Which combination would produce an image with the highest spatial resolution?

To achieve the highest spatial resolution in imaging, it's essential to consider the parameters that impact detail clarity and the ability to distinguish small structures. The correct choice highlights the importance of having a small detector element (DEL) size combined with a small DEL pitch and a high fill factor.

A small DEL size allows for finer sampling of the image, which means that more detailed information can be captured. When the DEL size is small, it can detect smaller features in the image, thus enhancing spatial resolution. Additionally, a small DEL pitch ensures that the spacing between each DEL is minimized. This tight arrangement allows the system to capture more pixels over a given area, further contributing to the detail and clarity of the image.

A high fill factor indicates that a greater proportion of the detector is sensitive to incoming radiation, which improves the efficiency and quality of the resultant image. This means more of the detected signal contributes to the final image, enhancing its overall quality.

In summary, the combination of a small DEL size, small DEL pitch, and high fill factor is optimal for producing images with the highest spatial resolution, allowing for clearer and more detailed images suitable for diagnostic purposes.