The purpose of this study was to evaluate turbulent kinetic energy (TKE) after aorta replacement (AoR) using 4D Fow MRI. We recruited 13 patients undergoing AoR for the aortic dissection and 9 normal volunteers. The TKEpeak of AoR group was significantly higher than those of volunteers (16.09 ± 7.75 [3.51–31.83] mJ vs. 4.50 ± 1.64 [2.57–8.13] mJ, p < 0.001). The TKE elevation was mainly derived from the distal part of ReAo (p=0.001).
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