Fluoroscopy
Fluoroscopy is a medical imaging test that uses X-rays to obtain still and moving images of structures and processes inside the body, often with use of a contrast agent. Since the procedure is done in real-time, the movement of different organs and structures can be visualized. This allows doctors to evaluate body functions, such as the gastrointestinal function or a joint motion.
Fluoroscopy is essentially a continuous X-ray that creates a moving image of your body. When X-rays are transmitted through the body, a fluorescent screen captures them and transmits the information to a computer which generates images. Sometimes it is used to illuminate details of the part of the body being examined and it is also used to watch certain body processes in real time, giving radiologists a wealth of information.
Some fluoroscopy procedures include, but are not limited to arthrography (injection of contrast into a joint space) and myelography (injection of contrast into the spine). GI procedures such as an Upper GI view the esophagus, stomach and proximal small bowel, whereas a Small Bowel Follow through exam images the small intestine to the proximal large intestine. The GI procedures involve swallowing of a liquid suspension called barium. You may be asked to not eat or drink prior to your procedure. This will vary depending on the exam you are getting. If you drink barium, you will be asked to drink plenty of liquid following the exam.