Arterial segments
| 16 Segments | 11 Segments (Powered) | 11 Segments (Thrombectomy) |
|---|---|---|
| ICA | ICA | ICA |
| M1 | M1 | M1 |
| M2 | M2 | M2 |
| M3 | M3-M4 | M3 |
| M4 | M4 | |
| A1 | A1-A2 | A1 |
| A2 | A2 | |
| Lenticulostriate | Lenticulostriate | |
| Vertebral | Vertebral | Vertebral |
| Basilar | Basilar | Basilar |
| AICA | AICA-PICA-SCA | |
| PICA | ||
| SCA | ||
| Basilar perforators | Basilar perforators | |
| P1 | P1-P2 | P1 |
| P2 | P2 |
Note:—Lenticulostriate indicates lenticulostriate artery perforators; Vertebral, intracranial vertebral artery; Basilar perforators, basilar artery perforating branches; SCA, superior cerebellar artery.