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Optimization of chemical shift selective suppression of fat
Author(s) -
Kuroda Kagayaki,
Oshio Koichi,
Mulkern Robert V.,
Jolesz Ferenc A.
Publication year - 1998
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.1910400402
Subject(s) - flip angle , chemistry , nuclear magnetic resonance , component (thermodynamics) , biological system , physics , magnetic resonance imaging , thermodynamics , biology , medicine , radiology
Strategies to optimize flip angles for chemical shift selective fat suppression are discussed. Mathematical models for fat suppression in spoiled gradient recalled acquisition, spin echo, and RARE, which incorporate steady state conditions and multiple spectral components of fat, are developed. The optimal suppression flip angle is found to be larger than that determined with a single fat component model by more than 10° due to contributions from unflipped components such as olefinic and glycerol protons that lie outside the suppression band.