Fluoroscopy

Fluoroscopy is a diagnostic and interventional radiological method that uses a dynamic RTG image display (e.g. to display esophageal peristalsis, stomach, intestines, observation of breathing movements or heartbeat). To reduce the radiation load, a pulse mode is used, when the image is created, for example, 4 times' per second (not continuously) and low values of mAs' with automatic control of the kerm příkonucontrol.

Examination Types
Monocontrast - Using only positive contrast material (this method is mainly used in children).

Double-contrast - Use of positive and negative contrast material.

For women of childbearing age, the effort is to follow the so-called 10-day rule. The examination is performed during the first 10 days of the menstrual cycle, when higher doses of radiation are applied to the abdominal area.

Types of contrast agents
Negative - air (irrigography), methylcellulose (enteroclysis).

Positive – barium suspension, iodine contrast agents.

Fluoroscopy methods
The fluoroscopy methods include:
 * X-ray examination of the digestive tract: X-ray of the esophagus, videofluoroscopy, X-ray of the stomach, X-ray passage, enteroclysis, irigography, defecography, introduction of stents under RTG control.
 * Examination and intervention of the urinary tract: ureterocystography, introduction of pig-tail catheter.
 * Fistulography: injection of the mouth of the fistula or drain contrast agent.
 * Skiascopy of the diaphragm: diagnostics paresis diaphragm.
 * Skiascopy of the lungs: differentiating a nodule in the lung parenchyma from extraparenchymal lesions or summations.
 * Cholangiography: intraoperative, T-drain, PTC ( percutaneous transhepatic cholangiography), ERCP.

Links

 * Radiodiagnostika Portal

Resources

 * | Principle of skiagraphy, fluoroscopy, CT and angiography (Lucie Dohnalová, MD, Brno University Hospital)

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