scholarly journals Comparison of Exercise-induce Endothelial Shear Stress Between Poiseuille’S Law and Womersley’S Approximation

2018 ◽  
Vol 50 (5S) ◽  
pp. 181
Author(s):  
Francisco J. Morales ◽  
Brycen J. Ratcliffe ◽  
Caleb D. Harrison ◽  
Evan J. Bockover ◽  
Sierra Crowe ◽  
...  
Keyword(s):  
Shear Stress ◽  
Poiseuille's Law ◽  
Endothelial Shear Stress ◽  
Poiseuille’S Law

scholarly journals The Importance of Velocity Acceleration to Flow-Mediated Dilation

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Lee Stoner ◽  
Joanna M. Young ◽  
Simon Fryer ◽  
Manning J. Sabatier
Keyword(s):  
Blood Flow ◽  
Shear Stress ◽  
Vascular Tone ◽  
Cardiac Cycle ◽  
Blood Velocity ◽  
Rate Of Change ◽  
Flow Mediated Dilation ◽  
Flow Pulsatility ◽  
Poiseuille's Law ◽  
Poiseuille’S Law

The validity of the flow-mediated dilation test has been questioned due to the lack of normalization to the primary stimulus, shear stress. Shear stress can be calculated using Poiseuille's law. However, little attention has been given to the most appropriate blood velocity parameter(s) for calculating shear stress. The pulsatile nature of blood flow exposes the endothelial cells to two distinct shear stimuli during the cardiac cycle: a large rate of change in shear at the onset of flow (velocity acceleration), followed by a steady component. The parameter typically entered into the Poiseuille's law equation to determine shear stress is time-averaged blood velocity, with no regard for flow pulsatility. This paper will discuss (1) the limitations of using Posieuille's law to estimate shear stress and (2) the importance of the velocity profile—with emphasis on velocity acceleration—to endothelial function and vascular tone.

scholarly journals Endothelial Shear Stress

2010 ◽  
Vol 3 (5) ◽  
pp. 578-585 ◽  
Author(s):  
Raphaël Duivenvoorden ◽  
Ed VanBavel ◽  
Eric de Groot ◽  
Erik S.G. Stroes ◽  
Jonathan A. Disselhorst ◽  
...  
Keyword(s):  
Shear Stress ◽  
Endothelial Shear Stress

scholarly journals Thin-Capped Atheromata With Reduced Collagen Content in Pigs Develop in Coronary Arterial Regions Exposed to Persistently Low Endothelial Shear Stress

2013 ◽  
Vol 33 (7) ◽  
pp. 1494-1504 ◽  
Author(s):  
Konstantinos C. Koskinas ◽  
Galina K. Sukhova ◽  
Aaron B. Baker ◽  
Michail I. Papafaklis ◽  
Yiannis S. Chatzizisis ◽  
...  
Keyword(s):  
Shear Stress ◽  
Collagen Content ◽  
Endothelial Shear Stress

scholarly journals Role of Endothelial Shear Stress in the Natural History of Coronary Atherosclerosis and Vascular Remodeling

2007 ◽  
Vol 49 (25) ◽  
pp. 2379-2393 ◽  
Author(s):  
Yiannis S. Chatzizisis ◽  
Ahmet Umit Coskun ◽  
Michael Jonas ◽  
Elazer R. Edelman ◽  
Charles L. Feldman ◽  
...  
Keyword(s):  
Shear Stress ◽  
Natural History ◽  
Vascular Remodeling ◽  
Coronary Atherosclerosis ◽  
History Of ◽  
Endothelial Shear Stress

Impact of endothelial shear stress on absorption process of resorbable magnesium scaffold: A BIOSOLVE-II substudy

2021 ◽  
Author(s):  
Yuichi Ozaki ◽  
Kayode O. Kuku ◽  
Antonis Sakellarios ◽  
Michael Haude ◽  
Alexandre Hideo-Kajita ◽  
...  
Keyword(s):  
Shear Stress ◽  
Absorption Process ◽  
Endothelial Shear Stress
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