3D mammography, also known as digital breast tomosynthesis, is an advanced imaging technique designed to improve the early detection of breast cancer, when it is most treatable. Unlike traditional 2D mammography, it captures multiple images of the breast from different angles to create a layered, three-dimensional view. This allows radiologists to see breast tissue in greater detail, reducing the effect of overlapping tissue and making it easier to identify abnormalities that might otherwise remain hidden.