 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...

  9. 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.

  10. 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.

  11. 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

  12. 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 ...

  13. 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.

  14. 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

  15. 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

  16. 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.

  17. 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.

  18. 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.

  19. 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

  20. 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

  1. 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

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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

  8. 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.

  9. 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.

  10. 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.

  11. 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

  12. 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)

  13. 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

  14. 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

  15. 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

  16. 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.)

  17. 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.

  18. 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

  19. 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)

  20. 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

  1. 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

  2. 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

  3. Uranium Mill Tailings Remedial Action Program. Radiological survey of Shiprock vicinity property SH10, Shiprock, New Mexico, October-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    At the time of the survey, one residential structure was located on the property. The lands surrounding the structure were, for the most part, landscaped with lawn cover and other vegetation. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air and soil samples. No evidence of radioactive contamination was found in the residential structure; background levels of radioactivity were indicated throughout. Radiation exposure rates were less than the 20 μR/h above background limit. Short-term radon daughter measurements did not exceed the 0.02 WL limit for average annual concentration including background. The assessment did indicate elevated levels of radioactivity at several areas in the outside environs. A general area was found along the east edge of the property, paralleling the roadway and encompassing about 24 ft 2 , and two discrete hot spots or localized areas were detected in the southeast corner of the property. Additionally, general areas were found near the southwest corner of the structure, encompassing about 6.8 ft 2 ; to the west of the structure, encompassing about 60 ft 2 ; and at the west edge of the property and alleyway, encompassing about 1400 ft 2 . Radiochemical analyses of the soil sample collected from this area indicated a radium concentration of 19 +- 2 pCi/g, which is in excess of the limit of 5 pCi/g above background. Subsurface soil sampling was not conducted. Remedial action for this vicinity site should be considered

  4. 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

  5. 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.

  6. 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

  7. 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.

  8. 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)

  9. 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 ...

  10. Uranium Mill Tailings Remedial Action Program. Radiological survey of Shiprock vicinity property SH07, Shiprock, New Mexico, September-November 1982

    International Nuclear Information System (INIS)

    Flynn, K.F.; Justus, A.L.; Sholeen, C.M.; Smith, W.H.; Wynveen, R.A.

    1984-05-01

    At the time of the survey, one residential structure was located on the property. The lands surrounding the structure were, for the most part, landscaped with lawn cover and other vegetation. The assessment activities included determination of indoor and outdoor surface radiation levels, for both fixed and removable contamination, through direct instrument and smear (indoor only) surveys; measurement of ambient external penetrating radiation levels at 1-meter heights; and analyses of air and soil samples. No evidence of radioactive contamination was found in the residential structure; background levels of radioactivity were indicated throughout. Radiation exposure rates were less than the 20 μR/h above background limit. Short-term radon daughter measurements did not exceed the 0.02 WL limit for average annual concentration including background. The assessment did indicate elevated levels of radioactivity at several areas in the outside environs. A general area of elevated radioactivity was found in the frontyard and alleyway, encompassing about 2300 ft 2 . Elevated levels were also found in the northwest corner of the property, encompassing about 320 ft 2 , and in the southeast corner, encompassing about 39 ft 2 . An area of elevated radioactivity was found at a backyard slab, constructed of decorative flagstone and encompassing about 160 ft 2 . Radiochemical analyses of the soil sample collected from the southeast corner indicated a radium concentration of 41 +- 5 pCi/g, which is in excess of the limit of 5 pCi/g above background. Analyses of a surface soil sample collected in the alley from an adjacent vicinity property site also indicated a radium concentration in excess of those limits. Subsurface soil sampling was not conducted. Remedial action for this vicinity site should be considered

  11. 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 ...

  12. 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

  13. 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

  14. 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 ...

  15. 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

  16. 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.

  17. 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 ...

  18. 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

  19. 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

  20. 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.

  1. 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)

  2. 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)

  3. 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

  4. 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

  5. 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

  6. 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)

  7. 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

  8. 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

  9. 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)

  10. 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

  11. 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.)

  12. 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

  13. 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.)

  14. 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.

  15. 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

  16. 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)

  17. 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

  18. 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)

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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)

  4. 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

  5. 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)

  6. 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

  7. 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

  8. 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.)

  9. 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.

  10. 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

  11. 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....

  12. 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

  13. 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.

  14. 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

  15. 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

  16. 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...

  17. 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)

  18. 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.

  19. 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

  20. 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.

  1. 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.

  2. 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

  3. 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

  4. Radiological protection of the patient in the diagnostic X-ray

    International Nuclear Information System (INIS)

    Araujo, A.M.C. de

    1983-01-01

    Measures and procedures are given in relation to the radiological protection of the patient in diagnostic radiology. Technical and physical factors of the patient protection are discussed, as radiation beam properties, size of the irradiation field, shieldings, control of the scattered radiation that reaches the imaging record system, films, ecrans and radiographic film processing. General recommendations about the radiation protection of the patient in diagnostic radiology are given. (M.A.) [pt

  5. 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 ...

  6. 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 ...

  7. 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.)

  8. 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

  9. 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 ...

  10. 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

  11. 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

  12. 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

  13. 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...

  14. 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

  15. 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.)

  16. 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

  17. 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

  18. 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.

  19. 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)

  20. 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

  1. 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.

  2. 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.)

  3. 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.

  4. 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.

  5. 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

  6. 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.

  7. 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

  8. 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

  9. 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

  10. 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

  11. A virtual environment for simulation of radiological accidents

    International Nuclear Information System (INIS)

    Silva, Tadeu Augusto de Almeida; Farias, Oscar Luiz Monteiro de

    2013-01-01

    A virtual environment is a computer environment, representative of a subset of the real world, and where models of the real world entities, process and events are included in a virtual (three-dimensional) space. Virtual environments are ideal tools for simulation of certain critical processes, such as radiological accidents, where human beings or properties can suffer irreversible or long term damages. Radiological accidents are characterized by the significant exposure to radiation of specialized workers and general public. The early detection of a radiological accident and the determination of its possible extension are essential factors for the planning of prompt answers and emergency actions. This paper proposes the integration of georeferenced representation of the three-dimensional space and agent-based models, with the objective to construct virtual environments that have the capacity to simulate radiological accidents. The three-dimensional georeferenced representations of space candidates are: 1) the spatial representation of traditional geographical information systems (GIS); 2) the representation adopted by Google Maps®. Adding agents to these spatial representations allow us to simulate radiological accidents, quantify the doses received by members of the public, obtain a possible spatial distribution of people contaminated, estimate the number of contaminated individuals, estimate the impact on the health-network, estimate environmental impacts, generate exclusion zones, build alternative scenarios and train staff to deal with radiological accidents. (author)

  12. 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

  13. 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.

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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.

  19. 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

  20. 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.

  1. 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)

  2. 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.

  3. 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

  4. 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.

  5. 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

  6. 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...

  7. 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

  8. 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

  9. 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,...

  10. 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)

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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.

  18. 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.

  19. 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

  20. 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.

  1. 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

  2. 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

  3. 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.

  4. 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

  5. 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.

  6. 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

  7. 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.

  8. 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)

  9. 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

  10. 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.

  11. 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

  12. 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

  13. [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

  14. 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)

  15. Coping in a calamity: Radiology during the cloudburst at Leh

    Directory of Open Access Journals (Sweden)

    Debraj Sen

    2013-01-01

    Full Text Available The service hospital at Leh is a multispeciality hospital situated at an altitude of 11000 feet above mean sea level. On the nights of 4 and 5 Aug 2010, Leh was struck by a cloudburst leading to mudslides and consequently extensive damage to life and property. Being the only functional hospital, over a period of about 48 hours, 331 casualties were received. 549 casualties were received over the week with 108 admissions, 16 major surgeries and 138 minor surgeries. 178 radiographs, 17 CT scans and 09 ultrasound-colour Doppler examinations were performed on an urgent basis over 48 hours apart from the routine radiological investigations. Apart from chronicling the event, we hope that sharing the unique experience of the Radiology Department in dealing with the large influx of patients would provide an insight into the role of Radiology during the disaster and help in planning and developing management protocols during other calamities.

  16. 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

  17. 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

  18. 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

  19. 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.)

  20. 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.)

  1. 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

  2. Radiological survey results at 1 Shady Lane, Lodi, New Jersey (LJ095)

    International Nuclear Information System (INIS)

    Foley, R.D.; Johnson, C.A.

    1995-07-01

    The US Department of Energy (DOE) conducted remedial action at the Stepan property in Maywood, New Jersey and several vicinity properties in Lodi, New Jersey as part of the Formerly Utilized Sites Remedial Action Program (FUSRAP). These properties are in the vicinity of the DOE-owned Maywood Interim Storage Site (MISS), adjacent to the former Maywood Chemical Works facility. The property at One Shady Lane, Lodi, New Jersey was not one of these vicinity properties but was surveyed by DOE at the request of the owner. At the request of DOE, a team from Oak Ridge National Laboratory conducted a radiological survey at this property. The purpose of the survey, conducted in November 1994, was to confirm whether remedial actions were to be performed on the property in order to be in compliance with the identified Guidelines. The radiological survey included surface gamma scans and gamma readings at 1 meter, and the collection of soil samples for radionuclide analysis. Results of the survey demonstrated that all radiological measurements on the property at One Shady Lane, Lodi, New Jersey, were comparable to background levels in the area, and well within the limits prescribed by DOE radiological guidelines. Based on the results of the radiological survey data, this property does not meet guidelines for inclusion under FUSRAP

  3. Cursory radiological assessment: Battelle Columbus Laboratory Decommissioning and Decontamination Project

    International Nuclear Information System (INIS)

    Smith, W.H.; Munyon, W.J.; Mosho, G.D.; Robinet, M.J.; Wynveen, R.A.

    1988-10-01

    This document reports on the results obtained from a cursory radiological assessment of various properties at the Battelle Columbus Laboratory, Columbia, Ohio. The cursory radiological assessment is part of a preliminary investigation for the Battelle Columbus Laboratory Decommissioning and Decontamination Project. The radiological assessment of Battelle Columbus Laboratory's two sites included conducting interior and exterior building surveys and collecting and analyzing air, sewer system, and soil samples. Direct radiological surveys were made of floor, wall, and overhead areas. Smear surveys were made on various interior building surfaces as well as the exterior building vents. Air samples were collected in select areas to determine concentrations of Rn-222, Rn-220, and Rn-219 daughters, in addition to any long-lived radioactive particulates. Radon-222 concentrations were continuously monitored over a 24-hr period at several building locations using a radon gas monitoring system. The sanitary sewer systems at King Avenue, West Jefferson-North, and West Jefferson-South were each sampled at select locations. All samples were submitted to the Argonne Analytical Chemistry Laboratory for various radiological and chemical analyses. Environmental soil corings were taken at both the King Avenue and West Jefferson sites to investigate the potential for soil contamination within the first 12-inches below grade. Further subsurface investigations at the West Jefferson-North and West Jefferson-South areas were conducted using soil boring techniques. 4 refs., 10 figs., 10 tabs

  4. 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.

  5. 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

  6. 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

  7. ''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

  8. 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

  9. 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.

  10. 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.

  11. 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).

  12. 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)

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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.

  18. 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.)

  19. 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

  20. 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)

  1. 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

  2. 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

  3. 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

  4. 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)

  5. 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 ...

  6. 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

  7. Radiological modeling software for underground uranium mines

    International Nuclear Information System (INIS)

    Bjorndal, B.; Moridi, R.

    1999-01-01

    The Canadian Institute for Radiation Safety (CAIRS) has developed computer simulation software for modeling radiological parameters in underground uranium mines. The computer program, called 3d RAD, allows radiation protection professionals and mine ventilation engineers to quickly simulate radon and radon progeny activity concentrations and potential alpha energy concentrations in complex mine networks. The simulation component of 3d RAD, called RSOLVER, is an adaptation of an existing modeling program called VENTRAD, originally developed at Queen's University, Ontario. Based on user defined radiation source terms and network physical properties, radiological parameters in the network are calculated iteratively by solving Bateman's Equations in differential form. The 3d RAD user interface was designed in cooperation with the Canada Centre for Mineral and Energy Technology (CANMET) to improve program functionality and to make 3d RAD compatible with the CANMET ventilation simulation program, 3d CANVENT. The 3d RAD program was tested using physical data collected in Canadian uranium mines. 3d RAD predictions were found to agree well with theoretical calculations and simulation results obtained from other modeling programs such as VENTRAD. Agreement with measured radon and radon progeny levels was also observed. However, the level of agreement was found to depend heavily on the precision of source term data, and on the measurement protocol used to collect radon and radon progeny levels for comparison with the simulation results. The design and development of 3d RAD was carried out under contract with the Saskatchewan government

  8. 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.

  9. 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

  10. Property (

    CERN Document Server

    Ershov, Mikhail; Kassabov, Martin

    2017-01-01

    The authors introduce and study the class of groups graded by root systems. They prove that if \\Phi is an irreducible classical root system of rank \\geq 2 and G is a group graded by \\Phi, then under certain natural conditions on the grading, the union of the root subgroups is a Kazhdan subset of G. As the main application of this theorem the authors prove that for any reduced irreducible classical root system \\Phi of rank \\geq 2 and a finitely generated commutative ring R with 1, the Steinberg group {\\mathrm St}_{\\Phi}(R) and the elementary Chevalley group \\mathbb E_{\\Phi}(R) have property (T). They also show that there exists a group with property (T) which maps onto all finite simple groups of Lie type and rank \\geq 2, thereby providing a "unified" proof of expansion in these groups.

  11. 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

  12. 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

  13. 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)

  14. 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

  15. 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)

  16. 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

  17. 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.

  18. 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.)

  19. 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

  20. Dirty bombs: assesment of radiological impacts

    International Nuclear Information System (INIS)

    Trifunovic, D.; Koukouliou, V.

    2009-01-01

    In some countries, regulatory control of radioactive sources, used extensively in medicine and industry, remains weak. Global concerns about the security and safety of radioactive sources escalated following the September 11 2001 terrorist attacks in the United States. There are fears that some radioactive sources could be used by terrorists as radiological dispersal devices (RDD's), or so called 'dirty bombs'. The radioactive material dispersed, depending on the amount and intensity, could cause radiation sickness for a limited number of people nearby if, for example, they inhaled large amounts of radioactive dust. But the most severe tangible impacts would likely be the economic costs and social disruption associated with the evacuation and subsequent clean-up of contaminated property. It has been shown that usage of realistic data in a first response decision making as to avoid inappropriate public reaction accompanied by economic and social consequences is necessary.(author)

  1. Advanced image display systems in radiology

    International Nuclear Information System (INIS)

    Wendler, T.

    1987-01-01

    Advanced image display systems for the fully digital diagnostic imaging departments of the future will be far more than simple replacements of the traditional film-viewing equipment. The new capabilities of very high resolution and highly dynamic displays offer a userfriendly and problem-oriented way of image interpretation. Advanced harware-, software- and human-machine interaction-concepts have been outlined. A scenario for a future way of handling and displaying images, reflecting a new image viewing paradigm in radiology is sketched which has been realized in an experimental image workstation model in the laboratory which, despite its technical complexity, offers a consistent strategy for fast and convenient interaction with image objects. The perspective of knowledge based techniques for workstation control software with object-oriented programming environments and user- and task-adaptive behavior leads to more advanced display properties and a new quality of userfriendliness. 2 refs.; 5 figs

  2. Radiological hazards of smoking

    International Nuclear Information System (INIS)

    Al-Oraby, M. N. A.

    2011-01-01

    A study of Polonium-210 and Lead -210 contents of tobacco has a great importance because of the increase in the incidence of lung cancer observed among smokers. The carcinogenic effect of 210 Po and 210 Pb with respect to lung cancer is an important problem in many countries with very high cigarette consumption. Naturally occurring primordial radionuclides of the uranium-radium series have long been associated with tobacco plants. The properties and distribution of trichomes on tobacco leaf surfaces suggest that they are effective collectors of small particles. It was reported that for an individual smoking two packages of cigarettes a day, the radiation dose to bronchial epithelium from 210 Po inhaled in cigarette smoking probably is at least seven times that from background sources. The effective dose of persons who smoke one or more packs per day of low quality brands is much higher than that resulting from intake with food and water. This indicates that smoke absorbed through the respiratory system is the main source and the principal pathway of 210 Po and 210 Pb intake. Cigarette smoking can be the reason for the higher incidence of cancer of all organs of the respiratory system. (author)

  3. 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.

  4. 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.

  5. 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.

  6. 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

  7. 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

  8. 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.

  9. 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.

  10. 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...

  11. 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)

  12. 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.

  13. 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)

  14. 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

  15. 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.

  16. [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.

  17. 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.

  18. 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

  19. 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.

  20. 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)

  1. 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.

  2. 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

  3. 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.

  4. 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

  5. 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.)

  6. 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

  7. 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.

  8. 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.)

  9. Convention on assistance in the case of a nuclear accident or radiological emergency

    International Nuclear Information System (INIS)

    1986-11-01

    The full text of the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency adopted by the General Conference at its special session from 24-26 September 1986 is presented. It is stipulated that the States Parties shall cooperate between themselves and with the Agency to facilitate prompt assistance in the event of a nuclear accident or radiological emergency to minimize its consequences and to protect life, the property and the environment from the effects of radioactive releases

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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.

  15. 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.

  16. 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.

  17. 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

  18. Results of the radiological survey at Grant Avenue Memorial Park (MJ028), Maywood, New Jersey

    International Nuclear Information System (INIS)

    Foley, R.D.; Crutcher, J.W.; Carrier, R.F.; Floyd, L.M.

    1989-02-01

    The property discussed in this report and properties in its vicinity contaminated with residues from the former Maywood Chemical Works (MCW) were included as a decontamination research and development project under the DOE Formerly Utilized Sites Remedial Action Program. As part of this project, DOE is conducting radiological surveys in the vicinity of the site to identify properties contaminated with residues derived from the MCW. The principal radionuclide of concern is thorium-232. The radiological survey discussed in this report is part of that effort and was conducted, at the request of DOE, by members of the Measurement Applications and Development Group of Oak Ridge National Laboratory. A radiological survey of the property at Grant Avenue Memorial Park, Maywood, New Jersey, was conducted during 1987

  19. 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

  20. 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.

  1. 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

  2. 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

  3. 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...

  4. 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

  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. 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.)

  9. 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.

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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.

  16. 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.

  17. 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

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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

  3. 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.

  4. 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.

  5. 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

  6. 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

  7. 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.

  8. 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

  9. 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

  10. 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.

  11. 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.

  12. 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.

  13. Procedures manual for the ORNL Radiological Survey Activities (RASA) Program

    Energy Technology Data Exchange (ETDEWEB)

    Myrick, T.E.; Berven, B.A.; Cottrell, W.D.; Goldsmith, W.A.; Haywood, F.F.

    1987-04-01

    The portion of the radiological survey program performed by ORNL is the subject of this Procedures Manual. The RASA group of the Health and Safety Research Division (HASRD) at ORNL is responsible for the planning, conducting, and reporting of the results of radiological surveys at specified sites and associated vicinity properties. The results of these surveys are used by DOE in determining the need for and extent of remedial actions. Upon completion of the necessary remedial actions, the ORNL-RASA group or other OOS contractor may be called upon to verify the effectiveness of the remedial action. Information from these postremedial action surveys is included as part of the data base used by DOE in certifying a site for unrestricted use.

  14. Procedures manual for the ORNL Radiological Survey Activities (RASA) Program

    International Nuclear Information System (INIS)

    Myrick, T.E.; Berven, B.A.; Cottrell, W.D.; Goldsmith, W.A.; Haywood, F.F.

    1987-04-01

    The portion of the radiological survey program performed by ORNL is the subject of this Procedures Manual. The RASA group of the Health and Safety Research Division (HASRD) at ORNL is responsible for the planning, conducting, and reporting of the results of radiological surveys at specified sites and associated vicinity properties. The results of these surveys are used by DOE in determining the need for and extent of remedial actions. Upon completion of the necessary remedial actions, the ORNL-RASA group or other OOS contractor may be called upon to verify the effectiveness of the remedial action. Information from these postremedial action surveys is included as part of the data base used by DOE in certifying a site for unrestricted use

  15. Osteoporosis: a new approach of digital processing of radiological images

    International Nuclear Information System (INIS)

    Salles, Adilson Dias; Braz, Valeria Silva

    1998-01-01

    The authors applied a method based on digital processing of radiological images (fast Fourier transform) to analyze the radius distal epiphysis and calcaneus spongy bone architecture. The study revealed distinct patterns of trabecular distribution. Prior studies about osteoporosis have focused on bone density quantification and its role on fracture prediction. However, resistance to fractures (mechanical strength) is also determined by structural arrangement of bone. THe digital processing (spectral analysis) was applied to radiological images of the radius and calcaneus from 15 normal and osteopenic individuals. Normal bone trabeculae showed an individualized behavior (stress lines). On the other hand, porotic bone trabeculae revealed a diffuse pattern (honey comb). The scattered frequency components showed that the porotic bone trabeculae were remodeled. This process would be responsible for the maintenance of its physical properties. (author)

  16. 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

  17. Spanish Radiology in the second half of the XX Century: A view from inside

    Energy Technology Data Exchange (ETDEWEB)

    Bonmati, Jose [Sociedad Espanola de Radiologia (SEREM) (Spain)], E-mail: jbonmati@telefonica.net

    2008-09-15

    Radiology was born in 1896 with the immediate recognition of the diagnostic value of X-rays in medicine and progressed throughout the XX Century with the increasing knowledge of its properties and clinical applications. By mid-century Radiology was a respected clinical specialty in advanced countries, the radiological report was a requirement in hospital practice and radiologists' opinions requested in scientific meetings. In the last decades of the century has had a spectacular expansion with the emergence of new imaging modalities and revolutionary technologies that have transformed the specialty worldwide. In Spain Radiology lagged behind needs and demand in 1950. Radiological practice was unregulated and performance of X-ray exams by non-radiologists was common. Teaching of Radiology was non-existent in Medical Schools or postgraduation. The diagnostic value of the specialty was unrecognized by physicians and the role of radiologists ignored. Most hospital radiology services were poorly equipped and functionally inadequate. The shadow of the Civil War (1936-39) was conditioning Radiology in the country. The point of inflexion in the development of Radiology in Spain was the inclusion of film reading sessions in the 1965 academic program of the Society of Radiology. It was in the presentation of cases at these conferences that Clinical Radiology found the finest demonstration ground and as a result was immediately adopted by radiologists and progressively applied in scientific meetings, clinical practices and training programs. Its influence was important in reforming hospital practice, legislation on specialization and education, as well as in national health care plans. At the end of the century radiology in Spain was at a par with the standards of other western nations. The author was a witness of the evolution of Radiology during his 50 years of professional life. This article does not pretend to be exhaustive in names or contributions. It is an

  18. Spanish Radiology in the second half of the XX Century: A view from inside

    International Nuclear Information System (INIS)

    Bonmati, Jose

    2008-01-01

    Radiology was born in 1896 with the immediate recognition of the diagnostic value of X-rays in medicine and progressed throughout the XX Century with the increasing knowledge of its properties and clinical applications. By mid-century Radiology was a respected clinical specialty in advanced countries, the radiological report was a requirement in hospital practice and radiologists' opinions requested in scientific meetings. In the last decades of the century has had a spectacular expansion with the emergence of new imaging modalities and revolutionary technologies that have transformed the specialty worldwide. In Spain Radiology lagged behind needs and demand in 1950. Radiological practice was unregulated and performance of X-ray exams by non-radiologists was common. Teaching of Radiology was non-existent in Medical Schools or postgraduation. The diagnostic value of the specialty was unrecognized by physicians and the role of radiologists ignored. Most hospital radiology services were poorly equipped and functionally inadequate. The shadow of the Civil War (1936-39) was conditioning Radiology in the country. The point of inflexion in the development of Radiology in Spain was the inclusion of film reading sessions in the 1965 academic program of the Society of Radiology. It was in the presentation of cases at these conferences that Clinical Radiology found the finest demonstration ground and as a result was immediately adopted by radiologists and progressively applied in scientific meetings, clinical practices and training programs. Its influence was important in reforming hospital practice, legislation on specialization and education, as well as in national health care plans. At the end of the century radiology in Spain was at a par with the standards of other western nations. The author was a witness of the evolution of Radiology during his 50 years of professional life. This article does not pretend to be exhaustive in names or contributions. It is an overview of

  19. 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.)

  20. 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

  1. 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

  2. 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.

  3. 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.)

  4. 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)

  5. 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.

  6. 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.

  7. 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.)

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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.

  13. Results of the radiological survey at 1047 Central Avenue, Albany, New York (AL209)

    International Nuclear Information System (INIS)

    Hall, S.C.; Marley, J.L.

    1987-11-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 1047 Central Avenue in Albany, New York was the subject of a radiological investigation initiated August 26, 1986. The commercial property consists of a two-story frame building located on an irregular lot. An asphalt drive connects the property to the street. A diagram of the property showing the approximate boundaries and the 6-m grid network established for measurements outside the building is shown. The lot included in the radiological survey was /approximately/18 m wide by 60 m deep. Front and rear views of the property are shown. 13 refs., 5 figs., 5 tabs

  14. 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

  15. 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

  16. 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;…

  17. 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 ...

  18. 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…

  19. 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 ...

  20. 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

  1. 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

  2. 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

  3. 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.)

  4. 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.

  5. 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.

  6. 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)

  7. 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, ...

  8. 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.

  9. 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

  10. [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.

  11. 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)

  12. Patient dose in interventional radiology

    International Nuclear Information System (INIS)

    Fernandez Bordes, M.; Berenguer, R.; Gomez, P.; Bejar, M.J.; Gonzalez, S.

    2001-01-01

    This paper presents the estimation of dose-area product (DAP) received by 128 patients during different interventional radiological procedures in the Hospital Universitario de Salamanca, analyzing the differences between procedures classified as either vascular, non vascular, diagnostic or therapeutic. These differences can be assessed and reference dose levels can be established as a function of the variation of those parameters. Comparisons between dose-area product values obtained from this study are made with the data from nine other patient dose surveys, although explanations for some of the differences could not be obtained in some cases. The reference values in these procedures in our centre are very high due to a great number of images, so the clinical protocol should be changed to avoid this problem. (author)

  13. The interventional radiology business plan.

    Science.gov (United States)

    Beheshti, Michael V; Meek, Mary E; Kaufman, John A

    2012-09-01

    Strategic planning and business planning are processes commonly employed by organizations that exist in competitive environments. Although it is difficult to prove a causal relationship between formal strategic/business planning and positive organizational performance, there is broad agreement that formal strategic and business plans are components of successful organizations. The various elements of strategic plans and business plans are not common in the vernacular of practicing physicians. As health care becomes more competitive, familiarity with these tools may grow in importance. Herein we provide an overview of formal strategic and business planning, and offer a roadmap for an interventional radiology-specific plan that may be useful for organizations confronting competitive and financial threats. Copyright © 2012 SIR. Published by Elsevier Inc. All rights reserved.

  14. Incidental radiological diagnosis of rickets.

    Science.gov (United States)

    Rennie, L M; Beattie, T F; Wilkinson, A G; Crofton, P; Bath, L E

    2005-08-01

    Rickets fortunately remains rare in the United Kingdom, although its actual incidence is currently undetermined.1 Many still consider it to be a disease of poverty prevalent during the Victorian era. However, a number of recent articles have highlighted concern among British health professionals about the number of cases still being diagnosed in this country. These cases have nearly all involved non-Caucasian children who are considered to be at high risk due to skin colour, prolonged breast feeding, and low maternal vitamin D levels. Their presentations are variable ranging from failure to thrive, bone deformities, seizures, and even stridor. The diagnosis is usually made in babies and toddlers.We present a series of patients attending our accident and emergency (A&E) department, over a five month period, where the diagnosis of rickets was primarily a radiological diagnosis.

  15. Radiologic diagnosis of lung tuberculosis

    International Nuclear Information System (INIS)

    Eisenhuber, E.; Mostbeck, G.; Bankier, A.; Stadler, A.; Rumetshofer, R.

    2007-01-01

    The radiologic knowledge of tuberculosis-associated lung disease is an essential tool in the clinical diagnosis of tuberculosis. Chest radiography is the primary imaging method, but the importance of CT is still increasing, as CT is more sensitive in the detection of cavitation, of hilar and mediastinal lymphadenopathie, of endobronchial spread and of complications in the course of the disease. In addition, CT has been proven as a valuable technique in the assessment of tuberculosis activity, especially in patients where M. tuberculosis has not been detected in the sputum or in patients with multidrug-resistant tuberculosis. Depending on the immune status of the patient, the morphologic spectrum of tuberculosis is quite variable. Early diagnosis of tuberculosis is essential to prevent further spread of the disease. (orig.) [de

  16. Radiologic evaluation of chondromalacia patellae

    International Nuclear Information System (INIS)

    Lund, F.; Nilsson, B.E

    1980-01-01

    In a series of patients in whom the patello-femoral joint has been examined by arthroscopy, in conjunction with arthrotomy or both, previously obtained films were reviewed. A series of radiologic morphometric measurements with bearing on the shape of the patella and the patello-femoral joint was carried out and compared between patients who had normal patello-femoral joints, patients with chondromalacia grade II or III and patients with chondromalacia grade IV or arthrosis. No difference between the three groups in any of the variables was found. However, a shallow excavation in the subchondral bone was observed in the lateral view of the patella in most of those patients with proven chondromalacia patellae. (Auth.)

  17. Radiologic sciences. Faculty needs assessment.

    Science.gov (United States)

    Powers, Kevin J

    2005-01-01

    A total of 326 programs are represented in the data collected. Based on the average number of full- and part-time faculty members reported per program, this survey represents more than 1500 faculty positions. Based on the forecast of retirement and career change for all faculty members, there will be a turnover of 700 to 800 positions over the next 5 to 10 years. Part-time/adjunct faculty vacancies are expected to create the greatest number of opportunities for technologists to make the transition to education, with approximately one third of current part-time/adjunct educators planning on leaving radiologic sciences education within 5 years. To encourage retention of part-time/adjunct educators, annual evaluations should be modified to recognize the important educational role these instructors play. There is a need to create enthusiasm and interest in education as a career pathway for radiologic technologists. Resources are needed that help radiologic technologists make the transition to teaching. Finally, the retention of educators must be emphasized. Program applicant trends indicate radiologic technology students are older, have prior postsecondary education experience or are making a career change. This data emphasizes the need for educators, both full time and part time, to understand the characteristics and needs of the adult learner. Adult learners bring a wealth of education, experience and life skills that create both opportunities and challenges in the classroom and clinical setting. All categories of respondents indicated that their current salaries were greater than those of program graduates in their firstjob. Of interest is that 1 in 5 (20%) of part-time/adjunct educators indicated the opposite--that program graduates earn more in their firstjob than educators earn. When asked about salaries if working full time in clinical practice, the majority of all groups indicated their salary would be about the same or would decrease. Only 20% of program

  18. Quality management systems in radiology

    Directory of Open Access Journals (Sweden)

    Geoffrey K. Korir

    2013-08-01

    Objective: To assess the level of quality management systems in X-ray medical facilities in Kenya. Methods: Quality management inspection, quality control performance tests and patient radiation exposure were assessed in 54 representative X-ray medical facilities. Additionally, a survey of X-ray examination frequency was conducted in 140 hospitals across the country. Results: The overall findings placed the country’s X-ray imaging quality management systems at 61±3% out of a possible 100%. The most and the least quality assurance performance indicators were general radiography X-ray equipment quality control tests at 88±4%, and the interventional cardiology adult examinations below diagnostic reference level at 25±1%, respectively. Conclusions: The study used a systematic evidence-based approach for the assessment of national quality management systems in radiological practice in clinical application, technical conduct of the procedure, image quality criteria, and patient characteristics as part of the quality management programme.

  19. Radiologic findings of hemophilic arthropathy

    International Nuclear Information System (INIS)

    Jun, Young Hwan; Yeon, Kyung Mo; Kim, Chu Wan

    1980-01-01

    Hemophilia is a primary disorder of coagulation complicated by spontaneous intra-articular hemorrhage. This paper is to describe and analyze the radiographic findings of involved bone and joints of hemophilic patients for past 5 years. The results were as follows: 1. Age distribution of the total 28 patients was ranging from 1 year to 42 years. 86% of patients was below the age of 20 years. 2. The incidence of joint involvement was in next order; knee joint (25), elbow joint (4), ankle joint (2), hip joint (1). 3. The radiologic findings of involved joint were characterized by irregularity of articular cortices (22), joint space change (19), soft tissue swelling (19), subchondral or intra-osseous cyst (12), periarticular osteoporosis (19), degenerative change (10), condylar enlargement (11) intercondylar notch widening (21) and flexion deformity (13)

  20. Radiological investigation of drinking water

    International Nuclear Information System (INIS)

    Kunz, E.

    1981-01-01

    An analysis is made of the report ''Radiological investigation of drinking water'' submitted by a working group of WHO to the Brussels meeting held between Nov 7 and 10, 1978. Annex II is emphasized of the WHO publication bearing the title ''The revision of WHO standards for drinking water''. It is shown that the draft of the revision does not basically differ from the revision introduced in Czechoslovakia and published in a revised standard CSN 83 0611 Drinking Water from 1978, including its harmonization with the Decree 59/72 Collect. of Laws on the protection of health from ionizing radiation, and from the standard CSN 83 0523 Radiometric analysis of drinking water. It is also shown that the text of the working group report contains some incorrect or unclear statements and views, which is explained by the misunderstanding of some ICRP recommendations. (H.S.)

  1. Radiologic evaluation of gastrointestinal leiomyosarcomatosis

    Energy Technology Data Exchange (ETDEWEB)

    Korman, U.; Ersavasti, G.; Kurugoglu, S.; Akman, C. [Department of Diagnostic Radiology, Cerrahpasa Medical School, University of Istanbul, TR-34 300 Istanbul (Turkey); Uygun, N.T. [Department of Pathology, Cerrahpasa Medical School, University of Istanbul, TR-34 300 Istanbul (Turkey)

    1997-10-01

    A 68-year-old woman who had previously undergone small intestinal resection because of leiomyosarcoma was referred to our clinic with epigastric pain. A double-contrast barium study and the subsequent abdominopelvic CT and abdominal MRI examinations demonstrated multiple extraluminal growing tumors arising from the walls of stomach, small bowell, and colon. A CT-guided aspiration biopsy revealed malignant mesenchymal tumor. The presence of disseminated intra-abdominal masses without concomitant ascites and invasion of tissue planes on CT in a patient operated on prior because of a leiomyosarcoma led to the diagnosis of gastrointestinal leiomyosarcomatosis. In this report we discuss the radiological approach to this rare entity. (orig.). With 4 figs.

  2. Manual for environmental radiological surveillance

    International Nuclear Information System (INIS)

    Sumiya, Shuichi; Matsuura, Kenichi; Nakano, Masanao; Takeyasu, Masanori; Morisawa, Masato; Onuma, Toshimitsu; Fujita, Hiroki; Mizutani, Tomoko; Watanabe, Hajime; Sugai, Masamitsu

    2010-03-01

    Environmental radiation monitoring around the Tokai Reprocessing Plant has been conducted by the Nuclear Fuel Cycle Engineering Laboratories, based on 'Safety Regulations for the Reprocessing Plant of JAEA, Chapter IV - Environmental monitoring' and Environmental Radiation Monitoring Program decided by the Ibaraki prefectural government. The radiation monitoring installations and equipments were also prepared for emergency. This manual describes; (1) the installations of radiological measurement, (2) the installations of meteorological observation, and (3) environmental data processing system for executing the terrestrial environmental monitoring by Environmental Protection Section, Radiation Protection Department. The environmental monitoring has been operated through the manual published in 1993 (PNC TN8520 93-001). Then the whole articles were revised because the partially of installations and equipments having been updated in recent years. (author)

  3. 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

  4. Radiology illustrated. Uroradiology. 2. ed.

    International Nuclear Information System (INIS)

    Kim, Seung Hyup

    2012-01-01

    Uroradiology is an up-to-date, image-oriented reference in the style of a teaching file that has been designed specifically to be of value in clinical practice. All aspects of the imaging of urologic diseases are covered, and case studies illustrate the findings obtained with the relevant imaging modalities in both common and uncommon conditions. Most chapters focus on a particular clinical problem, but normal findings, congenital anomalies, and interventions are also discussed and illustrated. In this second edition, the range and quality of the illustrations have been enhanced, and many schematic drawings have been added to help readers memorize characteristic imaging findings through pattern recognition. The accompanying text is concise and informative. Besides serving as an outstanding aid to differential diagnosis, this book will provide a user-friendly review tool for certification or recertification in radiology. (orig.)

  5. 84-KILOMETER RADIOLOGICAL MONITORING GRID

    International Nuclear Information System (INIS)

    L. Roe

    2000-01-01

    The purpose of this calculation is to document the development of a radial grid that is suitable for evaluating the pathways and potential impacts of a release of radioactive materials to the environment within a distance of 84 kilometers (km). The center of the grid represents an approximate location from which a potential release of radioactive materials could originate. The center is located on Nevada State Plane coordinates Northing 765621.5, and Easting 570433.6, which is on the eastern side of Exile Hill at the Yucca Mountain site. The North Portal Pad is located over this point. The grid resulting from this calculation is intended for use primarily in the Radiological Monitoring Program (RadMP). This grid also is suitable for use in Biosphere Modeling and other Yucca Mountain Site Characteristic Project (YMP) activities that require the evaluation of data referenced by spatial or geographic coordinates

  6. Radiology seminars using teaching kits

    International Nuclear Information System (INIS)

    Munro, T.G.

    1989-01-01

    Clinco-radiological seminars are an effective method of teaching medical students. However, in busy departments it is often difficult to provide enough radiologists for small group instruction. This can be facilitated by the use of prepared teaching kits. Each kit contains a set of duplicated films and a syllabus which gives a short clinical history for each patient and a series of questions to be used to direct the discussion. Each diagnostic problem is chosen to demonstrate core material. We have been using these teaching kits for organ system teaching in the preclerkship year. Teaching kits offer several advantages. They make it easier to recruit seminar leaders through efficient use of their time. The use of duplicated films and a syllabus ensures that all students cover the same material. The syllabus can be used to generate examination questions for reinforcement of important concepts. The kits are also available to students to review alone and can be readily updated as required

  7. Factors affecting patient dose in diagnostic radiology

    International Nuclear Information System (INIS)

    Poletti, J.L.

    1994-03-01

    The report, Factors Affecting Patient Dose in Diagnostic Radiology is divided into three main sections. Part one is introductory and covers the basic principles of x-ray production and image formation. It includes discussion of x-ray generators and x-ray tubes, radiation properties and units, specification and measurement of x-ray beams, methods of patient dose measurement, radiation effects, radiation protection philosophy and finally the essentials of imaging systems. Part two examines factors affecting the x-ray output of x-ray machines and the characteristics of x-ray beams. These include the influence of heat ratings, kVp, waveform, exposure timer, filtration, focus-film distance, beam intensity distribution, x-ray tube age and focal spot size. Part three examines x-ray machine, equipment and patient factors which affect the dose received by individual patients. The factors considered include justification of examinations, choice of examination method, film/screen combinations, kVp, mAs, focus-film distance, collimation and field size, exposure time, projection, scatter, generator calibration errors, waveform, filtration, film processing and patient size. The patient dose implications of fluoroscopy systems, CT scanners, special procedures and mammography are also discussed. The report concludes with a brief discussion of patient dose levels in New Zealand and dose optimisation. 104 refs., 32 figs., 27 tabs

  8. Antiplatelet and Anticoagulant Drugs in Interventional Radiology

    International Nuclear Information System (INIS)

    Altenburg, Alexander; Haage, Patrick

    2012-01-01

    In treating peripheral arterial disease, a profound knowledge of antiplatelet and anticoagulative drug therapy is helpful to assure a positive clinical outcome and to anticipate and avoid complications. Side effects and drug interactions may have fatal consequences for the patient, so interventionalists should be aware of these risks and able to control them. Aspirin remains the first-line agent for antiplatelet monotherapy, with clopidogrel added where dual antiplatelet therapy is required. In case of suspected antiplatelet drug resistance, the dose of clopidogrel may be doubled; prasugrel or ticagrelor may be used alternatively. Glycoprotein IIb/IIIa inhibitors (abciximab or eptifibatide) may help in cases of hypercoagulability or acute embolic complications. Desmopressin, tranexamic acid, or platelet infusions may be used to decrease antiplatelet drug effects in case of bleeding. Intraprocedurally, anticoagulant therapy treatment with unfractionated heparin (UFH) still is the means of choice, although low molecular-weight heparins (LMWH) are suitable, particularly for postinterventional treatment. Adaption of LMWH dose is often required in renal insufficiency, which is frequently found in elderly patients. Protamine sulphate is an effective antagonist for UFH; however, this effect is less for LMWH. Newer antithrombotic drugs, such as direct thrombin inhibitors or factor X inhibitors, have limited importance in periprocedural treatment, with the exception of treating patients with heparin-induced thrombocytopenia (HIT). Nevertheless, knowing pharmacologic properties of the newer drugs facilitate correct bridging of patients treated with such drugs. This article provides a comprehensive overview of antiplatelet and anticoagulant drugs for use before, during, and after interventional radiological procedures.

  9. Radiological maps for Trabzon, Turkey

    Energy Technology Data Exchange (ETDEWEB)

    Kurnaz, A., E-mail: asliy@ktu.edu.t [Karadeniz Technical University, Department of Physics, 61080 Trabzon (Turkey); Kucukomeroglu, B. [Karadeniz Technical University, Department of Physics, 61080 Trabzon (Turkey); Damla, N. [Batman University, Department of Physics, 72060 Batman (Turkey); Cevik, U. [Karadeniz Technical University, Department of Physics, 61080 Trabzon (Turkey)

    2011-04-15

    The activity concentrations and absorbed gamma dose rates due to primordial radionuclides and {sup 137}Cs have been ascertained in 222 soil samples in 18 counties of the Trabzon province of Turkey using a HPGe detector. The mean activity concentrations of {sup 238}U, {sup 232}Th, {sup 40}K and {sup 137}Cs in soil samples were 41, 35, 437 and 21 Bq kg{sup -1}, respectively. Based on the measured concentrations of these radionuclides, the mean absorbed gamma dose in air was calculated as 59 nGy h{sup -1} and hence, the mean annual effective dose due to terrestrial gamma radiation was calculated as 72 {mu}Sv y{sup -1}. In addition, outdoor in situ gamma dose rate (D) measurements were performed in the same 222 locations using a portable NaI detector and the annual effective dose was calculated to be 66 {mu}Sv y{sup -1} from these results. The results presented in this study are compared with other parts of Turkey. Radiological maps of the Trabzon province were composed using the results obtained from the study. - Highlights: {yields} {yields}The study highlights activity concentrations of {sup 238}U, {sup 232}Th, {sup 40}K and {sup 137}Cs in soil. {yields} The absorbed gamma dose in air and the mean annual effective dose were calculated. {yields} The calculated results compared with outdoor in situ gamma dose measurements. {yields} Radiological maps of the Trabzon province were created using ArcGIS applications. {yields} The results will be valuable data for future estimations of radioactive pollution.

  10. 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.

  11. 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)

  12. Instructions for Radiological Case Reports.

    Science.gov (United States)

    Bannas, Peter

    2017-04-01

    Purpose  This paper explains the purpose and structure of a radiological case report and provides guidance for radiologists with respect to the writing of a well-structured patient case report. Materials and Methods  The current literature and the author's experience as a writer were used to create a manual that describes steps for preparing a radiological case report containing all of the important ingredients for effective communication. Results  Case reports are the first line of evidence in documenting clinical observations in the literature. A case report should be written succinctly and consists of four structured main sections: introduction, description of the case, discussion and conclusion. Its structure follows the structure of an original research article, whereby the description of the case of the case report corresponds to the materials and methods section of the research article. The introduction provides the subject and merit of the case report with respect to the published literature. The case description presents the case in detail and chronological order to allow for plausibility. The discussion compares the case with the published literature and summarizes the essential features. A case report, like an original article, must provide a justified conclusion. The conclusion should be brief and be applicable to clinical practice. Conclusion  The unique quality of the case, proper preparation and a clear conclusion are essential for a case report to be published. Key Points: · Case reports are the first line of evidence in documenting clinical observations in the literature. · The structure of a case report structure follows the structure of an original research article. · The unique quality of the case, proper preparation and a clear conclusion are essential for a case report to be published.. Citation Format · Bannas P. Anleitung zum Schreiben eines radiologischen Fallberichts. Fortschr Röntgenstr 2017; 189: 333 - 337.

  13. Managing a multicultural radiology staff.

    Science.gov (United States)

    Davidhizar, R; Dowd, S; Giger, J

    1997-01-01

    Opportunities for minorities in healthcare increased with the Civil Rights movement in the 1960s. More recently, funds from the U.S. Public Health Service have been targeted toward disadvantaged minorities. The workforce in healthcare, and in business in general, has become increasingly multicultural. Much of the literature in healthcare management lacks practical guidelines for managing a diverse workforce. Communication, both verbal and nonverbal, and culture are closely intertwined. Managers, as they develop multicultural teams, will need to understand how culture influences communication in their organizations. Space, spatial behavior, and cultural attitudes influence people's behavior. This is a particularly important consideration for a radiology staff, which must often work in close quarters. For some cultural groups, the family as an organization has more significance than even personal, work-related or national causes. People's orientation to time, whether for the past, present or future, is usually related to the culture in which they grew up. Again, this may become an important issue for a radiology administrator whose organization must run punctually and time-efficiently. How patients feel about their environment, whether they believe they are in control or believe in an external locus of control, is of particular interest to those who attempt therapeutic changes in a patient's healthcare. Does the patient believe that illness is divine will or that suffering is intrinsic to the human condition? There is increasing research in the United States to show that people do differ biologically according to race. Such differences exist among patients as well as among staff members. It has been popular to assume that differences among races do not exist. Unfortunately such an attitude does not allow for different attributes and responses of individuals. Managing a multicultural staff presents a challenge to administrators who must be skilled in working with

  14. Gastric Mucosal Erosions - Radiologic evaluation -

    International Nuclear Information System (INIS)

    Kim, Seung Hyup

    1985-01-01

    70 cases of gastric mucosal erosions were diagnosed by double contrast upper gastrointestinal examinations and endoscopic findings. Analyzing the radiologic findings of these 70 cases of gastric mucosal erosions, the following results were obtained. 1. Among the total 70 cases, 65 cases were typical varioliform erosions showing central depressions and surrounding mucosal elevations. Remaining 5 cases were erosions of acute phase having multiple irregular depressions without surrounding elevations. 2. The gastric antrum was involved alone or in part in all cases. Duodenal bulb was involved with gastric antrum in 4 cases. 3. The majority of the cases had multiple erosions. There were only 2 cases of single erosion. 4. In 65 cases of varioliform erosions; 1) The diameter of the surrounding elevations varied from 3 to 20 mm with the majority (47 cases) between 6 and 10 mm. 2) In general, the surrounding elevations with sharp margin on double contrast films were also clearly demonstrated on compression films but those with faint margin were not. 3) The size of the central barium collections varied from pinpoint to 10 mm with the majority under 5 mm. The shape of the central barium collections in majority of the cases were round with a few cases of linear, triangular or star-shape. 5. In 5 cases of acute phase erosions; 1) All the 5 cases were females. 2) On double contrast radiography, all the cases showed multiple irregular depressed lesions without surrounding elevations. 3) 1 case had the history of hematemesis. 4) In 1 case, there was marked radiological improvement on follow-up study of 2 months interval. 6. In 23 cases, there were coexistent diseases with gastric mucosal erosions. These were 13 cases of duodenal bulb ulcers,7 cases of benign gastric ulcers and 3 others

  15. Bacteriological Monitoring of Radiology Room Apparatus in the Department of Radiological Technology and Contamination on Hands of Radiological Technologists

    International Nuclear Information System (INIS)

    Kim, Seon Chil

    2008-01-01

    Distribution of microorganisms were examined for the bucky tables in the radiology rooms of the department of radiological technology, the aprons, handles of various apparatus, handles of mobile radiological apparatus, and hands of the radiological technologists. As a result, relatively larger amounts of bacteria were found on the handles of the mobile radiological apparatus and the aprons. Among the isolated bacteria, Acinetobacter baumanni (7.3%), Klebsiella pneumoniae (6.7%), Staphylococcus aureus (3.9%), Serratia liquefaciens (1.7%), Enterobacter cloaceae (0.6%), Providenica rettgeri (0.6%) are known as the cause of nosocomial infection (hospital acquired infection). In addition, similar colonies were also found on the hands of the radiological technologists such as microorganisms of Klebsiella pneumoniae (8.4%), Staphylococcus aureus (6.6%), Yersinia enterocolotica (5.4%), Acinetobacter baumanni (4.2%), Enterobacter cloaceae (2.4%), Serratia liquefaciens (1.8%), Yersinia pseuotuberculosis (18%), Enterobacter sakazakii (1.2%), and Escherichia coli (0.6%). In particular, this result indicates clinical significance since Staphylococcus aureus and Escherichia coli show strong pathogenicity. Therefore, a continuous education is essential for the radiological technologists to prevent the nosocomial infection.

  16. Bacteriological Monitoring of Radiology Room Apparatus in the Department of Radiological Technology and Contamination on Hands of Radiological Technologists

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seon Chil [Dept. of Radiologic Technology, Daegu Health College, Daegu (Korea, Republic of)

    2008-12-15

    Distribution of microorganisms were examined for the bucky tables in the radiology rooms of the department of radiological technology, the aprons, handles of various apparatus, handles of mobile radiological apparatus, and hands of the radiological technologists. As a result, relatively larger amounts of bacteria were found on the handles of the mobile radiological apparatus and the aprons. Among the isolated bacteria, Acinetobacter baumanni (7.3%), Klebsiella pneumoniae (6.7%), Staphylococcus aureus (3.9%), Serratia liquefaciens (1.7%), Enterobacter cloaceae (0.6%), Providenica rettgeri (0.6%) are known as the cause of nosocomial infection (hospital acquired infection). In addition, similar colonies were also found on the hands of the radiological technologists such as microorganisms of Klebsiella pneumoniae (8.4%), Staphylococcus aureus (6.6%), Yersinia enterocolotica (5.4%), Acinetobacter baumanni (4.2%), Enterobacter cloaceae (2.4%), Serratia liquefaciens (1.8%), Yersinia pseuotuberculosis (18%), Enterobacter sakazakii (1.2%), and Escherichia coli (0.6%). In particular, this result indicates clinical significance since Staphylococcus aureus and Escherichia coli show strong pathogenicity. Therefore, a continuous education is essential for the radiological technologists to prevent the nosocomial infection.

  17. Radiological Control Technician: Phase 1, Site academic training lesson plans

    International Nuclear Information System (INIS)

    1992-10-01

    This volume provides lesson plans for training radiological control technicians. Covered here is basic radiological documentation, counting errors, dosimetry, environmental monitoring, and radiation instruments

  18. Standard practice for radiological examination using digital detector arrays

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2010-01-01

    1.1 This practice establishes the minimum requirements for radiological examination for metallic and nonmetallic material using a digital detector array (DDA) system. 1.2 The requirements in this practice are intended to control the quality of radiologic images and are not intended to establish acceptance criteria for parts or materials. 1.3 This practice covers the radiologic examination with DDAs including DDAs described in Practice E2597 such as a device that contains a photoconductor attached to a Thin Film Transistor (TFT) read out structure, a device that has a phosphor coupled directly to an amorphous silicon read-out structure, and devices where a phosphor is coupled to a CMOS (Complementary metal–oxide–semiconductor) array, a Linear Detector Array (LDA) or a CCD (charge coupled device) crystalline silicon read-out structure. 1.4 The DDA shall be selected for an NDT application based on knowledge of the technology described in Guide , and of the selected DDA properties provided by the manufactu...

  19. Radiological Assistance Program, DOE Region 6 response plan

    International Nuclear Information System (INIS)

    Jakubowski, F.M.

    1993-02-01

    This program plan meets all the requirements identified in DOE Order 5530.3, Radiological Assistance Program and supports those requirements leading to the establishment of a Federal Radiological Monitoring and Assessment Center (FRMAC) as required by DOE 5530-5. Requests for radiological assistance may come from other DOE facilities, Federal or state agencies, tribal officials, or from any private corporation or individual. Many of the requests will be handled by a telephone call, a conference or a letter, teletype or memorandum. Other requests for assistance may involve radioactive material in serious accidents, fire, personal injuries, contamination or possible hazards to the general public. Some occurrences may require the dispatch of trained personnel equipped with radiation monitoring instruments and related equipment necessary to evaluate, control and neutralize the hazard. The primary responsibility for incidents involving radioactive material always remains with the party having custody of the radioactive materials. In addition, the DOE recognizes that the assistance provided shall not in any way preempt state, tribal, or local authority and/or responsibility on state or tribal properties. Toward this end, DOE assistance for non-DOE radioactive materials, is limited to technical assistance, advice, measurement and other resources as deemed necessary by the local authorities but excludes DOE interface with the public media. This is a function handled by the local or state Incident Commander

  20. 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)

  1. Evidence-based radiology: why and how?

    International Nuclear Information System (INIS)

    Sardanelli, Francesco; Di Leo, Giovanni; Hunink, Myriam G.; Gilbert, Fiona J.; Krestin, Gabriel P.

    2010-01-01

    To provide an overview of evidence-based medicine (EBM) in relation to radiology and to define a policy for adoption of this principle in the European radiological community. Starting from Sackett's definition of EBM we illustrate the top-down and bottom-up approaches to EBM as well as EBM's limitations. Delayed diffusion and peculiar features of evidence-based radiology (EBR) are defined with emphasis on the need to shift from the demonstration of the increasing ability to see more and better, to the demonstration of a significant change in treatment planning or, at best, of a significant gain in patient outcome. The ''as low as reasonably achievable'' (ALARA) principle is thought as a dimension of EBR while EBR is proposed as part of the core curriculum of radiology residency. Moreover, we describe the process of health technology assessment in radiology with reference to the six-level scale of hierarchy of studies on diagnostic tests, the main sources of bias in studies on diagnostic performance, and levels of evidence and degrees of recommendations according to the Centre for Evidence-Based Medicine (Oxford, UK) as well as the approach proposed by the GRADE working group. Problems and opportunities offered by evidence-based guidelines in radiology are considered. Finally, we suggest nine points to be actioned by the ESR in order to promote EBR. Radiology will benefit greatly from the improvement in practice that will result from adopting this more rigorous approach to all aspects of our work. (orig.)

  2. Radiological attacks and accidents. Medical consequences

    International Nuclear Information System (INIS)

    Sakuta, Hidenari

    2007-01-01

    Probability of the occurrence of radiological attacks appears to be elevated after the terrorist attacks against the United States on September 11 in 2001. There are a lot of scenarios of radiological attack: simple radiological device, radiological disperse device (RDD or dirty bomb), attacks against nuclear reactor, improvised nuclear device, and nuclear weapons. Of these, RDD attack is the most probable scenario, because it can be easily made and can generate enormous psychological and economic damages. Radiological incidents are occurring to and fro in the world, including several cases of theft to nuclear facilities and unsuccessful terrorist attacks against them. Recently, a former Russian spy has allegedly been killed using polonium-210. In addition, serious radiological accidents have occurred in Chernobyl, Goiania, and Tokai-mura. Planning, preparation, education, and training exercise appear to be essential factors to cope with radiological attacks and accidents effectively without feeling much anxiety. Triage and psychological first aid are prerequisite to manage and provide effective medial care for mass casualties without inducing panic. (author)

  3. Evidence-based Practice of Radiology.

    Science.gov (United States)

    Lavelle, Lisa P; Dunne, Ruth M; Carroll, Anne G; Malone, Dermot E

    2015-10-01

    Current health care reform in the United States is producing a shift in radiology practice from the traditional volume-based role of performing and interpreting a large number of examinations to providing a more affordable and higher-quality service centered on patient outcomes, which is described as a value-based approach to the provision of health care services. In the 1990 s, evidence-based medicine was defined as the integration of current best evidence with clinical expertise and patient values. When these methods are applied outside internal medicine, the process is called evidence-based practice (EBP). EBP facilitates understanding, interpretation, and application of the best current evidence into radiology practice, which optimizes patient care. It has been incorporated into "Practice-based Learning and Improvement" and "Systems-based Practice," which are two of the six core resident competencies of the Accreditation Council for Graduate Medical Education and two of the 12 American Board of Radiology milestones for diagnostic radiology. Noninterpretive skills, such as systems-based practice, are also formally assessed in the "Quality and Safety" section of the American Board of Radiology Core and Certifying examinations. This article describes (a) the EBP framework, with particular focus on its relevance to the American Board of Radiology certification and maintenance of certification curricula; (b) how EBP can be integrated into a residency program; and (c) the current value and likely place of EBP in the radiology information technology infrastructure. Online supplemental material is available for this article. © RSNA, 2015.

  4. Research and development in radiological protection

    International Nuclear Information System (INIS)

    Butragueno, J. L.; Villota, C.; Gutierrez, C.; Rodriguez, A.

    2004-01-01

    The objective of Radiological Protection is to guarantee that neither people, be they workers or members of the public, or the environment are exposed to radiological risks considered by society to be unacceptable. Among the various resources available to meet this objective is Research and Development (R and D), which is carried out in three areas: I. Radiological protection of persons: (a) knowledge of the biological effects of radiations, in order to determine the relationship that exists between radiation exposure dose and its effects on health; (b) the development of new personal dosimetry techniques in order to adapt to new situations, instrumental techniques and information management technologies allowing for better assessment of exposure dose; and (c) development of the principle of radiological protection optimisation (ALARA), which has been set up internationally as the fundamental principle on which radiological protection interventions are based. II. Assessment of environmental radiological impact, the objective of which is to assess the nature and magnitude of situations of exposure to ionising radiations as a result of the controlled or uncontrolled release of radioactive material to the environment, and III.Reduction of the radiological impact of radioactive wastes, the objective of which is to develop radioactive material and waste management techniques suitable for each situation, in order to reduce the risks associated with their definitive management or their release to the environment. Briefly described below are the strategic lines of R and D of the CSN, the Electricity Industry, Ciemat and Enresa in the aforementioned areas. (Author)

  5. History of metaphoric signs in radiology

    Energy Technology Data Exchange (ETDEWEB)

    Baker, Stephen R., E-mail: bakersr@umdnj.edu; Noorelahi, Yasser M., E-mail: dr.ynoorelahi@gmail.com; Ghosh, Shanchita, E-mail: Ghoshs1@umdnj.edu; Yang, Lily C., E-mail: yangclily@gmail.com; Kasper, David J., E-mail: dkasp86@gmail.com

    2013-09-15

    Purpose: To survey the nearly 100 year history of metaphoric sign naming in radiology describing the pace of their overall accumulation in the radiology canon, their specific rates of growth by modality and subspecialty and the characteristics of the referents to which the signs are attached. Materials and methods: A comprehensive list of metaphoric signs was compiled from a search of articles in several major English language radiology journals, from a roster compiled in a monograph on the subject published in 1984 and from a search of several databases to find signs published in the first half of the 20th century. Results: The growth of radiological metaphorical signs naming was slow for several decades after the first one was published in 1918. It then increased rapidly until the 1980s encompassing all modalities and subspecialties. Recently the practice has shown a marked and steady decline. Conclusion: Metaphoric sign naming was a frequently reported contribution to the radiological literature in the second half of the 20th century corresponding with Radiology's growth as a descriptive discipline. Its decline since then may be a consequence of Radiology's evolution into a more analytic, data-driven field of inquiry.

  6. 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.

  7. History of metaphoric signs in radiology.

    Science.gov (United States)

    Baker, Stephen R; Noorelahi, Yasser M; Ghosh, Shanchita; Yang, Lily C; Kasper, David J

    2013-09-01

    To survey the nearly 100 year history of metaphoric sign naming in radiology describing the pace of their overall accumulation in the radiology canon, their specific rates of growth by modality and subspecialty and the characteristics of the referents to which the signs are attached. A comprehensive list of metaphoric signs was compiled from a search of articles in several major English language radiology journals, from a roster compiled in a monograph on the subject published in 1984 and from a search of several databases to find signs published in the first half of the 20th century. The growth of radiological metaphorical signs naming was slow for several decades after the first one was published in 1918. It then increased rapidly until the 1980s encompassing all modalities and subspecialties. Recently the practice has shown a marked and steady decline. Metaphoric sign naming was a frequently reported contribution to the radiological literature in the second half of the 20th century corresponding with Radiology's growth as a descriptive discipline. Its decline since then may be a consequence of Radiology's evolution into a more analytic, data-driven field of inquiry. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  8. Results of the radiological survey at 3 Crammond Street, Colonie, New York (AL135)

    International Nuclear Information System (INIS)

    Marley, J.L.

    1987-12-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 3 Crammond Street in Colonie, New York was subject of a radiological investigation initiated November 14, 1985. The property was a vacant, asphalt-paved lot. A diagram of the property showing the approximate boundaries and the 5-m grid network established for measurements is shown. The rectangular lot included in the radiological survey was /approximately/18.5 m wide by 33.7 m deep. A front view of the property is shown. 13 refs., 4 figs., 5 tabs

  9. Results of the radiological survey at 7 Maplewood Avenue, Colonie, New York

    International Nuclear Information System (INIS)

    Marley, J.L.

    1987-12-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 7 Maplewood Avenue in Colonie, New York, was the subject of a radiological investigation initiated May 8, 1986. The residential property consisted of a house and a garage located on a rectangular lot. An asphalt-paved driveway connected the garage with the street. A diagram of the property showing the approximate boundaries and the 4-m grid network established for measurements outside the house is shown. The lot included in the radiological survey was /approximately/12 m wide by 35.5 m deep. Front and rear views of the property are shown. 13 refs., 5 figs., 5 tabs

  10. Results of the radiological survey at 23 Yardboro Avenue, Albany, New York (AL138)

    International Nuclear Information System (INIS)

    Marley, J.L.

    1987-12-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 23 Yardboro Avenue in Albany, New York (AL138) was the subject of a radiological investigation initiated May 7, 1986. The property was a residence with a one and one-half-story frame house located on a rectangular lot. An asphalt driveway or parking area is located at the east side of the house. An area of /approximately/10 m /times/ 14 m at the rear was inaccessible. A diagram of the property showing the approximate boundaries and the 3-m grid network established for measurements outside the house is shown. The lot included in the radiological survey was /approximately/14 m wide by 36 m deep. Front and rear views of the property are shown. 13 refs., 5 figs., 5 tabs

  11. Results of the radiological survey at 1054 Central Avenue, Albany, New York (AL211)

    International Nuclear Information System (INIS)

    Hall, S.C.; Marley, J.L.

    1987-11-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 1054 Central Avenue in Albany, New York was the subject of a radiological investigation initiated August 27, 1986. The commercial property consists of a two-story frame and block building located on a rectangular lot. An asphalt drive connects the working areas to the street. A diagram of the property showing the approximate boundaries and the 5-m grid network established for measurements outside the building is shown. The lot included in the radiological survey was /approximately/13 m wide by 43 m deep. Front and side views of the property are shown. 13 refs., 5 figs., 5 tabs

  12. Results of the radiological survey at 23 Lily Street, Albany, New York

    International Nuclear Information System (INIS)

    Espegren, M.L.; Marley, J.L.; Carrier, R.F.

    1987-12-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 23 Lily Street in Albany, New York (AL174), was the subject of a radiological investigation initiated July 21, 1986. The residential property consists of a two-story frame house located on a rectangular lot. An asphalt driveway connects the house to the street. A diagram of the property showing the approximate boundaries and the 5-m grid network established for measurements outside the house is shown. The lot included in the radiological survey was /approximately/20 m wide by 30 m deep. Front and side views of the property are shown. 13 refs., 5 figs., 5 tabs

  13. Results of the radiological survey at 21 Lily Street, Albany, New York

    International Nuclear Information System (INIS)

    Espegren, M.L.; Marley, J.L.

    1987-12-01

    A number of properties in the Albany/Colonie area have been identified as being potentially contaminated with uranium originating from the former National Lead Company's uranium forming plant in Colonie, New York. The property at 21 Lily Street in Albany, New York (AL164) was the subject of a radiological investigation initiated July 16, 1986. The residential property consists of a two-story frame house located on a rectangular lot. A gravel drive is located on the lot. A diagram of the property showing the approximate boundaries and the 5-m grid network established for measurements outside the house is shown. The lot included in the radiological survey was /approximately/21 m wide by 26 m deep. Front and rear views of the property are shown. 13 refs., 5 figs., 5 tabs

  14. Estimating radiological background using imaging spectroscopy

    Energy Technology Data Exchange (ETDEWEB)

    Bernacki, Bruce E.; Schweppe, John E.; Stave, Sean C.; Jordan, David V.; Kulisek, Jonathan A.; Stewart, Trevor N.; Seifert, Carolyn E.

    2014-06-13

    Optical imaging spectroscopy is investigated as a method to estimate radiological background by spectral identification of soils, sediments, rocks, minerals and building materials derived from natural materials and assigning tabulated radiological emission values to these materials. Radiological airborne surveys are undertaken by local, state and federal agencies to identify the presence of radiological materials out of regulatory compliance. Detection performance in such surveys is determined by (among other factors) the uncertainty in the radiation background; increased knowledge of the expected radiation background will improve the ability to detect low-activity radiological materials. Radiological background due to naturally occurring radiological materials (NORM) can be estimated by reference to previous survey results, use of global 40K, 238U, and 232Th (KUT) values, reference to existing USGS radiation background maps, or by a moving average of the data as it is acquired. Each of these methods has its drawbacks: previous survey results may not include recent changes, the global average provides only a zero-order estimate, the USGS background radiation map resolutions are coarse and are accurate only to 1 km – 25 km sampling intervals depending on locale, and a moving average may essentially low pass filter the data to obscure small changes in radiation counts. Imaging spectroscopy from airborne or spaceborne platforms can offer higher resolution identification of materials and background, as well as provide imaging context information. AVIRIS hyperspectral image data is analyzed using commercial exploitation software to determine the usefulness of imaging spectroscopy to identify qualitative radiological background emissions when compared to airborne radiological survey data.

  15. International Society of Radiology and Radiation Protection

    International Nuclear Information System (INIS)

    Standertskjoeld-Nordenstam, C.G.

    2001-01-01

    The purpose of the International Society of Radiology (ISR), as being the global organization of radiologists, is to promote and help co-ordinate the progress of radiology throughout the world. In this capacity and as a co-operating organization of the IAEA, the ISR has a specific responsibility in the global radiological protection of patients. Globally, there are many users of medical radiation, and radiology may be practised in the most awkward circumstances. The individuals performing X ray studies as well as those interpreting them may be well trained, as in industrialized parts of the world, but also less knowledgeable, as in developing areas. The problems of radiological protection, both of patients and of radiation workers, still exist, and radiation equipment is largely diffused throughout the world. That is why a conference like this is today as important as ever. Radiation protection is achieved through education, on the one hand, and legislation, on the other. Legislation and regulation are the instruments of national authorities. The means of the ISR are education and information. Good radiological practice is something that can be taught. The ISR is doing this mainly through the biannual International Congress of Radiology (ICR), now arranged in an area of radiological need; the three previous ICRs were in China, in India and in South America; the next one is going to be in Mexico in 2002. The goal of the ICR is mainly to be an instructive and educational event, especially designed for the needs of its surrounding region. The ISR is aiming at producing educational material. The International Commission on Radiological Education (ICRE), as part of the ISR, is launching the production of a series of educational booklets, which also include radiation protection. The ICRE is actively involved in shaping and organizing the educational and scientific programme of the ICRs

  16. Radiological control of food importation products

    International Nuclear Information System (INIS)

    Aguirre G, J.

    2003-01-01

    Nowadays exists the possibility of marketing products possibly polluted with radioactive isotopes, by that some countries like Mexico, they have been given to the task of creating legal bases and the necessary infrastructure with the end of carrying out the radiological surveillance of nutritious import products. In this work the legal bases that our country has established for the radiological control are presented besides the results of this radiological control carried out through the gamma spectroscopy analysis of nutritious import products sent to our country through diverse companies that import foods produced mainly in European countries. (Author)

  17. The history of clinical musculoskeletal radiology.

    Science.gov (United States)

    Sofka, Carolyn M; Pavlov, Helene

    2009-05-01

    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. Advances in cross-sectional imaging such as CT and MR imaging and educational and research endeavors have contributed further to the growth of musculoskeletal radiology as a distinct subspecialty.

  18. Problem-based learning and radiology

    International Nuclear Information System (INIS)

    Thurley, P.; Dennick, R.

    2008-01-01

    The Royal College of Radiologists recently published documents setting out guidelines to improve the teaching of radiology to medical students. These included recommendations that clinicians who teach radiology should be aware of newer educational techniques, such as problem-based learning, and should be involved in the development of curricula and assessment in medical schools. This review aims to introduce the educational theories behind problem-based learning and describe how a problem-based learning tutorial is run. The relevance of problem-based learning to radiology and the potential advantages and disadvantages are discussed

  19. Justification and radiology: Some ethical considerations

    International Nuclear Information System (INIS)

    Sia, S.

    2009-01-01

    This paper, which seeks to address the issue of justification in radiology, intends firstly to comment on the current discussion of the ethical foundation of radiological practice that focuses on the move from utilitarianism to the rights-centred criterion. Secondly, and this constitutes the bulk of the paper, it aims to offer a philosophical perspective, which is hoped will lead to a consideration of certain specific areas in ethical decision-making in the attempts here to deal with the main issue of justification in radiology. (authors)

  20. Justification and radiology: some ethical considerations.

    Science.gov (United States)

    Sia, Santiago

    2009-07-01

    This paper, which seeks to address the issue of justification in radiology, intends firstly to comment on the current discussion of the ethical foundation of radiological practice that focuses on the move from utilitarianism to the rights-centred criterion. Secondly, and this constitutes the bulk of the paper, it aims to offer a philosophical perspective, which is hoped will lead to a consideration of certain specific areas in ethical decision-making in the attempts here to deal with the main issue of justification in radiology.

  1. Casualty Estimation for Nuclear and Radiological Weapons

    Science.gov (United States)

    2016-06-01

    I N S T I T U T E F O R D E F E N S E A N A L Y S E S Casualty Estimation for Nuclear and Radiological Weapons Carl A. Curling INSTITUTE FOR...S E S IDA Paper P-5220 Casualty Estimation for Nuclear and Radiological Weapons Carl A. Curling This page is intentionally blank. iii Executive... nuclear devices (IND), as well as conventional nuclear weapons .”1 This analysis describes exemplar nuclear and radiological weapon threats; the

  2. Aplastic anemia in Japanese radiological technicians

    International Nuclear Information System (INIS)

    Kitabatake, T.; Watanabe, T.; Saito, A.; Nakamura, M.; Shiohama Hospital, Mie

    1976-01-01

    Among the Japanese radiological technicians, four deaths from aplastic anemia have been reported after 1930. On the other hand, during the period from 1930 to 1960, the population of radiological technicians is estimated to be 74,400 man-years, in which 0.5 aplastic anemias are expected. However, actually three died from aplastic anemia. This difference is statistically significant at the 1% level. While, in the period from 1961 to 1973, the observed value is 1 against 0.7 expected. It is concluded that aplastic anemia had been induced frequently among the Japanese radiological technicians in the era when there was much exposure to occupational radiation. (orig.) [de

  3. Radiologic techniques in evaluation endocrine disorders

    International Nuclear Information System (INIS)

    Martino, C.R.; Schultz, C.L.; Butler, H.E.; Haaga, J.R.

    1988-01-01

    This paper discusses evaluation of normal and diseased endocrine organs that has been facilitated by the development of new radiologic-imaging techniques including nuclear medicine, ultrasound, computed tomography, and magnetic resonance imaging. With improvement in resolution and tissue contrast, abnormalities as small as 5 mm can now be imaged with these modalities. Endocrinologists and clinicians involved in the evaluation and diagnosis of patients with endocrine diseases can be substantially aided by a proper radiologic workup. The authors describe and illustrate various radiologic techniques that are useful for evaluating thyroid and parathyroid derangements

  4. Radiologic findings of thoracic trauma

    Directory of Open Access Journals (Sweden)

    Akgul Ozmen C

    2017-08-01

    Full Text Available Cihan Akgul Ozmen,1 Serdar Onat,2 Delal Aycicek3 1Department of Radiology, 2Department of Chest Surgery, Dicle University School of Medicine, Diyarbakir, 3Radiology Unit, Siirt State Hospital, Siirt, Turkey Introduction: Chest trauma may be blunt or penetrating and the chest is the third most common trauma region. It is a significant cause of mortality. Multidetector computed tomography (MDCT has been an increasingly used method to evaluate chest trauma because of its high success in detecting tissue and organ injuries. Herein, we aimed to present MDCT findings in patients with blunt and penetrating chest trauma admitted to our department. Methods: A total of 240 patients admitted to the emergency department of our hospital between April 2012 and July 2013 with a diagnosis of chest trauma who underwent MDCT evaluations were included. Most of the patients were male (83.3% and victims of a blunt chest trauma. The images were analyzed with respect to the presence of fractures of bony structures, hemothorax, pneumothorax, mediastinal organ injury, and pulmonary and vascular injuries. Results: MDCT images of the 240 patients yielded a prevalence of 41.7% rib fractures, 11.2% scapular fractures, and 7.5% clavicle fractures. The prevalence of thoracic vertebral fracture was 13.8% and that of sternal fracture was 3.8%. The prevalence of hemothorax, pneumothorax, pneumomediastinum, and subcutaneous emphysema was 34.6%, 62.1%, 9.6%, and 35.4%, respectively. The prevalence of rib, clavicle, and thoracic vertebral fractures and pulmonary contusion was higher in the blunt trauma group, whereas the prevalence of hemothorax, subcutaneous emphysema, diaphragmatic injury, and other vascular lacerations was significantly higher in the penetrating trauma group than in the blunt trauma group (p<0.05. Conclusion: MDCT images may yield a high prevalence of fracture of bony structures, soft tissue lacerations, and vascular lesions, which should be well understood by

  5. Below Regulatory Conern Owners Group: Radiologic impact of accidents and unexpected events from disposal of BRC waste

    International Nuclear Information System (INIS)

    Waite, D.A.; Dolan, M.M.; Rish, W.R.; Rossi, A.J.; McCourt, J.E.

    1989-07-01

    This report determines the radiological impact of accidents and unexpected events in the disposal of Below Regulatory Concern (BRC) waste. The accident analysis considers the transportation, incineration, and disposal of BRC waste as municipal solid waste. The potential greatest radiological impact for each type of accident is identified through the use of event trees. These accident events are described in terms of the generic waste property(ies) (e.g., flammability, dispersibility, leachability, and solubility) that cause the greatest radiological impact. 7 refs., 32 figs., 12 tabs

  6. General Employee Radiological Training and Radiological Worker Training: Program management manual

    International Nuclear Information System (INIS)

    1992-10-01

    This manual defines and describes the DOE General Employee Radiological Training (GERT) and Radiological Worker I and II (RW I and II) Training programs. It includes material development requirements, standards and policies, and program administration. This manual applies to General Employee Radiological Training and Radiological Worker Training at all DOE contractor sites. The training materials of both GERT and RW I and II training reflect the requirements identified in the DOE Radiological Control Manual and DOE Order 5480.11. The training programs represent the minimum requirement for the standardized core materials. Each contractor shall implement the program in its entirety and may augment the standardized core materials to increase the general employee and radiological worker level of competency

  7. Deepening the reform of interventional radiology education and speeding up the development of interventional radiology

    International Nuclear Information System (INIS)

    Lu Chuan; Liu Linxiang; Cheng Yongde

    2010-01-01

    For recent years, although interventional radiology in China has achieved rapid development, it is still facing some rigorous challenges, such as the lack of personnel in interventional field and the flowing-away of certain patients who are definitely suitable for interventional therapy. This paper aims to discuss the reform of interventional radiology education for the undergraduates, postgraduates and clinical practitioners in the medical colleges in order to seek effective solutions to these issues the interventional radiology has confronted with. (authors)

  8. 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.)

  9. Radiologic findings of pulmonary endometriosis

    International Nuclear Information System (INIS)

    Kim, Seon Bok; Lee, Eil Seong; Jung, Hae Kyoung; Kim, Uk Jung; Yi, Jeong Geun; Kang, Ik Won; Kook, Shin Ho; Park, Jae Sung; Ryu, Dae Sik

    1998-01-01

    To describe the radiologic findings of pulmonary endometriosis. This study involved five patients with catamenial hemoptysis diagnosed as pulmonary endometriosis. All cases were diagnosed on the basis of bronchoscopic abnormalities. In one patient, endometrial glandular cells were seen on transthoracic fine needle aspiration biopsy. In three, hemoptysis ceased after Danazol treatment. The pattern, location and number of parenchymal abnormalities and the presence or absence of pleural lesion were analyzed retrospectively on plain chest radiographs (n=3D5) and CT scans(n=3D5). Follow-up study for each menstrual period was performed in two cases and changes from the initial lesion were assessed. Plain chest radiographic findings showed focal ground-glass opacity in three cases;two were in the right lung and one in the left. CT findings included ground-glass attenuation (n=3D3) and a mixed pattern of ground-glass attenuations and consolidations(n=3D2). Sites were single in four cases, and in one case, there were two; thus there were in all six lesions. Five of these were located in the right lung and subpleural region, continving to the pleura. Pleural lesion was not detected on either chest radiographs or CT scans. Follow-up CT scans (n=3D2) showed a similar lesion at the same site. In patient with repeated catamenial hemoptysis, CT may be helpful for the diagnosis of pulmonary endometriosis by exclusion of other diseases.=20

  10. International Commission on Radiological Protection

    International Nuclear Information System (INIS)

    Mettler, F.A.

    2001-01-01

    The International Commission on Radiological Protection (ICRP) has been involved with protection of patients in medicine since the commission was formed in 1928. The past and current work of the commission emphasizes the importance of patient protection. Committee 3 is concerned with the protection of persons and unborn children when ionizing radiation is used for medical diagnosis, therapy of for biomedical research as well as with the assessment of the medical consequences of accidental exposures. The current committee membership includes eleven practicing physicians and four physicists from ten different countries. The current work of the committee has centred on producing short, readable, user friendly documents related to important and current issues. In this regard the committee and task groups have just published a document on Pregnancy and Medical Radiation. A document on Avoidance of Radiation Injuries from Medical Interventional Procedures is in press, and two documents, Prevention of Accidents to Patients undergoing Radiation Therapy, and Management of Patient Dose in Computed Tomography are being finalized for publication. Some of these documents have been put on the Internet for comment, and many useful comments have been received before manuscript completion

  11. Key parameters controlling radiology departments

    International Nuclear Information System (INIS)

    Busch, Hans-Peter

    2011-01-01

    For radiology departments and outstanding practises control and optimization of processes demand an efficient management based on key data. Systems of key data deliver indicators for control of medical quality, service quality and economics. For practices effectiveness (productivity), for hospitals effectiveness and efficiency are in the focus of economical optimization strategies. Task of daily key data is continuous monitoring of activities and workflow, task of weekly/monthly key data is control of data quality, process quality and achievement of objectives, task of yearly key data is determination of long term strategies (marketing) and comparison with competitors (benchmarking). Key parameters have to be defined clearly and have to be available directly. For generation, evaluation and control of key parameters suitable forms of organization and processes are necessary. Strategies for the future will be directed more to the total processes of treatment. To think in total processes and to steer and optimize with suitable parameters is the challenge for participants in the healthcare market of the future. (orig.)

  12. External plans for radiological emergency

    International Nuclear Information System (INIS)

    Suarez, G.; Vizuet G, J.; Benitez S, J.A.

    1999-01-01

    Since 1989, the National Institute of Nuclear Research in Mexico shares in the task of Food and Water Control corresponding to the FT-86 task force of External Plans for Radiological Emergency (PERE), in charge of the Veracruz Health Services. In the PERE preparation stage previous actions are necessary developed for the preparation and updating of this plan and the task organization with the purpose to maintaining standing and operable in any time and circumstance, the capability to response in the face of an emergency. This stage englobes activities which must be realized before to carry out the Plan as they are the specialized training of personnel which participates and the execution of exercises and simulacrums. Until 1998, training and exercises for this task had been realized under diverse possible sceneries but in conditions that simulated the presence of radioactive material. For this reason, it should be emphasized the training realized during the days 6th, 7th, 8th July, 1999, in the emergency planning zone of the Plan, which to carry out using radioactive material. The National Institute of Nuclear Research had in charge of the training. This work describes all the activities for the realization of this training. (Author)

  13. Radiological methods in liver diagnosis

    International Nuclear Information System (INIS)

    Boeck, N.M.

    1982-01-01

    In 63 localized masses in a group of 169 patients, CT was found to be the most reliable diagnostic method with an accuracy of 97%, a sensitivity of 95%, and a specificity of 97%. With an accuracy of 87%, a sensitivity of 75% and a specificity of 95%, sonography was more efficient than scintiscanning which had an accuracy of 73%, a sensitivity of 71%, and a specificity of 63%. CT and sonography were further compared in a group of 600 patients with 150 proved localized masses. With an accuracy of 82%, a sensitivity of 66% and a specificity of 87%, sonography was clearly inferior to CT which had an accuracy of 97%, a sensitivity of 92%, and a specificity of 98%. CT provided a sure differential diagnosis in 73% of all cases and sonography in 60% (referred to the number of processes detected). Diffuse processes can be detected by radiological methods only at a certain intensity. Here, scintiscanning had a sensitivity of 66%, CT of 53% and somography of 47%. Angiography is indicated for pre-operative determination of the intrahepatic vascular and collateral supply and of the patency of the portal veins. Differential diagnosis is usually reliable. (orig./MG) [de

  14. Complications of pneumoconiosis: Radiologic overview

    Energy Technology Data Exchange (ETDEWEB)

    Jun, Jae Sup [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Jung, Jung Im, E-mail: jijung@catholic.ac.kr [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Kim, Hyo Rim [Department of Radiology, Yeouido St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Ahn, Myeong Im; Han, Dae Hee [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Ko, Jeong Min [Department of Radiology, St. Vincent Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Park, Seog Hee; Lee, Hae Giu [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Arakawa, Hiroaki [Department of Radiology, Dokkyo University School of Medicine (Japan); Koo, Jung-Wan [Department of Occupational and Environmental Medicine, Seoul St. Mary' s Hospital, The Catholic University of Korea (Korea, Republic of)

    2013-10-01

    A wide spectrum of pulmonary complications occurs in patients with pneumoconiosis. Those complications include chronic obstructive pulmonary disease, hemoptysis, pneumothorax, pleural disease, tuberculosis, autoimmune disease, anthracofibrosis, chronic interstitial pneumonia, and malignancy. Generally, imaging workup starts with plain chest radiography. However, sometimes, plain radiography has limited role in the diagnosis of pulmonary complications of pneumoconiosis because of overlapping pneumoconiotic infiltration. Computed tomography (CT), ultrasonography (US), and magnetic resonance imaging (MRI) are potentially helpful for the detection of pulmonary complications in patients with pneumoconiosis. CT, with its excellent contrast resolution, is more sensitive and specific method than plain radiograph in the evaluation of pulmonary abnormalities. CT is useful in detecting lung parenchymal abnormalities caused by infection, anthracofibrosis, and chronic interstitial pneumonia. Also, CT is valuable in distinguishing localized pneumothorax from bullae and aiding the identification of multiloculated effusions. US can be used in detection of complicated pleural effusions and guidance of the thoracentesis procedure. MRI is useful for differentiating between progressive massive fibrosis and lung cancer. Radiologists need to be familiar with the radiologic and clinical manifestations of, as well as diagnostic approaches to, complications associated with pneumoconiosis. Knowledge of the various imaging features of pulmonary complications of pneumoconiosis can enhance early diagnosis and improve the chance to cure.

  15. 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)

  16. The radiological accident in Cochabamba

    International Nuclear Information System (INIS)

    2004-07-01

    In April 2002 an accident involving an industrial radiography source containing 192 Ir occurred in Cochabamba, Bolivia, some 400 km from the capital, La Paz. A faulty radiography source container had been sent back to the headquarters of the company concerned in La Paz together with other equipment as cargo on a passenger bus. This gave rise to a potential for serious exposure for the bus passengers as well as for the company employees who were using and transporting the source. The Government of Bolivia requested the assistance of the IAEA under the terms of the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency. The IAEA in response assembled and sent to Bolivia a team composed of senior radiation safety experts and radiation pathology experts from Brazil, the United Kingdom and the IAEA to investigate the accident. The IAEA is grateful to the Government of Bolivia for the opportunity to report on this accident in order to disseminate the valuable lessons learned and help prevent similar accidents in the future

  17. Radiologic findings of epiploic appendagitis

    International Nuclear Information System (INIS)

    Oztunali, C.; Kara, T.

    2012-01-01

    Full text: Introduction: Epiploic appendagitis is a rare condition characterized by the ischemia and inflammation of the epiploic appendices of the colon. Its clinical features can mimic acute abdominal diseases such as diverticulitis and appendicitis. Objectives: The aim of this report is to present typical ultrasonography (US) and computed tomography (CT) features of this benign disease. Materials and method: A 44 year old man admitted to emergency department with a localized pain to umbilical region. His physical examination revealed rebound tenderness. He had no fever and his laboratory findings were normal. US examination showed a hyperechoic mass with a hypoechoic rim posterior to abdominal wall. Results: He was diagnosed with epiploic appendagitis and CT features confirmed the diagnosis. After a 5-day antibiotic treatment his clinical symptoms resolved. Conclusion: Epiploic appendagitis should be considered in the differential diagnosis of patients with an acute onset, localized pain. Because it is managed medically and has a self limited course, recognition of radiologic findings of this entity is important

  18. Radiological diagnosis of lung diseases

    International Nuclear Information System (INIS)

    Kauczor, H.U.; Heussel, C.P.; Thelen, M.

    2000-01-01

    Radiological cross-sectional imaging modalities, particularly computed tomography (CT) have become the mainstays for diagnosing lung disease in recent years. These enable morphological visualization of pathological processes with the greatest possible spatial resolution. Modern technical developments and complementary strategies have led to new applications and new functional assessments which need to be reviewed together with state-of-the-art techniques in nuclear imaging. The diagnosis of pulmonary embolism using spiral CT angiography and magnetic resonance (MR) angiography certainly belongs in this category. CT has become the an alternative modality of first choice, and it is also challenging pulmonary angiography as the gold standard. Direct visualization of patent pulmonary arteries and thromboembolic material is complemented by that of effects on the pulmonary parenchyma and right heart function; it also provides perfusion studies and MR-based flow measurement to assess hemodynamic compromise. Ventilation studies have long been a domain of nuclear imaging, and new techniques for the direct visualization of ventilation are emerging from recent developments in the field of MR imaging, for example, using hyperpolarized inert gases. New functional parameters of ventilation can be derived from these studies. For the diagnosis of metabolically active disease, such as tumor and pneumonia, CT offers very high sensitivity, for example, in screening for intrapulmonary nodules using low-dose CT and in the early detection of pulmonary infiltrates in high-risk patients. Especially for characterizing pulmonary nodules there is a need to combine nuclear medicine techniques, such as in positron-emission tomography. (orig.) [de

  19. Radiologic findings of granulomatous mastitis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Tae Gyu; Kim, Ji Young; Jeong, Myeong Ja; Kim, Jae Hyung; Kim, Soung Hee; Kim, Soo Hyun; Jun, Woo Sun; Park, Kyeong Mee; Han, Se Hwan [Paik Hospital, Inje University College of Medicine, Seoul (Korea, Republic of)

    2008-08-15

    The describe the radiologic findings of granulomatous mastitis of the breast. This study included 19 patients (age range: 22 to 56 years; mean 37 years) with 22 lesions that were pathologically confirmed as having granulomatous mastitis. All the patients underwent a breast ultrasonography and 13 patients underwent a mammography. The results of the mammography revealed focal asymmetry (n = 9), multiple ill-defined isodense nodules (n 2), ill-defined nodular density on craniocaudal view (n = 1), and unremarkable finding (n = 1). The sonographic findings included continuous or discontinuous multiple tubular and nodular low echoic lesions (n = 7), ill-defined heterogeneously low echoic lesion (n = 5), irregular-shaped, ill-defined low echoic mass (n = 4), fluid collection with internal floating materials suggesting the presence of an abscess (n = 4), ill-defined heterogeneously low echoic lesion and abscess (n = 1), and multiple ill-defined nodules (n = 1). In the case of granulomatous mastitis, the mammography results indicate a lack of specificity between normal findings and focal asymmetry. The sonographic findings indicate that ill-defined heterogeneously low echoic lesions or irregular shaped, ill-defined low echoic masses are difficult to differentiate from breast cancer. The sonographic findings of abscesses indicate a difficulty in differentiating them from cases of pyogenic mastitis. However, multiple tubular and nodular low echoic lesions, especially with a continuous appearance, should point to granulomatous mastitis, and is helpful in its differential diagnosis and treatment.

  20. Quality assurance system for radiology

    International Nuclear Information System (INIS)

    Yacovenco, Alejandro A.; Infantosi, Antonio F.C.; Tauhata, Luiz

    1999-01-01

    According to data published by the National Commission of Nuclear Energy (CNEN) it was observed that in Odontological Radiology more than 80% of the exams reveal entrance skin doses higher than 5,0 mGy, that approximately 85% of the dentists sub-develop the films and 40% of the equipment have low performance regarding collimation, filtration and other problems. This is a critical situation for the population regarding life quality and requires prompt attention from the sanitary authorities. Face an universe of 30,000 dentists in the state of Sao Paulo, it was necessary to organize a technical and administrative structure to establish procedures, elaborate training courses and create and adequate software system to control all the inspections. The inspection was based on monitoring the geometrical and exposure as well as in the implementation of internal procedures. It was also implemented a control of reject rate and a routine check of the control books. Results show a great improvement of the parameters in 152 of the X-ray tubes considered here. Entrance skin dose up to 2,5 mGy increased from 19% to 57%, field size up to 6 cm, increased from 33% to 96%, k Vp exactitude (135) and exposure time (67%) jumped to 100%. Also 100% were attained with regard to filtration, collimation and several internal procedures. But the results shown above, we can conclude that we are in the right direction and that all goals will be reached. (author)

  1. Radiologic findings of osteochondritis dissecans

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Seung; Choi, Choong Gon; Kang, Heung Sik; Lee, Seon Kyu; Kim, Chu Wan [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    1993-05-15

    To evaluate the radiographic characteristics of osteochondritis dissecans (OCD) and useful parameter for predicting mechanical stability, we retrospectively analysed 26 plain radiographic examinations and seven MR imagings in 28 cases of OCD in 24 patients. Typical radiologic findings were osteochondral defect with sclerotic rim of variable thickness and osteochondral fragment. Sites of osteochondral defect were medial (35.9%) or lateral (32%) femoral chondyle and medial (7.1%) or lateral (25%) side of talar dome. Sclerotic rim was seen in 24 cases (85%) and osteochondral fragments including nine loose bodies were seen in 21 cases (75%). The size of osteochondral defect with unstable fragment (average 2.05 cm) and loose body (2.04 cm) in the knee joint were similar to, but statistically larger than that with stable fragment (1.35 cm). All osteochondral defects were well visualized on MR images. Abnormalities of articular cartilage and effusion in the interface between the parent bone and fragment were seen in five cases of which there were confirmed three unstable cases arthroscopically. We concluded that size of defect may be a good parameter for predicting mechanical stability and MRI may be useful in the diagnosis of OCD and determining the methods of treatment.

  2. Radiologic findings of osteochondritis dissecans

    International Nuclear Information System (INIS)

    Kim, Jae Seung; Choi, Choong Gon; Kang, Heung Sik; Lee, Seon Kyu; Kim, Chu Wan

    1993-01-01

    To evaluate the radiographic characteristics of osteochondritis dissecans (OCD) and useful parameter for predicting mechanical stability, we retrospectively analysed 26 plain radiographic examinations and seven MR imagings in 28 cases of OCD in 24 patients. Typical radiologic findings were osteochondral defect with sclerotic rim of variable thickness and osteochondral fragment. Sites of osteochondral defect were medial (35.9%) or lateral (32%) femoral chondyle and medial (7.1%) or lateral (25%) side of talar dome. Sclerotic rim was seen in 24 cases (85%) and osteochondral fragments including nine loose bodies were seen in 21 cases (75%). The size of osteochondral defect with unstable fragment (average 2.05 cm) and loose body (2.04 cm) in the knee joint were similar to, but statistically larger than that with stable fragment (1.35 cm). All osteochondral defects were well visualized on MR images. Abnormalities of articular cartilage and effusion in the interface between the parent bone and fragment were seen in five cases of which there were confirmed three unstable cases arthroscopically. We concluded that size of defect may be a good parameter for predicting mechanical stability and MRI may be useful in the diagnosis of OCD and determining the methods of treatment

  3. Contained radiological analytical chemistry module

    Science.gov (United States)

    Barney, David M.

    1989-01-01

    A system which provides analytical determination of a plurality of water chemistry parameters with respect to water samples subject to radiological contamination. The system includes a water sample analyzer disposed within a containment and comprising a sampling section for providing predetermined volumes of samples for analysis; a flow control section for controlling the flow through the system; and a gas analysis section for analyzing samples provided by the sampling system. The sampling section includes a controllable multiple port valve for, in one position, metering out sample of a predetermined volume and for, in a second position, delivering the material sample for analysis. The flow control section includes a regulator valve for reducing the pressure in a portion of the system to provide a low pressure region, and measurement devices located in the low pressure region for measuring sample parameters such as pH and conductivity, at low pressure. The gas analysis section which is of independent utility provides for isolating a small water sample and extracting the dissolved gases therefrom into a small expansion volume wherein the gas pressure and thermoconductivity of the extracted gas are measured.

  4. Thematic plan on diagnostic radiology

    International Nuclear Information System (INIS)

    2003-01-01

    Due to the vital importance of diagnostic radiology in both the diagnosis and management of disease processes, there is a need for a greater coherent international effort to help the developing nations create strategies for the incorporation of imaging into their healthcare systems. To meet the needs of such countries, a comprehensive programme is required to take into consideration the availability of local expertise (medical and technical), the infrastructure (stable electrical supply, water and air-conditioning) and the disease pattern or burden. In short, the total solution requires coordinating the International Atomic Energy Agency efforts with those of other partners. The Agency already has programmes in nuclear medicine and radiation therapy supported by activities in dosimetry and medical physics. Through the Technical Co-operation fund the Agency already supports projects in some areas of diagnostic imaging, dosimetry and radiation protection, but it lacks a comprehensive programme to provide a systematic approach focusing on the medical aspects of imaging science and including all the imaging technologies. Member States require the Agency's assistance in this area since no single UN organisation has the resources or the expertise to do the entire job without help. This document presents the proposed programme strategy and action plan

  5. Lessons of the radiological accident in Goiania

    International Nuclear Information System (INIS)

    Alves, R.N.; Xavier, A.M.; Heilbron, P.F.L.

    1998-01-01

    On the basis of the lessons teamed from the radiological accident of Goiania, actions are described which a nuclear regulatory body should undertake while responding to an accident of this nature. (author)

  6. Radiological safety training for uranium facilities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-02-01

    This handbook contains recommended training materials consistent with DOE standardized core radiological training material. These materials consist of a program management guide, instructor`s guide, student guide, and overhead transparencies.

  7. Leadership and management in quality radiology.

    Science.gov (United States)

    Lau, Ls

    2007-07-01

    The practice of medical imaging and interventional radiology are undergoing rapid change in recent years due to technological advances, workload escalation, workforce shortage, globalisation, corporatisation, commercialisation and commoditisation of healthcare. These professional and economical changes are challenging the established norm but may bring new opportunities. There is an increasing awareness of and interest in the quality of care and patient safety in medical imaging and interventional radiology. Among the professional organisations, a range of quality systems are available to address individual, facility and system needs. To manage the limited resources successfully, radiologists and professional organisations must be leaders and champion for the cause of quality care and patient safety. Close collaboration with other stakeholders towards the development and management of proactive, long-term, system-based strategies and infrastructures will underpin a sustainable future in quality radiology. The International Radiology Quality Network can play a useful facilitating role in this worthwhile but challenging endeavour.

  8. Role of Radiology in Forensic Dentistry

    Directory of Open Access Journals (Sweden)

    T Chandrasekhar

    2011-01-01

    Full Text Available Forensic radiology is a specialized area of medical imaging utilizing radiological techniques to assist physicians and pathologists in matter pertaining to the law. Postmortem dental radiographs are the most consistent part of the antemortem records that can be transmitted during the forensic examination procedures. Pathologists regularly use radiographic images during the course of autopsy to assist them in identification of foreign bodies or determination of death. Forensic radiology can be used in suspicious death or murder, in analysis of adverse medical events, solving legal matters, to detect child abuse, drug trafficking, body identification and disease identification. Using the possibilities of radiology, special characteristics of the internal structures of the dentomaxillofacial region can be revealed. We can also detect endodontic treatments, healing extraction sockets, implants or even tooth colored restoration. Therefore, we can give answers to problems dealing with identification procedures, mass disaster and dental age estimation.

  9. Indicators on radiological protection in radiodiagnosis

    International Nuclear Information System (INIS)

    Tilly, J.; Ghilardi Netto, T.

    1998-01-01

    This work shows a set of indexes whose periodical collection allows supporting average radiological practices. These were obtained from measurements, health services registers and demographic reports to express features of radiodiagnosis employed in Paran in south Brazil

  10. Leadership and management in quality radiology

    Science.gov (United States)

    2007-01-01

    The practice of medical imaging and interventional radiology are undergoing rapid change in recent years due to technological advances, workload escalation, workforce shortage, globalisation, corporatisation, commercialisation and commoditisation of healthcare. These professional and economical changes are challenging the established norm but may bring new opportunities. There is an increasing awareness of and interest in the quality of care and patient safety in medical imaging and interventional radiology. Among the professional organisations, a range of quality systems are available to address individual, facility and system needs. To manage the limited resources successfully, radiologists and professional organisations must be leaders and champion for the cause of quality care and patient safety. Close collaboration with other stakeholders towards the development and management of proactive, long-term, system-based strategies and infrastructures will underpin a sustainable future in quality radiology. The International Radiology Quality Network can play a useful facilitating role in this worthwhile but challenging endeavour. PMID:21614284

  11. Apparatus for safeguarding a radiological source

    Science.gov (United States)

    Bzorgi, Fariborz M

    2014-10-07

    A tamper detector is provided for safeguarding a radiological source that is moved into and out of a storage location through an access porthole for storage and use. The radiological source is presumed to have an associated shipping container approved by the U.S. Nuclear Regulatory Commission for transporting the radiological source. The tamper detector typically includes a network of sealed tubing that spans at least a portion of the access porthole. There is an opening in the network of sealed tubing that is large enough for passage therethrough of the radiological source and small enough to prevent passage therethrough of the associated shipping cask. Generally a gas source connector is provided for establishing a gas pressure in the network of sealed tubing, and a pressure drop sensor is provided for detecting a drop in the gas pressure below a preset value.

  12. Corporate social responsibility of future radiology professionals.

    Science.gov (United States)

    Collins, Sandra K; Collins, Kevin S

    2011-01-01

    Plagued by difficult economic times, many radiology managers may find themselves faced with ethical dilemmas surrounding ongoing organizational pressures to maintain high levels of productivity with restricted resources. This often times tests the level of moral resilience and corporate social consciousness of even the most experienced radiology professionals. A study was conducted to determine what Corporate Social Responsibility (CSR) orientation and viewpoint future radiology professionals may have. The results of the study indicate that these study participants may initially consider patient care more important than profit maximization. Study results indicate that these specific future radiology professionals will not need laws, legal sanctions, and intensified rules to force them to act ethically. However,they may need ongoing training as to the necessity of profit maximization if they seek the highest quality of care possible for their patients.

  13. Improving efficiency in the radiology department

    Energy Technology Data Exchange (ETDEWEB)

    Towbin, Alexander J.; Perry, Laurie A. [Cincinnati Children' s Hospital Medical Center, Department of Radiology, Cincinnati, OH (United States); Larson, David B. [Stanford University School of Medicine, Department of Radiology, Stanford, CA (United States)

    2017-06-15

    The modern radiology department is built around the flow of information. Ordering providers request imaging studies to be performed, technologists complete the work required to perform the imaging studies, and radiologists interpret and report on the imaging findings. As each of these steps is performed, data flow between multiple information systems, most notably the radiology information system (RIS), the picture archiving and communication system (PACS) and the voice dictation system. Even though data flow relatively seamlessly, the majority of our systems and processes are inefficient. The purpose of this article is to describe the radiology value stream and describe how radiology informaticists in one department have worked to improve the efficiency of the value stream at each step. Through these examples, we identify and describe several themes that we believe have been crucial to our success. (orig.)

  14. Radiological dose assessment for vault storage concepts

    Energy Technology Data Exchange (ETDEWEB)

    Richard, R.F.

    1997-02-25

    This radiological dose assessment presents neutron and photon dose rates in support of project W-460. Dose rates are provided for a single 3013 container, the ``infloor`` storage vault concept, and the ``cubicle`` storage vault concept.

  15. Regional radiological observations of the environment

    International Nuclear Information System (INIS)

    2014-11-01

    After having recalled the objective of regional radiological observations (establishment of an updated referential of radioactivity levels in some parts of the environment which are typical of the concerned territory), and indicated the three main steps of these observations (definition of a methodology which may differ from one territory to the other, sampling and analysis, assessment of the radiological status of the studied territory), this report presents a methodology which can be applied to big rivers and predominantly agricultural territories. The radiological observations of different areas are reported (Val de Loire, Rhone valley, areas of persistence like mountains, or mining areas). Maps indicate the sampling location and the analysed products (food, soil, plants) and report of the ground or aquatic environment analysis, or available data and sampling strategy are given. The New Caledonia radiological observation is also reported

  16. Recommended radiological controls for tritium operations

    International Nuclear Information System (INIS)

    Mansfield, G.

    1992-01-01

    This informal report presents recommendations for an adequate radiological protection program for tritium operations. Topics include hazards analysis, facility design, personnel protection equipment, training, operational procedures, radiation monitoring, to include surface and airborne tritium contamination, and program management

  17. 21 CFR 892.1940 - Radiologic quality assurance instrument.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Radiologic quality assurance instrument. 892.1940... (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1940 Radiologic quality assurance instrument. (a) Identification. A radiologic quality assurance instrument is a device intended for medical...

  18. The preference of radiology as a postgraduate medical specialty ...

    African Journals Online (AJOL)

    ... had interest in radiology. Male sex was found to be a predictor for the choice of radiology. Conclusion: Career guidance/re-orientation and clarification of general misconception about radiology is necessary to avoid shortage of trained radiologists in the near future. Keywords: Career choice, Radiology, Medical students ...

  19. Radiological rickets in extremely low birthweight infants

    Energy Technology Data Exchange (ETDEWEB)

    Lyon, A.J.; McIntosh, N.; Wheeler, K.; Williams, J.E.

    1987-01-01

    Forty-eight infants of birthweight less than 1000 grams who survived for more than 28 days, had wrist X-rays to prospectively determine the incidence of radiological rickets. Twelve infants (25%) had normal X-rays throughout, 10 infants (21%) showed osteopoenia and 26 infants (54%) had classical changes or rickets of which 8 (17% of the total) had spontaneous fractures. There was poor correlation between peak values of serum alkaline phosphatase and the radiological changes.

  20. Quality assurance program on diagnostic radiology

    International Nuclear Information System (INIS)

    Yacovenco, Alejandro; Borges, Jose Carlos; Mota, Helvecio Correa

    1995-01-01

    Aiming to elaborate a methodology to optimize the performance of the Radiology Service of the Military Police Hospital, in Rio de Janeiro, some goals were established: improvement of the attendance to patients; improvement of the qualification of technicians; achievement and maintenance of high degrees of quality in each step of the radiological process; improvement of the image quality; optimization of dose per examination and cost reduction. (author). 8 refs., 3 figs