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MRI Evaluation of a Stented Abdominal Aorta of a Rabbit

[+] Author Affiliations
Minchul Shin, Brigitta C. Brott, Steven G. Lloyd, William T. Evanochko, Pál Kiss, Robert A. Baker, Andreas S. Anayiotos

University of Alabama at Birmingham, Birmingham, AL

Paper No. SBC2007-176395, pp. 727-728; 2 pages
doi:10.1115/SBC2007-176395
From:
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5
  • Copyright © 2007 by ASME

abstract

MRI is an attractive non-invasive angiographic modality not requiring nephrotoxic contrast agents and damaging exposure to radiation such as traditional angiography and multislice CT. It has previously been shown to provide consistently accurate non-invasive information from the stented regions of peripheral vessels even under stenotic conditions [1–3]. The aim of this study is to show that phase contrast magnetic resonance (PC-MR) can be used to provide accurate quantitative information of blood flow in smaller stented vessels such as the coronaries, using an in-vitro model and a rabbit aorta model. The ultimate goal of the project is to evaluate in-stent restenosis in stented coronary vessels, ultimately describing the degree of stenosis based on blood velocity indices such as translesional pressure gradient and peak systolic velocity ratio (PSVR).

Copyright © 2007 by ASME

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