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A barium swallow is an imaging test that uses X-rays to look at your upper gastrointestinal (GI) tract. Your upper GI tract includes the back of your mouth and throat (pharynx) and your esophagus.You may have just a barium swallow. Or this test may be done as part of an upper GI series. This series looks at your esophagus, stomach, and the first part of the small intestine (duodenum). X-rays use a small amount of external radiation to create images of your body, its organs, and other internal structures. X-rays are most often used to find bone or joint problems, or to check the heart and lungs. A barium swallow is 1 type of X-ray.
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The test uses barium. Barium is a substance that makes certain areas of the body show up more clearly on an X-ray. The radiologist will be able to see the lining, size, and shape of the colon. These details might not be seen on a standard X-ray. Barium is used only for imaging tests for the GI tract. After the barium is in your large intestine, the radiologist may fill the intestine with air. Air will look black on X-ray film. The barium will look white. This contrast makes smaller details show up. When barium and air are used together, the test is called a double contrast study.
An upper gastrointestinal (GI) series is an imaging test of your esophagus, stomach, and the first part of your small intestine (duodenum). The test is done with X-rays after you swallow a special drink. The drink contains a barium contrast. This makes it easier to see the images on the X-rays. A test of just the back of your mouth and throat (pharynx) and esophagus is called a swallow. It’s called a barium swallow if barium is used. It’s called a Gastrografin swallow if a different type of contrast dye (diatrizoic acid) is used. This contrast dye dissolves in water (water-soluble).
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An upper GI endoscopy or EGD (esophagogastroduodenoscopy) is a procedure to diagnose and treat problems in your upper GI (gastrointestinal) tract. The upper GI tract includes your food pipe (esophagus), stomach, and the first part of your small intestine (the duodenum). This procedure is done using a long, flexible tube called an endoscope. The tube has a tiny light and video camera on one end. The tube is put into your mouth and throat. Then it’s slowly pushed through your esophagus and stomach, and into your duodenum. Video images from the tube are seen on a screen.
Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure to diagnose and treat problems in the liver, gallbladder, bile ducts, and pancreas. It combines X-ray and an endoscope—a long, flexible, lighted tube. Your healthcare provider guides the scope through your mouth and throat, then down the esophagus, stomach, and the first part of the small intestine (duodenum). Your healthcare provider can view the inside of these organs and check for problems. Next, he or she will pass a tube through the scope and inject a dye. This highlights the organs on X-ray.
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A pancreas scan is a type of nuclear radiology test. This means that a tiny amount of radioactive material is used to help check the pancreas. The radioactive material is injected into a vein. A pancreas scan may also be used to treat certain pancreatic cancer tumors. Once the radioactive material reaches the area being checked, it sends out a type of radiation called gamma radiation. The gamma rays are detected by a special scanner. The scanner then makes an image of the tumor.
A liver scan is an imaging test to look at your liver and see how well it’s working. This test may also be called a liver-spleen scan because the healthcare provider often looks at the spleen at the same time. A liver scan is a type of nuclear imaging test. This means that a tiny amount of a radioactive matter is used during the scan. The radioactive matter (radioactive tracer) is absorbed by normal liver tissue. The rest of the radioactive tracer is absorbed by your spleen and bone marrow. The radioactive tracer sends out gamma rays. These are picked up by the scanner to make a picture of your liver.
