利尿肾动态显像在小儿先天性泌尿系统畸形中的应用

目的 探讨利尿肾动态显像（DR）在小儿先天性泌尿系统畸形诊断及随访评价中的应用价值.方法 163例确诊为先天性泌尿系统畸形的患儿均行DR检查,其中97例术后复查DR.观察泌尿系统各部位的形态特征,并根据DR结果对肾积水进行分度;对随访结果进行定性和定量评估.结果 泌尿系统畸形各有其DR影像改变特征.术后随访见肾功能明显提高;肾重复与输尿管畸形预后较好,尿道瓣膜预后较差.结论 DR可显示先天性泌尿系统畸形的特征性改变;用于定性或定量评估随访结果,简便可靠.

Clinical evaluation of diuretic renography in infants and children with congenital urinary abnormality

Objective The clinical application of furosemide plus 15-minute diuretic renography (F+15DR)was evaluated in infants and children with congenital urinary abnormalities.Methods In 163 patients with different congenital urinary abnormalities undergoing F+15 DR,97 were operated and followed by F+15 DR reexamination.The DR imaging characteristics were analyzed and,based on those analyses, hydronephrosis was classified into five degrees.Follow-up data were analyzed both quautitatively and quali- tatively.Results Each renal abnormality(kidney duplication 60,horseshoe kidney 6,multiple cysts of kid- ney 5,hypoplasia 35,ureterocele 20,displacement of ureter opening 13,megaloureter 20,valve of ureter 26)exhibited its unique characteristics on DR imaging.Renal functions of those patients were improved dur- ing the follow-up after surgical operations.Patients with duplex kidney and ureter abnormalities had better prognosis than those with urethral valve.Conclusion F+15 DR imaging may reveal characteristic changes of congenital urinary,abnormalities and helps in the qualitative or quantitative evaluation of the treatments.