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

另一项，称为排尿性胱尿道（VCUG），显示尿液流经输尿管胱连接部的情况。

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中，通过尿道中放置的导管向胱注射剂，拍摄x光片观察剂是否从胱上行进入输尿管和肾。