title: Calculation of pressure gradients from MR velocity data in a laminar flow model.
abstract: The MR velocity data obtained in a simple geometry and low Reynolds number are employed to calculate pressure gradients using the known solution of the Navier-Stokes equation. Calculations compare favorably with measured results for the simple model presented. The potential usefulness of noninvasive pressure gradient determination from quantitative analysis of imaging-derived velocity distributions is suggested.
authors.affiliation: University of Michigan Medical Center, Department of Radiology, Ann Arbor 48109.
authors.forename: R S
authors.initials: RS
authors.lastname: Adler
authors.forename: T L
authors.initials: TL
authors.lastname: Chenevert
authors.forename: J B
authors.initials: JB
authors.lastname: Fowlkes
authors.forename: J
authors.initials: J
authors.lastname: Pipe
authors.forename: J M
authors.initials: JM
authors.lastname: Rubin
mesh_terms: D001783:Blood Flow Velocity; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008955:Models, Cardiovascular