Fluoroscopy is a medical imaging technique that uses X-rays to produce real-time moving images of the internal structures of the body. There are several synonyms for this term, such as radiography, X-ray imaging, and X-ray fluoroscopy. Radiography refers to the process of producing an image of the internal structures of the body using X-rays. X-ray imaging is a general term for all types of X-ray procedures that are used to visualize different parts of the body. X-ray fluoroscopy, on the other hand, uses a continuous X-ray beam that produces real-time moving images of the internal structures of the body. All of these terms are commonly used in the medical field to refer to the use of X-rays for diagnostic imaging.