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Abstract #1632

Phase-offset Multiplanar Echo-planar Imaging (POMP-EPI) to Accelerate fMRI Acquisition without Parallel Imaging

Patricia Lan1, Haisam Islam1, and Gary Glover1

1Stanford University, Stanford, CA, United States

Simultaneous-multislice (SMS) has significantly improved fMRI acquisition due to its increase in SNR efficiency. However, SMS requires parallel-imaging in the slice-direction, which may be inapplicable due to the scarcity of receiver-coils with adequate sensitivity in the slice-direction. Hence, we propose the POMP-EPI method, which accelerates fMRI acquisition without using parallel-imaging. POMP-EPI works by using Gz-gradient blips in an EPI sequence to shift each of the simultaneously excited slices into different regions of an extended FOV, such that no aliasing occurs, resulting in simple reconstruction of images, shorter TRs, and increased SNR efficiency.

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