Simultaneous objective measurements of dose and image quality in mammography

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

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Pages (from-to)238-245
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume347
DOIs
StatePublished - Dec 29 1982

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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