Procedural details
| Number/range | %/SD | |
| Procedural success | 95 | 100% |
| Access, catheters and anatomy | ||
| Significant cervical ICA tortuosity | 11/89 | 12% |
| Cavernous ICA grade | ||
| Ia | 24 | 27% |
| Ib | 36 | 40% |
| II | 8 | 9% |
| III | 14 | 16% |
| IV | 7 | 8% |
| Distal intracranial catheter used | ||
| Navien 0.058 inch | 5 | 5% |
| Navien 0.072 inch | 3 | 3% |
| Catalyst 5 0.058 inch | 72 | 76% |
| Sofia | 3 | 3% |
| InNeuroCo 0.058 inch | 12 | 13% |
| Distal intracranial catheter position | ||
| Cervical | 1 | 1% |
| Petrous | 1 | 1% |
| Proximal cavernous | 39 | 41% |
| Distal cavernous | 31 | 33% |
| Supraclinoid | 14 | 15% |
| M1 | 3 | 3% |
| V4 | 5 | 5% |
| Basilar | 1 | 1% |
| 0.027 inch microcatheter used | ||
| Marksman | 1 | 1% |
| Phenom | 3 | 3% |
| VIA | 91 | 96% |
| Case characteristics | ||
| Fluoroscopy time (min) | 40.0 (15.8–116.4) | ±19.8 |
| Radiation exposure (mGy) | 2260 (825–7014) | ±1123 |
| Vasospasm (verapamil infusion) | 14 | 15% |
| Access-related complications | 2 | 2% |
| Iatrogenic dissection* | 1 | 1% |
| Groin hematoma | 1 | 1% |
*Iatrogenic dissection from positioning of the distal intracranial catheter.