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Proceedings Paper

Coherent scatter imaging simulation for screening mammography
Author(s): Laila Hassan; Lubna Peerzada; Katie Kern; C. A. MacDonald
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Paper Abstract

Conventional mammography has poor contrast between healthy tissue and carcinoma due to small differences in attenuation. Since interference of coherently scattered radiation depends on the intermolecular spacing, it can provide new information with higher contrast. A Monte Carlo simulation was developed for coherent scatter imaging. The modeled design exploits a conventional scan slot mammography system with an additional anti-scatter grid tilted at the characteristic angle of carcinoma. Preliminary results are promising and agree with experimental measurements on phantom systems. The effect of changing grid tilt angle and sample detector distance were studied in order to begin system optimization. The system using a wide slot beam and simple anti-scatter grid has been designed to provide a localized map of tissue type that could be overlaid on the simultaneous conventional transmission image to provide an inexpensive, low dose adjunct to conventional screening mammography. The purpose of this work is to explore whether a screening mammography system can be designed to exploit coherent scatter to provide some tissue type information.

Paper Details

Date Published: 19 October 2012
PDF: 9 pages
Proc. SPIE 8509, Penetrating Radiation Systems and Applications XIII, 85090C (19 October 2012); doi: 10.1117/12.934916
Show Author Affiliations
Laila Hassan, Univ. at Albany, SUNY (United States)
Lubna Peerzada, Univ. at Albany, SUNY (United States)
Katie Kern, Univ. at Albany, SUNY (United States)
C. A. MacDonald, Univ. at Albany, SUNY (United States)

Published in SPIE Proceedings Vol. 8509:
Penetrating Radiation Systems and Applications XIII
Gary P. Grim; H. Bradford Barber, Editor(s)

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