Hederström E, Forsberg L
Acta Radiol Diagn (Stockh). 1985 Mar-Apr;26(2):201-7. doi: 10.1177/028418518502600214.
Ultrasonography for detection of postoperative intrarenal dilatation following surgical intervention for vesicoureteral reflux was investigated in 102 children (0-14 years, mean age 4 years and 9 months) over a period of 5 years and was compared with urography. Ultrasonography had a high accuracy for demonstration of even slight intrarenal dilatation caused by postrenal obstruction, while slight and moderate non-obstructive dilatation often was overlooked. The results support the application of sonography for repeated controls of postrenal obstructive dilatation in children with a known medical record in order to diminish their exposure to radiation. The high accuracy does not apply to single sonograms in examination of possible obstruction of unknown origin where some alternative method should be added.
对102名儿童（0至14岁，平均年龄4岁9个月）进行了为期5年的研究，探讨超声检查在膀胱输尿管反流手术干预后检测术后肾内扩张的情况，并与尿路造影进行比较。超声检查对于显示由肾后梗阻引起的即使是轻微的肾内扩张具有很高的准确性，而轻微和中度的非梗阻性扩张常常被忽视。这些结果支持应用超声检查对有已知病史的儿童反复进行肾后梗阻性扩张的检查，以减少他们接受辐射的剂量。在检查可能来源不明的梗阻时，单次超声检查的高准确性并不适用，此时应增加一些替代方法。
