Breast MRI (magnetic resonance imaging) is a test that should not be used to distinguish between benign (noncancerous) and malignant (cancerous) areas, in lieu of a breast biopsy. Due to false positive results, performing this test may increase the number of breastbiopsies that need to be performed. Although MRI may detect tumors in dense breast tissue, the presence of dense breast tissue is not a reason to have a breast MRI scan. Breast MRI scanning cannot detect tiny specks of calcium (known as microcalcifications), which account for half of the cancers detected by mammography.
Talk to your doctor about whether you should have an MRI of the breasts.
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Are not able to lie on your back for 30 to 60 minutes
Have claustrophobia (fear of closed or narrow spaces)
How Long Is the Breast MRI Test?
Allow 1 1/2 hours for your breast MRI exam. In most cases, the procedure takes 45 to 60 minutes, during which time several dozen images are obtained.
What Happens Before a Breast MRI?
Before a breast MRI, personal items such as your watch, jewelry, and wallet -- including any credit cards with magnetic strips (they will be erased by the magnet) -- should be left at home or removed. Hearing aids should be removed before the test, because they can be damaged by the magnetic field. Secured lockers are typically available to store personal possessions.