2017_IGRT course book

Comparison of systems

Right Left (%)

Superior Inferior (%)

Anterior Posterior (%)

Proportion of displacements <3mm - KVI Proportion of displacements <3mm - MVI Proportion of displacements <5mm - KVI Proportion of displacements <5mm - MVI

62

56

45

76

66

68

88

79

74

90

84

84

3 mm action level - 27% more shifts on KVI than on EPI; (p= 0.0001) 3 mm action level - 27% more shifts on KVI than on EPI; (p= 0.0001)

Gill, 2012 BJR