A lattice Boltzmann study of blood flow in stented aneurism

Miki Hirabayashi; Makoto Ohta; Daniel A. Rufenacht; Bastien Chopard

doi:10.1016/j.future.2003.12.004

A lattice Boltzmann study of blood flow in stented aneurism

Miki Hirabayashi, Makoto Ohta, Daniel A. Rufenacht, Bastien Chopard

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

The treatment of cerebral aneurisms with a porous stent has recently been proposed as a minimally invasive way to prevent rupture and favor coagulation mechanism inside the aneurism. The efficiency of a stent is related to several parameters which are not yet fully understood. The goal of this paper is to identify, through numerical simulations, how the stent structure and its positioning affect the hemodynamics properties of the flow inside the aneurism. We use the concept of flow reduction to characterize the stent efficiency. Our simulations are based on a lattice Boltzmann modeling of blood flow. Our results, which agree well with in vitro experiments, show how the various parameters play a role and help us to understand the phenomena.

Original language	English
Pages (from-to)	925-934
Number of pages	10
Journal	Future Generation Computer Systems
Volume	20
Issue number	6 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.future.2003.12.004
Publication status	Published - 2004 Aug
Externally published	Yes

Keywords

Aneurism
Blood flow
Hemodynamics
Lattice Boltzmann
Stents

ASJC Scopus subject areas

Software
Hardware and Architecture
Computer Networks and Communications

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AU - Hirabayashi, Miki

AU - Ohta, Makoto

AU - Rufenacht, Daniel A.

AU - Chopard, Bastien

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AB - The treatment of cerebral aneurisms with a porous stent has recently been proposed as a minimally invasive way to prevent rupture and favor coagulation mechanism inside the aneurism. The efficiency of a stent is related to several parameters which are not yet fully understood. The goal of this paper is to identify, through numerical simulations, how the stent structure and its positioning affect the hemodynamics properties of the flow inside the aneurism. We use the concept of flow reduction to characterize the stent efficiency. Our simulations are based on a lattice Boltzmann modeling of blood flow. Our results, which agree well with in vitro experiments, show how the various parameters play a role and help us to understand the phenomena.

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KW - Stents

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