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J Neurol Surg A Cent Eur Neurosurg 2017; 78(06): 610-616
DOI: 10.1055/s-0037-1604286
Case Report
Georg Thieme Verlag KG Stuttgart · New York

Computational Fluid Dynamics of a Fatal Ruptured Anterior Communicating Artery Aneurysm

Aleš Hejčl
1   Department of Neurosurgery of the J.E. Purkyně University, Masaryk Hospital, Ústí nad Labem, Czech Republic
2   International Clinical Research Center, Fakultni Nemocnice Brno, Brno, Czech Republic
,
Helena Švihlová
2   International Clinical Research Center, Fakultni Nemocnice Brno, Brno, Czech Republic
3   Charles University, Faculty of Mathematics and Physics, Mathematical Institute, Prague, Czech Republic
,
Alena Sejkorová
1   Department of Neurosurgery of the J.E. Purkyně University, Masaryk Hospital, Ústí nad Labem, Czech Republic
,
Tomáš Radovnický
1   Department of Neurosurgery of the J.E. Purkyně University, Masaryk Hospital, Ústí nad Labem, Czech Republic
,
Daniel Adámek
4   Department of Radiology, Masaryk Hospital, Usti nad Labem, Czech Republic
,
Jaroslav Hron
3   Charles University, Faculty of Mathematics and Physics, Mathematical Institute, Prague, Czech Republic
,
Dan Dragomir-Daescu
5   Department of Physiology and Biomedical Engineering, Associate Professor of Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota
,
Josef Málek
3   Charles University, Faculty of Mathematics and Physics, Mathematical Institute, Prague, Czech Republic
,
Martin Sameš
1   Department of Neurosurgery of the J.E. Purkyně University, Masaryk Hospital, Ústí nad Labem, Czech Republic
› Author Affiliations
Further Information

Publication History

30 November 2016

15 April 2017

Publication Date:
11 August 2017 (online)

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Abstract

Computational fluid dynamics (CFD) has been studied as a tool for the stratification of aneurysm rupture risk. We performed CFD analysis in a patient operated on for a ruptured anterior communicating artery aneurysm. The point of rupture was identified during surgery. The aneurysm and blood vessels were segmented from computed tomography angiography to prepare a model for simulations. We found that the streamlines showed a concentrated inflow jet directed straight at the rupture point, and high wall shear stress was found at the point of rupture in the aneurysm sac. Thus specific local hemodynamics may be indicative of the aneurysm rupture site.

Keywords

aneurysm - computational fluid dynamics - rupture risk - surgery - wall shear stress
 

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