PT  - JOURNAL ARTICLE
AU  - Wolansky, Leo J.
AU  - Finden, Steven G.
AU  - Chen, Janet
AU  - Hanna, Rafik
AU  - Holodny, Andrei I.
AU  - Ahmad, Imtiaz
AU  - Liu, Wen Ching
AU  - Contractor, Sohail
TI  - Optimization of Gray/White Matter Contrast with Fast Inversion Recovery for Myelin Suppression: A Comparison of Fast Spin-Echo and Echo-Planar MR Imaging Sequences
DP  - 1999 Oct 01
TA  - American Journal of Neuroradiology
PG  - 1653--1657
VI  - 20
IP  - 9
4099  - http://www.ajnr.org/content/20/9/1653.short
4100  - http://www.ajnr.org/content/20/9/1653.full
SO  - Am. J. Neuroradiol.1999 Oct 01; 20
AB  - Summary: We compared two MR imaging sequences, fast inversion recovery for myelin suppression (FIRMS) and echo-planar FIRMS (EP-FIRMS), for depicting gray/white matter contrast. In 18 patients, the frequency bandwidth (BW) was optimized for each sequence; in nine patients, the BW was held constant. In the BW-optimized group, the mean contrast-to-noise ratio (C/N) was three times higher with the FIRMS sequence. In the BW-constant group, the mean C/N was 27% higher with the EP-FIRMS sequence; however, geometric distortion degraded the EP-FIRMS images excessively. For optimal gray/white contrast, FIRMS appears to be the superior pulse sequence.