Breast MRI is a painless, noninvasive procedure that examines the inside of the breast and provides detailed, three-dimensional images of the breast tissue. There is no flattening or compression of the breast during the MRI and there is no radiation exposure.

If breast cancer is present, a breast MRI will detect it 95 to 100% of the time.

Who should have a breast MRI?

Patients with a diagnostic problem:

Breast MRI is usually done as a follow up to a mammogram or breast ultrasound if your doctor sees something suspicious and wants more information.

The American Cancer Society recommends breast MRI for high risk patients including those with a family history. If you have very dense breast tissue or breast implants, your doctor might also recommend a breast MRI. 

Newly or previously diagnosed breast cancer patients:

Breast MRI is also used as a tool for women who have breast cancer. A breast MRI can detect additional very small tumors that might not have been visible on your mammogram or ultrasound which can help your doctor determine the best course of treatment. Doctors also recommend breast MRIs for women undergoing chemotherapy prior to surgery so they can see how well the current treatment is working.

How should I prepare for my breast MRI?

-iiIf you menstruate, schedule your breast MRI a week after the last day of your period.

-iiDo not wear any deodorant or jewelry on the day of the exam.

-iiBefore the exam, tell the technologist if you have any metal in your body such as a pacemaker, hearing implant or metal plate.

What happens during the exam?

Before your breast MRI, the technologist will insert an IV in your arm that will add a contrast agent to your blood. The contrast agent lights up any cancerous tissue in the breast and makes it easier to see other problems. You will lie on your stomach on an exam platform and enter the MRI machine feet first. During the 30 – 40 minute exam, several images of your breast will be taken.