Haemodynamic conditions of patient-specific carotid bifurcation based on ultrasound imaging

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Luísa Costa Sousa (Author) FEUP; Catarina F. Castro (Author) FEUP; Carlos C. António (Author) FEUP; André Santos (Author) Other; Rosa Santos (Author) FMUP; Pedro Castro (Author) FMUP; Elsa Azevedo (Author) FMUP; João Manuel R.S. Tavares (Author) FEUP

Journal

Title: Computer Methods in Biomechanics and Biomedical Engineering: Imaging and Visualization

Vol. 2 No. 3

Pages: 157-166

ISSN: 2168-1163

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge

Scopus - 19 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-00H-P19

DOI: 10.1080/21681163.2013.875486

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10