Coronary angiography is a test used to visually display the insides of your arteries. During the coronary angiography procedure dye and x-rays are used to show the arteries that supply blood to your heart and any signs of coronary heart disease (CHD).
Plaque build-up can be found on the inside walls of the coronary arteries, ultimately causing the arteries to narrow. This is referred to as coronary heart disease or coronary artery disease.
Coronary heart disease can prevent blood from flowing to your heart and can lead to angina, also known as chest pain/chest discomfort.