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Abstract #2163

Evaluation of Myocardial Motion in Patients with Fontan Circulation by Using Tissue Phase Mapping Cardiac Magnetic Resonance

Xue-Jhe Lu1, Meng-Chu Chang1, Ming-Ting Wu2,3, Ken-Pen Weng4,5, and Hsu-Hsia Peng1

1Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan, 2Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, 3Faculty of Medicine & Institute of Clinical Medicine, National Yang Ming University, Taipei, Taiwan, 4Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, 5Department of Pediatrics, National Yang-Ming University, Taipei, Taiwan

Patients with Fontan circulation nowadays have a well long-term survival with the improvement of post-surgery care and follow-up examination techniques. However, ventricular dysfunction and heart failure may occur in a couple years after surgery. To evaluate the risk of cardiac events in an early disease stage is important for patient managements. In this study, we measured myocardial motion velocity by tissue phase mapping. Fontan patients presented significantly decreased systolic and diastolic longitudinal velocity. In conclusion, evaluation of myocardial motion velocity could provide helpful information in detecting myocardial remodeling of functional ventricle in Fontan patients.

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