Fig. 2From: Reliability of the gamma index analysis as a verification method of volumetric modulated arc therapy plansLocal gamma passing rates of the VMAT plans. Local gamma passing rates with various gamma criteria calculated from the measurements with the MapCHECK2 dosimeter are shown for Trilogy (a) and TrueBeam STx (c). Those with the ArcCHECK dosimeter using Trilogy (b) and TrueBeam STx (d) are also shown. For the local gamma passing rates with Trilogy, H&N plans, prostate primary plans (PPs), prostate boost plans (BPs), liver plans, and spine plans were analyzed, while the lung SABR, spine SABR, liver SABR, brain, and H&N plans were analyzed with TrueBeam STxBack to article page