Concept information
Preferred term
contrast agent
Definition(s)
- A contrast agent (or contrast medium) is a substance used to increase the contrast of structures or fluids within the body in medical imaging. Contrast agents absorb or alter external electromagnetism or ultrasound, which is different from radiopharmaceuticals, which emit radiation themselves. In x-rays, contrast agents enhance the radiodensity in a target tissue or structure.
Broader concept(s)
Synonym(s)
- contrast medium
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/INS-TR3JFQM5-4
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