Contrast material, or contrast dye, is a substance used to make specific organs, blood vessels, or types of tissue (such as tumors) 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.
| By | Healthwise Staff |
| Primary Medical Reviewer | Adam Husney, MD - Family Medicine |
| Specialist Medical Reviewer | Howard Schaff, MD - Diagnostic Radiology |
| Last Revised | June 12, 2009 |
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