Tomosynthesis is a medical imaging technique that uses low-dose X-rays to create three-dimensional images of the breast. It is often used in breast cancer screening and diagnosis, as it provides more detailed images than traditional mammography. Tomosynthesis helps to reduce overlapping tissue that can sometimes make it difficult to detect abnormalities in the breast. It can also help to differentiate between normal breast tissue and potential tumors. Tomosynthesis is considered to be a more advanced and effective method of breast imaging compared to traditional mammography.