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Proceedings Paper

Stationary chest tomosynthesis using a CNT x-ray source array
Author(s): Jing Shan; Pavel Chtcheprov; Andrew W. Tucker; Yueh Z. Lee; Xiaohui Wang; David Foos; Michael D. Heath; Jianping Lu; Otto Zhou
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Paper Abstract

Chest tomosynthesis is an imaging modality that provides 3D sectional information of a patients thoracic cavity using limited angle x-ray projections. Studies show that tomosynthesis can improve the detection of subtle lung nodules comparing to conventional radiography at a lower radiation dose than CT. In the conventional design, the projection images are collected by mechanically moving a single x-ray source to different viewing angles. We investigated the feasibility of stationary chest tomosynthesis using the distributed CNT x-ray source array technology, which can generate a scanning x-ray beam without any mechanical motion. A proof-of-concept system was constructed using a short linear source array and a at panel detector. The performance of the source including the flux was evaluated in the context of chest imaging. The bench-top system was characterized and images of a chest phantom were acquired and reconstructed. The preliminary results demonstrate the feasibility of stationary chest tomosynthesis using the CNT x-ray source array technology.

Paper Details

Date Published: 6 March 2013
PDF: 12 pages
Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 86680E (6 March 2013); doi: 10.1117/12.2007993
Show Author Affiliations
Jing Shan, Univ. of North Carolina at Chapel Hill (United States)
Pavel Chtcheprov, Univ. of North Carolina at Chapel Hill (United States)
Andrew W. Tucker, Univ. of North Carolina at Chapel Hill (United States)
Yueh Z. Lee, Univ. of North Carolina at Chapel Hill (United States)
Xiaohui Wang, Carestream Health, Inc. (United States)
David Foos, Carestream Health, Inc. (United States)
Michael D. Heath, Carestream Health, Inc. (United States)
Jianping Lu, Univ. of North Carolina at Chapel Hill (United States)
Otto Zhou, Univ. of North Carolina at Chapel Hill (United States)
Lineberger Comprehensive Cancer Ctr. (United States)


Published in SPIE Proceedings Vol. 8668:
Medical Imaging 2013: Physics of Medical Imaging
Robert M. Nishikawa; Bruce R. Whiting; Christoph Hoeschen, Editor(s)

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