低场磁共振水成像在老年输尿管病变的诊断价值

目的:探讨低场磁共振MRU技术对老年人输尿管病变的诊断价值。方法:对11例经B超发现尿路扩张,IVP不显影或显示不满意患者,采用SE、FSE进行扫描,然后用重T2WI单次激发快速自旋回波(SSFSE)序列MRU检查。结果:输尿管癌3例,输尿管下段结石7例,输尿管憩室1例。病变显示良好。结论:低场MR的MRU是一种检查输尿管梗阻病变的较新手段,无创伤、无辐射、不需对比剂,尤其是对年老体弱及碘过敏和肾功能不良患者,具有其它影像手段无法取代的优越性,具有较高的临床诊断和应用价值。

The Evaluation of MRU in Diagnosis of Ureteral Diseases of Old People Using Lower Strength MRI

Objective:To evaluate MR urography(MRU) in diagnosis of ureteral diseases of old people using lower strength MR.Methods:11 cases were found ureterectasis using ultrasound(US),but the intravenous pyelography(IVP) was failure or dissatisfied.All of the cases were required MRU with heavy T_2 weighted imaging(T_2WI) of single-shot fast spin echo(SSFSE) sequence.Results:There were 3 cases of ureteral carcinomas,7 cases of ureteral calculosis and 1 case of ureteral diverticulum.Conclusion:MRU is a new method in the obstructive lesions of the ureter.And it is a technique without injury,radiation and contrast medium.Especially,it is useful to old people with iodine sensitivity or renal insufficiency.There is clear superiority to other methods,and expresses higher value in clinical diagnosis and application.