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 KE_RV both in systole and diastole. However, patient group exhibited increased percentage of radial KE_RV, 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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