Solid and Fluid Simulations of Vertebral Artery Stenosis Treated with Stents with Different Shapes of Link

Abstract:

To investigate the effect of endovascular stents with different links on treating stenotic vertebral artery. Three kinds of stent with different links (L-stent, V-stent and S-stent respectively) and idealized stenotic vertebral artery were established. The deployment procedure of stent in the stenotic artery and hemodynamics based on the deformed models were simulated. S-stent comparatively features better flexibility the smallest foreshortening, inducing smaller stress in the stent strut, as well as smaller stress generated in the arterial wall; L-stent comparatively causes smaller area of low wall shear stress, less blood stagnation area and better blood flow close to the artery wall. From the view point of combination of solid mechanics and hemodynamics, S-stent has better therapeutic effect because of its lower potential possibility of inducing ISR, and better prospects in clinical application than L-stent and V-stent.

• Periodical: Applied Mechanics and Materials (Volume 553)
• Pages: 338-343
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.553.338
• Online since: May 2014
• Authors: Ai Ke Qiao, Zhan Zhu Zhang
• Keywords: Endovascular Stent, Hemodynamics, In-Stent Restenosis, Numerical Simulation, Stent Intervention

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