Patient-specific arterial fluid-structure interaction modeling of cerebral aneurysms

Kenji Takizawa, Creighton Moorman, Samuel Wright, John Purdue, Travis McPhail, Peng R. Chen, Joe Warren, Tayfun E. Tezduyar*

*この研究の対応する著者

研究成果: Article査読

74 被引用数 (Scopus)

抄録

We address the computational challenges related to the extraction of the arterial-lumen geometry, mesh generation and starting-point determination in the computation of arterial fluid-structure interactions (FSI) with patient-specific data. The methods we propose here to address those challenges include techniques for constructing suitable cutting planes at the artery inlets and outlets and specifying on those planes proper boundary conditions for the fluid mechanics, structural mechanics and fluid mesh motion and a technique for the improved calculation of an estimated zero-pressure arterial geometry. We use the stabilized space-time FSI technique, together with a number of special techniques recently developed for arterial FSI. We focus on three patient-specific cerebral artery segments with aneurysm, where the lumen geometries are extracted from 3D rotational angiography.

本文言語English
ページ(範囲)308-323
ページ数16
ジャーナルInternational Journal for Numerical Methods in Fluids
65
1-3
DOI
出版ステータスPublished - 2011 1
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • 材料力学
  • 機械工学
  • コンピュータ サイエンスの応用
  • 応用数学

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