Motion estimation and compensation for coronary artery and myocardium in cardiac CT

Qiulin Tang; James Matthews; Marco Razeto; Jesper James Linde; Satoru Nakanishi

doi:10.1117/12.2081966

18 March 2015 Motion estimation and compensation for coronary artery and myocardium in cardiac CT

Qiulin Tang, James Matthews, Marco Razeto, Jesper James Linde, Satoru Nakanishi

Proceedings Volume 9412, Medical Imaging 2015: Physics of Medical Imaging; 94120Q (2015) https://doi.org/10.1117/12.2081966
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

Motion blurring is still a challenge for cardiac CT imaging. A new motion estimation (ME) and motion compensation method is developed for cardiac CT. The proposed method estimates motion of entire heart, and then applies motion compensation. Therefore, the proposed method reduces motion artifacts not only in coronary artery region as most other methods did, but also reduces motion blurring in myocardium region. In motion compensated reconstruction, we use the Fourier transfer method proposed by Pack et al to obtain a series of partial images, and then warp and sum together to obtain final motion compensated images. The robustness and performance of the proposed method was verified with data from 10 patients and improvements in sharpness of both coronary arteries and myocardium were obtained.

Citation Download Citation

Qiulin Tang, James Matthews, Marco Razeto, Jesper James Linde, and Satoru Nakanishi "Motion estimation and compensation for coronary artery and myocardium in cardiac CT", Proc. SPIE 9412, Medical Imaging 2015: Physics of Medical Imaging, 94120Q (18 March 2015); https://doi.org/10.1117/12.2081966

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