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Abstract #1522

SQUASHER: Slice quadratic phase with HSn encoding and reconstruction

Steen Moeller1, Xiaoping Wu2, Noam Harel2, Mike Garwood2, and Mehmet Akcakaya1

1Center for Magnetic Resonance Research, Minneapolis, MN, United States, 2University of Minnesota, Minneapolis, MN, United States

For 3D imaging, frequency-swept excitation can be used to obtain broad bandwidth and sharp slab profiles. The quadratic phase from such RF excitation imparts spatiotemporal encoding and can be leveraged for added encoding. Here we show that, by sliding the quadratic phase across the slice-encoding direction, synergy can be achieved when combining frequency-swept excitation with Fourier encoding, which has inherent optimal noise-properties.

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