Angiography: Cost, Procedure, Preparation, Risks & Recovery Guide An Angiography test is a essential diagnostic method used to visualize the vascular system of the entire body including the heart and brain. It is used by doctors to identify obstructions, aneurysms, or other vascular abnormalities that may pose serious health risks. https://www.diigo.com/item/note/b1gr9/05a3?k=0e855ff4f00612b60808a7901abc4dff