definition
Impenetrable to X-rays and other radiation
Some disorders cannot be diagnosed without the use of radiopaque dyes.
Most foreign bodies swallowed by small children are radiopaque, which means that they show up on a standard x ray.
A radiopaque object will look white or light when the x-ray film is developed.
Most objects that children swallow can be detected by an x-ray study because they are radiopaque.
Radiopaque dyes, radiocontrast media-Injected substances that are used to outline tissues and organs in some x-ray and other radiation procedures.
The exact type and location of the fistula can be determined using a radiopaque catheter, which allows pictures to be taken of the esophagus.