磁共振水成像在上尿路梗阻诊断中的作用

THE DIAGNOSTIC EFFECT OF MRU IN PATIENTS WITH UPPER URINARY OBSTRUCTION

探讨MRU在上尿路梗阻性疾病诊断中的价值。方法 :对 32例上尿路梗阻病人进行了MRU检查 ,并分别与术后结果进行比较。结果 :MRU水成像在梗阻部位上诊断准确率为 10 0 % ,肾盂输尿管连接部梗阻和巨输尿管症结合临床资料的术前诊断率为 10 0 % ,输尿管肿瘤和炎性狭窄的诊断率为 73%。结论 :MRU水成像的诊断率高 ,无创且不受肾功能影响 ,并发症少 。

Objective:To evaluate the diagnostic efficacy of MUR in patients with upper urinary obstruction.Method:MRU was carried out in 32 consecutive cases of ureterohy dronephrosis detected by B-ultrasonography.Results:Urinary tract dilatations at different levels were clea rl y visualized in all the cases in spite of impaired renal function. The causes of obstruction included ureteropelvic junction obstruction?megaureter?ureteral st ricture and ureteral tumors and were detected by MRU.Conclusions:MRU would reveal important information which might n ot be detected by IVU and the technique is noninvasive with no need of contrast media.