You searched for:
“contrast agent”
A contrast medium: A contrast agent is a liquid (usually iodine or gadolinium) that is injected into the body to make certain tissues show up clearly during diagnostic imaging (angiography, CT, myelogram, MRI).
This entry is located in the following unit:
Computerized Axial Tomography, CAT, or Computed Tomography, CT Terms +
(page 2)