Читать книгу A Comprehensive Guide to Radiographic Sciences and Technology - Euclid Seeram - Страница 37

Major components of a DM system currently utilize CR detectors and flat‐panel digital detectors including direct and indirect conversion detectors to image the breast. Image acquisition and processing is similar to that described above for FPDR. Additionally, associated applications of DM include DBT and DRT. While DBT is designed to examine only the breast, DRT images other body regions, such as the chest abdomen, extremities, for example. The basic concept of DBT and DRT is related to the principle underlying conventional tomography, in which the x‐ray tube moves through various angles (limited arc) while the detector is stationary, capturing several images during the sweep, as illustrated in Figure 2.8. These images are subsequently subjected to image reconstruction algorithms and digital image processing to enhance the visualization of image features.