Very slow flow imaging.
Two methods allowing imaging of very slow coherent flows are presented. The first method is based on the use of a radiofrequency field gradient. The second method is based on the use of gradients of the main field. Both methods include suppression of signal from stationary spins. A flow contour map is obtained which allows quantitative determination of velocity. The methods were proved to be efficient to image velocities as low as 10 microns.s-1.
Décorps
M
M
Unité de Recherche en Neurobiologie Préclinique, INSERM U318, Pavillon B. Hôpital Albert Michallon, Grenoble, France.
Bourgeois
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D
D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D008833:Microcirculation / Q000502:physiology*; D008955:Models, Cardiovascular; D012212:Rheology; D014867:Water
D014867:Water