Research Masterclass in Radiotherapy Physics 2017
Results PTV coverage, V 100%
robot
VMAT
%Diff
p-value
PTV
2.0
0.01
95.2
93.3
V100% (%)
Much better tumor coverage with robot
PTV V100%
0.960
robot: 20/20 V 100%
≥95%
0.940
VMAT:
0.920
18/20 V 100% 11/20 V 100%
<95%
VMAT
< 93% clinically unacceptable
0.900
0.880
0.880 0.900 0.920 0.940 0.960
robot
Results Minimum PTV dose and conformity index
robot 1.08 36.1
VMAT
%Diff
p-value <0.001 <0.001
PTV
5.6 7.2
1.15 33.8
CI
D98% (Gy)
PTV CI PTV D98% Higher minimum tumor dose and better CI with robot
1.20
36.5
35.5
1.15
VMAT
VMAT
34.5
33.5
1.10
32.5
31.5
1.05
31.5 32.5 33.5 34.5 35.5 36.5
1.05
1.10
1.15
1.20
robot
robot
14
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