Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers.

Angiography is a sort of x-ray that is done to image blood vessels in diverse parts of the body, including the heart, brain and kidneys. This is done to determine whether the vessels are diseased, tapering, blocked or engorged.