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Proceedings Paper

Contributions to ideal observer SNRs in propagation-based x-ray phase-contrast imaging
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Paper Abstract

Propagation-based X-ray phase-contrast imaging permits the visualization of tissues that have very similar X-ray absorption properties and may benefit a variety of biomedical imaging applications. Unlike conventional radiographic contrast that is related to the projected absorption properties of tissue, image contrast in phasecontrast radiographs contains contributions from absorption-contrast and phase-contrast. In this work, we develop a general theoretical framework for assessing the contributions of these contrast mechanisms to signal detectability measures in propagation-based X-ray phase-contrast imaging. Specifically, concepts from signal detection theory are utilized to analyze the contributions of phase- and absorption-contrast to an ideal observer figure of merit for a signal-known-exactly/background-known exactly detection task.

Paper Details

Date Published: 19 March 2010
PDF: 6 pages
Proc. SPIE 7622, Medical Imaging 2010: Physics of Medical Imaging, 76220S (19 March 2010); doi: 10.1117/12.844489
Show Author Affiliations
Mark A. Anastasio, Illinois Institute of Technology (United States)
Medical Imaging Research Ctr., Illinois Institute of Technology (United States)
Cheng-Ying Chou, National Taiwan Univ. (Taiwan)
Adam M. Zysk, Medical Imaging Research Ctr., Illinois Institute of Technology (United States)
Jovan G. Brankov, Medical Imaging Research Ctr., Illinois Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7622:
Medical Imaging 2010: Physics of Medical Imaging
Ehsan Samei; Norbert J. Pelc, Editor(s)

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