The diaphragm is the muscle between the chest and the abdomen. It controls breathing. Fluoroscopy shows whether it moves properly. It can also show various parts of the digestive tract. Barium swallow and barium enema tests both use it.
Contrast dyes allow views of the gall bladder, bile ducts, and pancreas.
Another test inspects the enclosed space around the spinal column. Finally, it may be used to guide the passage of catheters or other tools through the body. Fluoroscopy usually takes place in an office or the radiology section of a hospital. The room may be darkened, so the examiner can see the screen clearly. For many tests, fluoroscopy may be only a brief part of the overall procedure.