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Definitions
•
EBRT and BT doses are summed
BT volumes received 100% EBRT prescribed dose
IMRT: inhomogeneity!
Dummy volume
•
Worst case assumption
2cm
3
is stable
Treatment delivery
In between fractions
•
EQD2
α/β = 10 Gy for tumor
α/β = 3 Gy for OAR