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Computation of flow pressure fields from magnetic resonance velocity mapping
Author(s) -
Yang GuangZhong,
Kilner Philip J.,
Wood Nigel B.,
Underwood S. Richard,
Firmin David N.
Publication year - 1996
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910360404
Subject(s) - computation , flow (mathematics) , nuclear magnetic resonance , magnetic resonance imaging , physics , computer science , mechanics , algorithm , medicine , radiology
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.