Test Overview
An intravenous pyelogram (IVP) is an
X-ray test that provides pictures of the kidneys, the
bladder, the
ureters, and the
urethra (urinary tract
). An IVP can show the
size, shape, and position of the urinary tract, and it can evaluate the
collecting system inside the kidneys.
During IVP, a dye called
contrast material is injected into a vein in your arm.
A series of X-ray pictures is then taken at timed intervals.
IVP is commonly done to identify diseases of
the urinary tract, such as kidney stones, tumors, or infection. See an
illustration of an
IVP
showing a kidney stone
. It is also used to look for problems
with the structure of the urinary tract that were present from birth
(congenital).
An
ultrasound or a
computed tomography (CT) scan may be done instead of
an IVP if more details about the urinary tract
are needed.