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. Author manuscript; available in PMC: 2012 Jun 13.
Published in final edited form as: Acad Radiol. 2012 May;19(5):607–612. doi: 10.1016/j.acra.2012.02.004

Figure 1.

Figure 1

Voxel placement and resulting spectrum. Sagittal (a–c) and axial (d,e) T1 images showing voxel placements for the right anterior insula (ant ins), right posterior insula (post ins), and anterior cingulate (ACC). (f) Representative magnetic resonance spectrum from the posterior insula using MEGA-PRESS spectral editing technique. Combined measure of glutamate and glutamine (Glx) is resolved at 3.8 ppm, γ-aminobutyric acid (GABA) at 3.0 ppm with an inverted N-acetylaspartate (NAA) peak at 2.0 ppm. DN, diabetic neuropathy; HC, healthy control; thal, thalamus.