The greatest limiting factor concerning resolution for fluoroscopic systems is the:

The greatest limiting factor concerning resolution for fluoroscopic systems is the video monitor. The video monitor is responsible for displaying the final image that the operator views. Its resolution directly affects the clarity and detail of the image presented. If the monitor has a lower resolution, even a high-quality fluoroscopic system may not be able to display the full potential detail of the images captured. Thus, any limitations in the video monitor can reduce the overall quality of the fluoroscopic examination.

The other components, such as the output and input phosphors and the TV camera, contribute to the image formation and initial capturing process, but they can only work to their full potential if the monitor is capable of displaying high-resolution images. If the video monitor is insufficient, the benefits gained from the other components are diminished. Consequently, having a high-resolution video monitor is essential in achieving optimal image quality in fluoroscopic systems.