摘要
目的:评价磁共振水成像(MRU)对泌尿系梗阻性疾病的临床诊断价值。方法:采用快速自旋回波重T2加权序列和脂肪抑制技术,对56例经B超和IVP怀疑上尿路梗阻患者,进行泌尿系冠状位扫描,将图像按最大强度投影法重建出MRU图像。结果:其中32例MRU均能清晰显示尿路梗阻的部位和肾盂积水,解剖结构清楚,可对梗阻作出定性诊断,并经手术和病理证实为尿路梗阻者。其中尿路结石16例,尿路先天性梗阻4例,输尿管炎性狭窄2例,移植肾输尿管狭窄2例,其他8例。余26例排除上尿路梗阻。结论:MRU是无创伤的检查方法,不接触射线,不需碘对比剂,诊断尿路梗阻性疾病定位、定性准确,尤其适用于因严重梗阻IVP显影不良的病例。
Objective：To evaluate the clinical application of MR Urography（MRU） in diagnosing upper urinary tract obstruction. Methods：Fifty six patients were reexamined with fast spinecho heavily T2 weighed sequence and fat suppression pulse technique, acquired in coronal plane. After elimilation of the unrelated parts on the images slice by slice the three dimentional raw data of the urinary tract were project into a composite image of MRU using a maximum intensity projection（MIP） algorithm. Thirty two patients were verified by operation and pathology, including ureteral calculus（ n= 16） , congenital ureleral stricture （ n =4）,stricture caused by chronic inflammation （n=2）, ureteral stricture after kidney transplantation（ n= 2） and others（ n =8）. Results：MRU provided high resolution images of urinary tract in all patients with urinary Tract obstruction. The locations of urinary tract obstruction in all patients and the causes of bydronephrosis were distinctly dimonstrated. Conclusions： MRU is a noninvasive technique with excellent accuracy in the diagnosis of upper urinary tract obstruction. It is recommended for detecting the location of upper urinary trac obstruction.
出处
《临床泌尿外科杂志》
2006年第1期18-19,22,共3页
Journal of Clinical Urology
关键词
诊断显像
尿路性阻
诊断学
Magnetic resonance image
Urinary tract obstruction
Diagnosis
