Fig. 2.

a ADC map of a 49-year-old patient with a luminal A cancer in the right breast. b ADC map of a 67-year-old patient with a luminal B cancer in the right breast. In our patient collective, radiomic signatures derived from DWI differentiated luminal A from luminal B cancers with an accuracy of 91.5 % when tumor segmentation was performed on the ADC map (89.5 % when segmented on high b-value DWI and copied to the ADC map). (DWI, diffusion-weighted imaging; ADC, apparent diffusion coefficient).