Contrast agent

(redirected from Radiocontrast)
Also found in: Wikipedia.

con·trast me·di·um

any internally administered substance that has a different opacity from soft tissue on radiography or computed tomography; includes barium, used to opacify parts of the gastrointestinal tract; water-soluble iodinated compounds, used to opacify blood vessels or the genitourinary tract; may refer to air occurring naturally or introduced into the body; also, paramagnetic substances used in magnetic resonance imaging.

contrast agent

Contrast agent

Also called a contrast medium, this is usually a barium or iodine dye that is injected into the area under investigation. The dye makes the interior body parts more visible on an x-ray film.

Patient discussion about Contrast agent

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

More discussions about Contrast agent
References in periodicals archive ?
The relationship of radiocontrast, iodine, and seafood allergies: A medical myth exposed.
1) Alper et al reported a case of neutrophilic dermatosis that occurred as a result of exposure to a radiocontrast agent.
acute tubular necrosis, which is the commonest cause of renal failure in adults, can be caused by aminoglycosides, radiocontrast dyes and many other drugs.
About 30% of liver angiosarcoma cases are associated with environmental exposures to vinyl chloride, arsenic, and thorotrast, a radiocontrast dye used in the 1950s (1).
However, among those with an identified culprit drug, nearly half were antibiotics, followed by radiocontrast agents used during diagnostic imaging procedures and chemotherapeutics that are used in treatment of cancer.
Drugs caused one third of acute kidney injuries, and those drugs included indinavir or tenofovir, antibiotics (beta-lactams and aminoglycosides), radiocontrast agents, nonsteroidal antiinflammatory drugs, and lithium.
A new CT scan revealed a considerable aerial distension of the ileal and colic loops, mainly of the transverse and descending colon, with no radiocontrast outside the rectal ampulla.
Patients who report itching like crazy while on opiates or in response to radiocontrast media are appropriately managed by their primary care physician without referral to an allergist, Dr.
Hoste et al investigated a large cohort of 787 critically ill patients with parenteral administration of an iodinated radiocontrast agent for computed tomography scans and angiography.
In addition, other drugs which frequently lead to allergy include radiocontrast materials, neuromuscular blocker agents and antiepileptics.
Time course of serial cystatin C levels in comparison with serum creatinine after application of radiocontrast media.