Physicians' opinions and use of controversial technologies. The case of mammographic screening in Norway

In a survey of 196 Norwegian radiologists and 37 breast imaging centers, physicians' preferences were found to be likely to influence the use of mammography. In their decision making, the radiologists appear to be influenced by income motives and by perceptions of the risk of misdiagnosing breast cancer. Despite opinions favorable to mammographic screening, most radiologists would prefer a CT scanner or a magnetic resonance imaging unit to a mammographic unit if the x-ray department were in a position to acquire capital equipment.