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Conclusions
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If the TPS does not allow for dose accumulation
Rescale the primary dose to EQD2 and assess tolerance dose for
OAR, use these tolerances as dose constraints in the optimization …
•
If the TPS allows for dose accumulation, but not for EQD2
recalculation
Rescale primary and re-irradiation to EQD2 and accumulate dose
•
If TPS allows for dose accumulation, EQD2, recovery, …
Use it ... but how?
re-irradiation 2017 - D. Verellen