ETIOLOGIC WORK-UP OF COMPLEX VOIDING DISORDERS (CVD) IN BOYS - EVALUATION OF THE IMAGING STRATEGY BASED ON A RETROSPECTIVE STUDY OF 58 FILES

The strategy of radiological investigations in males with severe voidi ng disorders has not been clearly established. To define the most effe ctive strategy, a retrospective study of 58 files of boys investigated for severe voiding disorders (excluding neurogenic bladder) was perfo rmed. The following investigations were performed in this series: intr avenous urography (IVU) completed by voiding cystourethrogram (VCUG) ( 41%), VCUG alone or associated with urinary ultrasound (30%), IVU alon e (20.5%) ultrasound alone (1.5%) and ultrasound completed by VCUG or IVU (7%). When prescribed first, VCUG was always sufficient for accura te diagnosis; in contrast, a second investigation was usually necessar y when IVU (66%) or ultrasound (80%) were performed first. The interpr etability of the voiding urethrogram was also higher with VCUG (90%) t han with IVU (66%); the sensitivity was 94% for VCUG and only 69% for IVU and 8% for ultrasound. This study confirms that VCUG combined with urinary ultrasound is the most reliable way to radiologically investi gate male severe voiding disorders.