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19 September 1985 Scanned Orojection Digital Mammographic Imaging
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Film-screen mammography is the most sensitive means available for the detection of early breast cancer. Its performance, however, is often limited by the restricted latitude over which the gradient of the radiographic film Provides appreciable contrast and by film granularity. We are currently investigating means for acquiring the mammographic image directly in digital form, using a scanned fan-beam x-ray system and high resolution image intensifier coupled to a self-scanned photo-diode array. Such a system will potentially provide efficient scatter-rejection and images which are limited only by quantum fluctuation. At the same time it would make practical such image enhancement techniques as contrast amplification and unsharp masking as well as dual-energy image processing for the improved detection of calcifications. In this paper a prototype digital mammographic system is described and preliminary images of surgical specimens are presented.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. J. Yaffe, R. M. Nishikawa, A. Fenster, I. A. Cunningham, and G . E. Mawdsley "Scanned Orojection Digital Mammographic Imaging", Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985);

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