Allergic-like CT contrast reaction raises MRI contrast risk

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 from commonly used MRI contrast agents, according to a large, eight-year study published in the journal Radiology. The study also found that premedication or switching to a different MRI contrast agent may reduce risk in patients who have had previous contrast agent reactions.