Fluoroscopy is a form of X-ray that enables the doctor to see internal organs and structures in motion. A contrast material (dye) may be introduced into the body through injection, swallowing or an enema. This dye allows the picture to be viewed clearly on a monitor or screen.

What contrast media is used for fluoroscopy?

Radiopaque contrast agents are often used in radiography and fluoroscopy to help delineate borders between tissues with similar radiodensity. Most contrast agents are iodine based. Ionic contrast agents, which are salts, are hyperosmolar to blood.

Is fluoroscopy the same as contrast?

Fluoroscopy is a type of imaging tool. It looks at moving body structures. It's much like an X-ray "movie." It is often done while a contrast dye moves through the part of the body being examined. A continuous X-ray beam is passed through the body part and sent to a video monitor.