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| Factors | Points assigned |
|---|---|
| Aneurysm-specific factors | |
|
| |
| Size | |
| >10 mm | +2 |
| ≤10 mm | 0 |
| Ruptured | +2 |
| Unruptured | 0 |
| Thrombus | +2 |
| No thrombus | 0 |
| Treatment-related factors | |
|
| |
| Coils only | 0 |
| Stent-assistance | -1 |
| Flow diversion | -2 |
| Initial treatment result | |
| Raymond Roy 1 | 0 |
| Raymond Roy 2 | +1 |
| Raymond Roy 3 | +2 |
