A pyelogram is an x-ray of the urinary system that involves injecting a contrast dye into a vein to help doctors evaluate a person's kidneys, ureters, and bladder when they experience symptoms such as blood in the urine or pain in the side or lower back.

Intravenous pyelography, also known as intravenous pyelography (IVP), is an imaging method that helps examine abnormalities of the urinary system such as the kidneys, ureters, bladder, and urethra.