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13 March 2009 Analysis of the spectrum in phase-contrast mammography
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Proceedings Volume 7258, Medical Imaging 2009: Physics of Medical Imaging; 72584E (2009)
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States
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.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Adam M. Zysk, Qiaofeng Xu, Luis de Sisternes, Jovan G. Brankov, Miles N. Wernick, and Mark A. Anastasio "Analysis of the spectrum in phase-contrast mammography", Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 72584E (13 March 2009);

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