排泄性尿路造影（IVU）是泌尿外科常用的检查方法。通常使用的造影剂有离子型高渗性（加复方泛影葡胺）和非离子型低渗性（如优微显）两大类。为探讨这两类造影剂对肾功能的影响，我们对40例肾功正常患者造影前后进行多项肾功指标检测并进行对比研究，现报道如下：对象与方法患 Excretory urography (IVU) is a common urological examination. Commonly used contrast agent with ionic hypertonic (plus compound diatrizoate meglumine) and non-ionic hypotonic (such as meso significant) in two categories. In order to explore the impact of these two types of contrast medium on renal function, we conducted a comparative study on a number of kidney function tests before and after contrast-enhanced imaging in 40 patients with normal renal function and are reported as follows: Subjects and Methods