Components of the ACORNS grading scale
| Item | Categories | Points |
| Baseline ASPECT score | 8–10 | 0 |
| 6–7 | 1 | |
| <6 | 3 | |
| Collateral circulation | Good | 0 |
| Poor | 2 | |
| Fast blOod glucose | ≤7.0 | 0 |
| 7.1–11.1 | 1 | |
| >11.1 | 2 | |
| History of hypertension (bloOd pressure) | No | 0 |
| Yes | 1 | |
| IVT before thrombectomy (rt-PA) | No | 0 |
| Yes | 1 | |
| Reperfusion status (mTICI) | 2b-3 | 0 |
| 0–2a | 2 | |
| Baseline NIHSS score | <13 | 0 |
| 13–20 | 1 | |
| >20 | 2 | |
| Occlusion Site | MCA | 0 |
| ICA | 2 |
ASPECT, Alberta Stroke Program Early CT; ICA, internal carotid artery; IVT, intravenous thrombolysis; MCA, middle cerebral artery; mTICI, modified Thrombolysis In Cerebral Infarction; NIHSS, National Institutes of Health Stroke Scale; rt-PA, recombinant tissue plasminogen activator.