Test Overview
A cystourethrogram is an
test that takes pictures of your
and
while your bladder is full and while you are
urinating. A thin flexible tube () is
inserted through your urethra into your bladder. A liquid material that shows
up well on an X-ray picture () is injected into
your bladder through the catheter, then X-rays are taken with the contrast
material in your bladder. More X-rays may be taken while urine flows out of
your bladder, in which case the test is called a voiding cystourethrogram
(VCUG).
If X-rays are taken while contrast material is being
injected into the urethra, the test is called a retrograde cystourethrogram
because the contrast material flows into the bladder opposite the usual
direction of urine flow.