Title :
Analysis of velocity profiles with nonsteady flow in tube models using MRI
Author :
Fei, Ding-Yu ; Kraft, Kenneth A. ; Fatouros, Panos P.
Author_Institution :
Virginia Commonwealth Univ., Richmond, VA, USA
Abstract :
A time-of-flight magnetic resonance imaging method was used to measure velocity profiles for pure oscillatory flow, steady plus oscillatory flow and pulsatile flow in axisymmetrical tube models within normal physiological flow conditions. The results obtained from the images are compared with the theoretical predictions, and good agreement is observed. The instantaneous flow rates calculated from the images also agree well with those measured using an ultrasonic flowmeter
Keywords :
biomedical NMR; haemodynamics; velocity measurement; haemodynamics; instantaneous flow rates; magnetic resonance imaging; nonsteady flow; normal physiological flow conditions; pulsatile flow; pure oscillatory flow; steady plus oscillatory flow; time-of-flight magnetic resonance imaging method; tube models; velocity profiles analysis; Biomedical measurements; Fluid flow control; Fluid flow measurement; Magnetic resonance imaging; Pumps; Radio frequency; Testing; Ultrasonic variables measurement; Valves; Velocity measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95848
