title: Velocity quantification in magnetic resonance imaging.
abstract: A variety of methods has been developed for quantitating flow in vivo. These are usually based on the principles of velocity-phase or TOF information. The former allows a point-by-point 2D image of velocity, but also has other manifestations involving real-time 1D projections or 1D projections with 1D velocity information (flow zeugmatography). The TOF methods use the in-flow of unsaturated spins into a saturated region (for example) to estimate flow. The concepts, features, and clinical applications of these and other techniques are reviewed in this article.
authors.affiliation: Department of Radiology, University Hospitals of Cleveland, OH 44106.
authors.forename: E M
authors.initials: EM
authors.lastname: Haacke
authors.forename: A S
authors.initials: AS
authors.lastname: Smith
authors.forename: W
authors.initials: W
authors.lastname: Lin
authors.forename: J S
authors.initials: JS
authors.lastname: Lewin
authors.forename: D A
authors.initials: DA
authors.lastname: Finelli
authors.forename: J L
authors.initials: JL
authors.lastname: Duerk
mesh_terms: D001783:Blood Flow Velocity; D001921:Brain / Q000502:physiology*; D002533:Cerebral Angiography; D005583:Fourier Analysis; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*