Suchandrima Banerjee1, Yuval Zur2, Atsushi Takahashi1, Ajit Shankaranarayanan1, Douglas A.C. Kelley3
1Global Applied Science Lab, GE Healthcare, Menlo Park, CA, United States; 2GE Healthcare, Tirat Carmel, Israel; 3Global Applied Science Lab, GE Healthcare, San Francisco, CA, United States
Simultaneous multi-slice excitation can reduce the repetition time needed to acquire a fixed number of slices. Its potential has recently been demonstrated for high resolution full-brain diffusion imaging and functional MRI. In previous works that exploited coil sensitivity differences to separate slices that were simultaneously excited by multi-band excitation, calibration data was acquired from a separate scan where each slice was excited independently. In this work we propose a time-interleaved parallel imaging approach to slice separation which avoids additional prescan, provides co-localization between calibration and the actual acquisition and allows periodic re-computation of the kernel in a time-series acquisition.