𝔖 Bobbio Scriptorium
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Simultaneous spatial and spectral selective excitation

✍ Scribed by Craig H. Meyer; John M. Pauly; Albert Macovskiand; Dwight G. Nishimura

Book ID
102955622
Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
938 KB
Volume
15
Category
Article
ISSN
0740-3194

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✦ Synopsis

Abstract

Using a k‐space interpretation of small‐tip excitation, a single excitation pulse has been designed that is simultaneously selective in space and resonant frequency. An analytic expression for the response of this pulse has been derived. The pulse has been implemented on a 1.5‐T imaging system. The pulse has been applied to a rapid gradient‐echo imaging sequence that forms both water and fat images within a breath‐holding interval. These rapid images are free of the chemical shift artifacts at organ boundaries that typically afflict conventional rapid images. The pulse can be applied to a variety of other sequences, such as multislice water/fat sequences and rapid k‐space scanning. © 1990 Academic Press, Inc.

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