颅内动脉瘤血流动力学的计算流体动力学数值模拟研究

摘要

目的 模拟颅内动脉瘤内的血液流动,进而获得血流动力学的各种参数.方法 利用颅内动脉瘤二维数字减影血管造影容积成像数据,建立颅内动脉瘤三维有限元模型,应用计算流体动力学方法计算颅内动脉瘤血流动力学的各种参数.结果 实验获得了颅内动脉瘤血流动力学相关参数包括血流速度、剪切力、压力等,与数字减影血管造影对比可靠.结论 计算流体动力学数值模拟是研究颅内动脉瘤血流动力学的可靠方法.%Objective To simulate hemodynamic status of intracranial aneurysm and obtain parameters of hemodynamics. Method With three-dimensional ( 3-D ) digital subtraction angiography volume imaging data, 3-D modeling of intracranial aneurysm were setted up and parameters of hemodynamics of intracranial aneurysm were calculated by computeational fluid dynamics( CFD) . Result The experiment obtains parameters of hemocdynamics such as velocity ,pressure and wall shear stress, etc. Conclusion The numeral simulation of CFD is a reliable method to research on hemodynamics of intracranial aneurysm.