TABLE 3.
Mean within-subject coefficients of variation (%) at 3T and 7T.
| Pons |
Thalamus |
|||||||
| 3T (mean ± SE) | Spectra (n) | 7T (mean ± SE) | Spectra (n) | 3T (mean ± SE) | Spectra (n) | 7T (mean ± SE) | Spectra (n) | |
| Glx | 14.0 ± 3.3 | 25/25 | 11.7 ± 2.6 | 23/24 | 8.60 ± 1.49 | 25/25 | 9.1 ± 0.5 | 25/25 |
| Glutamate | NA | NA | 15.9 ± 3.7 | 25/25 | NA | NA | 6.5 ± 1.0 | 25/25 |
| Glutamine | NA | NA | NA | NA | NA | NA | 23.3 ± 3.4 | 25/25 |
| GABA | NA | NA | 23.5 ± 4.2 | 17/25 | NA | NA | 23.1 ± 2.2 | 25/25 |
| tNAA | 2.3 ± 0.5 | 25/25 | 8.1 ± 2.3 | 25/25 | 2.6 ± 0.3 | 25/25 | 2.9 ± 0.4 | 25/25 |
| tCreatine | 4.2 ± 0.8 | 25/25 | 9.8 ± 2.6 | 25/25 | 2.8 ± 0.3 | 25/25 | 3.6 ± 0.9 | 25/25 |
| tCholine | 4.5 ± 0.8 | 25/25 | 10.5 ± 1.4 | 25/25 | 4.5 ± 0.3 | 25/25 | 6.8 ± 1.2 | 25/25 |
| Myo-inositol | 13.0 ± 2.3 | 24/25 | 20.4 ± 3.5 | 25/25 | 17.0 ± 3.6 | 18/25 | 8.0 ± 0.6 | 25/25 |
SE, standard error of the mean; Glx, glutamate + glutamine; GABA, γ-aminobutyric acid; tNAA, N-acetylaspartate + N-acetylaspartyl glutamate; tCreatine, creatine + phophocreatine; tCholine, glycerophosphocholine + phosphocholine; n, numbers; NA, not applicable.