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Fluoroscopy
From Wikipedia, the free encyclopedia
Jump to: navigation, search Fluoroscopy | Intervention | A modern fluoroscope | ICD-10-PCS | B?1 | MeSH | D005471 |

A barium swallow exam taken via fluoroscopy.
Fluoroscopy is an imaging technique that uses X-rays to obtain real-time moving 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 recorded and played on a monitor.
The use of X-rays, a form of ionizing radiation, requires the potential risks from a procedure to be carefully balanced with the benefits of the procedure to the patient. While physicians always try to use low dose rates during fluoroscopic 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; modern advances allow further reduction of the radiation dose to the patient.
Contents
[hide] * 1 History * 2 Invention of commercial instruments * 2.1 Analog instrument * 2.2 Digital instrument * 3 Risks * 4 Equipment * 4.1 X-ray image intensifiers * 4.2 Flat-panel detectors * 4.3 Contrast agents * 5 Imaging concerns * 6 Common procedures using fluoroscopy * 6.1 Gastrointestinal fluoroscopy * 6.2 Cine * 7 See also * 8 References * 9 External links
History[edit]
The beginning of fluoroscopy can be traced back to 8 November 1895 when Wilhelm Röntgen, or in English script Roentgen, noticed a barium platinocyanide screen fluorescing as a result of being exposed to what he would later call x-rays (algebraic x

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