Department of Urology Tests and Procedures

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If your child is scheduled for one of the following tests, it may be helpful for you and/or your child to know exactly what to expect:

Voiding cystourethrogram (VCUG): This is a minimally invasive bladder test that uses a special x-ray technology called fluoroscopy to visualize your child's urinary tract and bladder. A small tube is placed inside the bladder through the urethra, and the bladder is filled with dye. The test takes about 30 minutes.

Conditions diagnosed by a VCUG include

  • posterior urethral valves
  • urethral stricture
  • ureterocele
  • vesicoureteral reflux
  • bladder stones
  • bladder tumors

Radionuclide cystogram: The test is done in a similar manner to the VCUG but is only used to diagnose vesicoureteral reflux. The test takes about 30 minutes.

Ultrasound: This is a non-invasive test that allows visualization of the bladder and kidneys. Sound waves are sent through the patient's body, and the results give 2D images of the urinary tract. The test takes about 20 minutes.

DMSA scan: This test is used to determine kidney function or kidney damage and requires a special tracer to be injected intravenously. Once injected, the tracer will light up the kidney after about 3 hours. The test will reveal the presence of kidney infection or kidney damage and takes about one hour.

MAG 3 renal scan: This is a similar test to a DMSA scan, except it also allows us to determine if there is a blockage. The tracer is injected intravenously and is followed as it travels down into the bladder. In patients who have any blockage or obstruction in the urinary tract, the test shows that the tracer does not drain. The test takes about an hour and a half.

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- Sandra L. Fenwick, President and CEO
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