Radiography: The use of X-rays to view a non-uniformly composed material such as the human body.
Computed Tomography (CT): A medical imaging technique that uses computer-processed combinations of multiple X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object.
Fluoroscopy: A type of medical imaging that shows a continuous X-ray image on a monitor, much like an X-ray movie.