What are the drawbacks to digital breast tomosynthesis (DBT)?

Digital breast tomosynthesis (DBT) has a few minor drawbacks:
  • The approved indications for DBT state that it must be used as an adjunct to standard digital mammography. This means that the radiation dose for women having DBT is slightly higher than it would be with standard digital mammography. Even with the addition of DBT, however, the dose remains lower than the maximum allowed with older, analog mammography.
  • Because DBT is a new platform, techniques for best use are still evolving.
  • To date, no substantial trials of 3-D tomosynthesis have been performed in the U.S., though a large trial is currently being planned. A large-scale population-based study is ongoing in Europe. These trials are very hard to do and must involve many thousands of women to show a significant benefit in cancer detection of tomosynthesis over routine mammography.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.