General summary of capabilities of level 1, 2, and 3 centers
| Level 1 Center | Level 2 Center | Level 3 Center | |
|---|---|---|---|
| Offers full spectrum of neuroendovascular therapy (including aneurysm treatment, surgical and endovascular, arteriovenous malformations, a rteriovenous fistulas, etc) | Yes | No | No |
| Offers endovascular stroke therapy | Yes | Yes | No |
| Offers intravenous tissue plasiminogen activator | Yes | Yes | Yes |
| Minimum No of stroke patients per year | 250 | 100 | 50 |
| Minimum thrombectomy volume per year | 50 | 50 | N/A |
| Dedicated neuro-intensive care unit | Yes | Optional | Not needed |
| Dedicated stroke unit | Yes | Yes | Yes |
| Open neurosurgical services on site | Yes | Optional | Not needed |
| Geographic restriction? | No | Yes (should be more than 2 hours' transport time from a level 1 center) | No |
| Inter-facility transfers | Receives cases from level 1 and 2 centers | Will transfer some cases to a level 1 center. Will occasionally receive transfers from level 3 centers if no level 1 center is available within 2 hours from the level 3 center | Has standardized transfer processes in place with a level 1 center (preferable), or a level 2 center |