Breast MRI is a technique using a very strong magnet and radio waves to pick up signals from the breast tissue. We use state-of-the-art equipment including a dedicated bilateral breast surface coil. The patient lies face-down within the scanning field for approximately 25 minutes. The primary way that abnormal tissue stands out on MRI is because it gets more blood flow than the remaining tissue. We can detect blood flow by taking images before and after infusion of an intravenous substance (gadolinium) that is easily seen on MRI. Breast MRI is most useful in detecting breast cancer and evaluating the integrity of implants. Breast MRI is often employed in patients with a known breast cancer in whom there is a question about how extensive the disease is. Medical indications (reasons) for breast MRI are evolving, and are the subject of many studies around the country.