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Abstract #2064

Attenuation of left ventricular blood flow kinetic energy and direct flow in repaired Fontan patients: a 4D flow MRI study

Liwei Hu1, Xiaodan Zhao2, Rongzhen Ouyang1, Shuang Leng2, Yong Zhang3, Liang Zhong2,4, and Yumin Zhong1
1Shanghai Children's Medical Center, Shanghai, China, 2National Heart Centre Singapore, Singapore, Singapore, 3GE Healthcare, Shanghai, China, 4Duke-NUS Medical School, National University of Singapore, singapore, Singapore

Four-dimensional flow (4D flow) magnetic resonance imaging (MRI) enables the quantification of blood flow such as kinetic energy (KE) and flow components within the ventricular. Both KE and flow components is associated with ventricular diastolic and systolic function. This study aimed to quantify left ventricular (LV) KE and flow components in repaired Fontan patients in comparison to normal volunteers. The data showed that LV diastolic and systolic KE and direct flow were significant reduced, and residual flow increased in repaired Fontan patients.

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