AVM grading for radiosurgery
AVM score = 0.1 * volume + 0.02 * age + 0.5 * location
Chance (in %) of excellent outcome (with 95% CI)
Chance (in %) of modified Rankin Scale decline (with 95% CI)
Pollock BE, Flickinger JC. Modification of the radiosurgery-based arteriovenous malformation grading system. Neurosurgery 2008; 63:239-43.