Paired X--ray micturating cystourethrography (MCU) and direct radionuclide cystography (DRC) were used to study 22 children with vesicoureteral reflux (VUR), observed for 27 times.

• 采用同位素直接法膀胱造影（DRC）与X线排尿式膀胱尿道造影（MCU），对22例膀胱输尿管返流（VUR）患儿进行对比检查。