The measurement of cerebral metabolites using highly homologous localization techniques
and similar shimming methods was performed in the human brain at 1.5 and 4 T as well as
in the dog and rat brain at 9.4 T. In rat brain, improved resolution was achieved by shimming
all first-and second-order shim coils using a fully adiabatic FASTMAP sequence. The spectra
showed a clear improvement in spectral resolution for all metabolite resonances with
increased field strength. Changes in cerebral glutamine content were clearly observed at 4 T …