Breast MRI is a radiation-free, usually non-invasive way to produce high-quality pictures inside the body from multiple planes. MRI uses magnetic properties; when our bodies are exposed to radio waves within a strong electro-magnetic field our bodies emit radiofrequency signals. These signals are converted by a computer into three-dimensional tomographic images.

When an MRI is performed, the patient lies on a table within a large circular tunnel. The patient is expected to lie completely still during the procedure and may have a contrast agent injected during the procedure. Patients who have metallic clips, electronic implants, pacemakers or certain other types of foreign bodies may not be able to have an MRI. The patient is asked a series of questions by the MRI scheduler to ensure she is a candidate for an MRI.