Image quality improvement in MDCT cardiac imaging via SMART-RECON method

Yinsheng Li; Ximiao Cao; Zhanfeng Xing; Xuguang Sun; Jiang Hsieh; Guang-Hong Chen

doi:10.1117/12.2254644

9 March 2017 Image quality improvement in MDCT cardiac imaging via SMART-RECON method

Yinsheng Li, Ximiao Cao, Zhanfeng Xing, Xuguang Sun, Jiang Hsieh, Guang-Hong Chen

Proceedings Volume 10132, Medical Imaging 2017: Physics of Medical Imaging; 101322Z (2017) https://doi.org/10.1117/12.2254644
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

Coronary CT angiography (CCTA) is a challenging imaging task currently limited by the achievable temporal resolution of modern Multi-Detector CT (MDCT) scanners. In this paper, the recently proposed SMARTRECON method has been applied in MDCT-based CCTA imaging to improve the image quality without any prior knowledge of cardiac motion. After the prospective ECG-gated data acquisition from a short-scan angular span, the acquired data were sorted into several sub-sectors of view angles; each corresponds to a 1/4th of the short-scan angular range. Information of the cardiac motion was thus encoded into the data in each view angle sub-sector. The SMART-RECON algorithm was then applied to jointly reconstruct several image volumes, each of which is temporally consistent with the data acquired in the corresponding view angle sub-sector. Extensive numerical simulations were performed to validate the proposed technique and investigate the performance dependence.

Citation Download Citation

Yinsheng Li, Ximiao Cao, Zhanfeng Xing, Xuguang Sun, Jiang Hsieh, and Guang-Hong Chen "Image quality improvement in MDCT cardiac imaging via SMART-RECON method", Proc. SPIE 10132, Medical Imaging 2017: Physics of Medical Imaging, 101322Z (9 March 2017); https://doi.org/10.1117/12.2254644

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