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Abstract #2874

Overdiscrete Correction of B 0 Inhomogeneity in Accelerated 1 H FID-MRSI at 7T

Thomas Kirchner 1 , Ariane Fillmer 1 , Klaas P Pruessmann 1 , and Anke Henning 1,2

1 Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, 2 Max Planck Institute for Biological Cybernetics, Tuebingen, Germany

Residual B 0 inhomogeneity after shimming leads to incoherent spatial averaging due to phase and frequency variations over the FOV. We extended the previously introduced Overdiscretized Target-Driven MRSI reconstruction method to take B 0 variations into account in a quasi-continuous manner. A gain in SNR is achieved compared to conventional voxel-wise B 0 correction.

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