Mammography in Norway. Technical performance

The Norwegian Radiation Protection Authority and the Norwegian Radium Hospital have in collaboration carried out a survey of the mammography centers in use between December 1993 and March 1994 (45 units at 41 centers). The scope of the project was to gain experience with, and to evaluate different methods for assessment of image quality. The scope was also to get an overview of the mammography practice in Norway. There were large variations in the utilisation of the equipment, which influence the image quality and probably the diagnostic accuracy. Substantial differences in equipment performance were also found. The report presents the results of the technical measurement from the survey. 18 refs., 20 figs., 4 tabs