Figure 2.

MR spectrum of sample voxel using a Lorentz–Gaussian line shape, principal resonances were fit for NAA plus N-acetyl-aspartyl-glutamate (2.0 ppm; yellow), Cr plus phosphocreatine (3.0 ppm; red), Ch compounds (3.2 ppm; dark blue), and glutamine + Glx (2.3 ppm; purple), as well as contaminating lipids (other colors). The quality of the spectra is excellent and signal-to-noise, especially for NAA, Cr, and Ch, is high.