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Deuterium MRS imaging (DMRSI) has emerged as an important neuro-metabolic imaging tool. We compared the performance of 4-channel and 8-channel deuterium head array coils for 7T human brain DMRSI through electromagnetic simulation, phantom and in vivo measurements. Both simulation and phantom studies show that the 4-channel array coil produced more than twice the RF magnetic field (B1) than the 8-channel array coil. Whole-brain DRMSI data with high spatial (0.7 cc nominal voxel) and temporal (2.5 min) resolutions was collected from five healthy subjects using a 4-channel head array coil, showing excellent SNR throughout the human brain.
Li et al. (Wed,) studied this question.