These studies are performed with a machine called a fluoroscope. This is a device that has a tilting table connected to an x-ray machine and a television screen. The fluoroscope produces a real-time x-ray image of you on the TV screen while you are on the table. The images on the screen can then be turned into permanent images, which are used for diagnosis.
Many fluoroscopic procedures use a liquid contrast (dye). This liquid comes in different forms, which make it much easier for x-rays to show internal parts of the body such as the stomach, esophagus, or colon. Images are taken on the fluoroscope as the contrast material passes through these parts of your body. A trained and experienced radiologist will interpret the study. Specific studies are listed below.