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Conclusion
Combination of parametrial boost and BT:
High EBRT and BT gradients in the same region
Difficult to predict target dose
Difficult to predict OAR dose
Large normal tissue volume irradiated to a significant dose
Combination of interstitial BT and intracavitary BT:
Higher target dose (compared with para-boost)
Reduced OAR dose (compared with para-boost)
Better conformality with HR-CTV and IR-CTV
Simultaneous integrated boost
Limits overall treatment time