Photon counting CT in a C-arm interventional system: hardware development and artifact corrections

Xu Ji; Mang Feng; Ran Zhang; Guang-Hong Chen; Ke Li

doi:10.1117/12.2581087

15 February 2021 Photon counting CT in a C-arm interventional system: hardware development and artifact corrections

Xu Ji, Mang Feng, Ran Zhang, Guang-Hong Chen, Ke Li

Author Affiliations +

Proceedings Volume 11595, Medical Imaging 2021: Physics of Medical Imaging; 115950A (2021) https://doi.org/10.1117/12.2581087
Event: SPIE Medical Imaging, 2021, Online Only

Abstract

This work reports the development of a C-arm photon counting detectors (PCD)-CT system for evaluating the potential clinical utility of PCD-CT for intraoperative imaging. A dual-threshold CdTe-based strip PCD was mounted on a Siemens Artis Zee C-arm interventional system. A new geometric calibration method was developed to correct for the geometric distortion of the C-arm system during rotation. Experimental results show that, under clinically relevant conditions, the C-arm PCD-CT system can reliably and reproducibly generate high quality MDCT-like images without any noticeable geometric distortion or banding artifact.

Conference Presentation

Citation Download Citation

Xu Ji, Mang Feng, Ran Zhang, Guang-Hong Chen, and Ke Li "Photon counting CT in a C-arm interventional system: hardware development and artifact corrections", Proc. SPIE 11595, Medical Imaging 2021: Physics of Medical Imaging, 115950A (15 February 2021); https://doi.org/10.1117/12.2581087

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