Both the American Cancer Society1 and the National Comprehensive Cancer Network2 have published guidelines on the recommended use of breast magnetic resonance imaging (MRI). In both sets of guidelines, lifetime breast cancer risk greater than 20% has been established as an acceptable threshold for annual MRI screening when used together with annual mammography screening. Routine breast MRI screening is not recommended for a new cancer diagnosis or for cancer surveillance.
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Hwang ES, Bedrosian I. Patterns of Breast Magnetic Resonance Imaging Use: An Opportunity for Data-Driven Resource Allocation. JAMA Intern Med. 2014;174(1):122–124. doi:10.1001/jamainternmed.2013.10502
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