Cervicomedullary junction involvement | 9 (60%) | 6 (23%) |
Medulla oblongata involvement | 4 (27%) | 1 (4%) |
Cord expansion ratio (mean) (onset ≤2 months)b | 1.35 ± 0.15 | 1.24 ± 0.15 |
Cord expansion ratio (mean) (onset ≤15 days)c | 1.34 ± 0.17 | 1.24 ± 0.17 |
Bright spotty lesion | | |
Negative | 1 (7%) | 18 (69%) |
Positive | 14 (93%) | 8 (31%) |
Involved segment | | |
Cervical | 5 (33%) | 7 (27%) |
Cervicothoracic | 8 (53%) | 5 (19%) |
Thoracic | 2 (13%) | 10 (38%) |
Thoracolumbar | 0 (0%) | 1 (4%) |
Holocord | 0 (0%) | 3 (12%) |
No. of segments involved (mean) | 9 ± 4 | 7 ± 4 |
Axial distribution | | |
Central | 10 (67%) | 21 (81%) |
Peripheral | 4 (27%) | 4 (15%) |
Both | 1 (7%) | 1 (4%) |
>Half of the cord area | 12 (80%) | 24 (92%) |
Enhancement | | |
No enhancement | 4 (27%) | 6 (23%) |
<50% enhancement | 9 (60%) | 17 (65%) |
>50% enhancement | 0 (0%) | 0 (0%) |
Not available | 2 (13%) | 3 (12%) |