Aortic valve leaflet wall shear stress characterization revisited: impact of coronary flow. Issue 5 (4th April 2017)

• Record Type: Journal Article
• Authors: Cao, K.; Sucosky, P.
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 20:Issue 5(2017)
• Page Start: 468
• Page End: 470
• Publication Date: 2017-04-04
• Subjects: Aortic valve -- coronary flow -- fluid–structure interaction -- hemodynamics -- wall shear stress -- aortic sinus; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; Biomechanics -- Periodicals; Biomedical Engineering -- methods -- Periodicals; Computing Methodologies -- Periodicals; 612.7
• DOI: 10.1080/10255842.2016.1244266
• Languages: English
• ISSNs: 1025-5842

Abstract

Abstract: Computational characterizations of aortic valve hemodynamics have typically discarded the effects of coronary flow. The objective of this study was to complement our previous fluid–structure interaction aortic valve model with a physiologic coronary circulation model to quantify the impact of coronary flow on aortic sinus hemodynamics and leaflet wall shear stress (WSS). Coronary flow suppressed vortex development in the two coronary sinuses and altered WSS magnitude and directionality on the three leaflets, with the most substantial differences occurring in the belly and tip regions.