Frequency of pathological values of1H-MRS metabolite ratios in HIV infected patients
| Diagnosis (No) | Low NAA/Cr* n (%) | Low NAA/Cho* n (%) | High Cho/Cr† n (%) |
|---|---|---|---|
| HIV-related encephalopathies (25) | 4/25 (16) | 8/25 (32) | 3/25 (12) |
| HIV-toxoplasmosis (20) | 4/20 (20) | 13/20 (65) | 8/20 (40) |
| HIV-lymphomas (7) | 5/7 (71) | 6/7 (86)§ | 4/7 (57)¶ |
| HIV-PML (8) | 7/8 (87.5)‡ | 5/8 (62.5) | 2/8 (25) |
Ratio values: * < M-2SD of NC; † > M+2SD of NC.
Fisher exact test: ‡ p=0.000002; § p=0.0003; ¶ p=0.0007.