Safety Evaluation of Linear and Macrocyclic Gadolinium Based Contrast Agents for Patients With Mild to Moderate Renal Insufficiency Undergoing Enhanced Magnetic Resonance Imaging

According to the requirements of the study, 600 cases of patients with mild to moderate renal insufficiency were enrolled. Gadodiamide and Gadoteric acid meglumine salt were used for enhanced MRI. Observe the adverse reactions within 60 minutes of using the gadolinium contrast agents; follow up by telephone at 3, 6, 12, and 24 months after the inspection. The primary endpoint is the incidence of the various adverse events, and the secondary endpoints are changes of serum creatinine and inflammatory factors (TNF-α, hs-CRP, IL-6) before and after CE-MRI, patient skin examination and evaluation (evaluation of relevant indicators of skin biopsy).