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Abstract #3149

Does Right Ventricular Myocardial Kinetic Energy Correlate With Pressure Overload in Repaired Tetralogy of Fallot Patients?

Meng-Chu Chang1, Ming-Ting Wu2, Ken-Pen Weng3, Mao-Yuan Su4, Marius Menza5, Hung-Chieh Huang2, 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, 3Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, 4Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan, 5Medical Physics, Department of Radiology, University Hospital Freiburg, Freiburg, Germany

The association of right ventricular (RV) myocardium adapted to pressure overload of repaired tetralogy of Fallot (rTOF) patient is still unclear. We evaluated three-directional myocardial kinetic energy (KE) and correlated it with RV-related pressure. The recruited rTOF patients presented decreased peak KERV both in systole and diastole. However, patient group exhibited increased percentage of radial KERV, accompanying with highly positive correlation with RV systolic pressure. In conclusion, the investigation of the correlation between myocardial kinetic energy and RV pressure overload may helpful to comprehend compensatory mechanism and myocardial remodeling in patients with rTOF.

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