The heterogeneous model developed by Berod et al [Int J Numer Method Biomed Eng 38, 2021] for representing the hemodynamic effects of endovascular prostheses is applied to a series of 10 patient specific cerebral aneurysms, 6 being treated by flow diverters, 4 being equipped with WEBs. Two markers correlated with the medical outcome of the treatment are used to assess the potential of the model, namely the saccular mean velocity and the inflow rate at the neck of the aneurysm. The comparison with the corresponding wire-resolved simulations is very favorable in both cases, and the model-based simulations also retrieve the jetting-type flows generated downstream of the struts. Noteworthy, the very same model was used for representing the flow diverters and the WEBs, showing the versatility and robustness of the heterogeneous modeling of the devices.

中文翻译：

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评估脑动脉瘤血流动力学模拟中考虑血管内装置的异质模型

Berod 等人开发的异质模型 [ Int J Numer Method Biomed Eng 38, 2021] 用于表示血管内假体的血流动力学效应，该模型应用于一系列 10 名患者特定的脑动脉瘤，其中 6 名正在接受分流器治疗，4 名配备了网络。与治疗的医疗结果相关的两个标记用于评估模型的潜力，即囊泡平均速度和动脉瘤颈部的流入速率。在这两种情况下，与相应的线解析模拟的比较都非常有利，并且基于模型的模拟还检索了支柱下游产生的喷射型流动。值得注意的是，使用相同的模型来表示分流器和 WEB，显示了设备异构建模的多功能性和鲁棒性。