Table 4.
Frequency of T2 involvement in delayed postoperative imaging
| PFS |
||||
|---|---|---|---|---|
| Variables | Total (n = 23) | No (n = 13) | Yes (n = 10) | P-value |
| Cerebellum, n (%) | 0.138† | |||
| Bilateral | 8 (100) | 3 (37.5) | 5 (62.5) | |
| None | 7 (100) | 3 (42.9) | 4 (57.1) | |
| Unilateral | 8 (100) | 7 (87.5) | 1 (12.5) | |
| Dentate, n (%) | 0.719† | |||
| Bilateral | 3 (100) | 1 (33.3) | 2 (66.7) | |
| None | 12 (100) | 7 (58.3) | 5 (41.7) | |
| Unilateral | 8 (100%) | 5 (62.5) | 3 (37.5) | |
| Inferior CP, n (%) | 0.371† | |||
| Bilateral | 11 (100) | 5 (45.5) | 6 (54.5) | |
| None | 9 (100) | 5 (55.6) | 4 (44.4) | |
| Unilateral | 3 (100) | 3 (100.0) | 0 | |
| Middle CP, n (%) | 0.589† | |||
| Bilateral | 3 (100) | 1 (33.3) | 2 (66.7) | |
| None | 14 (100) | 9 (64.3) | 5 (35.7) | |
| Unilateral | 6 (100) | 3 (50.0) | 3 (50.0) | |
| Superior CP, n (%) | 0.074† | |||
| Bilateral | 1 (100) | 1 (100.0) | 0 | |
| None | 14 (100) | 10 (71.4) | 4 (28.6) | |
| Unilateral | 8 (100) | 2 (25.0) | 6 (75.0) | |
| Medulla, n (%) | 0.265† | |||
| Bilateral | 2 (100) | 1 (50.0) | 1 (50.0) | |
| None | 16 (100) | 11 (68.8) | 5 (31.3) | |
| Unilateral | 5 (100) | 1 (20.0) | 4 (80.0) | |
| Pons, n (%) | 0.144† | |||
| Bilateral | 3 (100) | 0 | 3 (100.0) | |
| None | 18 (100) | 12 (66.7) | 6 (33.3) | |
| Unilateral | 2 (100) | 1 (50.0) | 1 (50.0) | |
| Midbrain, n (%) | 0.055† | |||
| Bilateral | 3 (100) | 0 | 3 (100.0) | |
| None | 18 (100) | 12 (66.7) | 6 (33.3) | |
| Unilateral | 1 (100) | 1 (100.0) | 0 | |
| Thalamus, n (%) | 0.429† | |||
| Bilateral | 1 (100) | 0 | 1 (100.0) | |
| None | 20 (100) | 12 (60.0) | 8 (40.0) | |
| Cerebral hemisphere, n (%) | 0.171† | |||
| Bilateral | 1 (100) | 0 | 1 (100.0) | |
| None | 19 (100) | 12 (63.2) | 7 (36.8) | |
| Unilateral | 1 (100) | 0 | 1 (100.0) | |
†Exact test; CP = cerebellar peduncles.