What are Contrast and Radionuclide Cystography Tests?

These tests are used to diagnose bladder problems. It helps your urologist see how well the bladder works, and to find the cause of infections or check for tumors or stones. It is a way to look closely at the bladder walls.

  • Contrast cystography uses a contrast dye in the bladder for clearer x-rays. They may be standard x-rays or fluoroscopy. Fluoroscopy streams x-ray images, like a movie.
  • Radionuclide cystography is also known as a Bladder Scan. For this test, your radiologist or nurse will inject a radioactive fluid into your bladder for x-rays.

Cystography is often used to diagnose bladder fistula, bladder rupture, bladder stones, or vesicoureteral reflux (VUR). Many physicians believe that the Bladder Scan is better to find VUR because it less radiation.

Your doctor will talk with you about which test to use, and when.