Computation of flow pressure fields from magnetic resonance velocity mapping
- 1 October 1996
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 36 (4), 520-526
- https://doi.org/10.1002/mrm.1910360404
Abstract
Magnetic resonance phase velocity mapping has unrivalled capacities for acquiring in vivo multi-directional blood flow information. In this study, the authors set out to derive both spatial and temporal components of acceleration, and hence differences of pressure in a flow field using cine magnetic resonance velocity data. An efficient numerical algorithm based on the Navier-Stokes equations for incompressible Newtonian fluid was used. The computational approach was validated with in vitro flow phantoms. This work aims to contribute to a better understanding of cardiovascular dynamics and to serve as a basis for investigating pulsatile pressure/ flow relationships associated with normal and impaired cardiovascular function.Keywords
This publication has 9 references indexed in Scilit:
- Doppler reconstruction of left ventricular pressure from functional mitral regurgitation: potential importance of varying orifice geometry.Heart, 1995
- Determining cardiac velocity fields and intraventricular pressure distribution from a sequence of ultrafast CT cardiac imagesIEEE Transactions on Medical Imaging, 1994
- Helical and retrograde secondary flow patterns in the aortic arch studied by three-directional magnetic resonance velocity mapping.Circulation, 1993
- A Noninvasive Method of Measuring Max(dP/dt) of the Left Ventricle by Doppler EchocardiographyJournal of Biomechanical Engineering, 1992
- Noninvasive estimation of the instantaneous first derivative of left ventricular pressure using continuous-wave Doppler echocardiography.Circulation, 1991
- The application of phase shifts in NMR for flow measurementMagnetic Resonance in Medicine, 1990
- Determination of left-sided pressure gradients by utilizing Doppler aortic and mitral rergurgitant signals: Validation by simultaneous dual catheter and Doppler studiesJournal of the American College of Cardiology, 1988
- BiodynamicsPublished by Springer Nature ,1984
- Noninvasive assessment of pressure drop in mitral stenosis by Doppler ultrasound.Heart, 1978