Simultaneous objective measurements of dose and image quality in mammography

Y. Pochon; Ch Depeursinge; Ch Hessler; R. Raimondi; J. F. Valley

doi:10.1117/12.933834

Simultaneous objective measurements of dose and image quality in mammography

Y. Pochon, Ch Depeursinge, Ch Hessler, R. Raimondi, J. F. Valley

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3 Scopus citations

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.

Original language	English (US)
Pages (from-to)	238-245
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	347
DOIs	https://doi.org/10.1117/12.933834
State	Published - Dec 29 1982
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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AU - Depeursinge, Ch

AU - Hessler, Ch

AU - Raimondi, R.

AU - Valley, J. F.

PY - 1982/12/29

Y1 - 1982/12/29

N2 - 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.

AB - 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.

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Simultaneous objective measurements of dose and image quality in mammography

Abstract

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