The images collected during a 3D mammogram are synthesized by a computer to form a 3D picture of your breast. The 3D mammogram images can be analyzed as a whole or examined in small fractions for greater detail. For breast cancer screening purposes, the machine also creates standard 2D mammogram images.
A doctor who specializes in interpreting imaging tests (radiologist) examines the images to look for abnormalities that may be breast cancer. If the radiologist sees anything unusual, he or she will use your standard mammogram and any older mammogram images that are available to determine whether additional testing is needed.
Additional tests for breast cancer may include an ultrasound, an MRI or, sometimes, a biopsy to remove suspicious cells for testing in a lab by doctors who specialize in analyzing body tissue (pathology testing).