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Proceedings Paper

Simultaneous Objective Measurements Of Dose And Image Quality In Mammography
Author(s): Y. Pochon; Ch. Depeursinge; Ch. Hessler; S. Raimondi; J-F. Valley
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Paper Abstract

The performance of a radiological system can be evaluated on the one hand by an objective determination of the quality of the produced image and, on the other hand, by the dose delivered to the patient. In order to measure these two factors in a single exposure a Kodak breast phantom has been modified so as to simulate the breast absorption. The dose distribution is measured with thermoluminescent detectors. By consideration of a theoretical model of the X-ray imaging in mammography, a single quality factor is computed from the contrast, the spatial resolution and the noise measured on the phantom image. We present results obtained in various working conditions, i.e. variable X-ray tube voltages, use of different screen-film combinations, use of a grid.

Paper Details

Date Published: 29 December 1982
PDF: 8 pages
Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); doi: 10.1117/12.933834
Show Author Affiliations
Y. Pochon, Swiss Federal Institute of Technology (Switzerland)
Ch. Depeursinge, Swiss Federal Institute of Technology (Switzerland)
Ch. Hessler, Hospital University (Switzerland)
S. Raimondi, Institute of Applied Radiophysics (Switzerland)
J-F. Valley, Institute of Applied Radiophysics (Switzerland)

Published in SPIE Proceedings Vol. 0347:
Application of Optical Instrumentation in Medicine X
Gary D. Fullerton; James A. Mulvaney; Arthur G. Haus; William S. Properzio, Editor(s)

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