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Single-Shot GRASE Imaging without Fast Gradients

✍ Scribed by Koichi Oshio; David A. Feinberg

Book ID
102532351
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
306 KB
Volume
26
Category
Article
ISSN
0740-3194

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✦ Synopsis

Abstract

Based on the CPMG sequence, gradient‐ and spin‐echo (GRASE) echo train length is limited by T2 decay rather than the T2^*^ decay and phase error in echo‐planar techniques, permitting a longer image acquisition period. An ultrafast GRASE sequence, utilizing a single excitation, generates a 128 × 56 true T2‐weighted image in 200 ms on an unmodified commercial scanner without fast gradient switching, extreme field homogeneity, or fat signal suppression.

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