Baseline demographics and characteristics
| IAD | Embolism | P Value | |
|---|---|---|---|
| No. | 19 | 32 | |
| Age (yr) (mean) | 66.89 ± 10.90 | 67.84 ± 10.79 | .763 |
| Female sex (No.) (%) | 6 (31.6) | 11 (34.4) | .838 |
| Hypertension | 17 (89.5%) | 21 (65.6%) | .096a |
| Diabetes | 8 (42.1%) | 6 (18.8%) | .071 |
| Hyperlipidemia | 11 (57.9%) | 12 (37.5%) | .157 |
| Atrial fibrillation | 2 (10.5%) | 13 (40.6%) | .023 |
| Baseline NIHSS (median) (IQR) | 14 (6–23) | 22 (14.5–26.5) | .097b |
| Intravenous rtPA | 4 (21.1%) | 20 (62.5%) | .004 |
| Calcification on brain CT | .018 | ||
| None | 3 (16.7%) | 18 (58.1%) | |
| Calcification in situ | 5 (27.8%) | 4 (12.9%) | |
| Calcification proximal to the occlusion | 10 (55.6%) | 9 (29.0%) | |
| Occlusion location on CTA | <.001 | ||
| Distal BA | 2 (15.4%) | 21 (87.5%) | |
| Middle BA | 5 (38.5%) | 2 (8.3%) | |
| Proximal BA | 4 (30.8%) | 0 (0%) | |
| Intracranial VA | 2 (15.4%) | 0 (0%) | |
| Other and mixed | 0 (0%) | 1 (4.2%) | |
| Presence of PcomA | 16 (84.2%) | 27 (84.4%) | 1.000 |