Results of the assessment of parameters 1–5
| Parameter | PD (n = 27) | PSP (n = 25) |
|---|---|---|
| 1) Upper midbrain profile sign | ||
| Convex | 24 | 8 |
| Linear | 3 | 11 |
| Concave | 0 | 6 |
| 2) Global midbrain atrophy | ||
| Normal | 21 | 8 |
| Mild | 6 | 8 |
| Moderate | 0 | 6 |
| Severe | 0 | 3 |
| 3) Tegmental T2 hyperintensity | ||
| Yes | 0 | 7 |
| No | 27 | 18 |
| 4) Putaminal T2 hypointensity | ||
| Yes | 4 | 6 |
| No | 23 | 19 |
| 5) Putaminal proton-density hyperintensity | ||
| Yes | 0 | 0 |
| No | 27 | 25 |