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T1 maps from shifted spin echoes and stimulated echoes

✍ Scribed by Stefan Ropele; Roland Bammer; Rudolf Stollberger; Franz Fazekas

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 216 KB
Volume: 46
Category: Article
ISSN: 0740-3194
DOI: 10.1002/mrm.1323

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✦ Synopsis

Abstract

A new pulse sequence for fast multislice T~1~ mapping is presented. This method is based on calculating T~1~ from spin echo (SE) and stimulated echo (STE) images obtained with different degrees of T~1~ weighting, and uses the interleaved acquisition scheme of the fast phase acquisition of composite echoes (FastPACE) technique. In contrast to the FastPACE technique, the two echoes are sampled separately. Experimental comparisons confirm that the new sequence layout overcomes most of the FastPACE restrictions, such as its motion sensitivity and the need for a fully complex data set. Moreover, this method offers a higher precision for long T~1~ values and a further reduction of acquisition time. Magn Reson Med 46:1242–1245, 2001. © 2001 Wiley‐Liss, Inc.

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