Gradient blips in the slice direction improve the flexibility of simultaneous fMRI acquisitions of distributed brain regions

Recently, an approach has been presented to acquire different regions distributed in the brain in a single projection image with a high temporal resolution. To distinguish the signals of the different target regions unambiguously, their projections must not overlap which constrains the positions of the regions and the orientation of the projection plane. Here, the approach is extended by gradient blips in the slice direction in order to shift the projections of the different target regions relative to each other (similar to blipped-CAIPIRINHA). Thus, the positions of the target regions and the image plane can be chosen more flexibly.

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