MRI measurement of wall shear stress vectors in bifurcation models and comparison with CFD predictions
Open Access
- 31 October 2001
- journal article
- research article
- Published by Wiley in Journal of Magnetic Resonance Imaging
- Vol. 14 (5), 563-573
- https://doi.org/10.1002/jmri.1220
Abstract
Steady fluid flow was studied in a simple bifurcation model and in a physiologically realistic model of the human carotid bifurcation. Wall shear stress (WSS) vectors were calculated from phase‐contrast (PC) magnetic resonance imaging (MRI) measurements of the velocity field. Velocity measurements in the inflow regions were also used as boundary conditions for computational fluid dynamics (CFD) calculations of WSS, which were compared with those derived from MRI alone. In regions of well‐behaved flow, MRI and CFD estimates of WSS were in good general agreement. In regions of disturbed flow, for example near the bifurcation, the quality of the MRI measurements was sufficient for reliable calculation of WSS vectors when a sensitive surface coil was used. The combination of MRI and CFD would seem to be a powerful technique for the investigation of flow phenomena. J. Magn. Reson. Imaging 2001;14:563–573.Funding Information
- Engineering and Physical Sciences Research Council (EPSRC)
- Marie Curie Research Training Grant from the European Union
This publication has 12 references indexed in Scilit:
- Blood flow and vessel mechanics in a physiologically realistic model of a human carotid arterial bifurcationJournal of Biomechanics, 2000
- Reconstruction of blood flow patterns in a human carotid bifurcation: A combined CFD and MRI studyJournal of Magnetic Resonance Imaging, 2000
- Reduction of electromagnetic interference from a commercially available MR-compatible flow simulatorJournal of Medical Engineering & Technology, 2000
- Quantitation of circumferential subpixel vessel wall position and wall shear stress by multiple sectored three‐dimensional paraboloid modeling of velocity encoded cine MRMagnetic Resonance in Medicine, 1998
- Magnetic resonance image processing and structured grid generation of a human abdominal bifurcationComputer Methods and Programs in Biomedicine, 1998
- The Combination of Magnetic Resonance Angiography and Computational Fluid Dynamics: A Critical ReviewCritical Reviews in Biomedical Engineering, 1998
- Determination of wall shear stress in the aorta with the use of MR phase velocity mappingJournal of Magnetic Resonance Imaging, 1995
- Pulsatile velocity distribution and wall shear rate measurement using pulsed Doppler ultrasoundJournal of Biomechanics, 1994
- The Role of Fluid Mechanics in the Localization and Detection of AtherosclerosisJournal of Biomechanical Engineering, 1993
- Atheroma and arterial wall shear - Observation, correlation and proposal of a shear dependent mass transfer mechanism for atherogenesisProceedings of the Royal Society of London. B. Biological Sciences, 1971