TABLE 3.
Abnormal neuroimaging findings
| Neuroimaging Finding | Number (%) of Patients, All Imaging Studies (n=1705) | Number (%) of Patients, Final Imaging Studies (n=1389) | ||
|---|---|---|---|---|
| Early (n=416) | Late (n=1289) | Early (n=105) | Late (n=284) | |
| Any abnormal finding(s) | 1069 (62.7%) | 243 (62.5%) | ||
| 276 (66.3%) | 793 (61.6%) | 54 (51.4%) | 189 (66.5%) | |
| Volume loss | 458 (26.9%) | 152 (39.1%) | ||
| 92 (22.1%) | 366 (28.4%) | 28 (26.7%) | 124 (43.7%) | |
| MRI signal or CT attenuation abnormality | 338 (19.8%) | 81 (20.8%) | ||
| 83 (20.0%) | 255 (19.8%) | 12 (11.4.%) | 69 (24.3%) | |
| Fluid collection or hemorrhage | 286 (16.8%) | 52 (13.4%) | ||
| 110 (26.4%) | 176 (13.7%) | 18 (17.1%) | 34 (12.0%) | |
| Enlarged ventricles | 244 (14.3%) | 31 (8.0%) | ||
| 46 (11.1%) | 198 (15.4%) | 4 (3.8%) | 27 (9.5%) | |
| Cerebral edema | 118 (6.9%) | 22 (5.7%) | ||
| 65 (15.6%) | 53 (4.1%) | 11 (10.5%) | 11 (3.9%) | |
| Encephalomalacia | 89 (5.2%) | 24 (6.2%) | ||
| 11 (2.6%) | 78 (6.1%) | 1 (1%) | 23 (8.1%) | |
| Poor gray/white differentiation | 43 (2.5%) | 7 (1.8%) | ||
| 26 (6.3%) | 17 (1.3%) | 6 (5.7%) | 1 (0.4%) | |
| Gliosis | 34 (2.0%) | 18 (4.6%) | ||
| 3 (0.7%) | 31 (2.4%) | 1 (1%) | 17 (6.0%) | |
| Infarction | 31 (1.8%) | 8 (2.1%) | ||
| 10 (2.4%) | 21 (1.6%) | 2 (1.9%) | 6 (2.1%) | |
| Calcifications | 31 (1.8%) | 3 (0.8%) | ||
| 2 (0.5%) | 29 (2.2%) | 0 (0%) | 3 (1.1%) | |
| Lesions | 24 (1.4%) | 3 (0.8%) | ||
| 3 (0.7%) | 21 (1.6%) | 0 (0%) | 3 (1.1.%) | |
| Ischemia | 23 (1.3%) | 6 (1.5%) | ||
| 16 (3.8%) | 7 (0.5%) | 5 (4.8%) | 1 (0.4%) | |
| Necrosis | 9 (0.5%) | 3 (0.8%) | ||
| 4 (1.0%) | 5 (0.4%) | 1 (1%) | 2 (0.7%) | |