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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