One of the hardest aspects of reporting in the USA is reading mammograms the opposite way to having the patient facing you. Of the centers I have visited in the USA, some view films the 'right' way around, and some (including UCSF) read back to front!
When reporting in UCSF however, a score is given for breast density followed by a score for each breast in turn, starting with the right, then the left, followed by an overall BIRADS score. The films have been read by the residents, before the 'attending' does a readout - essentially dictating the result. In San Francisco, there is a database started by Ed Sickles, which is what the residents use to enter the data, and a patient report is generated.
I wonder how long it will take to adjust to reporting films in mirror image configuration