Zheng J, Min Z, Zhou W, Zhu Y
Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
Zhonghua Wai Ke Za Zhi. 2000 Aug;38(8):592-4.
To assess the value of magnetic resonance urography (MRU) for the noninvasive postoperative evaluation of renal transplants.
28 cases of renal transplantation were examined with a modified, heavily T2-weighted fast apin-echo pulse sequence and fat-suppression pulse aid. Post-procedure processing was performed with a maximal-projection (MIP) algorithm.
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.
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.
评估磁共振尿路造影（MRU）在肾移植术后无创评估中的价值。
对28例肾移植患者采用改良的重T2加权快速自旋回波脉冲序列和脂肪抑制脉冲序列进行检查。采用最大密度投影（MIP）算法进行后处理。
对28例患者进行了研究。MRU在9例患者中发现异常：肾盂轻度扩张且无任何与尿动力学相关的梗阻（2例）、肾盂中度扩张（3例）、急性排斥反应（3例）和急性肾小管坏死（1例）。1例患者诊断为输尿管狭窄并接受了手术治疗。
MRU是传统尿路成像技术的一种替代方法。它无需辐射或碘化造影剂。在描绘尿路方面可靠且无创。对于怀疑存在排泄系统并发症的肾移植病例，MRU可作为一种无创技术用于评估。
