Table 1  Results for the 3 investigators: number of correct suspicious diagnoses as confirmed by histological examination of the specimens (n = 5) according to the imaging modality.

Imaging modality	Ductal high-frequency ultrasound (12 – 15 MHz)	Contrast-enhanced galactography with tomosynthesis (3D) together with synthetic digital 2D full-field mammograms generated with this method
Investigator 1 (1 year professional experience)	3	4
Investigator 2 (5 yearsʼ professional experience)	3	5
Investigator 3 (15 yearsʼ professional experience)	4	5