Fluoroscopy is a form of diagnostic radiology that enables the radiologist, with the aid of a contrast agent, to visualize the organ or area of concern via the x-ray. This contrast agent allows the image to be viewed clearly on a television monitor or screen. The contrast agents may be introduced into the body through injection, swallowing, or an enema.

Fluoroscopy tests consist of a series of images taken by a radiologist, and maybe followed by a series of images taken by the technologist.