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Analysis of Fluid-Stent Interaction via Digital Particle Image Velocimetry

[+] Author Affiliations
Saami K. Yazdani, Pavlos P. Vlachos, Olga Pierrakos

Virginia Polytechnic Institute and State University, Blacksburg, VA

Joel L. Berry

Wake Forest University, Winston-Salem, NC

Paper No. IMECE2002-32585, pp. 289-290; 2 pages
doi:10.1115/IMECE2002-32585
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

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].

Copyright © 2002 by ASME

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