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由于各种检查(超声、CT、核医学等)的技术进步,对肾功衰竭患者未必首先要进行排泄性(经静脉)尿路造影。但是,作为观察全部尿路系统它仍不失为很好的方法,对有无梗阻或者是否为可逆性的肾功衰竭可提供有用的材料。目前,广泛使用的尿路造影剂是泛影葡胺和康瑞等一类的离子性造影剂。正常时,几乎全由肾小球滤过,向尿中的排泄量10分钟时为投给量的12%,1小时为38%,2小时为50%,6小时为83%,24小时为94～100%,另由肝和小肠排泄的不超过1%,在
Due to the technical advances in various examinations (ultrasound, CT, nuclear medicine, etc.), it is not necessary to first perform a venous (transvenous) urography in patients with renal failure. However, it is still a good way to look at the entire urinary system, providing useful material for renal failure with or without reversibility. Currently, the widely used urinary tract contrast medium is a class of ionic contrast agents such as diatrizoate and diazepam. Normally, almost all glomerular filtration, to the urinary excretion of 10 minutes to vote for the amount of 12%, 38% for 1 hour, 2 hours to 50%, 6 hours to 83%, 24 hours for the 94 ~ 100%, the other by the liver and small intestine excretion of not more than 1%, in