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Single-shot diffusion-weighted trace imaging on a clinical scanner

✍ Scribed by Terry Chun; Aziz M. Uluğ; Peter C. M. van Zijl

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

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✦ Synopsis

Abstract

The single‐shot trace‐weighted acquisition scheme for isotro‐pic diffusion imaging suggested by Mori and van Zijl Magn. Reson. Med. 33, 41–52 (1995) was implemented on a clinical scanner in combination with echo‐planar imaging. The results on phantoms and seven volunteers show that good‐quality multiplanar isotropic diffusion‐weighted images can be obtained within seconds and absolute D~av~ images within 10–40 s, depending on the number of gradient strengths used. However, care has to be taken in using this type of multi‐bipolar‐gradient sequence to avoid measurement of artifactual diffusion constants due to background gradient interference. It is outlined how to test for this interference and how to optimize for the correct experiment.

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