Profound Increase in Longitudinal Displacements of the Porcine Carotid Artery Wall Can Take Place Independently of Wall Shear Stress: A Continuation Report.
Rydén Ahlgren, Åsa LU
; Steen, Stig
LU
; Segstedt, Simon
LU
; Erlöv, Tobias
LU
; Lindström, Kjell
LU
; Sjöberg, Trygve
LU
; Persson, Hans W
LU
; Ricci, Stefano
; Tortoli, Piero
and Cinthio, Magnus
LU
(2015)
In Ultrasound in Medicine and Biology
41(5).
p.1342-1353
- Abstract
- The mechanisms underlying longitudinal displacements of the arterial wall, that is, displacements of the wall layers along the artery, and the resulting intramural shear strain remain largely unknown. We have already found that these displacements undergo profound changes in response to catecholamines. Wall shear stress, closely related to wall shear rate, represents the viscous drag exerted on the vessel wall by flowing blood. The aim of the work described here was to study possible relations between the wall shear rate and the longitudinal displacements. We investigated the carotid arteries of five anesthetized pigs in different hemodynamic situations using in-house developed non-invasive ultrasound techniques. The study protocol... (More)
- The mechanisms underlying longitudinal displacements of the arterial wall, that is, displacements of the wall layers along the artery, and the resulting intramural shear strain remain largely unknown. We have already found that these displacements undergo profound changes in response to catecholamines. Wall shear stress, closely related to wall shear rate, represents the viscous drag exerted on the vessel wall by flowing blood. The aim of the work described here was to study possible relations between the wall shear rate and the longitudinal displacements. We investigated the carotid arteries of five anesthetized pigs in different hemodynamic situations using in-house developed non-invasive ultrasound techniques. The study protocol included administration of epinephrine, norepinephrine and β-blockade (metoprolol). No significant correlation between longitudinal displacement of the intima-media complex and wall shear rate was found. This result suggests that one or multiple pulsatile forces other than wall shear stress are also working along arteries, strongly influencing arterial wall behavior. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5265697
- author
- Rydén Ahlgren, Åsa
LU
; Steen, Stig
LU
; Segstedt, Simon
LU
; Erlöv, Tobias
LU
; Lindström, Kjell
LU
; Sjöberg, Trygve
LU
; Persson, Hans W
LU
; Ricci, Stefano
; Tortoli, Piero
and Cinthio, Magnus
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Ultrasound in Medicine and Biology
- volume
- 41
- issue
- 5
- pages
- 1342 - 1353
- publisher
- Elsevier
- external identifiers
-
- pmid:25726134
- wos:000352803100021
- scopus:84927571157
- pmid:25726134
- ISSN
- 0301-5629
- DOI
- 10.1016/j.ultrasmedbio.2015.01.005
- language
- English
- LU publication?
- yes
- id
- c4bb9f5a-b135-4892-8a35-40158c356bed (old id 5265697)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/25726134?dopt=Abstract
- date added to LUP
- 2016-04-01 10:48:07
- date last changed
- 2023-08-31 11:34:17
@article{c4bb9f5a-b135-4892-8a35-40158c356bed,
abstract = {{The mechanisms underlying longitudinal displacements of the arterial wall, that is, displacements of the wall layers along the artery, and the resulting intramural shear strain remain largely unknown. We have already found that these displacements undergo profound changes in response to catecholamines. Wall shear stress, closely related to wall shear rate, represents the viscous drag exerted on the vessel wall by flowing blood. The aim of the work described here was to study possible relations between the wall shear rate and the longitudinal displacements. We investigated the carotid arteries of five anesthetized pigs in different hemodynamic situations using in-house developed non-invasive ultrasound techniques. The study protocol included administration of epinephrine, norepinephrine and β-blockade (metoprolol). No significant correlation between longitudinal displacement of the intima-media complex and wall shear rate was found. This result suggests that one or multiple pulsatile forces other than wall shear stress are also working along arteries, strongly influencing arterial wall behavior.}},
author = {{Rydén Ahlgren, Åsa and Steen, Stig and Segstedt, Simon and Erlöv, Tobias and Lindström, Kjell and Sjöberg, Trygve and Persson, Hans W and Ricci, Stefano and Tortoli, Piero and Cinthio, Magnus}},
issn = {{0301-5629}},
language = {{eng}},
number = {{5}},
pages = {{1342--1353}},
publisher = {{Elsevier}},
series = {{Ultrasound in Medicine and Biology}},
title = {{Profound Increase in Longitudinal Displacements of the Porcine Carotid Artery Wall Can Take Place Independently of Wall Shear Stress: A Continuation Report.}},
url = {{http://dx.doi.org/10.1016/j.ultrasmedbio.2015.01.005}},
doi = {{10.1016/j.ultrasmedbio.2015.01.005}},
volume = {{41}},
year = {{2015}},
}