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Grading of insular and basal ganglia arteriovenous malformations.
| Grade | Spetzler-Martin | Spetzler-Martin, Modified | Supplementary | |||
|---|---|---|---|---|---|---|
| I | 0 | 0% | 0 | 0% | 3 | 13% |
| II | 8 | 33% | 8 | 33% | 8 | 33% |
| III | 10 | 42% | 10 | 42% | ||
| III− | 5 | 21% | ||||
| III | 1 | 4% | ||||
| III+ | 4 | 17% | ||||
| IV | 6 | 25% | 6 | 25% | 3 | 13% |
| V | 0 | 0% | 0 | 0% | 0 | 0% |
|
| ||||||
| Total | 24 | 24 | 24 | |||
