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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Magn Reson Imaging. 2019 Nov 7;65:109–113. doi: 10.1016/j.mri.2019.10.004

Table 1.

Metabolite levels / model fit errors by scan, and between-scan (within-subject) %CV from HERMES / MEGA-PRESS

Scan 1 Scan 2
Level (I.U.) Mean (SD) Fit Error (%) Mean (SD) Level (I.U.) Mean (SD) Fit Error (%) Mean (SD) %CV
HERMES (TE = 80 ms)
 GABA 3.77 (0.58) 8.83 (2.27) 3.91 (0.76) 7.72 (1.85) 16.74
 Glx 14.58 (1.48) 3.59 (0.85) 14.05 (1.19) 3.42 (0.79) 6.36
 GSH 1.90 (0.52) 7.29 (2.16) 2.02 (0.47) 6.36 (2.59) 19.04
MEGA-PRESS (TE=120 ms)
 GSH 3.91 (0.48) 8.51 (1.69) 3.83 (0.39) 8.77 (1.86) 7.25

Note: TE = echo time, I.U. = Institutional Units, CV = Coefficient of Variation, Glx = glutamate+glutamine, GSH = glutathione.