Hemodynamic impacts of left coronary stenosis : a patient-specific analysis

Chaichana, Thanapong and Jewkes, James and Sun, Zhonghua (2013) Hemodynamic impacts of left coronary stenosis : a patient-specific analysis. Acta of Bioengineering and Biomechanics, 15 (3). pp. 107-112. ISSN 1509-409X


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This study analyses the hemodynamic variations surrounding stenoses located at the left coronary bifurcation, and their influence on the wall shear stress (WSS) in realistic coronary geometries. Four patients with suspected coronary artery disease were chosen, and coronary models were reconstructed based on high-resolution CT data. The coronary stenoses were observed at the left circumflex and left anterior descending branches, resulting in a lumen narrowing of >50%. Flow analysis was performed using computational fluid dynamics, to simulate the cardiac flow conditions of the realistic individual patient geometry. Blood flow and WSS changes in the left coronary artery were calculated throughout the entire cardiac phases. Our results revealed that the recirculation regions were found at the poststenotic locations. WSS was found to increase at the stenotic positions in all four patients. There is a strong correlation between coronary stenosis and the hemodynamic changes, which are reflected in blood flow pattern and WSS, based on the realistic left coronary geometries.

Item Type: Article
Additional Information and Comments: Article published in Acta of Bioengineering and Biomechanics, vol 15(3), 2013.
Keywords: Coronary artery disease Computational fluid dynamics Wall shear stress
Faculty / Department: Faculty of Science > Mathematics and Computer Science
Depositing User: Thanapong Chaichana
Date Deposited: 31 Jul 2017 13:17
Last Modified: 31 Jul 2017 13:17
URI: https://hira.hope.ac.uk/id/eprint/1509

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