Table 3.
Mean values and standard deviations (SD) of the NAA/Cr ratios in PCG and PWM regions with the results depending on the duration of the disease
| Duration of the disease | Group 1 2–5 y |
Group 2 6–9 y |
Group 3 10–13 y |
Group 4 14–18 y |
|---|---|---|---|---|
| Number of patients | 12 | 15 | 18 | 10 |
| PCG (Posterior cingulate gyrus) | ||||
| Control group | 1.77 (0.09) | 1.77 (0.09) | 1.77 (0.09) | 1.77 (0.09) |
| HT patients | 1.65 (0.09) | 1.61 (0.08) | 1.50 (0,11) | 1.45 (0.09) |
| p = 0.023 | p = 0.01 | p = 0.009 | p = 0.001 | |
| PWM (Parietal white matter) | ||||
| Control group | 1.97 (0.13) | 1.97 (0.13) | 1.97 (0.13) | 1.97 (0.13) |
| HT patients | 1.81 (0.13) | 1.76 (0.14) | 1.70 (0.14) | 1.61 (0.12) |
| p = 0.05 | p = 0.028 | p = 0.01 | p = 0.002 | |