Main Page | See live article | Alphabetical index An intravenous pyelogram is a radiological procedure used to visualise disturbances of the urinary system, including the kidneys, ureters, and bladder. It is done as an X-ray after contrast is injected into a vein. This contrast is removed from the blood by the kidneys, where it appears opaque on X-ray film. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.