Figure 3

Minimum (broken line), mean (solid line), maximum (dotted line) cumulative lung dose volume histograms for hypofractionated breast radiotherapy. Filled circles indicate dose volume constraints used for planning, equivalent to V20 Gy<12.5%, V13<14.5% and V10<16% respectively at 2 Gy/fr regime considering an α/β value for the lung equal to 3 Gy.