螺旋CT平扫重建诊断输尿管结石合并肾功能衰竭的应用价值

The value of reformatted unenhanced spiral CT of ureter for ureterolithiasis with renal failure

目的评价螺旋CT平扫重建诊断输尿管结石并肾功能衰竭的价值。方法回顾分析10例因输尿管结石并肾功能衰竭就诊病例的临床及影像学资料。双侧输尿管结石导致尿闭6例,孤立肾输尿管结石2例,一侧肾萎缩对侧输尿管结石2例。BUN:16.8￣42.4mmol/L,Cr:531￣1025μmol/L。10例均行CT平扫重建尿路成像、KUB、超声检查;其中4例行MRU检查。结果10例平扫CT重建均明确诊断输尿管不同部位的结石,诊断符合率100%。KUB结石显影2例(20%)。超声仅1例提示腹段输尿管内结石(10%)。平扫CT三维重建诊断符合率明显高于KUB、超声、MRU,差别有显著性(P<0.01)。结论非增强螺旋CT输尿管重建可获得良好的输尿管成像,在输尿管结石并肾功能衰竭的诊断方面具有重要的临床价值。

[Objective] To value the diagnostic efficacy of the reformatted unenhanced spiral CT of ureter for urterolithiasis with renal failure. [Methods] The clinical and imaging data of 10 cases were analyzed retrospectively. Double side ureterolithiasis were 6 cases, solitary kidney 2 cases and one side renal atrophy and other side ureterolithiasis 2 cases. All of 10 cases were executed by reformatted unenhanced spiral CT, KUB and ultrasonograph. 4 cases were executed by MRU. [Results] The diagnosis accurate rate of the reformatted CT is a hundred per cent, KUB twenty per cent and ultrasonograph only ten per cent. The difference is significant (P <0.01). [Conclusion] The formatted nonenhanced spiral CT of ureter has potentil as an imaging for the ureterolithiasis with renal failure.