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Which dose should be used within NTCP models?
•
Dose extracted from DVH
➢
Maximum (D
vol
)
➢
D
volume
➢
Mean dose
•
Dose
in OAR is usually
heterogeneous
•
Dose/response
relation in OAR
changes with the organ
considered
•
Need to define a number that can summarize the different contribution of
dose in the OAR volume
Equivalent Uniform Dose
But…