Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1762585 | Ultrasound in Medicine & Biology | 2008 | 15 Pages |
Abstract
A simple technique to estimate the wall shear rate in healthy arteries using a clinical ultrasound scanner has been developed. This method uses the theory of fully developed oscillatory flow together with a spectral Doppler trace and an estimate of mean arterial diameter. A method using color flow imaging was compared with the spectral Doppler method in vascular phantoms and found to have errors that were on average 35% greater. Differences from the theoretic value for the time averaged wall shear rate using the spectral Doppler method varied by artery: brachial â9 (1) %; carotid â7 (1) %; femoral â22 (4) %; and fetal aorta â17 (10) %. Test measurements obtained from one healthy volunteer demonstrated the feasibility of the technique in vivo. E-mail: (james.blake@ed.ac.uk)
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
James R. Blake, Siobhan Meagher, Katharine H. Fraser, William J. Easson, Peter R. Hoskins,