Colormap representation of cumulative DVHs of all patients (column A: MCO-plans and B: Conventional IMRT plans) and DVH difference maps (column C, conventional IMRT minus MCO) for the PTVboost (row I), integral dose (i.e. External, row II), contra-lateral parotid gland (row III), and superior pharyngeal constrictor muscle (PCM, row IV). Each row in the colormaps indicates the relative volume (difference) against dose for a single patient. The vertical lines indicate the domain (*) at which the DVHs were significantly different. A comparison of DVHs for the conventional IMRT and MCO-plans resulted in a p-value (Wilcoxon signed-rank test) at each dose level (column D). The orange and blue line sections indicate a lower mean dose for the conventional IMRT or MCO-plans, respectively. The dotted line indicates the level of being statistically significant at p = 0.05. The mean dose per structure and per planning technique is plotted in column E. Additionally, the D98% and D2% of PTVboost and D98% of PTVprophylactic is shown. The mean dose of the contra-lateral and ipsi-lateral parotid glands are illustrated by circles and triangles, respectively. The dashed line indicates the unity line.