Last week was the 9th International Workshop on Digital Mammography in Tuscon, Arizona.
Most of the papers given are already online - at
SpringerLinkHot topics were Tomosynthesis, Dual Energy mammography - some using subtraction techniques, and others using contrast enhancement.
John Boone, a physicist from UC Davis in Sacramento also was describing his experience with Breast CT using a cone beam - good for resolution, equivalent radiation dose, but not so good for calcifications.