954 / 1109
Replanning H&N IMRT patients
•
Causes of anatomy variations:
Tumor shrinkage
Weight loss (mucositis, reduced caloric intake)
Radiation induced anatomical changes (parotid glands)
•
Significant variations for dose to OAR (generally increased)
•
Variations of target coverage
Adaptive RT
Castadot, P., Lee, J. a., Geets, X. & Grégoire, V. Adaptive Radiotherapy of
Head and Neck Cancer. Semin. Radiat. Oncol. 20, 84–93 (2010).