Clinical Research Protocol of Ferumoxytol for Magnetic Resonance Enhancement Imaging in Patients With Atherosclerosis.

"Observe the injection site for skin invagination, rash, or urticaria during injection. Patients and their relatives were asked about any subjective adverse events before, during, and after drug injection, and all adverse events were recorded on the case report forms, and adverse events were scored according to the Common Terminology Criteria for Adverse Events (CTCAE) from Grade 1 mild to Grade 5 death, Observe the vital signs of patients. Patients undergoing MRI underwent electrocardiogram (ECG) monitoring before and within 60 minutes after ferumoxytol administration, specifically including: biochemical panel, iron metabolism, liver and kidney function, cytokines, blood routine, urine routine, 24-hour urine volume, glycosylated hemoglobin and so on. All patients received a total of 3 blood and urine collections at 7 days before injection, 48 hours after injection, 1month to 3months after injection."

steady-state, high-spatial-resolution, three-dimensional fast low-angle shot acquisition technique, T2W-MDIR imaging, polysaccharide superparamagnetic iron oxide injection enhanced T1W and T2W, T2\* mapping, and Steady state free precession sequence, T2 weighted black blood sequence, T2 preparation single shot steady state free precession sequence, T2\* weighted multi-echo/gradient echo sequence, polysaccharide superparamagnetic iron oxide injection enhanced imaging, Breath-triggered Transverse 3D Balance-Vortex Field Echo (b-TFE) Magnetic Resonance Angiography, iMSDE-SPGR Sequence, 4D Flow MRI. the MRI anxiety questionnaire.