Shear stress depends on vascular territory: comparison between common carotid and brachial artery

1  Department of Surgery, University Hospital Maastricht, 6202 AZ Maastricht; and 2  Department of Biophysics, University of Maastricht, Cardiovascular Research Institute Maastricht, 6200 MD Maastricht, The Netherlands Shear stress (SS) is thought to be constant throughout the vascular system. Evide...

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Bibliographic Details
Published in:Journal of applied physiology (1985) 2003-02, Vol.94 (2), p.485-489
Main Authors: Dammers, Ruben, Stifft, Frank, Tordoir, Jan H. M, Hameleers, Jeroen M. M, Hoeks, Arnold P. G, Kitslaar, Peter J. E. H. M
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Blood vessels
Blood vessels and receptors
Blood Viscosity
Brachial Artery - diagnostic imaging
Brachial Artery - physiology
Cardiology
Carotid Artery, Common - diagnostic imaging
Carotid Artery, Common - physiology
Comparative analysis
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Stress
Stress, Mechanical
Ultrasonography
Vertebrates: cardiovascular system
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Summary:1  Department of Surgery, University Hospital Maastricht, 6202 AZ Maastricht; and 2  Department of Biophysics, University of Maastricht, Cardiovascular Research Institute Maastricht, 6200 MD Maastricht, The Netherlands Shear stress (SS) is thought to be constant throughout the vascular system. Evidence for this supposition is scarce, however. To verify this hypothesis in vivo, we assessed common carotid (CCA) and brachial artery (BA) peak and mean wall shear rate (SR) noninvasively in 10 healthy volunteers (23.7 ± 3.4 yr) with an ultrasound SR estimation system. SS was estimated from SR and calculated whole blood viscosity. SR was higher ( P  
ISSN:8750-7587
1522-1601
DOI:10.1152/japplphysiol.00823.2002