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Proceedings Paper

Three-dimensional breast image reconstruction from a limited number of views
Author(s): Thomas G. McCauley; Alexander X. Stewart; Martin J. Stanton; Tao Wu; Walter Charles Phillips
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Paper Abstract

Typically in three-dimensional (3D) computed tomography (CT) imaging, hundreds or thousands of x-ray projection images are recorded. The image-collection time and patient dose required rule out conventional CT as a tool for screening mammography. We have developed a CT method that overcomes these limitations by using (1) a novel image collection geometry, (2) new digital electronic x-ray detector technology, and (3) modern image reconstruction procedures. The method, which we call Computed Planar Mammography (CPM), is made possible by the full-field, low-noise, high-resolution CCD-based detector design that we have previously developed. With this method, we need to record only a limited number (10 - 50) of low-dose x- ray images of the breast. The resulting 3D full breast image has a resolution in two orientations equal to the full detector resolution (47 microns), and a lower, variable resolution (0.5 - 10 mm) in the third orientation. This 3D reconstructed image can then be viewed as a series of cross- sectional layers, or planes, each at the full detector resolution. Features due to overlapping tissue, which could not be differentiated in a conventional mammogram, are separated into layers at different depths. We demonstrate the features and capabilities of this method by presenting reconstructed images of phantoms and mastectomy specimens. Finally, we discuss outstanding issues related to the further development of this procedure, as well as considerations for its clinical implementation.

Paper Details

Date Published: 25 April 2000
PDF: 12 pages
Proc. SPIE 3977, Medical Imaging 2000: Physics of Medical Imaging, (25 April 2000); doi: 10.1117/12.384513
Show Author Affiliations
Thomas G. McCauley, Rosenstiel Basic Medical Sciences Research Ctr./Brandeis Univ. (United States)
Alexander X. Stewart, Rosenstiel Basic Medical Sciences Research Ctr./Brandeis Univ. (United States)
Martin J. Stanton, Rosenstiel Basic Medical Sciences Research Ctr./Brandeis Univ. (United States)
Tao Wu, Rosenstiel Basic Medical Sciences Research Ctr./Brandeis Univ. (United States)
Walter Charles Phillips, Rosenstiel Basic Medical Sciences Research Ctr./Brandeis Univ. (United States)


Published in SPIE Proceedings Vol. 3977:
Medical Imaging 2000: Physics of Medical Imaging
James T. Dobbins III; John M. Boone, Editor(s)

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