Tomosynthesis – 3D Mammography

Three-dimensional (3D) mammography, also known as Tomosynthesis, represents an advancement over traditional digital mammography, which has been the primary tool for breast cancer prevention in recent years. Traditional digital mammography involves taking two static images with compression of each breast and a stationary X-ray tube, and has significantly contributed to the early detection of breast cancer.

However, its diagnostic accuracy is limited by the phenomenon of tissue overlap, where a potential lesion may be obscured or, conversely, a benign area may appear suspicious.

In 3D mammography, the issue of tissue overlap is significantly reduced. During Tomosynthesis, the X-ray tube rotates in a 15° arc, taking 15 low-dose slices (with a total dose similar to traditional digital mammography). These slices are then reconstructed by a computer into 50-60 images of 1 mm thickness per image, depending on breast thickness.

This approach allows the radiologist to review the examination slice by slice, providing clearer differentiation of normal tissues and very small lesions that might not have been well-visualized with traditional digital mammography.

It is recommended to contact the diagnostic center you plan to visit for clarification on preparation, as it may vary based on the patient's history.