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Numerical Simulation of Flow Behavior in Basilar Bifurcation Aneurysms Based on 4-Dimensional Computed Tomography Angiography
- Source :
- World Journal of Mechanics. 11:71-82
- Publication Year :
- 2021
- Publisher :
- Scientific Research Publishing, Inc., 2021.
-
Abstract
- Initiation, growth, and rupture of cerebral aneurysms are caused by hemodynamic factors. It is extensively accepted that the cerebral aneurysm wall is assumed to be rigid using computational fluid dynamics (CFD). Furthermore, fluid-structure interactions have been recently applied for simulation of an elastic cerebral aneurysm model. Herein, we examined cerebral aneurysm hemodynamics in a realistic moving boundary deformation model based on 4-dimensional computed tomographic angiography (4D-CTA) obtained by high time-resolution using numerical simulation. The aneurysm of the realistic moving deformation model based on 4D-CTA at each phase was constructed. The effect of small wall deformation on hemodynamic characteristics might be interested. So, four hemodynamic factors (wall shear stress, wall shear stress divergence, oscillatory shear index and residual residence time) were determined from the numerical simulation, and their behaviors were assessed in the basilar bifurcation aneurysm.
- Subjects :
- Materials science
Quantitative Biology::Neurons and Cognition
Computer simulation
Deformation (mechanics)
medicine.diagnostic_test
business.industry
Physics::Medical Physics
Mechanics
Computational fluid dynamics
medicine.disease
Physics::Fluid Dynamics
Aneurysm
Angiography
cardiovascular system
medicine
Shear stress
cardiovascular diseases
business
Computer Science::Distributed, Parallel, and Cluster Computing
Bifurcation
4-Dimensional Computed Tomography
Subjects
Details
- ISSN :
- 21600503 and 2160049X
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- World Journal of Mechanics
- Accession number :
- edsair.doi...........2f1ab140dc29699b3cc6306992552efe