Adaptive Radiation Therapy for Head and Neck Cancer—Can an Old Goal Evolve into a New Standard?
Figure 6
A workflow diagram for in-room CT or CBCT-guided adaptive radiotherapy. The first level of treatment modification is a simple couch shift to correct for daily setup errors (CT-guided IGRT). Nonrigid changes in tumor volumes and normal organs can then be corrected via an online or offline adaptive replanning process (dotted lines).
