Magnetic field mapping in NMR imaging.
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.
Willcott
M R
MR
NMR Imaging, Inc., Houston, Texas 77092.
Mee
G L
GL
Chesick
J P
JP
D005583:Fourier Analysis; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008280:Magnetics; D008953:Models, Anatomic