磁共振尿路造影对泌尿系梗阻的诊断价值  

Study on diagnostic value of urologic obstruction by MRU

作　　者：黄胜[1] 何伯圣[1] 龚沈初[1] 姜洪标[1] 朱丽[1] 

机构地区：[1]江苏省南通市第一人民医院南通大学第二附属医院影像科,南通226001

出　　处：《南通大学学报（医学版）》2007年第5期382-383,385,共3页Journal of Nantong University(Medical sciences)

摘　　要：目的:探讨磁共振尿路造影对泌尿系梗阻的诊断价值。方法:回顾性分析40例经病理、临床或随访证实的泌尿系梗阻。结果:泌尿系梗阻40例磁共振尿路造影成功率100.0%,梗阻段狭窄类型为:截断征18例,杯口状3例,充盈缺损12例,鼠尾征3例,移行性狭窄4例。MRU结合MRI定位诊断准确率达100.0%,定性准确33例(82.5%),总确诊36例(90.0%)。结论:MRU作为一种无创、安全的新技术,对泌尿系梗阻和狭窄的定位诊断具有很高的价值,结合常规MRI图像能对大多数泌尿系梗阻性疾病做出定性诊断,是IVU的有效补充检查技术。Objective ： To study the diagnostic value of MR Urography（MRU） for urinary tract obstruction. Methods ：MRI findings of urologic obstruction in 40 cases were analyzed retrospectively. All cases were confirmed by pathology, clinical practice and follow-up visit. Result ：Successful rate of MRU performed in 40 patients was 100.0%. The accuracy of locative diagnosis was 100.0%（40/40）, the qualitative diagnostic accuracy was 82.5%（33/44）, and the general diagnostic accuracy was 90.0%（36/40） by combining MRU with conventional MRI for urologic obstructions. The shapes of obstructive extremity were variously displayed on MRI ： they were cut-off-sign（18 cases）, cup-port-form（3 cases）, filling defect （12 cases）, rat-tail sign （3 cases） and transitional narrow （4 cases）. Conclusion ：MRU is a new, safe and noninvasive technique, and is valuable in locating urologic obstruction. Combining MRU with conventional MRI, we can find the cause of subtotal urologic obstructive diseases. The technique of MRU is a efficacious supplement to intravenous urography （IVU）.

关 键 词：泌尿系梗阻 磁共振成像术 尿路造影 

分 类 号：R691.2[医药卫生—泌尿科学]