Another test, called a voiding cystourethrogram or a VCUG, can show how urine moves through the ureterovesical junction.

另一项检查，称为排胱造影（VCUG），能显示液流经输管胱连接部的情况。

In a voiding cystourethrogram, a contrast dye is injected into the bladder through a catheter, and x-ray images are taken to see if the dye moves from the bladder up into the ureters and kidneys.

VCUG检查中，通过中放置的导管向胱注射造影剂，拍摄x光片观察造影剂是否从胱上行进入输管和肾。