Film-based mammography has been the standard in breast cancer screening for more than 30 years. One of the challenges with this technology is its limited sensitivity for the detection of breast cancer in women with dense breasts. Direct digital radiography for mammography produces higher resolution images that can be manipulated or enlarged by the radiologist for improving diagnostic accuracy, even with dense tissue. Direct digital radiography also has much faster image acquisition rates, enabling higher patient throughput.
Central to a digital mammography system is the detector plate. Analogic’s amorphous Selenium based detector technology allows for the direct conversion of X-ray energy into digital signals that can be processed into high-quality images within seconds. Unlike indirect technology, where the X-ray energy needs to be converted into light before being digitized, Selenium’s direct conversion produces much sharper images.
Advantages of Selenium direct digital detector technology include:
- Fast image acquisition
- Superior image quality
- Tomosynthesis capability
Tomosynthesis produces 3-D images using ultra-fast 2-D Selenium direct conversion detector plates. In tomosynthesis, multiple scans are taken across the breast from one side to the other at different angles. The scans are reconstructed to form a 3-D image for improved reading accuracy and reduced false positives. Tomosynthesis enables a more accurate examination of dense tissue.
For more information on Selenium detector technology, please click here.