Magnetic Resonance Imaging (MRI) is an accurate technique for detecting and classifying tumours in breast tissue. However, it sometimes causes ''false alarms'', thus requiring further investigation (biopsy) and in some cases even resulting in so-called overtreatment, that is to say unnecessary surgery. For the first time, a research team from MedUni Vienna has now confirmed a threshold value for a non-invasive imaging biomarker. This can be incorporated into short standard MRI scans and could reduce the biopsy rate following MRI scans by 30%.