Substance that is injected into the body, introduced via catheter, or swallowed to allow radiographic images of internal structures that would normally be difficult to see on x-ray films. Also called contrast material.
The Rantings of the barely human.
Substance that is injected into the body, introduced via catheter, or swallowed to allow radiographic images of internal structures that would normally be difficult to see on x-ray films. Also called contrast material.