A 3D mammogram (breast tomosynthesis) is an imaging test that combines multiple breast X-rays to create a three-dimensional picture of the breast. It is used to look for breast cancer in people with no signs or symptoms. It can also be used to investigate When used for breast cancer screening, 3D mammogram machines create 3D images and standard 2D mammogram images. Studies show that combining 3D mammograms with standard mammograms reduces the need for additional imaging and slightly increases th