Medically reviewed by Daniel More, MD A contrast dye allergic reaction can occur after a diagnostic imaging test, such as magnetic resonance imaging (MRI) or computed tomography (CT) scan. Severe ...

People with a history of allergic-like reactions to iodinated contrast media, which is used in a variety of X-ray-based procedures, such as CT and angiography, are susceptible to similar reactions ...

The morning after a contrast CT of the chest, a 64-year-old patient noted a swelling under the chin that enlarged over the next three to four hours. The swelling was nontender, nonfluctuant, and ...

The administration of iodinated contrast media (ICM) between January 2014 and November 2024 in the US resulted in anaphylaxis at a rate of 20.3 cases per 100,000 scans, 13% of which were ...

Please provide your email address to receive an email when new articles are posted on . 84.8% of patients who followed the protocol completed CT scans without any adverse reaction. 53.3% of patients ...

The American College of Radiology (ACR) and the American Academy of Allergy, Asthma & Immunology (AAAAI) issued a consensus statement in 2025 that harmonizes previously divergent viewpoints on ...

People with a history of allergic-like reactions to iodinated contrast media, which is used in a variety of X-ray-based procedures, such as CT and angiography, are susceptible to similar reactions ...