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Abstract:
The upfield part of the spectrum has thus far been well-characterized using magnetic resonance spectroscopy; however, the downfield part at 5-10ppm remains less so, particularly in humans. This work aims to improve metabolite characterization by calculating the T2’s of peaks downfield in grey matter at 7 T. We fitted downfield spectra to a heuristic model and obtained T2’s for several peaks of interest; the T2’s are all fairly similar, but significantly shorter than those reported for upfield peaks in the brain, which are approximately 70ms or longer depending on the structure.