Breast Cancers Detected at Screening MR Imaging and Mammography in Patients at High Risk: Method of Detection Reflects Tumor Histopathologic Results

In a screening program combining annual MR imaging and mammography in women at high risk of cancer, invasive cancer was more likely to be detected at breast MR imaging, 28 of 43(65%) cancers detected at mammography were ductal carcinoma in situ, and the interval cancer rate was lower compared with that of the general population.