Fig. 4From: Feasibility of automated proton therapy plan adaptation for head and neck tumors using cone beam CT imagesBoxplots of target DVH index (D 2) differences. The original (rpCT) and adapted plans (rpCTadapt) on the rpCT are compared to the original plan on the pCT (left panel) and to each other (right panel, including results of the paired Wilcoxon signed-rank test) for the 9 patients investigated in this study. All dose values refer to the total dose of the SIB treatment phaseBack to article page