Fig. 4

Computed tomography scan of urinary system and cystography data after the operation. a Coronal position of CT. b Horizontal position of CT. c Three-dimensional (3D) enhanced CT (anterior-posterior position). d 3D enhanced CT (lateral position). e Bladder capacity of cystography. f Right side: vesicoureteral reflux during urination of cystography, solid arrow indicating vesicoureteral reflux. g and h Right side and left side: vesicoureteral reflux could be completely prevented by pressing the corresponding point on the abdominal surface when straining for voiding urine; solid arrow indicates the pressure point