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Abstract #1734

Highly Accelerated Parallel 1H MRSI at 7T with Simultaneous Suppression of Near- And Far-Reaching Signal Leakage

Thomas Kirchner1, Ariane Fillmer1, Peter Boesiger1, Klaas Paul Pruessmann1, Anke Henning1

1Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

We tailor the SENSE reconstruction algorithm towards accelerated parallel MRSI at ultra-high field strengths. Through calculation on an overdiscretized spatial grid and careful tuning of the spatial response function we achieve efficient suppression of signal contaminations caused by voxel bleeding without the increase of the effective voxel size that would be caused by conventional filtering techniques. We demonstrate up to 9-fold accelerated proton MRSI in vivo at 7T.