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Reduction of susceptibility artifact in gradient-echo imaging

✍ Scribed by Z. H. Cho; Y. M. Ro

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
401 KB
Volume
23
Category
Article
ISSN
0740-3194

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✦ Synopsis

Abstract

A new technique with which susceptibility artifact in gradient‐echo imaging can be reduced substantially by use of a tailored RF pulse is described. The proposed technique can ideally be applied to the case where high local magnetic field inhomogeneity is dominated by the susceptibility. The signal loss and void phenomena due to susceptibility in a voxel are studied and a correction method is also proposed. The description of the tailored RF pulse and its proposed application are given and experimental results obtained using a human volunteer with a 2.0‐T KAIS NMR system are presented. © 1992 Academic Press, Inc.

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