A breast MRI is a specialized imaging test that is sometimes needed to take a more extensive look at the breast tissue. It takes about 45-mins to 1 hour and requires patients to be in an enclosed space. MRI uses no radiation but oftentimes requires a special contrast called gadolinium.

The American College of Radiology recommends supplemental screening with MRI in the setting of dense breast and a personal history of breast cancer. It is generally indicated for high-risk patients (i.e high risks of developing breast cancer or patients who have had breast cancer), patients with certain types of cancers or a new cancer diagnosis with dense breast to ensure there is not more than one breast lesion.  A breast MRI is also indicated to look at breast implant integrity if there is concern for rupture.

There can be a 10-20% false positive rate from MRI exams, and additional tests and/or biopsies may be indicated depending on the results. Recent studies have noted concerns about gadolinium contrast depositing in the brain and kidneys, although our facility at the Dorothy Manguirian Women’s Health Center uses the macrocyclic version of gadolinium which at this point does not appear to be associated with organ deposition.

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