The National Comprehensive Cancer Network (NCCN) currently recommends an annual breast MRI and an annual mammography for high-risk women (lifetime breast cancer risk at or above 20%).
Among women at high risk for breast cancer, MRI detected breast cancer at an earlier stage than mammograms. Women with BRCA1/2 and TP53 were NOT included in this study.
Link to full article: https://www.ncbi.nlm.nih.gov/pubmed/31221620