Advanced TP

Strategies to Mitigate Uncertainty

 Frequent Imaging  Multiple modalities  Measurement

 Consensus documents  Contouring  Planning protocols  Treatment procedures  Immobilization  Vac-loc, Masks, ABC  Patient Education  Cooperation  Diet  Understand the nature of the uncertainty

 On-line correction  Off-line correction  Gated Therapy, Tracking

 Plan for uncertainty:

 Appropriate use of margins  “ 4D ” optimization