Table 2.
Proportion of jet-like appearance and ICAS-O at different occlusion sites.
| Occlusion site | Jet-like appearance (n = 34) |
ICAS-O (n = 40) |
Emb-O (n = 124) |
|---|---|---|---|
| ICA, n (%) | |||
| Supraclinoid | 4 (11.8) | 4 (10.0) | 19 (15.3) |
| Petro-cavernous | 0 (0) | 2 (5.0) | 15 (12.1) |
| MCA, n (%) | |||
| Origin | 15 (44.1) | 14 (35.0) | 8 (6.5) |
| M1 trunk | 7 (20.6) | 10 (25.0) | 26 (21.0) |
| M1 branch | 3 (8.8) | 3 (7.5) | 26 (21.0) |
| VBA, n (%) | |||
| VA after PICA | 2 (5.9) | 2 (5.0) | 0 (0) |
| BA origin | 1 (2.9) | 1 (2.5) | 1 (0.8) |
| BA after AICA | 2 (5.9) | 2 (5.0) | 11 (8.9) |
| Other vessels, n (%) | 0 (0) | 0 (0) | 18 (15.2) |
ICAS-O, intracranial atherosclerotic stenosis occlusion; Emb-O, embolic occlusion; ICA, internal carotid artery; MCA, middle cerebral artery; M1, first segment of middle cerebral artery; VBA, vertebral basilar artery; VA, vertebral artery; PICA, posterior inferior cerebellar artery; BA, basilar artery; AICA, anterior inferior cerebellar artery.