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  4. Shear Stress Metrics and Their Relation to Atherosclerosis: An In Vivo Follow-up Study in Atherosclerotic Mice
 
research article

Shear Stress Metrics and Their Relation to Atherosclerosis: An In Vivo Follow-up Study in Atherosclerotic Mice

De Wilde, David
•
Trachet, Bram  
•
De Meyer, Guido R. Y.
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2016
Annals Of Biomedical Engineering

It is generally accepted that low and oscillatory wall shear stress favors the initiation and development of atherosclerosis. However, a quantitative analysis of the association between shear stress metrics at baseline and lesion prevalence at a later stage is challenging to perform in vivo on a within-subject basis. In this study, we assessed carotid hemodynamics and derived hemodynamic wall parameters from subject-specific fluid-structure interaction simulations in the left and right carotid arteries of 4 ApoE(-/-) mice prior to disease development. We then applied a point-by-point quantitative association (surrogate sample data analysis) between various established and more recent shear related parameters and the extent of macrophage infiltration at a later stage. We conclude that, for the atherosclerotic murine carotid bifurcation, (i) there is an association between hemodynamics and macrophage infiltration; (ii) this correlation is most apparent when assessed at the level of the entire carotid bifurcation; (iii) the strongest spatial correlation between hemodynamics and atherosclerosis development was found for the time averaged wall shear stress (negative correlation) and the relative residence time (positive correlation); (iv) aggregating the data leads to an overestimation of the correlation.

  • Details
  • Metrics
Type
research article
DOI
10.1007/s10439-015-1540-z
Web of Science ID

WOS:000379511100001

Author(s)
De Wilde, David
Trachet, Bram  
De Meyer, Guido R. Y.
Segers, Patrick
Date Issued

2016

Publisher

Springer Verlag

Published in
Annals Of Biomedical Engineering
Volume

44

Issue

8

Start page

2327

End page

2338

Subjects

Fluid-structure interaction

•

Mouse models

•

Hemodynamics

•

Wall shear stress

•

Atherosclerosis

•

CT

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LHTC  
Available on Infoscience
October 18, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/130441
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