Engiography, often referred to as "angiography," is a medical imaging technique used to visualize the inside of blood vessels and organs, particularly to assess conditions related to the cardiovascular system. It involves the injection of a contrast dye into the bloodstream, followed by imaging methods such as X-ray or MRI to capture detailed images of the blood vessels. This procedure is crucial for diagnosing and treating various vascular diseases, including blockages and aneurysms.