Key result
CFD modeling shows carotid stenosis nature and severity explain pressure gradient and wall shear stress.
Why the study?
The study aimed to explore the use of medical image reconstruction and computational fluid dynamics to analyze patient-specific carotid bifurcation hemodynamics for diagnosis and therapy planning.
Computational fluid dynamics based on medical imaging can successfully model patient-specific carotid bifurcation hemodynamics, offering a potential tool for diagnosis and therapy planning.
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Patient-specific CFD carotid models may support virtual therapy planning; leaves open prospective outcome validation before clinical use.
This paper presents the study of cardiovascular models based on medical image reconstruction and computational fluid dynamics. Our aim is to provide a virtual reality platform for flow analysis and a potential therapy planning tool for vascular diseases. Through comprehensive computational studies, the hemodynamic models of ten patient-specific carotid bifurcations are examined in terms of their geometries and flow properties. The nature of stenosis at various section of the anatomical structure are used as indicators for explaining the difference in flow properties such as pressure gradient and wall shear stress. The case studies are based on different anatomies presented by the left, right or common carotid vessel, various degrees of geometrical non-planarity, and variation in severity of stenosis in carotid arteries for a group of patients. The success of this study presents the potential of using medical imaging and numerical simulation to provide existing clinical prerequisites for diagnosis and therapeutic treatment.
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Tu et al. (2011) studied Carotid artery stenosis (n=10). Computational fluid dynamics modeling was evaluated on Hemodynamic flow properties (pressure gradient and wall shear stress). Computational fluid dynamics modeling of 10 patient-specific carotid bifurcations demonstrated that the nature and severity of stenosis explain differences in pressure gradient and wall shear stress.
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