Figure 3

Comparative dose-volume-histogram (DVH) for patient 1-4. DVH of patient number 1 (black), 2 (red), 3 (green) and 4 (blue) with dose-volume relation of planning target volume (PTV, continuous lines) and organs at risk brain (dashed lines) and optic system (incl. optic nerves and chiasm, dotted lines); each line represents one patient; axis of abscissae with dose (%), ordinate with volume (%).