Fluoroscopy Fluoroscopy is an enhanced x

Fluoroscopy

Fluoroscopy is an enhanced x-ray that produces images on a television-like monitor. It is especially helpful in diagnosing problems of the digestive tract, kidneys, and gallbladder. A fluoroscopy exam usually lasts 30-40 minutes. A contrast agent is sometimes needed to amplify the area of interest. You may be given instructions on diet before your exam.

This technique is used to obtain "live" X-ray images. A switch is used to control an X-Ray beam that is transmitted through the patient. The X-rays then strike a fluorescent plate that is coupled to an "image intensifier" that is (in turn) coupled to a television camera. The image can then be viewed on a "live" TV monitor. Fluoroscopy is often used to observe the digestive tract (Upper GI series - Barium Swallow, Lower GI series - Barium Enema or "BE").

The colon is clearly seen on the BE (above). The white areas are barium (contrast) and the black regions are air.

Flouroscopy is also used during many diagnostic and therapeutic radiologic procedures, to observe the action of instruments being used either to diagnose or to treat the patient.