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Abstract #1132

Simultaneous Multislice Acquisition for Magnetic Resonance Elastography

Christian Guenthner1, Jurgen H Runge2,3, Ralph Sinkus2, and Sebastian Kozerke1

1Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, 2Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom, 3Department of Radiology, Academic Medical Center, Amsterdam, Netherlands

We propose the use of simultaneous multislice acquisition for Magnetic Resonance Elastography (MRE) of the full displacement vector field. To this end, multiband composite RF pulses are used for slice excitation in a fast, “eXpresso” type gradient echo based MRE acquisition. Slice and k-line dependent RF-phases are used to shift simultaneously acquired slices leading to improved unfolding performance (CAIPIRINHA). In this abstract, we demonstrate that multiband MRE with CAIPIRINHA can be used to acquire up to three slices simultaneously with only little SNR penalty in a gel phantom and show the feasibility to acquire full-brain images in-vivo.

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