한국전산유체공학회:학술대회논문집

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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Intra-luminal Thrombus Reduces Stress in the Aneurysm Wall: Fluid-Structure Interaction in Pulsatile Flow

  • Kim S. Y. (Dept. of Biomedical Engineering, Yonsei University, Institute of Medical Engineering Research Institute for Medical Instrumentation and Rehabilitation Engineering Technology Innovation Center for Medical Instruments) ;
  • Kim Y. H. (Dept. of Biomedical Engineering, Yonsei University, Institute of Medical Engineering Research Institute for Medical Instrumentation and Rehabilitation Engineering Technology Innovation Center for Medical Instruments)
  • Published : 2003.10.01
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Abstract

Using computational fluid dynamics with the fluid-structure interaction, structural effects of intra-luminal thrombus were determined in thrombosed axisymmetric abdominal aorta aneurysm (AAA) models under pulsatile flow. Four different models, varying dilatations of the aneurysm and Young's moduli of intra-luminal thrombus, were defmed. Compared with unthrombosed AAA models, both von Mises stress and radial displacements in the aneurysm wall significantly decreased. Stiffer intra-luminal thrombus reduced von Mises stress in the aneUtysm wall. The present study supported that intra-luminal thrombus might reduce wall stress in the aneurysm.

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