One hundred and sixty two unprocessed anonymous
patient images were collected from a Hologic Selenia mammography
unit (Hologic, Inc., Bedford, MA). These images
were read as normal but there has been no follow up to con-
firm this. Each image used in the study was a single view of
one patient’s breast: the view (CC or MLO) and breast (left
or right) were randomly selected. Ideally, two views of both
breasts would be displayed as would be the case in the clinic.
However, only 2D simulated calcification cluster images
were available and these could not be reoriented for insertion
into both views.