Onega T, et al. - Researchers investigated the link between preoperative magnetic resonance imaging (MRI) and all-cause mortality in a cohort of women diagnosed with non-metastatic breast cancer (stage I–III) from February 2005 to June 2010 in five registries of the breast cancer surveillance consortium (BCSC). BCSC clinical and registry data were linked to Medicare claims and enrollment data. A Cox proportional hazards model was used to test the association. Supporting the previous findings, no improvement in surgical outcomes was reported in association with the use of preoperative MRI; no breast cancer-specific or all-cause mortality benefit was found.