Rasim Boyacioglu1,2, Jenni Schulz1, and David G. Norris1,3
1Radboud University, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands, 2Radiology, Case Western Reserve Univesity, Cleveland, OH, United States, 3Erwin L. Hahn Institute, University Duisberg-Essen, Essen, Germany
Multiband Echo-Shifted EPI (MESH) is a
combination of echo shifted 2D multi-slice EPI, in-plane and multiband
acceleration. An additional EPI readout is inserted in the dead-time between
slice selection and the multiband EPI readout. It is useful especially for low
static magnetic field strengths (long optimal TE) and lower spatial resolutions
(short EPI readout). It is shown that echo shifting gradients do not affect
tSNR. Compared to standard and multiband EPI similar RS fMRI results are
obtained at the group and individual subject level. MESH offers a further
acceleration in image acquisition for fMRI at no loss in sensitivity.
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