Virtual evaluation of stent graft deployment: A validated modeling and simulation study

被引：68
作者：
De Bock, S. [1 ]
Iannaccone, F. [1 ]
De Santis, G. [1 ]
De Beule, M. [1 ]
Van Loo, D. [2 ]
Devos, D.
Vermassen, F. [3 ]
Segers, P. [1 ]
Verhegghe, B. [1 ]
机构：
[1] Univ Ghent, bioMMeda, IBiTech, B-9000 Ghent, Belgium
[2] Univ Ghent, Ctr Xray Tomog UGCT, B-9000 Ghent, Belgium
[3] Ghent Univ Hosp, Dept Thorac & Vasc Surg, Ghent, Belgium
来源：
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2012年 / 13卷
关键词：
Abdominal aortic aneurysm; Stent graft; Finite element; Deployment; Silicone validation; ABDOMINAL AORTIC-ANEURYSMS; OPEN REPAIR; COMPUTATIONAL ANALYSIS; ENDOVASCULAR REPAIR; BEHAVIOR; RUPTURE; NECK; MECHANICS; GEOMETRY; FAILURE;
D O I：
10.1016/j.jmbbm.2012.04.021
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The presented study details the virtual deployment of a bifurcated stent graft (Medtronic Talent) in an Abdominal Aortic Aneurysm model, using the finite element method. The entire deployment procedure is modeled, with the stent graft being crimped and bent according to the vessel geometry, and subsequently released. The finite element results are validated in vitro with placement of the device in a silicone mock aneurysm, using high resolution CT scans to evaluate the result. The presented work confirms the capability of finite element computer simulations to predict the deformed configuration after endovascular aneurysm repair (EVAR). These simulations can be used to quantify mechanical parameters, such as neck dilations, radial forces and stresses in the device, that are difficult or impossible to obtain from medical imaging. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：129 / 139
页数：11
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