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@RT_physics
Is adaptation clinically important?
•
Image-guided radiotherapy (IGRT) is
commonly utilised to aid patient
positioning
•
Most evidence relies on surrogate
outcomes
Aims
•
To assess whether the magnitude of
residual
bony setup errors
following IGRT relate to patient survival
•
Test effect directionality of the errors to get information about the
underlying cause
•
→
Can we relate a small change in dose with outcome?