Digital Breast Tomosynthesis (3D mammography)

Digital breast tomosynthesis (DBT/Tomo) is an approved adjunct to mammography; Uses a moving x-ray source/digital detector resulting in 3D data; Thin slice reconstruction improves visualization of the outline of a lesion by eliminating overlap from surrounding structures; Disadvantages include double the radiation dose and motion artifact

When used for screening, DBT decreases the recall rates (may be especially meaningful in women under age 50 or women with dense breasts); According to the 2016 ACR Appropriateness Criteria for breast cancer screening, annual screening combination mammography + screening DBT is currently recommended for average risk women regardless of breast density

(Venkataraman 2015, Friedewald 2014)

movie of tomo

magnifiaction of tomo finding