PMC8294783_01
(A) MRS imaging slab (yellow rectangle) and saturation bands (grey lines) were positioned on T1-weighted MR image on the basis of the anatomical landmarks of the motor hand territory (omega shape) (B) MRS output (LCModel) from one MRS voxel located in left motor cortex in a stroke patient (S1, Table 1) shows distinct peaks corresponding to NAA (at 2.02 ppm), Glx (2.05-2.50 ppm), Cr (3.02 ppm), Cho (3.22 ppm), and mIn (3.56 ppm) at baseline (signal-to-noise ratio of 18) and after therapy (signal-to-noise ratio of 17). Cramer-Rao lower bands (CRB) were less than 15 for all neurochemicals in these voxels. ppm, parts per million; GM, grey matter in that voxel, WM, white matter in that voxel.
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F1
Table 2) and a full width at half maximum of the point spread function of all metabolites <20 Hz for all spectra (Figure 1B). Therefore, the differences in metabolites levels presented below are not due to regional structural or spectral resolution differences.