Because DQE affects the contrast of images, spatial resolution affects the ability of the image to resolve details. In the film, the DR of different types of flat panel detectors should be selected according to different inspection locations. For the examination of the chest, the focus is on observing and distinguishing the density of different tissues, so the requirements for density resolution are relatively high. In this case, it is preferable to use the DR of the amorphous silicon flat panel detector, so that the DQE is relatively high, and it is easy to obtain a higher contrast image, which is more conducive to diagnosis.
Therefore, it can be seen that different types of flat panel detectors have different DQE and spatial resolution due to different materials, structures and processes. DQE affects the ability to resolve differences in tissue density; spatial resolution affects the ability to resolve fine structures. There is currently no flat panel detector with DQE and high spatial resolution, so a balance needs to be made between the two.