Figure 3From: Intensity-modulated stereotactic radiosurgery for arteriovenous malformations: guidance for treatment planningConformity Index (PTV Only IMRT). Distribution of patient improvements regarding PTV conformity when comparing PTV Only IMRT to 3DCRT. Patient stratification into groups, depending on the benefit received from IMRT, is readily observed when plotting Vol./SA vs. PTV Diameter while alternate plots do not clearly indicate a stratified subset of patients with improved treatment parameters.Back to article page