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Improvement of spiral MRI with the measured k-space trajectory

✍ Scribed by Xiaoping Ding; Jean Tkach; Paul Ruggieri; John Perl; Thomas Masaryk

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
529 KB
Volume
7
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

The k‐space trajectory of a spiral imaging sequence was measured with a self‐encoding technique. The image quality improved dramatically when reconstructed with the measured k‐space trajectory. There were substantial artifacts in images reconstructed with the derived k‐space trajectory under the assumption of gradient system linearity. The results indicated the non‐linearity of the gradient system and the effectiveness of the correction technique.

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