Low-osmolar nonionic contrast agents pose a minimal safety risk to pediatric patients.
Low-osmolar nonionic contrast agents pose a minimal safety risk to pediatric patients.
Dr. Richard H. Cohan, a professor of radiology at the University of Michigan, and colleagues investigated the incidence of allergic-like reactions caused by low-osmolar nonionic contrast material in children from January 1999 through September 2004. They evaluated data from 11,306 patients who received contrast injections mostly for CT and for a few excretory urography exams. Fewer than 2% of the patients had severe but nonlethal acute allergic reactions related to contrast agents (AJR 2007;188:1643-1647).
Conventional wisdom holds that nonionic contrast agents pose minimal risk, but a sharp increase in the number of pediatric imaging exams using contrast media required a fresh look, Cohan said.
MRI-Based AI Radiomics Model Offers 'Robust' Prediction of Perineural Invasion in Prostate Cancer
July 26th 2024A model that combines MRI-based deep learning radiomics and clinical factors demonstrated an 84.8 percent ROC AUC and a 92.6 percent precision-recall AUC for predicting perineural invasion in prostate cancer cases.
Breast MRI Study Examines Common Factors with False Negatives and False Positives
July 24th 2024The absence of ipsilateral breast hypervascularity is three times more likely to be associated with false-negative findings on breast MRI and non-mass enhancement lesions have a 4.5-fold likelihood of being linked to false-positive results, according to new research.
Can Polyenergetic Reconstruction Help Resolve Streak Artifacts in Photon Counting CT?
July 22nd 2024New research looking at photon-counting computed tomography (PCCT) demonstrated significantly reduced variation and tracheal air density attenuation with polyenergetic reconstruction in contrast to monoenergetic reconstruction on chest CT.