Barium sulphate
The medical term for a diagnostic x-ray of the colon and rectum using a radiopaque contrast medium is a barium enema or lower GI series. This procedure helps to visualize the lower gastrointestinal tract and identify any abnormalities or conditions such as polyps, tumors, or inflammatory bowel disease.
radio paque contrast test to see kidney
The medical term you are looking for is lymphangiography. It involves using a contrast medium and radiographic imaging to visualize the lymphatic vessels.
A catheter is then placed into the affected ureter to instill the contrast medium. X-ray pictures are taken to visualize the ureter.
For an MRI or CT scan, it is usually given through an IV. For the gastrointestinal system, it is usually drunk.
Radiolucent contrast medium is given during imaging studies where x-rays are used to visualize structures that are not easily seen on a plain x-ray. It helps to outline specific structures or abnormalities within the body. Examples of imaging studies where radiolucent contrast medium may be used include CT scans, MRIs, and some types of angiography.
Barium is a radiopaque contrast medium used for imaging the digestive system, while iodinated contrast media are used for imaging blood vessels and organs. Barium is not iodinated and is not excreted by the kidneys, making it suitable for GI imaging. Iodinated contrast media are excreted by the kidneys and are used for imaging various parts of the body, including the brain, kidneys, and blood vessels.
A contrast medium
A contrast agent
Yes, barium is a contrast medium and is actually one of the most common of the contrast mediums used in enemas and other x-ray based tests. Iodine is another contrast medium that is quite common.
The medical term for this procedure is "percutaneous transhepatic cholangiography" (PTC). It involves using a needle to pass through the liver to inject contrast medium into the bile ducts to visualize their structure.
There are at least a couple of radiographic studies of the kidneys and ureters using a contrast medium. In an intravenous pyelogram, or IVP, contrast medium is injected into a vein prior to imaging. In a VCUG, contrast medium is injected into the bladder to create an image.