Table 1:
MR spectroscopy metabolite ratios of GBMs and aerobic abscesses
| Variable | Maximum Cho/Cr | Maximum Cho/NAA | Maximum LL/Cr-n | Maximum Cho/Cho-n | Minimum Cr/Cr-n | Minimum NAA/NAA-n | Cho-n/Cr-n | Cho-n/NAA-n |
|---|---|---|---|---|---|---|---|---|
| GBM | 3.38 ± 1.09 | 3.88 ± 2.13 | 2.72 ± 1.45 | 1.98 ± 0.53 | 0.53 ± 0.16 | 0.44 ± 0.09 | 1.01 ± 0.11 | 0.74 ± 0.14 |
| Abscess | 1.77 ± 0.49 | 1.48 ± 0.51 | 2.11 ± 0.67 | 0.81 ± 0.21 | 0.48 ± 0.2 | 0.5 ± 0.15 | 0.98 ± 0.15 | 0.72 ± 0.13 |
| P | .001 | .006 | NS (.198) | <.001 | NS (.451) | NS (.387) | NS (.614) | NS (.728) |
Note:—Cho indicates choline; Cr, creatine; NAA, N-acetylaspartate; LL, lipid and lactate; -n, normal; NS, not significant; GBM, glioblastoma multiforme.