FIGURE 9.

MT Z-spectra and ¹H-MRS of immobile and mobile metabolites. Blue and red lines indicate mobile or immobile metabolites, respectively, in all figures. Immobilization does not always induce rNOE dips (as in Ins), but when it does (as in Glu), conventional MRS peaks at the corresponding frequency diminish, showing their complementary nature. Experiments for MT Z-spectra were performed with CW-MT sequence with B₁ of 0.25 μT Experiments for ¹H-MRS spectra were performed with PRESS on the same voxel. Glu, glutamate