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Table 2 Average values of global gamma passing rates of intensity modulated radiation therapy plans

From: Assessment of the modulation degrees of intensity-modulated radiation therapy plans

  3%/3 mm 2%/2 mm 2%/1 mm 1%/2 mm
MC AC p MC AC p MC AC p MC AC p
TrueBeam
 Lung SABR (n = 2) 98.5 ± 2.3 99.4 ± 0.6 < 0.001 93.8 ± 4.0 97.7 ± 1.7 < 0.001 85.3 ± 7.1 91.1 ± 3.6 < 0.001 75.2 ± 11.7 95.9 ± 2.7 < 0.001
 Spine SABR (n = 20) 98.4 ± 2.7 99.3 ± 0.9 < 0.001 95.8 ± 4.1 97.9 ± 1.5 < 0.001 91.0 ± 7.1 87.6 ± 4.3 0.047 91.1 ± 4.3 95.6 ± 2.6 < 0.001
 Liver SABR (n = 20) 99.2 ± 0.9 99.4 ± 1.2 < 0.001 96.7 ± 2.4 97.9 ± 3.1 < 0.001 92.7 ± 4.0 88.8 ± 7.3 0.013 91.1 ± 5.3 95.8 ± 4.7 < 0.001
 Brain (n = 20) 98.8 ± 1.6 99.3 ± 2.4 0.002 96.4 ± 3.3 98.5 ± 4.2 0.002 91.6 ± 4.7 92.1 ± 7.3 0.761 89.8 ± 7.1 97.2 ± 4.9 < 0.001
 Head and neck (n = 20) 96.2 ± 3.4 97.5 ± 3.6 0.072 84.8 ± 8.3 89.1 ± 10.3 0.107 74.5 ± 10.8 80.5 ± 13.9 0.996 66.3 ± 9.9 71.6 ± 13.0 0.001
Trilogy
 Head and neck (n = 40) 99.4 ± 0.6 99.8 ± 0.7 0.088 96.3 ± 2.4 98.5 ± 2.1 < 0.001 90.1 ± 3.9 94.4 ± 3.7 0.003 87.8 ± 5.3 94.8 ± 3.9 < 0.001
 Prostate primary (n = 21) 98.2 ± 0.8 99.5 ± 0.4 0.162 93.9 ± 1.4 97.1 ± 1.0 0.042 84.8 ± 3.0 86.1 ± 2.7 0.077 85.4 ± 1.7 93.4 ± 1.8 < 0.001
 Prostate boost (n = 21) 97.3 ± 1.5 99.4 ± 0.5 0.624 89.4 ± 2.6 96.2 ± 1.9 0.187 78.9 ± 5.0 83.6 ± 4.9 0.043 73.1 ± 4.9 92.5 ± 2.9 0.005
 Liver (n = 11) 99.2 ± 0.8 99.8 ± 0.2 0.418 97.3 ± 2.6 98.2 ± 1.4 0.083 93.9 ± 3.9 92.3 ± 4.2 0.814 90.4 ± 4.1 94.5 ± 2.9 < 0.001
 Spine (n = 9) 99.2 ± 0.9 99.7 ± 0.4 0.246 96.4 ± 3.4 97.3 ± 1.6 0.152 91.5 ± 6.6 89.3 ± 6.8 0.135 91.0 ± 5.5 92.5 ± 2.5 0.153
  1. Note: MC MapCHECK2™ detector array, AC ArcCHECK™ detector array, SABR Stereotactic ablative radiotherapy, Prostate primary Prostate primary plan, Prostate boost Prostate boost plan