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Calculation of signal intensities in hybrid sequences for fast NMR imaging

✍ Scribed by Ralf Deichmann; Holger Adolf; Ulrike Nöth; Erwin Kuchenbrod; Christian Schwarzbauer; Axel Haase

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
736 KB
Volume
34
Category
Article
ISSN
0740-3194

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✦ Synopsis

Abstract

A number of techniques that recently have been used for fast NMR‐imaging are based on a hybrid sequence of echo planar imaging (EPI) and FLASH imaging: after each NMR excitation several k‐space lines are measured. The complete k‐space is covered by performance of several excitations. It has been observed that there is usually an optimal hybrid sequence that maximizes the signal‐to‐noise ratio. In this work, a method is presented that allows a determination of the optimal sequence as a function of the relaxation times T~1~ and T~2~^*^.

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