磁共振泌尿系造影技术在肾移植中的临床应用  

MR urography:technique and clinical application in patients with kidney transplantation

作　　者：郑军华[1] 闵志廉[1] 周伟民 朱有华[1] 

机构地区：[1]第二军医大学长征医院泌尿外科,上海200003 [2]宜兴市第一人民医院

出　　处：《中华外科杂志》2000年第8期592-594,共3页Chinese Journal of Surgery

摘　　要：目的　评价磁共振泌尿系造影技术对揭示肾移植术后尿路梗阻部位及原因的价值。　方法　用重T2加权快速自旋回波 (FSE)序列和脂肪抑制技术作MR泌尿系成像 2 8例。原发病均为慢性肾炎尿毒症 ,均为首次移植。临床诊断急性排斥 3例 ,移植肾肾功能延迟恢复 1例 ,B超显示移植肾轻度积水 2例 ,移植肾、输尿管中度积水 3例。所有图像均作最大信号强度投影 (MIP)处理。　结果　 2 7例肾移植术后均清楚显示肾实质和泌尿系集合系统高质量的影像 ,除 1例移植肾肾衰患者外。 9例为阳性结果。阳性病种包括 :移植肾、输尿管中度积水 3例。 2例为移植肾轻度积水 ,未见输尿管膀胱吻合处狭窄 ,作临床随访。 3例为急性排斥反应 ,1例为移植肾肾衰。　结论　MR泌尿系成像是一种很可靠的、非侵袭性的检查方法 ,它不用造影剂 ,可避免碘副反应。在形态上 ,它能较好地显示泌尿系的解剖结构 ,是技术上的一大进步。对肾移植术后发生的输尿管外科并发症的诊断尤其有效及安全。Objective[WT5”BZ] To assess the value of magnetic resonance urography (MRU) for the noninvasive postoperative evaluation of renal transplants. [WT5”HZ]Methods[WT5”BZ] 28 cases of renal transplantation were examined with a modified,heavily T2 weighted fast apin echo pulse sequence and fat suppression pulse aid.Postprocedure processing was performed with a maxium projection(MIP) algorithm. [WT5”HZ]Results[WT5”BZ] 28 patients were studied. MRU revealed abnormal finding in 9 patients: mild dilatation of the renal pelvis without any urodynamic relevant obstruction (2), moderate dilatation of the renal pelvis(3),acute rejection(3), and ATN(1). Ureteral stenosis was diagnosed in 1 patients and treated surgically. [WT5”HZ]Conclusions[WT5”BZ] MRU is an alternative to conventional urinary tract images techniques. It requires no radiation or iodinated contrast material. It is reliable and noninvasive in depicting the urinary tract.MRU can be used as a noninvasive technique for assessment of renal transplantation in cases suspicious of complication in the excretory system. [WT5”HZ]

关 键 词：磁共振成像 肾移植 MRU FSE 泌尿系造影 

分 类 号：R445.2[医药卫生—影像医学与核医学]