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Chemical‐Shift Imaging
Author(s) -
Guilfoyle D. N.,
Mansfield P.
Publication year - 1985
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910020507
Subject(s) - planar , nuclear magnetic resonance , chemical shift , signal (programming language) , magnet , fluorine , spectral line , field (mathematics) , magnetic field , noise (video) , computational physics , spin echo , materials science , physics , computer science , magnetic resonance imaging , image (mathematics) , mathematics , artificial intelligence , medicine , computer graphics (images) , quantum mechanics , astronomy , pure mathematics , metallurgy , radiology , programming language
The echo‐planar shift mapping (EPSM) technique, a variant of echo‐planar imaging (EPI), is evaluated with theoretical studies using computer simulations and with experimental studies using fluorine resonances in phantoms. In situations where the signal‐to‐noise ratio permits, it is shown that EPSM can produce in a few seconds chemical‐shift spectra at all points in a specified spin‐density image corresponding to a selected slice. Applications of this technique are likely to be for proton and fluorine chemical‐shift measurements and rapid studies of magnetic field inhomogeneities produced by magnet nonalignment and field shifts around magnetic materials.© 1985 Academic Press,Inc.© 1985 Academic Press,Inc.