Exposure times can be reduced to what fraction using video-disc recorders?

The correct answer indicates that exposure times can be reduced to 1/5000 of a second using video-disc recorders. This capability is significant in the context of fluoroscopy because it allows for incredibly short intervals of exposure, which can enhance image quality and reduce motion blur.

In procedures where rapid movements are common, being able to utilize such short exposure times helps in capturing clear images without compromising the patient's safety through prolonged radiation exposure. The ability to achieve exposure times this brief is particularly vital in dynamic imaging situations, such as when observing physiological movements in real-time.

Additionally, this reduction in exposure time improves the overall efficiency of the imaging process, allowing practitioners to obtain the necessary diagnostic information quickly and accurately. The advancement in technology with video-disc recorders has made such quick exposures feasible, thereby enhancing both the diagnostic capabilities and patient care.