DBT Bests Digital Mammography for cancer detection irrespective of breast density
Digital breast tomosynthesis (DBT) provides reconstructed, quasi-three-dimensional mammographic images of the breast, and has been proposed to improve cancer detection in screening through better visualisation of lesions that may be obscured by dense and/or overlapping breast tissue on conventional (two-dimensional) digital mammography (DM).
A recent study suggests that DBT has differential incremental cancer detection and recall by breast density than digital mammography (DM). The study findings were published in the British Journal of Cancer on 28 March 2022.
Multiple studies have compared DBT and DM in breast cancer screening, including six published systematic reviews. All of these reviews reported that detection measures favoured DBT (compared to DM) for breast cancer screening; however, none reported screening detection measures by high and low breast density. To address the knowledge gap Dr Tong Li and her team conducted a study to examine whether digital breast tomosynthesis detects differentially in high- or low-density screens.
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