Accelerated Simultaneous Multislice Imaging via Linear Phase Modulated Extended Field of View (SMILE)

Slice leakage is a significant issue in simultaneous multislice (SMS) imaging. In this work, we extend POMP and develop a new efficient accelerated SMS acquisition technique: Simultaneous Multislice Imaging via Linear phase modulated Extended field of view (SMILE). SMILE transforms the SMS problem into a 2D imaging task and enables direct implementation of 2D non-SMS-only reconstruction algorithms. SMILE increases the sampling degree of freedom by a factor of the number of slices and could theoretically avoid the significant "slice-leakage" issue.