Breast MRIs can detect tumors that mammograms may miss, but they also lead to false positive results.
Usually, breast MRIs are more expensive than mammograms and the cost isn’t always covered by health insurance.
A newer screening tool called fast breast MRI may help bridge the gaps.
Illustration by Cindy Chung for Verywell Health
The MRI can often detect breast cancer cells that have spread to lymph nodes under the armpit.
Those with certain risk factors may be advised to begin earlier.
Some people may be concerned about radiation exposure during a mammogram.
By and large, a mammogram fulfills these aims and is relatively affordable.
A breast MRI with contrast dye can be expensive.
Those with dense breasts on a mammogram may also need a breast MRI.
Summary
A mammogram is the standard test for breast cancer screening.
For people at increased risk, breast MRI is increasingly used to help in the diagnosis.
The screening tests have different strengths and weaknesses.
Newer fast MRI tests also are available in some locations.
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