磁共振尿路成像对肾盂输尿管先天性疾病的诊断价值

Evaluation of MR urography in the diagnosis of pelvis and ureter congenital diseases

目的 :探讨磁共振尿路成像 (MRU)对肾盂、输尿管先天性疾病的诊断价值。方法 :对 11例肾盂、输尿管先天性疾病患者行MRU检查以明确诊断。结果 :MRU诊断肾盂输尿管交界处狭窄 3例 ,腔静脉后输尿管 3例 ,巨输尿管症 2例 ,肾盂输尿管完全重复畸形伴异位开口 3例 ;均可显示梗阻部位及尿路扩张的形态 ,其定位诊断准确率为 10 0 %。结论 :MRU是安全有效的非侵袭性的影像学检查方法 ,对肾盂、输尿管先天性疾病患者 ,尤其对有静脉尿路造影禁忌证和患侧肾功能严重受损的患者 。

Objective:To evaluate the value of magnetic resonance urography(MRU) in the diagnosis of pelvis and ureter congenital diseases.Method:The MRU and clinical data of 11 cases of pelvis and ureter congenital diseases were retrospectively studied.Result:In 11 cases with pelvis and ureter congenital diseases, including congenital stricture in ureteropelvic junction(3), retrocaval ureter(3), megaloureter(2), complete duplication of pelvis and ureter with ectopic orifice(3). MRU provided high resolution images of the pelvis and ureter tract in all patients. MRU was successful in localizing of obstruction in all of the 11 cases(100%).Conclusion:MRU is a safe、highly efficient and noninvasive method for detecting disorders of pelvis and ureter congenital diseases, especially for patients who had contraindication of IVU examination or had dilated urinary system with poor excretory function.