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Proceedings Paper

Analysis of the spectrum in phase-contrast mammography
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Paper Abstract

It has been proposed that the sensitivity of breast lesion detection can be improved with phase-contrast mammographic imaging. The recently introduced clinical system by Konica-Minolta, for example, reportedly yields enhanced lesion detectability. We hypothesize that the use of an optimized x-ray spectrum will result in even better performance. To test this hypothesis, we have performed a study of several clinical spectra from Mo and W sources over a broad spectral range. In the study, we have incorporated established dose measurements from a simple breast phantom used in the digital mammography literature, which has been updated to incorporate breast density properties in addition to conventional attenuation information. Established phase-contrast imaging simulation techniques, which employed a Fresnel propagator, were used to generate edge-enhanced radiographs for analysis. In addition, detector sensitivity and tube loading parameters were incorporated into the analysis. The resulting mammography images were analyzed via measurement of object edge-enhanced contrast.

Paper Details

Date Published: 13 March 2009
PDF: 7 pages
Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 72584E (13 March 2009); doi: 10.1117/12.812146
Show Author Affiliations
Adam M. Zysk, Illinois Institute of Technology (United States)
Qiaofeng Xu, Illinois Institute of Technology (United States)
Luis de Sisternes, Illinois Institute of Technology (United States)
Jovan G. Brankov, Illinois Institute of Technology (United States)
Miles N. Wernick, Illinois Institute of Technology (United States)
Mark A. Anastasio, Illinois Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7258:
Medical Imaging 2009: Physics of Medical Imaging
Ehsan Samei; Jiang Hsieh, Editor(s)

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