Numerical analysis of the flow pattern in stented aneurysms and its relation to velocity reduction and stent efficiency

Miki Hirabayashi, Makoto Ohta, Krisztina Baráth, Daniel A. Rüfenacht, Bastien Chopard

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We present a qualitative analysis of the flow pattern in cerebral aneurysms and the effect on the velocity reduction of stent implantation. We use the Lattice Boltzmann (LB) method, which implements a mesoscopic dynamics of the interactions between fictitious particles. LB provides an efficient numerical solver for complex boundary problems such as the flow in cerebral aneurysms. Several numerical and empirical studies show that the flow reduction mechanism of the stent in the saccular aneurysm is not simple to understand in detail. We have focused on the flow pattern in the aneurysm dome and shown that several characteristic properties allow to predict the effect of a treatment by a stent.

Original languageEnglish
Pages (from-to)128-133
Number of pages6
JournalMathematics and Computers in Simulation
Volume72
Issue number2-6
DOIs
Publication statusPublished - 2006 Sep 9
Externally publishedYes

Keywords

  • Aneurysms
  • Blood flow
  • Computational fluid dynamics
  • Lattice Boltzmann method
  • Stents

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)
  • Numerical Analysis
  • Modelling and Simulation
  • Applied Mathematics

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