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Dynamic Remeshing for Fluid Structure Interaction: Application to Modelling Aortic Dissection

[+] Author Affiliations
Keri R. Moyle, Yiannis Ventikos

University of Oxford, Oxford, UK

Paper No. SBC2007-175989, pp. 461-462; 2 pages
doi:10.1115/SBC2007-175989
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

Aortic dissection is an acute condition occurring more frequently than ruptured abdominal aortic aneurysms, with a mortality rate increase of 1% per hour if left untreated [1]. Dissection occurs following creation of an entrance tear, through which blood can force its way into the wall, forming a pocket that propagates longitudinally. The membrane of the dissection flap separates the true lumen (through which the organs are supplied with blood), from a false lumen (the pocket created by the dissection). The total obstruction of the true lumen by the motion of the vessel flap, or organ starvation due to branch vessel compression by the false lumen, can be fatal. Figure 1 shows an idealised representation of an aortic dissection model.

Copyright © 2007 by ASME

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