Male Urinary Tract
Female Urinary Tract
For this test, the doctor will insert a catheter through the urethra and into the bladder. A contrast dye or radioactive agent is moved through the catheter into the bladder.
Pictures (images) are taken during this process from different angles to see all parts of the bladder. Images are also taken after the dye is drained (see the voiding cystourethrogram (VCUG) article for more information.
The radionuclide process is often used to diagnose VUR . With this, images are collected every 10 to 15 seconds. Contrast cystograms are often used to look at the male urethra for bladder trauma, for example.