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Patient Specific Stent Malapposition in Challenging Anatomy: An FEA Methodology to Understand Numerically the Extent of Malapposition of Latest Generation Stents

[+] Author Affiliations
Georgios E. Ragkousis, Neil W. Bressloff

University of Southampton, Southampton, UK

Nick Curzen

Southampton University Hospitals NHS Trust, Southampton, UK

Paper No. SBC2013-14582, pp. V01AT12A004; 2 pages
doi:10.1115/SBC2013-14582
From:
  • ASME 2013 Summer Bioengineering Conference
  • Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments
  • Sunriver, Oregon, USA, June 26–29, 2013
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-5560-7
  • Copyright © 2013 by ASME

abstract

Stent malapposition is a common feature of percutaneous coronary intervention (PCI) particularly in challenging anatomy, and is associated with complications such as stent thrombosis and restenosis. Such lesions can be characterized by long, eccentric, calcified and tortuous geometry. For the purpose of this work, a patient specific right coronary artery stenosis was reconstructed pre-PCI so that virtual FEA simulations of current generation stent could be conducted to model realistic “stenting” conditions. The results show that from the proposed simulation methodology, quantitative and qualitative outcomes can be provided with insight into the development of stent malapposition.

Copyright © 2013 by ASME

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