Abstract
We describe two cases of multiple sclerosis (MS) analyzed with Proton MR Spectroscopy ((1)H-MRS) with the voxel placed along the main axis of the normal appearing cervical spinal cord over three main space planes, orthogonally set. Relative concentrations expressed by the absolute concentration ratios of total NAA (tNAA), choline (Cho), myo-inositol (mI) and creatine plus phosphocreatine (Cr) were compared with the metabolites of ten healthy volunteers. We found a significant increase in mI/Cr and a small increase in Cho/Cr in the first patient, whereas the second patient had a decrease in NAA/Cr and NAA/Cho ratios. 1H-MRS will disclose biochemical changes in MS, even in normal appearing spinal cord, as already described in normal appearing cerebral tissue: these biochemical changes may provide significant information on disease prognosis.
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