<unk>  () is an imaging technique that uses X-rays to obtain real-time moving images of the interior of an object. In its primary application of medical imaging, a<unk>  () allows a physician to see the internal structure and function of a patient, so that the pumping action of the heart or the motion of swallowing, for example, can be watched. This is useful for both diagnosis and therapy and occurs in general radiology, interventional radiology, and image-guided surgery. In its simplest form, a<unk>  consists of an X-ray source and a<unk> scent screen, between which a patient is placed. However, since the 1950s most<unk> s have included X-ray image intensifiers and cameras as well, to improve the image's visibility and make it available on a remote display screen. For many decades,<unk>  tended to produce live pictures that were not recorded, but since the 1960s, as technology improved, recording and playback became the norm.<unk>  is similar to radiography and X-ray computed tomography (X-ray CT) in that it generates images using X-rays. The original difference was that radiography fixed still images on film whereas<unk>  provided live moving pictures that were not stored. However, today radiography, CT, and<unk>  are all digital imaging modes with image analysis software and data storage and retrieval.
Fluoroscopy
Frozen pelvis
Radiography
Scintigraphy
Palpation
Exploratory surgery
Contrast CT
Volume CT