Multi-Slice MRSI of the Human Brain at 7 Tesla using Dynamic B0 & B1 Shimming

Vincent Oltman Boer¹, Dennis W. J. Klomp¹, Christoph Juchem², Peter R. Luijten¹, Robin A. de Graaf²

Multi-slice MRSI of the human brain at ultra high field is challenging due to both static field inhomogeneity, spatial B1 variations and SAR limits. In this work it is shown how a low-power water and lipid suppression can be combined with pulse acquire-MRSI localization to generate a high SNR multi-slice MRSI sequence for high field. Steady state water suppression, RF shimmed lipid suppression and dynamic B0 and B1 shim updating were used to improve spectral quality in all slices.