Wyly J B, Lebowitz R L
AJR Am J Roentgenol. 1984 Jun;142(6):1263-7. doi: 10.2214/ajr.142.6.1263.
Reflux into an ectopic ureter that opens into a girl's urethra has been difficult to demonstrate and has been thought to occur in only about a third of the patients with this anomaly. In an attempt to more reliably demonstrate this reflux, 12 girls aged 1 day to 6 years, who were suspected of having an ectopic ureter, were studied using a method of cyclic filling and voiding during the cystourethrogram. Reflux into their urethral ectopic ureter was shown in 11 (92%). The technique of cyclic voiding cystourethrography should be used in all girls in whom an ectopic ureter is suspected, either because of signs or symptoms or because of a dilated upper pole of a duplex collecting system seen on an excretory urogram or a sonogram. It should also be used when a conventional voiding cystourethrogram has shown no or only minimal reflux.
尿液反流至开口于女童尿道的异位输尿管一直难以证实，以往认为仅约三分之一患有这种异常的患者会出现这种情况。为了更可靠地证实这种反流，对12名年龄在1天至6岁、怀疑患有异位输尿管的女童，在膀胱尿道造影期间采用周期性充盈和排尿的方法进行了研究。结果显示，11名（92%）女童存在尿液反流至其尿道异位输尿管的情况。对于所有因体征或症状、或因排泄性尿路造影或超声检查发现重复集合系统上极扩张而怀疑有异位输尿管的女童，均应采用周期性排尿膀胱尿道造影技术。当传统的排尿膀胱尿道造影未显示反流或仅显示微量反流时，也应采用该技术。
