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Invited Commentary
June 24, 2019

Digital Breast Tomosynthesis—Diffusion Into Practice Preceding Evidence

Author Affiliations
  • 1Center for Healthcare Policy and Research, University of California, Davis, Sacramento
  • 2Department of Family and Community Medicine, University of California, Davis, Sacramento
JAMA Intern Med. Published online June 24, 2019. doi:10.1001/jamainternmed.2019.1037

Digital breast tomosynthesis (DBT), a form of supplemental screening mammography, is not recommended for routine screening in any clinical practice guidelines. Nevertheless, a study by Richman et al1 in this issue of JAMA Internal Medicine shows that it is widely used in the United States. Based on analyses of national Blue Cross Blue Shield claims data on screening mammography, Richman et al1 found that DBT use during screening increased from about 13% in 2015 to more than 40% in 2017. The uptake of DBT grew significantly faster in regions with higher income and larger white populations.

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