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首页> 外文期刊>Engineering Applications of Computational Fluid Mechanics >Numerical Investigation of Hemodynamics of Lateral Cerebral Aneurysm Following Coil Embolization
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Numerical Investigation of Hemodynamics of Lateral Cerebral Aneurysm Following Coil Embolization

机译：线圈栓塞后侧脑动脉血流动力学的数值研究

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AbstractCerebral aneurysms can be treated by coil embolization within the aneurysm sac to alter the local hemodynamics and lower the wall shear stress (WSS) by making the aneurysmal flow inactive. This study investigates the hemodynamics of a lateral wall cerebral aneurysm with coils incorporating fluid-structure interaction (FSI) where the effect of apparent viscosity on thrombus formation is analysed considering the non-Newtonian behaviour of the blood. Three-dimensional transient incompressible laminar flow fields were predicted inside the aneurysm with coils at the proximal and distal neck ends with straight and curved parent vessels. The predictions showed the WSS and the effective stress were highest at the neck region, but the maximum wall displacement occurred at the dome. The coils at the distal neck performed better compared to the coils at the proximal neck in terms of reduced flow rate and higher apparent viscosity. The cerebral aneurysm with coils and curved parent vessel was subjected to hig...
机译：摘要可以通过在动脉瘤囊内进行线圈栓塞术来治疗脑动脉瘤，以通过使动脉瘤血流不活动来改变局部血流动力学并降低壁切应力（WSS）。这项研究调查了带有流体-结构相互作用（FSI）的线圈对侧壁脑动脉瘤的血流动力学，其中考虑了血液的非牛顿行为，分析了表观粘度对血栓形成的影响。预测在动脉瘤内部的三维瞬态不可压缩层流流场，在近端和远端颈上带有线圈，其弯曲和弯曲的亲代血管。预测表明，WSS和有效应力在颈部区域最高，但最大壁位移发生在穹顶处。就减少的流速和较高的表观粘度而言，远侧颈部的线圈比近侧颈部的线圈性能更好。带有线圈和弯曲的父血管的脑动脉瘤进行了高位...

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