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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。
Objective To establish a finite element model of three-dimensional reconstruction of cerebral aneurysms and provide the basis for the analysis of mechanical mechanism of cerebral aneurysms rupture. Methods According to the CT data of patients with clinical cerebral aneurysm combined with MIMICS 8.1 digital medical image processing software, the physical structure of cerebral aneurysm was constructed by three-dimensional reconstruction technique. Finally, ANSYS finite element general software was used to complete the finite element modeling and mechanical analysis of cerebral aneurysms . Results The finite element model of hemodynamics in patients with cerebral aneurysm was established. Conclusion The model has the characteristics of digitization and individuation, which can be used to calculate the hemodynamic performance of cerebral aneurysm and analyze the rupture mechanism of aneurysm in patients with clinical cerebral aneurysm.