title: Magnetic field mapping in NMR imaging.
abstract: The Hahn spin preparation sequence provides a practical means for rapid and sensitive mapping of magnetic field inhomogeneity in NMR imaging applications. Choice of the rf pulse delay times tau 1 and tau 2 as well as conditions and limitations on the proposed use of this sequence for chemical shift imaging are discussed.
authors: NMR Imaging, Inc., Houston, Texas 77092.
authors: M R
authors: MR
authors: Willcott
authors: G L
authors: GL
authors: Mee
authors: J P
authors: JP
authors: Chesick
mesh_terms: D005583:Fourier Analysis; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008280:Magnetics; D008953:Models, Anatomic