Skip to content

3D mammogram (digital breast tomosynthesis, or DBT)

Top of the page

3D mammogram (digital breast tomosynthesis, or DBT)

A mammogram is an X-ray of the breast. It can be done to screen for breast cancer and to check lumps in the breast. It can show tumors or abnormal areas that are too small for you or your doctor to feel.

There are different types of mammograms. A 3D mammogram uses X-rays from many angles to make a 3D image of the breast. It is also called digital breast tomosynthesis (say "toh-moh-SIN-thuh-suss"), or DBT. As a newer test, it may not be covered by insurance. Depending on how it is done, a 3D mammogram may use more radiation than a digital mammogram (DM).

Current as of: July 31, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

To learn more about Ignite Healthwise, LLC, visit webmdignite.com.

© 2024 Ignite Healthwise, LLC. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Ignite Healthwise, LLC.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.