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Proceedings Paper

Orientation dependent detectability of fiber-like signals in linear iterative image reconstruction for breast tomosynthesis
Author(s): Sean D. Rose; Ingrid Reiser; Emil Y. Sidky; Xiaochuan Pan
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Paper Abstract

We characterize the detectability of fiber-like signals in digital breast tomosynthesis (DBT) for linear iterative image reconstruction (IIR) algorithms. The detectability is investigated as a function of signal orientation and IIR regularization strength. The detectability is computed with a region-of-interest (ROI) Hotelling observer (HO) and applied to two linear IIR algorithms. Trends in detectability are compared with conspicuity of signals reconstructed in both simulation and real data studies. A common trend is observed with both algorithms in which signals oriented parallel to the detector and the plane containing the source-trajectory have lower detectability than their orthogonal counterparts at low regularization strengths. The orientation dependence is gradually reduced with increasing regularization strength. These trends in detectability are seen to match well with trends in the conspicuity of reconstructed signals in both simulation and real data studies.

Paper Details

Date Published: 6 July 2018
PDF: 7 pages
Proc. SPIE 10718, 14th International Workshop on Breast Imaging (IWBI 2018), 107180T (6 July 2018); doi: 10.1117/12.2318463
Show Author Affiliations
Sean D. Rose, The Univ. of Chicago (United States)
Ingrid Reiser, The Univ. of Chicago (United States)
Emil Y. Sidky, The Univ. of Chicago (United States)
Xiaochuan Pan, The Univ. of Chicago (United States)


Published in SPIE Proceedings Vol. 10718:
14th International Workshop on Breast Imaging (IWBI 2018)
Elizabeth A. Krupinski, Editor(s)

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