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CEM

Contrast Enhanced Mammogram

Contrast-enhanced mammography (CEM) is a special type of mammogram that uses a safe contrast dye to highlight areas of your breast with increased blood flow, helping detect abnormalities more clearly. It’s often used when standard mammograms need additional information. See below to learn how CEM works and when it may be recommended for you.

Contrast Enhanced Mammogram (CEM)

What is it?

Contrast-enhanced mammography, or CEM, is an advanced type of mammogram that uses a special dye to highlight areas in your breast that might need closer attention. It can help detect signs of breast cancer that might not show up on a regular mammogram, especially in women with dense breasts.

 

How Does it Work?

CEM combines a regular mammogram with an injection of a contrast dye. The dye travels through your bloodstream and highlights areas with abnormal blood flow, which could indicate cancer.

 

Best for:

CEM is especially helpful for:

  • Women with dense breast tissue, where regular mammograms may miss some changes.

  • Women who’ve had unclear results on a previous mammogram or other imaging test.

  • Women at higher risk for breast cancer who might need additional screening.

CEM may also be a good alternative to an MRI if you’re unable to have one or if it’s not available nearby.

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What to Expect:

  • Before the Exam: You’ll have an IV placed so the contrast dye can be injected. Let your doctor know if you’ve had reactions to contrast dyes before.

  • During the Exam: The dye will be injected through the IV just before the mammogram.You’ll have the same type of X-ray images taken as with a regular mammogram.

  • Duration: The entire procedure takes about 20-30 minutes.

  • After the Exam: You can return to your normal activities. Most people don’t have side effects from the dye, but let your doctor know if you feel unwell.

 

Important to Know:

  • CEM is not yet available everywhere, so check with your provider about nearby options.

  • Like other tests, it uses a small amount of radiation, but it’s within safe limits.

  • It’s an emerging technology, so your doctor may recommend it as part of a more tailored approach to your breast screening.

 

Insurance Coverage

Most insurance plans cover standard mammograms, but coverage for contrast-enhanced mammography (CEM) may vary. Check with your provider to confirm if this supplemental imaging is included in your plan.

Cat C mammogram vs CEM cancer.png

56 yr old woman with category C (heterogeneously dense breast). Left image is standard mammogram (cancer obscured by dense tissue), right image is contrast-enhanced mammogram (CEM), where vascular enhancement leads to cancer detection.

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