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Abstract #1337

Myocardial and Intraventricular Kinetic Energy in Patients with Repaired Tetralogy of Fallot

Shi-Ying Ke1, Meng-Chu Chang1, Ming-Ting Wu2, Ken-Pen Weng3,4, and Hsu-Hsia Peng1
1Department of Biomedical Engineering and Environmental Sciences, National TsingHua University, Hsinchu, Taiwan, 2Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, 3Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, 4Department of Pediatrics, National Yang-Ming University, Taipei, Taiwan

We aimed to investigate the interaction between myocardial kinetic energy (KEmyo) and intraventricular KE (KEven) in left- and right-ventricle (LV, RV) for repaired tetralogy of Fallot (rTOF) patients. The rTOF group displayed higher systolic RV KEven, earlier LV myocardial diastolic time-to-peak (TTPmyo), earlier RV TTPmyo in both systole and diastole, earlier LV TTPven in both systole and diastole, and earlier RV TTPven in systole. In conclusion, from an insight of energy conversion, rTOF patients demonstrated undermined interaction between LV KEmyo and KEven in an early stage. The dilated RV potentially have impacts on the RV KEven in rTOF patients.

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