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contrast medium
(redirected from contrast material)

    Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.04 sec.

contrast medium

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.
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The mass contained multiple calcific foci peripherally and did not enhance significantly following the administration of intravenous contrast material.
An unusual cause of facial pain: malignant change in a calcified ... by Howlett, David C. / Ear, Nose and Throat Journal
If the contrast material remains in the patient long enough, the metal atoms may break free.
Buckymedicine: coming soon to a pharmacy near you? by Gorman, Jessica / Science News
The physician injects a clear contrast material at the origin of these vessels, and the fluoroscopic continuous X-ray device shows this liquid as white.
What You Need to Know About Heart Attacks by Barre, Randall / Vibrant Life
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