In a direct capture digital radiography (DR) system, what is the impact of a decreased detector element (DEL) size?

A decreased detector element (DEL) size in a direct capture digital radiography system leads to increased spatial resolution. This is because smaller DELs allow for a finer grid of detectors that can capture more detail in the image. With more detector elements available to sample the incoming radiation, the system can more accurately represent the structures within the patient, leading to sharper and more defined images. This enhanced spatial resolution is particularly beneficial in diagnosing conditions where small anatomical details are crucial for accurate interpretation.

On the contrary, larger DEL sizes would limit the amount of detail captured, which would negatively affect image quality. Smaller DELs improve the system’s ability to differentiate between closely spaced structures, which is essential in many clinical scenarios, such as in orthopedics or when assessing tumors.