对比剂用于血管造影,能增加病变与正常脏器间的影像对比,更清晰地显示病变部位、范围及其严重程度,是常用的医学影像学诊断用药。水溶性碘对比剂从血管输注,以药物原型从肾脏排泄,高浓度对比剂对肾组织有一定的毒性,可导致肾功能 Contrast agent for angiography, can increase the contrast between lesions and normal organs, more clearly show the lesion, extent and severity, is commonly used in medical imaging diagnosis. Water-soluble iodine contrast agent from the vascular infusion, excretion from the kidneys with the drug prototype, high concentrations of contrast agents on the kidney tissue has some toxicity, can lead to renal function