自 1997年以来 ,我们在作排泄性尿路造影 (ＩＶＰ)时 ,对常规 30ｍｉｎ显影不满意者延迟追踪摄片 ,至 1999年 10月共 30例 ,效果良好 ,现作初步小结。1　方法与结果常规ＩＶＰ ,对 30ｍｉｎ显影不满意者 ,根据病史 ,结合阅片情况 ,决定延迟摄片时 ,离检查台等待。在原注射造影 Since 1997, when we were making excretory urography (IVP), we did not follow up routine 30min imaging delay tracking radiography, to October 1999 a total of 30 cases, the effect is good, now make a preliminary summary. 1 Methods and Results Conventional IVP, 30min were not satisfied with the development of imaging, according to medical history, combined with reading the film, decided to delay the filming, waiting from the checkpoint. In the original injection contrast