A Review On the Effect of Temporal Geometric Variations of the Coronary Arteries On the Wall Shear Stress and Pressure Drop.

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dc.contributor.authorFreidoonimehr, N.
dc.contributor.authorChin, R.
dc.contributor.authorZander, A.C.
dc.contributor.authorArjomandi, M.
dc.date.issued2022
dc.description.abstractTemporal variations of the coronary arteries during a cardiac cycle are defined as the superposition of the changes in the position, curvature, and torsion of the coronary artery axis markers and the variations in the lumen cross-sectional shape due to the distensible wall motion induced by the pulse pressure and contraction of the myocardium in a cardiac cycle. This review discusses whether modeling of the temporal variations of the coronary arteries is needed for the investigation of hemodynamics specifically in timecritical applications such as a clinical environment. The numerical modelings in the literature that model or disregard the temporal variations of the coronary arteries on the hemodynamic parameters are discussed. The results in the literature show that neglecting the effects of temporal geometric variations is expected to result in about 5% deviation of the time-averaged pressure drop and wall shear stress values and also about 20% deviation of the temporal variations of hemodynamic parameters, such as time-dependent wall shear stress and oscillatory shear index. This review study can be considered as a guide for future studies to outline the conditions in which temporal variations of the coronary arteries can be neglected while providing a reliable estimation of hemodynamic parameters.
dc.description.statementofresponsibilityNavid Freidoonimehr, Rey Chin, Anthony Zander, Maziar Arjomandi
dc.identifier.citationJournal of Biomechanical Engineering, 2022; 144(1):010801-1-010801-13
dc.identifier.doi10.1115/1.4051923
dc.identifier.issn0148-0731
dc.identifier.issn1528-8951
dc.identifier.orcidFreidoonimehr, N. [0000-0002-2850-7861]
dc.identifier.orcidChin, R. [0000-0002-2709-4321]
dc.identifier.orcidZander, A.C. [0000-0003-4099-8146]
dc.identifier.orcidArjomandi, M. [0000-0002-7669-2221]
dc.identifier.urihttps://hdl.handle.net/2440/146337
dc.language.isoen
dc.publisherAmerican Society of Mechanical Engineers
dc.rights© 2022 by ASME
dc.source.urihttps://doi.org/10.1115/1.4051923
dc.subjectCoronary arteries; Flow (Dynamics); Cardiac cycle, Vessels; Hemodynamics; Pressure drop
dc.subject.meshCoronary Vessels
dc.subject.meshHeart
dc.subject.meshStress, Mechanical
dc.subject.meshModels, Cardiovascular
dc.subject.meshComputer Simulation
dc.subject.meshHemodynamics
dc.titleA Review On the Effect of Temporal Geometric Variations of the Coronary Arteries On the Wall Shear Stress and Pressure Drop.
dc.typeJournal article
pubs.publication-statusPublished

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