Angiography is basically the medical imaging carried out by experts of the field who use this technique to have a visual understanding of the inside of the lumen of the blood vessels inside the body. This technique is particularly aimed at having a look at the organs like the arteries, veins, and other such chambers of the heart. Angiography is one of the main pre Identification of Artery Blockage to escape from a sudden heart attack. sadipscing no.