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Contrast media reactions rarely happen, study finds
Concerns about the potential adverse reactions of patients to iodinated and gadolinium-based contrast agents used with CT and MRI may be more perceived than real, according to Mayo Clinic researchers.
Concerns about the potential adverse reactions of patients to iodinated and gadolinium-based contrast agents used with CT and MRI may be more perceived than real, according to Mayo Clinic researchers.
Dr. Christopher H. Hunt and colleagues in Rochester, MN, reviewed 456,930 episodes of contrast media administration. From this base, 522 cases of mostly mild adverse effects were identified. Reactions included nausea, vomiting, and skin rashes. Only 16 cases, 10 severe reactions to low-osmolar iodinated agents and six to gadolinium, needed transfer to an emergency department for further observation and treatment. One patient died, but possibly due to unrelated causes. Pretreatment with corticosteroids helped bring down the incidence of adverse effects (AJR 2009;193[4]:1124-1127). Adverse contrast reactions can occur, but they are rarely severe and most require only observation and supportive care, Hunt 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.
