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Table 5 - Correlations between the gamma passing rates and the gantry angle errors

From: Reliability of the gamma index analysis as a verification method of volumetric modulated arc therapy plans

Gamma criteria MapCHECK2 measurements ArcCHECK measurements
Global gamma passing rates Local gamma passing rates Global gamma passing rates Local gamma passing rates
r p r p r p r p
TrueBeam STx (SABR + non-SABR)
 2%/2 mm − 0.258 0.010
 1%/2 mm − 0.242 0.015
TrueBeam STx (SABR)
 2%/2 mm − 0.398 0.002
 1%/2 mm − 0.405 0.001
 1%/1 mm − 0.257 0.048
TrueBeam STx (non-SABR)
 2%/1 mm 0.347 0.028
 1%/1 mm 0.333 0.035
  1. Note: Only r values with p ≤ 0.05 are shown