Abstract #3342

Impact of cardiac function on objective evaluation of motion correction on cardiovascular magnetic resonance T1 mapping

Sixian Hu¹, Wanlin Peng¹, Huayan Xu², Xiaoyue Zhou³, Chunchao Xia¹, and Zhenlin Li¹

¹Department of Radiology, West China Hospital of Sichuan University, Chengdu 610041, China, Chengdu, China, ²Department of Radiology, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, China, Chengdu, China, ³MR Collaboration, Siemens Healthineers Ltd., Shanghai, China, Shanghai, China

Quantitative evaluation of whether cardiac function affects the motion correction effect on cardiovascular magnetic resonance T1 mapping was conducted. Pre- and post-contrast T1 values, ECV values, SNR, and CNR were measured and compared between MOCO and non-MOCO images in groups with either preserved left ventricular function or impaired left ventricular function. Motion-corrected images showed good T1 and ECV value agreement compared to images without correction. The group with preserved left ventricular function showed greater improvement after motion correction than the impaired left ventricular function group.

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