医学
闭塞
动脉瘤
血管内治疗
血管内卷取
血栓形成
计算流体力学
同位
放射科
分流器
外科
内科学
物理
机械
作者
Daniel Mantilla,Alain Berod,Andrés F Ortiz,Daniela D Vera,Franck Nicoud,Vincent Costalat
标识
DOI:10.1177/15910199231152504
摘要
Introduction The Woven EndoBridge device (WEB) is used to treat wide-neck bifurcation aneurysms. These devices are deployed inside the sac. Therefore, the mesh structure provides apposition with the aneurysm wall and induces aneurysmal thrombosis. The objective of our study was to evaluate the anatomic and device-related parameters and indexes with Computational Fluid Dynamics (CFD) of the intracranial aneurysms before and after WEB simulation and find their relationship to complete occlusion. Materials and methods Using the heterogeneous model based on the marching cubes algorithm, we created 3D representations of 27 bifurcated intracranial aneurysms treated with the single-layer WEB device to evaluate anatomic and device-related parameters with CFD. Results In our CFD analysis, we observed higher large volumes (V a ) (0.25 ± 0.18 versus 0.39 ± 0.09, p-value= 0.025) and higher volume to neck surface ratio (R a ) (1.32 ± 0.17 versus 1.54 ± 0.14, p-value= 0.021) in cases with occlusion failure. Conclusions Large aneurysm volumes (V a ) and higher volume to neck surface ratio (R a ) could be associated with occlusion failure in aneurysms treated with the WEB device.
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