fluoroscope

n. instrument which uses X rays or other radiation to examine the inside of an opaque object

Fluoroscopy is an imaging technique commonly used by physicians to obtain real-time images of the internal structures of a patient through the use of a fluoroscope. In its simplest form, a fluoroscope consists of an x-ray source and fluorescent screen between which a patient is placed. However, modern fluoroscopes couple the screen to an x-ray image intensifier and CCD video camera allowing the images to be played and recorded on a monitor. The use of x-rays, a form of ionizing radiation, requires that the potential risks from a procedure be carefully balanced with the benefits of the procedure to the patient. While physicians always try to use low dose rates during fluoroscopy procedures, the length of a typical procedure often results in a relatively high absorbed dose to the patient. Recent advances include the digitization of the images captured and flat-panel detector systems which reduce the radiation dose to the patient still further.
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Fluoroscope /flu·o·ro·scope/ an instrument for visual observation of the form and motion of the deep structures of the body by means of x-ray [more]Fluoroscope - Community and Resources

Noun
1. an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation
(synonym) roentgenoscope
(hypernym) X-ray machine

[FLOOR-o-skope]
An x-ray machine that makes it possible to see internal organs in motion.