Angiography, also known as an angiogram, is a medical imaging procedure performed using a special contrast agent to make blood vessels more clearly visible in X-ray images. This procedure aims to evaluate blood flow in detail to detect possible blockages, narrowings, or other abnormalities in arteries or veins. Specialist doctors use angiography to determine the cause of vascular problems in the heart, brain, kidneys, legs, or other body regions and to plan appropriate treatment strategies.