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Abstract #4411

2D-SENSE for Simultaneous Multi Slice Imaging

Benjamin Zahneisen 1 , Rasim Boyacioglu 2 , Thomas Ernst 1 , and Benedikt A. Poser 3

1 School of Medicine, University of Hawaii, Honolulu, HI, United States, 2 Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands, 3 Maastricht University, Maastricht, Netherlands

Simultaneous multi-slice (SMS) imaging has recently gained in popularity, especially for 2D single-shot sequences like EPI. Established reconstruction techniques for SMS acquisitions are SENSE/GRAPPA or slice-GRAPPA when CAIPIRINHA is used. With a few exceptions, most SMS reconstructions require a two-step approach to first disentangle the aliased slices, and then perform in-plane parallel reconstruction, or vice versa. We propose a 2D-SENSE reconstruction as a general one-step approach to reconstruct SMS data with arbitrarily undersampled Cartesian k-space (CAIPI-like patterns) in phase and/or slice directions. In case of additional in-plane undersampling it provides an easy-to-implement, contrast independent, one-step reconstruction along both undersampled dimensions.

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