Development of the multi-mechanics simulation techniques for the endovascular treatment of cerebral aneurysms with stent grafts

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The influences of the number of strata and the rotation angle in the endovascular treatment with stents on inflow into cerebral aneurysms were examined using computational fluid dynamics approach. Inflow rate into the aneurysm decreased monotonically as the number of strata of the stent increased, while maximum inflow velocity into the aneurysm was fluctuated depending on the strata number. The results also showed that the rotation angle of stent placement in the artery could cause non-negligible effects on the inflow into the aneurysm.