Combinations of Digital Breast Tomosynthesis and Full-field Digital Mammography for Different Density Types of Breasts.

Background: The combination of FFDM and DBT can significantly improve the diagnostic efficiency of breast cancer, but with the increase of breast radiation absorbed dose.

Objectives: To compare and analyze the radiation dose and diagnostic performance of different mammography positions combinations of digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) for different density types of breasts.

Methods: This retrospective study involved 1,195 patients who underwent simultaneous breast DBT and FFDM.