6 July 1979 Government Guidelines Versus Image Quality In Chest Radiography
Author Affiliations +
Proceedings Volume 0173, Application of Optical Instrumentation in Medicine VII; (1979) https://doi.org/10.1117/12.957125
Event: Application of Optical Instrumentation in Medicine VII, 1979, Toronto, Canada
Abstract
Recent Federal guidelines for radiation protection specify maximum exposure limits for certain radiological examinations performed in Federal institutions. For example, the maximum entrance skin exposure for a P.A. chest (23 cm) is recommended to be 30 milliroentgen. These guidelines, however, leave the criterion of image quality to the discretion of the institution. An investigation was done using an anthropomorphic chest phantom with simulated pulmoary nodules and pneumonia. A series of chest radiographs were produced at various entrance exposures by altering kilovoltage and image receptor. The exposures ranged from 5 mR to 65 mR. The variation of image quality obtainable within this range was categorized as least acceptable, acceptable, and most acceptable by three observers. The range of acceptability is correlated with entrance skin exposure.
© (1979) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John G. Pearce, John G. Pearce, Gary D. Gillan, Gary D. Gillan, Werner W. Roeck, Werner W. Roeck, Eric N. C. Milne, Eric N. C. Milne, } "Government Guidelines Versus Image Quality In Chest Radiography", Proc. SPIE 0173, Application of Optical Instrumentation in Medicine VII, (6 July 1979); doi: 10.1117/12.957125; https://doi.org/10.1117/12.957125
PROCEEDINGS
8 PAGES


SHARE
Back to Top