Wernli KJ, Callaway KA, Henderson LM, et al. - This study was conducted to evaluate national trends in cancer screening with breast magnetic resonance imaging among US women. Between 2006 and 2016, researchers utilized claims data from a large national insurer to assess rates of breast cancer screening with MRI in a US cohort of 10 million women 20 to 64 years of age. Joinpoint regression was applied to assess annual variations in trends. They included 37,447 screening breast MRI examinations in 25,617 women in the current study. Screening breast MRI rates increased from 2.9 to 12.1 examinations per 10,000 women from 2006 to 2016, but were still deemed low. From 2006 to 2016 MRI use in women with a BRCA mutation increased by 21% on average annually from 210.8 to 1562.0 per 10,000 women. Increases in breast MRI use infer that there have been improvements in concordance with breast imaging guidelines. Nevertheless, it was demonstrated that women with BRCA mutations are still underscreened, especially younger women, thereby distinguishing a clear gap with which to enhance access.