Using COMSOL Multiphysics for Biomechanical Analysis of Stent Technology in Cerebral Aneurysms

Joachim Rasmussen; Jesper Thyregod; Marie Sand Enevoldsen; Kaj-Åge Henneberg

Using COMSOL Multiphysics for Biomechanical Analysis of Stent Technology in Cerebral Aneurysms

Joachim Rasmussen, Jesper Thyregod, Marie Sand Enevoldsen, Kaj-Åge Henneberg

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Abstract

This work presents new fluid-structure interaction (FSI) models in both 2D and 3D of the effect of using vascular stents as treatment of cerebral berry aneurysms. The stent is positioned inside the cerebral artery covering the neck of the aneurysm. The stent is expected to alter the blood flow into the aneurysm such that the blood coagulates due to low blood velocity, and rupture of the aneurysm is prevented. A 3D FSI model consisting of three domains (blood, arterial, and aneurismal) is used to investigate the effect of the aneurysm on blood flow. Aspects of stent design such as pore size and shape and strut size, shape, and position are modeled in 2D and 3D FSI models. The models show that pore size and strut shape both have significant influence on stent efficiency.

Original language	English
Title of host publication	Proceedings of the COMSOL Conference 2009 Milan
Publication date	2009
ISBN (Print)	978-0-9825697-2-6
Publication status	Published - 2009
Event	European Comsol Conference 2009 - Milan, Italy Duration: 14 Oct 2009 → 16 Oct 2009

Conference

Conference	European Comsol Conference 2009
Country/Territory	Italy
City	Milan
Period	14/10/2009 → 16/10/2009

Keywords

Cerebral aneurysms, vascular stent, fluid-structure interactions, strut setup

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@inproceedings{6b577b10503540719cef21001c2d8e4e,

title = "Using COMSOL Multiphysics for Biomechanical Analysis of Stent Technology in Cerebral Aneurysms",

abstract = "This work presents new fluid-structure interaction (FSI) models in both 2D and 3D of the effect of using vascular stents as treatment of cerebral berry aneurysms. The stent is positioned inside the cerebral artery covering the neck of the aneurysm. The stent is expected to alter the blood flow into the aneurysm such that the blood coagulates due to low blood velocity, and rupture of the aneurysm is prevented. A 3D FSI model consisting of three domains (blood, arterial, and aneurismal) is used to investigate the effect of the aneurysm on blood flow. Aspects of stent design such as pore size and shape and strut size, shape, and position are modeled in 2D and 3D FSI models. The models show that pore size and strut shape both have significant influence on stent efficiency.",

keywords = "Cerebral aneurysms, vascular stent, fluid-structure interactions, strut setup",

author = "Joachim Rasmussen and Jesper Thyregod and Enevoldsen, {Marie Sand} and Kaj-{\AA}ge Henneberg",

year = "2009",

language = "English",

isbn = "978-0-9825697-2-6",

booktitle = "Proceedings of the COMSOL Conference 2009 Milan",

note = "European Comsol Conference 2009 ; Conference date: 14-10-2009 Through 16-10-2009",

}

TY - GEN

T1 - Using COMSOL Multiphysics for Biomechanical Analysis of Stent Technology in Cerebral Aneurysms

AU - Rasmussen, Joachim

AU - Thyregod, Jesper

AU - Enevoldsen, Marie Sand

AU - Henneberg, Kaj-Åge

PY - 2009

Y1 - 2009

N2 - This work presents new fluid-structure interaction (FSI) models in both 2D and 3D of the effect of using vascular stents as treatment of cerebral berry aneurysms. The stent is positioned inside the cerebral artery covering the neck of the aneurysm. The stent is expected to alter the blood flow into the aneurysm such that the blood coagulates due to low blood velocity, and rupture of the aneurysm is prevented. A 3D FSI model consisting of three domains (blood, arterial, and aneurismal) is used to investigate the effect of the aneurysm on blood flow. Aspects of stent design such as pore size and shape and strut size, shape, and position are modeled in 2D and 3D FSI models. The models show that pore size and strut shape both have significant influence on stent efficiency.

AB - This work presents new fluid-structure interaction (FSI) models in both 2D and 3D of the effect of using vascular stents as treatment of cerebral berry aneurysms. The stent is positioned inside the cerebral artery covering the neck of the aneurysm. The stent is expected to alter the blood flow into the aneurysm such that the blood coagulates due to low blood velocity, and rupture of the aneurysm is prevented. A 3D FSI model consisting of three domains (blood, arterial, and aneurismal) is used to investigate the effect of the aneurysm on blood flow. Aspects of stent design such as pore size and shape and strut size, shape, and position are modeled in 2D and 3D FSI models. The models show that pore size and strut shape both have significant influence on stent efficiency.

KW - Cerebral aneurysms, vascular stent, fluid-structure interactions, strut setup

M3 - Article in proceedings

SN - 978-0-9825697-2-6

BT - Proceedings of the COMSOL Conference 2009 Milan

T2 - European Comsol Conference 2009

Y2 - 14 October 2009 through 16 October 2009

ER -

Using COMSOL Multiphysics for Biomechanical Analysis of Stent Technology in Cerebral Aneurysms

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