Magnetic resonance imaging (MRI) of the breast — or breast MRI — is a test used to detect breast cancer and other abnormalities in the breast.
A breast MRI captures multiple images of your breast. Breast MRI images are combined, using a computer, to generate detailed pictures.
A breast MRI usually is performed after you have a biopsy that's positive for cancer and your doctor needs more information about the extent of the disease. In certain situations, such as for women with a high risk of breast cancer, have a very strong family history of breast cancer or carry a hereditary breast cancer gene mutation, a breast MRI may be used with mammograms as a screening tool for detecting breast cancer.