磁共振尿路造影术在泌尿系疾病的应用

Application of MR urography in urinary tract diseases

目的 评价磁共振尿路造影术 (MRU)在泌尿系疾病的临床应用价值。方法 44例检查者 ,包括正常对照 7例 ,尿路结石 15例 ,泌尿系原发及继发肿瘤 11例 ,输尿管良性狭窄 4例 ,泌尿系统先天畸形 6例 ,尿路结核 1例。采用 GE1.5 T超导型磁共振机 ,MRU经冠位 FSE序列重T2加权成像所得。结果 MRU能较好地显示尿路全程 ,对尿路梗阻能作出准确的定位及定性诊断 ,但对非梗阻性病变须结合 MRI检查综合分析。结论 MRU在泌尿系疾病有较大的应用价值 。

Objective To evaluate the clinical application of MRU in the diagnosis of the urinary tract disease.Methods 44 patients were examined with coronal heavily T2 weighted fast spin echo pulse sequence in the GE 1.5 tesla MR unit,including normal findings ( n =7),urinary stone ( n =15),primary or secondary tumors ( n =11),benign urecteral stenosis ( n =4),congenital malformations ( n =6)and kindney tuberculosis ( n =1).Results Urinary tract can be well demonstrated on MRU images ,the location and cause of urinary tract obstruction were accurately shown also.However,MRU should connect with MRI in the diagnosis of urinary tract diseaes without obstruction.Conclusions As a new method of urinary tract imaing,MRU has great value in clinical application.