Vascular stents are commonly used as a scaffold to hold arteries open after angioplasty. The clinical use of stents has also extended to treatment of cerebral aneurysms and as a graft anchor for endoluminal treatment of abdominal aortic aneurysms. In spite of the clinical success of stents, very little quantitative data exist on how stent structure influences blood flow patterns. Once in place, stents alter the mechanical and geometrical properties of the arterial tree. Such alterations represent an impedance mismatch between stent and unstented vessel. These changes appear to have a profound influence on pressure and flow wave interaction. These alterations may play a role in flow mediated stent failure [1, 2].
Analysis of Fluid-Stent Interaction via Digital Particle Image Velocimetry
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Yazdani, SK, Vlachos, PP, Berry, JL, & Pierrakos, O. "Analysis of Fluid-Stent Interaction via Digital Particle Image Velocimetry." Proceedings of the ASME 2002 International Mechanical Engineering Congress and Exposition. Advances in Bioengineering. New Orleans, Louisiana, USA. November 17–22, 2002. pp. 289-290. ASME. https://doi.org/10.1115/IMECE2002-32585
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