Dose Course 2018_Flipping book

Probabilistic treatment planning

PTV-based planning

CTV-based planning

One single CTV is delineated

• Multiple CTVs are delineated by sampling known variations • Robust treatment planning to account for all CTV instances • Treatment planning is based

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A margin is added by the planner to form PTV Treatment planning is based on PTV to ensure a certain dose coverage probability for the CTV

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directly on dose coverage histograms for the CTV