Abstract #2105

Impact of Intraventricular Vortex on Kinetic Energy in Patients with Fontan Circulation

Xue-Zhe Lu¹, Ming-Ting Wu², Ken-Pen Weng^3,4, 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 Pediatrics, National Yang-Ming University, Taipei, Taiwan

For patients with Fontan circulation, the intraventricular hemodynamics such as kinetic energy and vorticity might could be helpful with evaluating the cardiac function and the risks of negative long-term outcome. To investigate the impact of intraventricular vortex on kinetic energy in the of Fontan patients, we employed 4D flow magnetic resonance and evaluate intraventricular kinetic energy and vorticity in Fontan patients and found prolonged peaks in systolic kinetic energy and increased mean systolic vorticity. The strong correlation between kinetic energy and vorticity in systole showed a potential impact of vortex on kinetic energy during systole.

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