Thoracic aortic dissection is a cardiovascular disease which seriously endangers human health. The main clinical treatment is thoracic endovascular aortic repair (TEAVR). TEVAR with in situ fenestration technique (ISF-TEVAR) can be used to treat complex cases involving the aortic arch and its branches. In this study, aortic geometry model of a patient suffering from aortic dissection treated by ISF-TEVAR was reconstructed, and two-phase blood flow simulation was carried out. The efficacy of ISF-TEVAR was quantitatively explored by assessing the hemodynamics. Meanwhile, the protruding length of the fenestration stent in the aortic arch was shortened by virtual surgery, and the "half protrusion" and "no protrusion" postoperative models were compared to reveal the effect of the protruding length on postoperative blood flow. Results show that appropriately shortening the protrusion length of the stent-graft improves the efficacy of ISF-TEVAR.
QIAO Yonghui
,
LUO Kun
,
FAN Jianren
,
MAO Le
,
ZHU Ting
. Numerical simulation of two-phase blood flow after thoracic endovascular aortic repair with in situ fenestration[J]. Journal of University of Chinese Academy of Sciences, 2020
, 37(2)
: 192
-197
.
DOI: 10.7523/j.issn.2095-6134.2020.02.007
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