intravenous pyelogram

(IN-truh-VEE-nus PY-eh-loh-GRAM) A series of x-rays of the kidneys, ureters, and bladder. The x-rays are taken after a dye is injected into a blood vessel. The dye is concentrated in the urine, which outlines the kidneys, ureters, and bladder on the x-rays. Also called intravenous pyelography and IVP.