3-D mammography, commonly known as digital breast tomosynthesis (DBT), is a type of digital mammography in which x-ray devices take photos of thin "slices" of the breast from various angles and computer software reconstructs the image. This procedure is comparable to how a computed tomography (CT) scanner generates images of internal body structures. 3-D mammography uses very low-dose x-rays, although the radiation dose is larger than regular mammography because it is usually done at the same time as standard two-dimensional (2-D) digital mammography. DBT can now be performed alone using newer tomosynthesis algorithms, potentially lowering the radiation exposure to that of normal mammography.
- Track 1-1 Computed Tomography (CT)
- Track 2-2 3-D Mammography
- Track 3-3 Two-D Mammography