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Contrast material, or contrast dye, is a substance used to make specific organs, blood vessels, or types of tissue (such as tumours) more visible on X-rays. Contrast material may also be used during a CT scan, an ultrasound, or an MRI scan.
Common contrast material substances include iodine, barium, and gadolinium.
Current as of: July 26, 2023
Author: Healthwise Staff
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