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Abstract #4333

The Use of Stimulated-Echo EPI to Obtain High b-Value DTI Data at Short TEs on a Clinical Scanner

R. Allen Waggoner1, Thorsten Feiweier2, and Keiji Tanaka1
1Laboratory for Cognitive Brain Mapping, RIKEN - Center for Brain Science, Wako-shi, Japan, 2Siemens Healthcare GmbH, Erlangen, Germany

On clinical scanners, high b-value diffusion studies using SE-EPI suffer from the need for long TEs, which leads to signal loss due to T2 decay. Stimulated-Echo EPI permits high b-values together with short TEs on clinical scanners. We demonstrate that tractograms obtained from high b-value STE-EPI images are clean even in regions where tractograms from SE-EPI images with the same b-values break down.

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