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目的 :回顾性总结CT盆腔平扫在输尿管末端微小结石中的诊断价值 ,提高对输尿管末端微小结石诊断的准确性。方法 :对IVP (静脉肾盂造影 )显示一侧输尿管末端轻度梗阻而平片及IVP均未能发现末端结石而临床高度怀疑为结石 ,且病人同意CT检查的 19例患者 ,行盆腔双侧输尿管末端区域CT平扫 ,层厚、层距 2～ 5mm ,部分病例重叠扫描。结果 :19例中CT发现 15例 16枚输尿管末端微小结石 ,最大 8× 9mm ,最小仅 2mm ,结石发现率 84%。结论 :CT输尿管末端扫描对微小末端结石具有较大诊断价值 ,弥补了常规X线检查的不足 ,避免了不必要的逆行插管给病人带来的痛苦和创伤 ,提高了对输尿管末端微小结石诊断的准确率
OBJECTIVE: To retrospectively summarize the diagnostic value of CT pelvic scanning in the diagnosis of small ureteral calculi and to improve the accuracy of diagnosis of microlithiasis at the distal ureter. METHODS: IVP (intravenous pyelography) showed mild obstruction of the ureter at one side and no evidence of terminal calculi at the plain film or IVP. Of the 19 patients who were highly suspected of being clinically clinically suspected and underwent CT examination, pelvic bilateral ureters End of the region CT scan, layer thickness, layer spacing 2 ~ 5mm, some cases overlap scan. Results: Among the 19 cases, 16 cases of ureteric terminal calculus were found in 15 cases, the largest was 8 × 9mm and the smallest was only 2mm. The detection rate of stone was 84%. Conclusion: CT endoscopic ultrasonography has a great diagnostic value for small terminal calculus, which can make up for the shortcomings of conventional X-ray examination, avoid the unnecessary pain and trauma caused by retrograde intubation and improve the diagnosis of small ureteral calculi The accuracy rate