目的 探讨磁共振尿路造影(MRU) 对重复肾输尿管畸形的诊断应用价值研 究。方法 对本院2010年1月-2015年1月重 复肾输尿管畸形的符合要求的40例患者为 研究对象，从MRU对重复肾输尿管畸形疾 病的诊断准确率、MRU技术具体运用、MRU 的技术优势等阐述MRU对重复肾输尿管畸 形患者的诊断应用价值研究。结果 40例 患者经MRU检查后，MRU诊断结果显示重复 肾患者为40例，MRU结果与患者手术结果 相比，MRU的确诊率为100%，其中重复肾 单侧病变患者22例，双侧病变患者18例。 MRI平扫BTFE序列与SPAIR序列图像清晰， 能有效对肾功能进行准确评价；MRU的MIP 技术与多角度立体显示重复肾、输尿管的 空间解剖结构，全面性佳。结论 磁共振 尿路造影(MRU)禁忌症少，无需造影剂且 无辐射，对重复肾输尿管畸形诊断率高， 图像显示立体，为临床手术提供具体影像 学指导资料。

Objective To investigate the clinic application value of MRU on duplex kidney. Methods 40 cases with duplex kidney in our hospital from January 2010 to January 2015 were selected. Observe the value from correct diagnosis rate of MRU, MRU application and MRU technological superiority. Results 40 cases after MRU, results showed 40 cases with duplex kidney. Compared with surgery results, diagnose rate of MRU was 100%, 22 cases with unilateral lesion and 18 cases with bilateral lesions. In MRI scan, BTFE and SPAIR had clear image, it can effectively evaluate renal function. MIP of MRU can show space anatomical structure of duplex kidney and ureter. Conclusion MRU has shorter contraindication, need no contrast agent and nonradiative. It has higher diagnostic rate on duplex kidney and provide guide information on clinic surgery.