T(1) and T(2) selective method for improved SNR in CSF-attenuated imaging: T(2)-FLAIR.

作者信息

Wong E C, Liu T T, Luh W M, Frank L R, Buxton R B

机构信息

University of California, San Diego, San Diego, California, USA.

出版信息

Magn Reson Med. 2001 Mar;45(3):529-32. doi: 10.1002/1522-2594(200103)45:3<529::aid-mrm1071>3.0.co;2-l.

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.