Table 3.
Spinal MRI findings (Spinal MRI was applicable in 26 patients).
| Frequency | Percentage | |
|---|---|---|
| Unavailable spinal MRI | 6 | |
| Available spinal MRI | 26 | |
| Normal spinal MRI | 3 | 11.5% |
| Abnormal spinal MRI | 23 | 88.5% |
| Timing of applicable spinal MRI | (Of 26 patients with available MRI) | |
| Early after clinical presentation | 8 | 30.8% |
| During follow-up | 10 | 38.5% |
| Both | 8 | 30.8% |
| Level of lesion(s) | (Of 23 patients with abnormal MRI) | |
| Cervical | 7 | 30.4% |
| Thoracic | 4 | 17.4% |
| Both cervical and thoracic | 11 | 47.8% |
| Cervical + thoracic + lumbar | 1 | 4.3% |
| Axial location of lesion(s) | (Of 23 patients with abnormal MRI) | |
| Central | 5 | 21.7% |
| Peripheral | 22 | 95.7% |
| Lateral column | 19 | 82.6% |
| Posterior column | 10 | 43.5% |
| Anterior column | 7 | 30.4% |
| Whole cross-section | 2 | 8.7% |
| Characteristics of lesion(s) | (Of 23 patients with abnormal MRI) | |
| Round/oval-shaped lesion in T2W | 21 | 91.3% |
| Nodular/punctate lesion in T2W | 4 | 17.4% |
| Confluent high-T2W-signal lesions | 4 | 17.4% |
| T1W black hole | 1 | 4.4% |
| Maximal length of the longest lesion (mm) | median (min–max); 25.6 (5.2–101.3) | |
| median (range) | median (IQR); 25.6 (12–47.9) | |
| Maximal length of the longest lesion (mm) | ||
| 5–24 mm | 10 | 43.5% |
| 24.1–44 mm | 6 | 26.1% |
| 44.1–64 mm | 3 | 13.0% |
| 64.1–84 mm | 3 | 13.0% |
| >84 mm | 1 | 4.4% |
| Maximal length of the longest lesion (compared with vertebral segments) | (Of 23 patients with abnormal MRI) | |
| median (min–max); 2 (1–5) | ||
| median (IQR); 2 (1–3) | ||
| Maximal length of the longest lesion (compared with vertebral segments) | (Of 23 patients with abnormal MRI) | |
| <3 segments | 15 | 65.2% |
| ≥3 segments | 8 | 34.8% |
| Presence of gadolinium-enhancing lesion | (Of 23 patients with abnormal MRI) | |
| Not present | 9 | 39.1% |
| Present | 14 | 60.9% |
| Enhancing pattern | (Of 14 patients with enhancing lesion) | |
| Nodular enhancement | 9 | 39.1% |
| Diffuse enhancement | 5 | 21.7% |
| Incomplete ring enhancement | 2 | 8.7% |
| Total number of lesion(s) in T2W | (Of 23 patients with abnormal MRI) | |
| 1–2 lesion(s) | 16 | 69.6% |
| 3–4 lesions | 5 | 21.7% |
| >5 lesions | 2 | 8.7% |
| Total number of gadolinium-enhancing lesion(s) | (Of 23 patients with abnormal MRI) | |
| None | 9 | 39.1% |
| 1 lesion | 10 | 43.5% |
| 2 lesions | 4 | 17.4% |
| Visual assessment of spinal cord volume | (Of 26 patients with available MRI) | |
| Normal according to his/her age | 26 | 81.3% |
| Atrophy | 4 | 12.5% |
| Swelling | 2 | 6.3% |