Jisho

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Noun
1. contrast medium; radiopaque substanceMedicine
Wikipedia definition
2. Radiocontrast agentRadiocontrast agents are a type of medical contrast medium used to improve the visibility of internal bodily structures in an X-ray based imaging techniques such as computed tomography (CT) or radiography (commonly known as X-ray imaging). Radiocontrast agents are typically iodine or barium compounds. Despite being part of radiology, magnetic resonance imaging (MRI) functions through different principles and thus utilizes different contrast agents.
Read “Radiocontrast agent” on English Wikipedia
Read “造影剤” on Japanese Wikipedia
Read “Radiocontrast agent” on DBpedia

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