[Finite element method and computational fluid dynamics used in the analysis of a stent].
Stent implantation can cause thrombus, vessel injury and blood flow disturbance which are considered as the main causes of instent restenosis. In order to investigate the influence of stent implantation on vessel wall and blood flow, we used finite element method (FEM) and computational fluid dynamics (CFD) in this work. The results showed that the implantation of the stent could cause vessel injury and flow stagnation. The instant recoil of the implanted stent is much more than that of the stent itself (12.3% versus 3.1%). In conclusion, FEM and CFD can help illustrate and quantify some biomechanical characteristics for the optimization of stent design.
Liang
Dongke
D
School of Material Engineering, Dalian University of Technology, Dalian 116023, China. Dongkeliang@163.com
Yang
Dazhi
D
Qi
Min
M
D001783:Blood Flow Velocity / Q000502:physiology; D003198:Computer Simulation; D020342:Finite Element Analysis; D006801:Humans; D008955:Models, Cardiovascular; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000379:methods; D015607:Stents / Q000009:adverse effects*