Keywords: Spectroscopy, High-Field MRI, Paralel Transmit and B1 shimmingWe demonstrated that applying a fast implementation of an RF phase shimming method enabled the acquisition of localized MR spectra in different regions of the human brain including B1 challenging areas, such as the hippocampus and prefrontal cortex, using a commercially available pTx coil on a clinical platform at 7T. RF efficiency was increased by ~100% cerebellum and PFC while ~50-75% for pons and hippocampus. The most favorable flip angle distributions were obtained for the cerebellum and the prefrontal cortex. Fast B1 shimming with advanced MRS methodology enables high-quality single voxel spectra at 7T using a commercially available setup.
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