Table 1.
Arterial occlusion sites in patients with minor stroke treated with IVT.
| Site of occlusion | N = 2553 | Per cent of N | Per cent of all occlusions |
|---|---|---|---|
| ICA-T or ICA+MCA | 20 | 0.8 | 3.1 |
| ICA | 101 | 4.0 | 15.9 |
| ACA | 13 | 0.5 | 2.0 |
| MCA-M1 | 92 | 3.6 | 14.5 |
| MCA-M2 | 147 | 5.8 | 23.1 |
| MCA-M3 | 39 | 1.5 | 6.1 |
| PCA | 51 | 2.0 | 8.0 |
| Basilar | 32 | 1.3 | 5.0 |
| Vertebral | 62 | 2.4 | 9.8 |
| Site unspecified | 78 | 3.1 | 12.3 |
| Any occlusion | 635 | 24.9 | |
| No occlusion | 1918 | 75.1 |
ACA: anterior cerebral artery; ICA-T: terminal internal carotid artery; ICA+MCA: tandem ICA and middle cerebral artery occlusion; IVT: intravenous thrombolysis; M1, M2, M3: first, second, and third segments of the MCA; PCA: posterior cerebral artery.