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T 1 and T 2 selective method for improved SNR in CSF‐attenuated imaging: T 2 ‐FLAIR
Author(s) -
Wong Eric C.,
Liu Thomas T.,
Luh WenMing,
Frank Lawrence R.,
Buxton Richard B.
Publication year - 2001
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 - 10.1002/1522-2594(200103)45:3<529::aid-mrm1071>3.0.co;2-l
Subject(s) - fluid attenuated inversion recovery , weighting , pulse sequence , nuclear magnetic resonance , pulse (music) , magnetization transfer , chemistry , nuclear medicine , physics , magnetic resonance imaging , optics , medicine , radiology , acoustics , detector
We present here a method for improving SNR in CSF‐attenuated imaging relative to the standard technique of using an inversion pulse and imaging at the null point of CSF. In this new method the inversion pulse is replaced with a 90 x –180 y –90 x preparation sequence that provides T 1 and T 2 selectivity. This allows the tissue magnetization to recover more rapidly, allows for the use of shorter TR values, and reduces T 1 weighting. Magn Reson Med 45:529–532, 2001. © 2001 Wiley‐Liss, Inc.