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An optimized RF coil was constructed for 7T, Phosphorus (31P) Magnetic Resonance Spectroscopic Imaging (MRSI) of the whole brain including the cerebellum. The cerebellum is a region not well covered by most existing 31P coils. The design consisted of an optimized 16-rung high-pass birdcage transmit coil and a 24-channel phased array receive coil affixed to a custom head-shaped former. The coil provided high sensitivity to 31P signals across the whole brain and brainstem. In vivo 31P 3D CSI experiments showed high quality spectra with regional PCr SNR values near the cerebellum comparable to values near the brain centre.
Hovagimian et al. (Wed,) studied this question.