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 Weng^3,4, 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 (KE_myo) and intraventricular KE (KE_ven) in left- and right-ventricle (LV, RV) for repaired tetralogy of Fallot (rTOF) patients. The rTOF group displayed higher systolic RV KE_ven, earlier LV myocardial diastolic time-to-peak (TTP_myo), earlier RV TTP_myo in both systole and diastole, earlier LV TTP_ven in both systole and diastole, and earlier RV TTP_ven in systole. In conclusion, from an insight of energy conversion, rTOF patients demonstrated undermined interaction between LV KE_myo and KE_ven in an early stage. The dilated RV potentially have impacts on the RV KE_ven in rTOF patients.

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