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Abstract #2413

Virtual Slice Concept for Improved Simultaneous Multi-Slice MRI Employing an Extended Leakage Constraint

Suhyung Park1, Liyong Chen2, Alexander Beckett1, and David Feinberg1,2

1University of California, Berkeley, Berkeley, CA, United States, 2Advanced MRI Technologies, Sebastopol, CA, United States

Simultaneous multi-slice (SMS) MRI has recently drawn attentions in its use by acquiring linearly combined signals contributed from all excited slices. In this work, we introduce a novel, SMS reconstruction that extends an inter-slice leakage constraint to intra-slice aliasing with virtual slice concept by generalizing parallel MRI as a special case, thus directly estimating the individual slices from undersampled SMS data. Motivated by the leakage block, we generate virtual slices from intra-slice aliasing signals and then penalize these virtual slices as well as real slices simultaneously by keeping only aliasing-free slice of interest while enforcing inplane aliasing and neighboring slices to zeros, respectively.

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