Stationary chest tomosynthesis using a CNT x-ray source array

Jing Shan; Pavel Chtcheprov; Andrew W. Tucker; Yueh Z. Lee; Xiaohui Wang; David Foos; Michael D. Heath; Jianping Lu; Otto Zhou

doi:10.1117/12.2007993

6 March 2013 Stationary chest tomosynthesis using a CNT x-ray source array

Jing Shan, Pavel Chtcheprov, Andrew W. Tucker, Yueh Z. Lee, Xiaohui Wang, David Foos, Michael D. Heath, Jianping Lu, Otto Zhou

Author Affiliations +

Proceedings Volume 8668, Medical Imaging 2013: Physics of Medical Imaging; 86680E (2013) https://doi.org/10.1117/12.2007993
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

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.

Citation Download Citation

Jing Shan, Pavel Chtcheprov, Andrew W. Tucker, Yueh Z. Lee, Xiaohui Wang, David Foos, Michael D. Heath, Jianping Lu, and Otto Zhou "Stationary chest tomosynthesis using a CNT x-ray source array", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 86680E (6 March 2013); https://doi.org/10.1117/12.2007993

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