Table 2.
Baseline MRI features.
| MRI measurements a | |
|---|---|
| Number of supratentorial T2 lesions | |
| 0–8, n/total (%) | 12/83 (14.5) |
| ≥9, n/total (%) | 71/83 (85.5) |
| Number of subtentorial T2 lesions, median (range) | 1 (0, 9) |
| 0–2, n/total (%) | 63/83 (75.9) |
| ≥3, n/total (%) | 20/83 (24.1) |
| Total T2 lesion volume, median (range), mL | 16.2 (0.1, 85.2) |
| <30 mL, n/total (%) | 59/83 (71.1) |
| ≥30 mL, n/total (%) | 24/83 (28.9) |
| Total brain volume, median (range), mL | 1,416.0 (1,162.0, 1,850.0) |
| <1,500 mL, n/total (%) | 59/83 (71.1) |
| ≥1,500 mL, n/total (%) | 24/83 (28.9) |
| Number of PRL, median (range) | 3 (0, 30) |
| 0, n/total (%) | 14/76 (18.4) |
| 1–3, n/total (%) | 30/76 (39.5) |
| ≥4, n/total (%) | 32/76 (42.1) |
| Total PRL volume, median (range), mL | 0.3 (0.0, 11.5) |
| <1 mL, n/total (%) | 55/76 (72.4) |
| ≥1 mL, n/total (%) | 21/76 (27.6) |
| PRL/T2 lesion volume, median (range), % | 2.3 (0.0, 49.0) |
| <1.0%, n/total (%) | 25/76 (32.9) |
| 1.0%–4.0%, n/total (%) | 24/76 (31.6) |
| ≥4.0%, n/total (%) | 27/76 (35.5) |
a
A total of 83 patients had baseline MRI performed at our center, in which T2 lesion number, T2 lesion volume, and total brain volume were calculated. Among the 83 patients, 76 had baseline SWI, with PRL number, PRL volume, and PRL/T2 lesion volume percentage calculated.
MRI, magnetic resonance imaging; SWI, susceptibility-weighted imaging; PRL, paramagnetic rim lesion.