Estimated numbers of intra-arterial (IA) ischemic stroke interventions in 2005 and 2006 in the USA
| 2005 | 2006 | |
| Concentric medical IA interventions in the USA | 1400 | 2300 |
| Estimated IA mix (concentric/total) | 32–65% | 32–65% |
| Total IA interventions in the USA | ∼2200–4400 | ∼3500–7200 |