How does the imaging system's fill factor impact its performance?

The fill factor of an imaging system refers to the proportion of the detector area that is sensitive to incoming radiation compared to the total detector area. A higher fill factor means that a greater percentage of the detector is actively involved in capturing signal, which enhances the system's efficiency in converting the X-ray photons into usable signals. This leads to improved image quality because more of the incoming radiation contributes to the image formation, allowing for better detection of small details and structures within the breast tissue.

In the context of mammography, where detecting subtle abnormalities is crucial for early diagnosis of breast cancer, the efficiency of signal conversion directly impacts the clarity and resolution of the images produced. Therefore, a higher fill factor results in an improved ability to detect and visualize microcalcifications and other important features, ultimately supporting better diagnostic outcomes.

In contrast, while fill factor might indirectly influence the total radiation dose—since a more efficient detector could potentially allow for lower doses to achieve the same image quality—it is not primarily responsible for determining the radiation dose itself. Additionally, image contrast, which is separate from fill factor, can be influenced by many other factors such as the quality of the imaging system, the characteristics of the breast tissue, and the type of exposure used. Patient comfort, while