Fig. 1From: Radiation treatment planning with embedded dose escalationa) Axial views of the virtual CT, planning structures, and isodose lines for each planning approach for the 5 cm tumor diameter. b) Axial views of the patient plans optimized using each planning approach while meeting all OAR constraints and an R50% < 3.4. c) Axial views of the patient plans optimized using each approach while meeting all OAR constraints and relaxing the dose objectives limiting the R50%Back to article page