How are tomosynthesis images acquired?

A tomosynthesis exam is performed in the same manner as a conventional 2D exam and adds just a few seconds to the total exam time. Patients notice little, if any, difference from a conventional mammogram.

  • During the tomosynthesis part of the mammography exam, the X-ray arm sweeps in a slight arc over the breast, taking multiple low-dose images of the breast at different angles
  • These images are used to produce a 3D reconstruction of the breast

In Hologic's Selenia Dimensions breast tomosynthesis system, the tube head moves in a 15-degree arc over the breast, acquiring 15 low-dose images in approximately 4 seconds.

How are tomosynthesis images read?

Tomosynthesis images are displayed on high-resolution monitors in 1-mm thick slices.

Radiologists are able to scroll through the breast one layer at a time, free from the confusion of overlying structures above and below.

A new standard of care in mammography


Dr. Sonnenschein Martin


Dr. Sonnenschein Martin, Klinik Engeried, Bern, Switzerland, describes a case where a radial distortion, was seen only in the tomosynthesis images


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