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Spatial localization combining projection presaturation with a two-dimensional excitation pulse

✍ Scribed by Keith St. Lawrence; Ting-Yim Lee; Mark Henkelman

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
488 KB
Volume
40
Category
Article
ISSN
0740-3194

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✦ Synopsis

Abstract

Single‐shot spatial localization of short T~1~ nuclei was achieved by outer volume suppression with projection presaturation followed by selective excitation of the desired volume with a two‐dimensional (2D) pulse. After the projection, presaturation with a 2D pulse avoided signal contamination from magnetization regrowth in the outer volume, whereas preceding the 2D pulse with projection presaturation reduced any unwanted excitation in the outer volume caused by the 2D pulse. The improvement in outer volume suppression achieved by combining these two techniques was demonstrated by images collected after the application of projection presaturation alone, a 2D pulse alone, and the two combined.

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