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An assessment of spin‐echo rotating‐frame imaging for spatially localized determination of short T 2 relaxation times in vivo
Author(s) -
Dixon Ruth M.,
Styles Peter
Publication year - 1993
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.1910290119
Subject(s) - relaxation (psychology) , nuclear magnetic resonance , spin echo , pulse (music) , range (aeronautics) , spectroscopy , spin–spin relaxation , frame (networking) , field (mathematics) , echo (communications protocol) , materials science , chemistry , spin–lattice relaxation , physics , magnetic resonance imaging , optics , computer science , mathematics , medicine , radiology , pure mathematics , telecommunications , computer network , quantum mechanics , detector , nuclear quadrupole resonance , composite material
The rotating frame method of localized spectroscopy can be augmented by the inclusion of a refocusing pulse to enable the measurement of T 2 relaxation times. This technique is particularly appropriate for determining short relaxation parameters due to the absence of time consuming switched B 0 field gradients. We have evaluated the accuracy of this protocol by measuring localized T 2 s in the range of 1 to 20 ms. Preliminary data obtained from muscle and liver of normal and iron overloaded human subjects are also presented.