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Proceedings Paper

Examining wide-arc digital breast tomosynthesis: optimization using a visual-search model observer
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Paper Abstract

Mathematical model observers are expected to assist in preclinical optimization of image acquisition and reconstruction parameters. A clinically realistic and robust model observer platform could help in multiparameter optimizations without requiring frequent human-observer validations. We are developing search-capable visual-search (VS) model observers with this potential. In this work, we present initial results on optimization of DBT scan angle and the number of projection views for low-contrast mass detection. Comparison with human-observer results shows very good agreement. These results point towards the benefits of using relatively wider arcs and low projection angles per arc degree for improved mass detection. These results are particularly interesting considering that the FDA-approved DBT systems like Hologic Selenia Dimensions uses a narrow (15-degree) acquisition arc and one projection per arc degree.

Paper Details

Date Published: 18 March 2015
PDF: 5 pages
Proc. SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging, 94121S (18 March 2015); doi: 10.1117/12.2082986
Show Author Affiliations
Mini Das, Univ. of Houston (United States)
Zhihua Liang, Univ. of Houston (United States)
Howard C. Gifford, Univ. of Houston (United States)

Published in SPIE Proceedings Vol. 9412:
Medical Imaging 2015: Physics of Medical Imaging
Christoph Hoeschen; Despina Kontos, Editor(s)

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