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Problems with achieving saturation using methods based on bursts of rf pulses with spoilers in magnetic resonance imaging
Author(s) -
Young I. R.,
Bydder G. M.,
Bryant D. J.
Publication year - 1989
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.1910110112
Subject(s) - saturation (graph theory) , artifact (error) , magnetic resonance imaging , nuclear magnetic resonance , materials science , physics , optics , computational physics , computer science , mathematics , medicine , radiology , artificial intelligence , combinatorics
Abstract Attempts at saturation by nonselective rf pulses, followed by gradient spoiler pulses, are sometimes used as the basis of a method of measuring T 1 in magnetic resonance imaging, because a method of this type is perceived as being less affected by slice shape artifact than partial saturation methods. This note suggests that, unless care is taken, this assumption can be quite erroneous.