Changes in T2 signal intensity and contrast enhancement patterns
| Group 1 (n = 32) Contrast Enhancement | Group 2 (n = 39) Contrast Enhancement | Group 3 (n = 8) Contrast Enhancement | ||||
|---|---|---|---|---|---|---|
| Decreased | Persistent | Decreased | Persistent | Decreased | Persistent | |
| Type 1 (n = 4) | 0 | 0 | 0 | 2 | 0 | 2 |
| Type 2 (n = 3) | 2 | 0 | 0 | 1 | 0 | 0 |
| Type 3 (n = 68) | 27 | 1 | 36 | 0 | 4 | 0 |
| Type 4 (n = 4) | 2 | 0 | 0 | 0 | 2 | 0 |