TU Darmstadt / ULB / TUbiblio

MR-based wall shear stress measurements in fully developed turbulent flow using the Clauser plot method

Shokina, Nina and Bauer, Andreas and Teschner, Gabriel and Buchenberg, Waltraud B. and Tropea, Cameron and Egger, Herbert and Hennig, Jürgen and Krafft, Axel J. (2019):
MR-based wall shear stress measurements in fully developed turbulent flow using the Clauser plot method.
In: Journal of Magnetic Resonance, Elsevier, pp. 16-21, 305, ISSN 10907807,
DOI: 10.1016/j.jmr.2019.05.009,
[Online-Edition: https://doi.org/10.1016/j.jmr.2019.05.009],
[Article]

Abstract

In arterial blood flow wall shear stress (WSS) quantifies the frictional force that flowing blood exerts on a vessel wall. WSS can be directly estimated from phase-contrast (PC) MR velocity measurements and has been suggested as a biomarker in cardio-vascular diseases. We present and investigate the application of the Clauser plot method for estimating WSS in fully developed turbulent stationary flow using PC velocity measurements. The Clauser plot method estimates WSS from the logarithmic region of boundary layer in fully developed turbulent stationary flow. The Clauser plot method was evaluated using 2D PC-MR phantom measurements at 3 T for different in-plane resolutions at various Reynolds numbers. WSS values derived from the Clauser plot were compared to results from Laser Doppler Velocimetry (LDV) measurements and theoretical results calculated using the friction factor formula for smooth pipe flow. For all Reynolds numbers, WSS values derived from the Clauser plot were in good agreement with results from LDV measurements and values using the friction factor formula (relative deviations ∼5%). Furthermore, Clauser plot derived results were almost independent of spatial resolution, in contrast to WSS results obtained with our in-house software tool for MR-based WSS quantification showing relative deviations of more than 100%. In fully developed turbulent flow, the Clauser plot method provides highly consistent WSS independent of the underlying spatial resolution. Therefore, it renders a valuable approach for MR-based WSS estimates in controllable flow settings. Although its direct in vivo applicability is severely limited because of the different flow character, it may serve as helpful approach for validation of MR-based WSS quantification algorithms prior to their clinical application.

Item Type: Article
Erschienen: 2019
Creators: Shokina, Nina and Bauer, Andreas and Teschner, Gabriel and Buchenberg, Waltraud B. and Tropea, Cameron and Egger, Herbert and Hennig, Jürgen and Krafft, Axel J.
Title: MR-based wall shear stress measurements in fully developed turbulent flow using the Clauser plot method
Language: English
Abstract:

In arterial blood flow wall shear stress (WSS) quantifies the frictional force that flowing blood exerts on a vessel wall. WSS can be directly estimated from phase-contrast (PC) MR velocity measurements and has been suggested as a biomarker in cardio-vascular diseases. We present and investigate the application of the Clauser plot method for estimating WSS in fully developed turbulent stationary flow using PC velocity measurements. The Clauser plot method estimates WSS from the logarithmic region of boundary layer in fully developed turbulent stationary flow. The Clauser plot method was evaluated using 2D PC-MR phantom measurements at 3 T for different in-plane resolutions at various Reynolds numbers. WSS values derived from the Clauser plot were compared to results from Laser Doppler Velocimetry (LDV) measurements and theoretical results calculated using the friction factor formula for smooth pipe flow. For all Reynolds numbers, WSS values derived from the Clauser plot were in good agreement with results from LDV measurements and values using the friction factor formula (relative deviations ∼5%). Furthermore, Clauser plot derived results were almost independent of spatial resolution, in contrast to WSS results obtained with our in-house software tool for MR-based WSS quantification showing relative deviations of more than 100%. In fully developed turbulent flow, the Clauser plot method provides highly consistent WSS independent of the underlying spatial resolution. Therefore, it renders a valuable approach for MR-based WSS estimates in controllable flow settings. Although its direct in vivo applicability is severely limited because of the different flow character, it may serve as helpful approach for validation of MR-based WSS quantification algorithms prior to their clinical application.

Journal or Publication Title: Journal of Magnetic Resonance
Volume: 305
Publisher: Elsevier
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Fluid Mechanics and Aerodynamics (SLA)
Profile Areas
Profile Areas > Thermo-Fluids & Interfaces
Date Deposited: 05 Aug 2019 08:42
DOI: 10.1016/j.jmr.2019.05.009
Official URL: https://doi.org/10.1016/j.jmr.2019.05.009
Export:
Suche nach Titel in: TUfind oder in Google

Optionen (nur für Redakteure)

View Item View Item