Fig. 2.

Example of generating a suboptimal dose from a clinical plan and then improving the plan quality. The clinical plan (upper left) is degraded with the prompt “Increase the mean dose to the esophagus by 800 cGy” (upper center), which is subsequently improved by the prompt “Decrease the mean dose to the esophagus by −800 cGy” (upper right) to be similar to the clinical plan. The DVH comparison (lower left) and dose difference maps show the overall extent of changes made and the return to clinic-like dose. The red arrow denotes the region of the esophagus.