Key clinical point: Abbreviated breast MRI was more effective at identifying invasive cancer in women with dense breasts, compared with digital breast tomosynthesis.

Major finding: The abbreviated breast MRI detected all 17 cases of invasive breast cancer identified at baseline, while digital breast tomosynthesis detected 7 cases.

Study details: The data come from a cross-sectional, longitudinal study of 1,444 women aged 40-75 years who had dense breasts.

Disclosures: The study was supported in part by the National Cancer Institute of the National Institutes of Health, and by Bracco Diagnostics through funding to the ECOG-ACRIN Cancer Research Group. Dr. Comstock disclosed financial relationships with Bracco Diagnostics and Bayer, and three coauthors disclosed financial relationships with other imaging companies. The remaining coauthors had no relevant disclosures.