Discover the differences between angiography and angiogram procedures, how they help assess cardiovascular health, and which may be right for your needs. Angiography is a diagnostic procedure that visualizes blood vessels to detect blockages or abnormalities. Before the procedure, patients undergo assessments, fasting, and medication adjustments. During angiography, a catheter is inserted, contrast dye is injected, and X-rays are taken. Post-procedure care involves monitoring, rest, hydration, and avoiding strenuous activities. An angiogram test reveals blood vessel narrowing in different parts of the body. Learn when providers perform them and who needs repeat angiograms. An angiography, also known as an angiogram , is an X-Ray test that makes use of a dye along with a camera in order to take clear pictures of the circulation of blood inside a vein or an artery. This procedure can be performed for the veins or the arteries of the chest, back, arms, head, belly and the legs. The most common angiograms include pulmonary angiogram (of the chest), coronary angiogram (of the heart), cerebral angiogram (of the brain), carotid angiogram (of the neck and the head ...