radiopaque contrast medium

radiopaque contrast medium

a substance that stops the passage of x-rays and is used to outline the interior of hollow organs, such as heart chambers, blood vessels, respiratory passages, and the biliary tract in x-ray or fluoroscopic pictures. Also called radiographic contrast medium. Compare radiolucency.

Patient discussion about radiopaque contrast medium

Q. Has anyone had an allergic reaction to gadolinium dye, MRI contrast agents, I have had a severe reaction. I would like to know the long term effects of this dye. And if anyone else has had or heard of problems and reactions to it. Please answer me. Thank you

A. In 1969 I almost died from the IVP dye. I had no idea I was allergic and when I awoke I was in a "recovery room." The doctor told me to always tell any physicians/paramedics etc of my allergy status regarding the dye. I now have chronic back pain, have a history of cancer in the family and the doctor wants to do a scan (including dye) but when I emphasized that I was allergic he backed off. Now I am wondering if there is anything else that can be done to test the bone (scan) without the dye. Any answers? Thanks

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References in periodicals archive ?
Radetsky gave the "Stephen King Stranger Than Fiction Award" to the study "Nose Blowing Propels Nasal Fluid Into the Paranasal Sinuses," an analysis of CT scans chronicling the instillation of radiopaque contrast medium into the nasopharynx followed by vigorous nose blowing (Clin.
Tagitol, a radiopaque contrast medium, works by marking any stool remaining in the colon to distinguish it from surrounding tissue.