What is a voiding cystourethrogram?

Bladder+urethra xray: Vcug is a fluroscopic xray stud to demostrate bladder + urethra during filling + voiding. Catheter is introduced into the bladder which is slowly filled with xray contrast material, ideally with antibiotic to avoid causing a uti. Subject can hopefully urinate when bladder is full. Study demonstrates bladder + urethral abnormalities such as bladder reflux, outpouching diverticula, +voiding dynamics.

Lower UT X-Ray: Voiding cysto-urethrogram or VCUG is an xray study of bladder and urethra. Performed by instilling radio-opaque contrast medium, via a small caliber catheter, into the bladder. Subject then empties their bladder as the catheter is removed or around the catheter. Study is monitored by fluoroscopy. Anatomy of bladder and urethra, as well as ureter if reflux present, is demonstrated.