Abstract #2988
Multiband Echo-Shifted (MESH) EPI for improved acquisition efficiency of T2* weighted EPI
David G Norris 1,2 , Jenni Schulz 1 , and Rasim Boyacioglu 1
1
Donders Institute for Brain, Cognition, and
Behaviour, Radboud University, Nijmegen, Netherlands,
2
Erwin
L Hahn Institute, University Duisberg-Essen, Essen,
Germany
We demonstrate the application of echo shifted EPI,
combined with in plane acceleration using GRAPPA, and
multiband imaging. GRAPPA reduces the echo train length,
so that the effective TE is close to the optimum for
performing fMRI at 3T. Using an isotropic spatial
resolution of 3.5mm, GRAPPA factor 3, and MB3 whole
brain coverage at 3T was possible with TE 30ms, and TR
224ms. Image quality was comparable to that obtained
using multiband but no echo shifting. This approach will
greatly improve the efficiency of fMRI, particularly at
lower field strengths and course to intermediate spatial
resolutions.
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