急性尿路梗阻及尿路梗阻性肾周围炎的影像学研究

目的：分析急性尿路梗阻的原因及由尿路梗阻引起的肾周围炎的 CT、MR 影像表现,评价 CT、MR 对尿路梗阻及尿路梗阻性肾周围炎的诊断价值。方法分析72例急性尿路梗阻的原因及尿路梗阻性肾周围炎 CT、MR 表现,着重探讨 CT、MR 在输尿管结石及肾周围炎诊断中各自的优势。结果70例(72个部位)输尿管结石患者中,CT 诊断结石准确率为100%,MR 诊断结石准确率为59.7%；72例肾周围炎患者中,MR 对肾周软组织内积液的显示明显优于 CT。结论CT、MR 在尿路梗阻及尿路梗阻性肾周围炎诊断中各有优势,CT 对输尿管结石的诊断有明显的优势,MR 对肾周围炎诊断有明显优势。

Imaging findings of acute urinary tract obstruction and perinephritis

Objective To analyze the reasons and imaging features of acute urinary tract obstruction and perinephritis and to evaluate the diagnostic efficacy of CT and MR in this kind of patients.Methods Imaging features of 72 patients with acute urinary tract obstruction were analyzed.The advantages of CT and MR were evaluated in diagnosis of the diseases.Results In all 70 patients (72 sites)with ureteral calculus,the accurate rates of diagnosis were 100% on CT and 59.7% on MR.In the 72 patients with perinephritis,the detection rate of effusion in perinephric soft tissue on MR was better than that on CT.Conclusion CT or MR has individually diagnostic advantage in acute urinary tract obstruction and perinephritis,CT is better in ureteral calculus and MR in perinephritis.