Table 3 IMRT stratification of Spetzler-Martin grading scheme
AVM grade | Size | Eloquence | Venous drainage | IMRT recommendation |
|---|---|---|---|---|
1 | 1 | 0 | 0 | PTV only |
2 | 1 | 1 | 0 | PTV only |
1 | 0 | 1 | PTV only | |
2 | 0 | 0 | OAR low | |
3 | 1 | 1 | 1 | PTV only |
2 | 1 | 0 | PTV only | |
2 | 0 | 1 | OAR low | |
3 | 0 | 0 | OAR low | |
4 | 2 | 1 | 1 | PTV only |
3 | 1 | 0 | OAR low | |
3 | 0 | 1 | OAR low | |
5 | 3 | 1 | 1 | OAR low |