Finite element analysis of thoracic aortic aneurysm and prediction of rupture: Application after TEVAR

为了预测胸主动脉瘤患者破裂的潜在风险，我们计算了有限元模型的最大von Mise应力(Max VMS)。两组间最大von Mise应力差异有统计学意义(A组：即将破裂，B组：择期修补术)。隐匿性破裂组VMS值多数大于0.5 Mpa。有可能估计导致主动脉破裂的最大von Mise应力的某个阈值。该技术将应用于主动脉夹层模型和后TEVAR模型。

To predict rupture potential risk for patients with thoracic aortic aneurysm, we calculated the maximal von Mises stress (Max VMS) of finite element models. Maximal von Mises stress were significantly different between two groups (groupA: impending rupture, groupB: elective repair). VMS values of most cases in impending ruptured group were larger than 0.5MPa. It may be possible to estimate a certain threshold of maximal von Mises stress which induces aortic rupture. This technique will be applied to aortic dissection model and post TEVAR model.