Rigid Dose Transformation as a Surrogate for Dose Recalculation When Assessing the Need for Adaptive Re-Planning in Head and Neck Cancer Patients

is currently used in our clinic, with approximately 15 minutes needed for each case for automatic contour propagation and clinician verification. Conclusions: Retrospective visual evaluation and volume analysis by DICE indices suggests contour propagation with minor contour modification increases the efficiency in the replanning process. Author Disclosure: A.D. Kumarasiri: None. J. Kim: None. C. Liu: None. D.G. Pradhan: None. R. Yechieli: None. M. Shah: None. I.J. Chetty: E. Research Grant; Varian Medical Systems, Palo Alto, CA, Philips Healthcare, Best, Netherlands. F. Siddiqui: None.