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Diffusion-weighted MR spectroscopy (DW-MRS) can measure diffusion properties of cell type-specific and intracellular metabolites. However, for advanced microstructure modeling, diffusion of brain metabolites has to be measured at specific length scales and with specific structural sensitivity. To this end, new diffusion encoding strategies have been developed, but not all have found their ways into DW-MRS. In this work, we fill this gap for spherical-tensor-encoding (STE), providing the first evidence that useful diffusion metrices of human brain metabolites can be quantified by combining DW-MRS, STE, and ultra-strong gradients.
Döring et al. (Wed,) studied this question.