*Ultrasound examination of the bladder after residual air and contrast has been removed and the bladder moderately filled with sterile saline. This allows identification of ureterovesical junctions and visualization of ureteral jets from ureters entering the trigone normally. Alternatively, direct visualization of ureteral emptying with fluoroscopy. | *Ultrasound examination of the bladder after residual air and contrast has been removed and the bladder moderately filled with sterile saline. This allows identification of ureterovesical junctions and visualization of ureteral jets from ureters entering the trigone normally. Alternatively, direct visualization of ureteral emptying with fluoroscopy. |