基于CT的脑动脉瘤三维重建的有限元模型

目的建立脑动脉瘤三维重建的有限元模型,为临床脑动脉瘤破裂力学机制分析提供基础。方法依据临床脑动脉瘤患者CT数据,结合MIMICS 8.1数字化医学影像处理软件,运用三维重建技术构造脑动脉瘤的实体结构,最后导入ANSYS有限元通用软件完成脑动脉瘤的有限元建模与力学分析。结果建立临床上适用于脑动脉瘤患者血流动力学分析的有限元模型。结论模型具有数字化、个性化特征,可用于脑动脉瘤血流动力学性能计算,分析临床脑动脉瘤患者动脉瘤的破裂机制。

3D reconstruction finite element model of cerebral aneurysm based on CT data

Objective To establish the finite element model of 3D reconstruction for cerebral aneurysm to provide the basic analysis with hemodynamic mechanism in rupture of cerebral aneurysm.M ethod According to clinical CT scanning data, 3D cerebral aneurysm is reconstructed with integrating MIMICS 8.1 digital medical image management software and the result document was transferred to ANSYS software to computerize the hemodynamic parameter.s Results Finite element model of cerebral aneurysm, which can be applied to simulate hemodynamics in cerebral aneurysm, is presented. Conclusions This model has not only digital but also individual properties, and can be used to calculate the hemodynamic property in cerebral aneurysm and help to analyze its rupture mechanism.