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Author(s): Luísa Costa Sousa
Catarina F. Castro
Carlos C. António
André Santos
Rosa Santos
Pedro Castro
Elsa Azevedo
João Manuel R.S. Tavares
Title: Haemodynamic conditions of patient-specific carotid bifurcation based on ultrasound imaging
Issue Date: 2014
Abstract: The purpose of this paper is to complement the characterisation of patient-specific carotid artery bifurcation haemodynamics based on image data obtained by Doppler ultrasound imaging. A methodology for patient-specific 3D luminal surface reconstruction followed by structured hexahedral meshing of the volume and blood flow simulation is presented. Quantitative descriptors of the flow based on wall shear stress (WSS) are used to compare healthy and stenosed carotid bifurcation haemodynamic disturbances. Independently on the presence of stenosis, the internal carotid artery has been identified as a region of abnormal high values of oscillating shear index and relative residence time and low values of time averaged WSS. For the healthy carotid bifurcation, WSS descriptors manage to capture flow disturbances at the external carotid artery. This work addresses the lack of quantitative analysis on anatomically realistic stenosed carotid bifurcations. © 2014 © 2014 Taylor & Francis.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional
FMUP - Artigo em Revista Científica Internacional

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