contrast material

Definition / meaning of contrast material

A dye or other substance that helps show abnormal areas inside the body. It is given by injection into a vein, by enema, or by mouth. Contrast material may be used with x-rays, CT scans, MRI, or other imaging tests.

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Find More About 'contrast material'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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