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Figure 3: Fit results for point-resolved spatially localized 1H MR spectrum (3000/20; 128 signals acquired; voxel size, 16 cm3) obtained at 1.5 T (Signa; GE Healthcare, Milwaukee, Wis) from white matter in centrum semiovale of an 18-year-old control subject. Parameterized fitting with metabolite basis set fitting algorithm TDFDfit was used. At top are experimental spectrum, fitted spectrum, and residuals. Below are traces for the individual components that add up to the best fit (see reference 100 for definition of abbreviations). Some metabolites were split into two spectra, providing the freedom of differential T2 values for different protons in the same molecule. Baseline spectrum was obtained from a saturation recovery experiment. (Reprinted, with permission, from reference 100.)
