磁共振尿路成像(MRU)在儿童输尿管异位开口中的诊断价值  

Value of magenetic resonance urography in diagnosis of ectopic ureter in children

作　　者：万常华[1] 郑光[1] 胡军武[1] 夏黎明[1] 

机构地区：[1]华中科技大学附属同济医学院同济医院放射科,武汉430030

出　　处：《放射学实践》2011年第6期656-658,共3页Radiologic Practice

摘　　要：目的:探讨MRU在儿童输尿管异位开口定位诊断中的价值。方法:对手术证实存在输尿管异位开口的患者27例行MRU及MRI常规FSE检查,分析扫描图像,对输尿管异位开口的部位进行定位并与手术结果进行对照,计算MRU及MRI常规FSE序列的诊断符合率。结果:MRU结合MRI常规FSE序列显示27例患者中共发现重复肾输尿管畸形合并一支输尿管异位开口者18例;异位肾伴输尿管异位开口者7例;单纯输尿管异位开口者2例。按输尿管开口部位统计,其中开口于男性尿道前列腺部6支,女性前庭部9支,女性阴道部4支,膀胱低位8支。与追踪的手术结果进行对照,MRU及MRI常规FSE序列对输尿管异位开口部位的判断与手术结果完全吻合,其对输尿管异位开口部位判断的诊断符合率为100%。结论:MRU结合MRI常规FSE序列在判断异位输尿管开口部位方面具有明显的优势,可以作为输尿管异位开口手术前定位的有效方法。Objective：To explore the diagnostic value of magenetic resonance urography（MRU） in ectopic ureter in children.Methods：Twenty-nine cases confirmed as ectopic ureter by surgery were examined using MRU and MRI.The image features and the locations of the ectopic ureter were analyzed.Results：MRU with conventional MRI FSE sequence showed：18 cases with nephro-ureteral duplication with ectopic ureter,7 cases with ectopic kidney and ectopic ureter;2 cases with single ectopic ureter.According to the ureteral orifice location,the ureteral orifice opened into the prostatic urethra in 6 cases,into the female vestibule in 9 cases,into the female vagina in 4 cases and into the lower wall of urinary bladder in 8 cases.Compared with the surgical results,the diagnostic accuracy of MRU and MRI in locating the ectopic ureteral orifice was 100%.Conclusion：MRU combined with conventiona MRI can be used in determining the location of ectopic ureteral orifice in children.

关 键 词：尿路造影术 输尿管疾病 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R814.43[医药卫生—诊断学]