利尿性肾图在小儿肾孟输尿管连接部梗阻致肾积水诊断中的作用

Using diuretic renogram in diagnose pediatric hydronephrosis due to anomalies of pyeloureteral junction

目的 探讨以利尿性肾图替代静脉尿路造影对小儿肾盂输尿管连接部梗阻引起的肾积水进行诊断的可能性。方法 对1995年8月至2001年10月间的52例同时行静脉尿路造影和利尿性肾图检查并进行了肾盂成形术的病例进行回顾性分析,男47例,女5例,年龄0.2～13岁(平均6.5岁)。结果 本组52例静脉尿路造影对梗阻部位判断有52例(100％)正确;利尿性肾图检查后,52例患儿梗阻部位的判断也都(100％)正确。静脉尿路造影和利尿性肾图在梗阻部位诊断上差异没有显著性意义(P>0.05)。结论 在诊断小儿肾盂输尿管连接部梗阻上,以利尿性肾图来替代静脉尿路造影是可行的。

Objective To explore the possibility of diuretic renogram instead of intravenous urogra- phy to diagnose pediatric hydronephrosis due to anomalies of pyeloureteral junction. Methods From Aug. 1995 to Oct. 2001, 52 children(47 boys and 5 girls) with hydronephrosis who underwent both diuretic renogram and intravenous urography before dismembered pyeloplasty were retrospectively analyzed. The ag- ing ranged 2 months to 13 years with a mean of 6.5 years. Results Accuracy of intravenous urography is 100% in comfirming the site of obstruction, so did diuretic renogram, There were no differences between diuretic renogram and intravenous urography in diagnosis of obstruction of pyeloureteral junction (P> 0.05). Conclusion It is applicable to use diuretic renogram instead of intravenous urography to diagnose hydronephrosis caused by obstruction of pyeloureteral junction.