A renal arteriogram, also called a renal angiogram, is an X-ray image of the arteries and blood vessels of the kidneys. The procedure involves inserting a catheter into the femoral artery and guiding it to the kidneys to inject contrast dye and take X-ray images. Possible findings include aneurysms, stenosis, renovascular hypertension, arteriovenous malformations, thrombosis, and other abnormalities of the renal arteries and veins. Complications may include radiation exposure, hemorrhage, nerve injury, embolism, infection, or kidney failure.