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目的:探讨数字化X线摄影尿路造影、螺旋CT(SCT)、磁共振成像(MRI+MRU)对上尿路肿瘤所致梗阻的诊断价值。方法:对28例上尿路肿瘤病例进行影像学检查分析,比较不同检查方法的诊断准确率。结果:尿路造影对上尿路肿瘤所致梗阻定位、定性及梗阻与扩张程度诊断的准确率分别为93 %、93 %、100 %;SCT诊断的准确率分别为90 %、90 %、80 %;MRI+ MRU诊断的准确率分别为85.7 %、71.4 %、71.4 %。结论:尿路造影为上尿路肿瘤首选且有重要价值的检查方法,对多数肿瘤的部位、形态、病变范围及病因可作出明确诊断。SCT可作出明确的定性及分期诊断,对手术可切除性作术前评估,为选择手术方式提供依据。MRI+ MRU可显示更多软组织病变信息,指导临床治疗方案的选择实施。
Objective: To investigate the value of digital radiography, urography, spiral CT (SCT) and magnetic resonance imaging (MRI + MRU) in the diagnosis of upper urinary tract obstruction. Methods: Twenty-eight cases of upper urinary tract tumor were analyzed by imaging examination and the diagnostic accuracy of different examination methods was compared. Results: The diagnostic accuracy of urography for upper urinary tract obstruction was 93%, 93% and 100% respectively. The diagnostic accuracy of SCT was 90%, 90% and 80% respectively %. The diagnostic accuracy of MRI + MRU was 85.7%, 71.4% and 71.4% respectively. CONCLUSION: Urography is the first choice and valuable method in the diagnosis of upper urinary tract tumors. The location, shape, extent and causes of most tumors can be clearly diagnosed. SCT can make a clear qualitative and staging diagnosis, resectability of surgery for preoperative assessment, to provide the basis for the selection of surgical methods. MRI + MRU can show more soft tissue lesions, guide the implementation of clinical treatment options.