TICI scale [104]
| Category | Description |
|---|---|
| Grade 0 | No perfusion |
| Grade 1 | Minimal flow past the occlusion but no perfusion |
| Grade 2a | Minor partial reperfusion (< 50%) |
| Grade 2b | Major partial reperfusion (> 50%) |
| Grade 3 | Complete reperfusion with no flow defects |