David Feinberg1,
2, Liyong Chen, 23, An T. Vu4
1Advanced
MRI Technologies, Sebastopol, CA, United States; 2Helen Wills
Neuroscience Institute, University of California, Berkeley, CA, United
States; 3Advanced MRI Technologies, LLC, Sebastopol, CA, United
States; 4CMRR, University of Minnesota, Minneapolis, MN, United
States
Recently the simultaneous multi-slice (SMS) EPI technique which reduces the scan time has been combined with in-plane parallel imaging (e.g. GRAPPA) to achieve high spatial resolution at the cost of increased g-factors, phase drift, motion sensitivity and temporal instability. We introduce Zoomed Multi-Band Imaging (ZOMBI) which combines SMS EPI with outer volume suppression (OVS) instead of GRAPPA and compare against SMS EPI with GRAPPA. We find that ZOMBI achieves high isotropic spatial resolution while maintaining faster TR and improving temporal SNR. This obtainable high resolution is immediately useful for vision science research at 3T and 7T.