1. A method for determining a threshold for display of regions of interest, the threshold used by a computer aided detection device for analysis of medical images and the method operating on a computer having a display for displaying the medical images, the method comprising: displaying a plurality of images on the display, each of the images having a different abnormality selected from a range of different abnormalities that may be observed in an anatomical image on the display, receiving, from a user interface, a selection of one of the images and an associated selected abnormality, and displaying, in response to said selected image and associated selected abnormality, an anatomical image in which abnormalities less severe than the selected abnormality are not annotated.