Overdiscrete Correction of B0 Inhomogeneity in Accelerated 1H FID-MRSI at 7T

Kirchner, T; Fillmer, A; Pruessmann, KP; Henning, Anke

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Overdiscrete Correction of B0 Inhomogeneity in Accelerated 1H FID-MRSI at 7T

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Henning, Anke
Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Kirchner, T., Fillmer, A., Pruessmann, K., & Henning, A. (2014). Overdiscrete Correction of B0 Inhomogeneity in Accelerated 1H FID-MRSI at 7T. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.

Cite as: https://hdl.handle.net/21.11116/0000-0001-32E7-2

Abstract

Residual B0 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 B0 variations into account in a quasi-continuous manner. A gain in SNR is achieved compared to conventional voxel-wise B0 correction.