Calculation of pressure gradients from MR velocity data in a laminar flow model.
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.
Adler
R S
RS
University of Michigan Medical Center, Department of Radiology, Ann Arbor 48109.
Chenevert
T L
TL
Fowlkes
J B
JB
Pipe
J
J
Rubin
J M
JM
D001783:Blood Flow Velocity; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008955:Models, Cardiovascular