Определение contrast medium в Английский Язык Английский Язык словарь
Any substance, such as barium sulfate, used in radiography to increase the visibility of internal structures
a substance that is opaque to x-rays; when administered it allows a radiologist to examine the organ or tissue it fills
{i} (Medicine) radiopaque substance injected into a part of the body in order to sharpen the visualisation of the structure during radiography
A substance, such as barium or air, used in radiography to increase the contrast of an image. A positive contrast medium absorbs x-rays more strongly than the tissue or structure being examined; a negative contrast medium, less strongly. Substance comparatively opaque to X rays, which appears lighter on X-ray film and allows a body structure that does not normally contrast with its background to be seen clearly on the film. Common contrast media include barium sulfate and iodized organic compounds. They are given by the route that introduces them into the structure to be examined swallowed or as an enema for the digestive tract, inhaled for the respiratory tract, or injected for blood vessels and for organs and tissues they supply. Serious reactions to contrast media are not infrequent. See also diagnostic imaging