Coronary artery disease. Coloured 3D computed tomography (CT) angiogram of the view from the root of the aorta (main body artery) where it enters the heart, showing a calcified plaque (white, right of centre) blocking a coronary artery. Coronary artery disease (CAD) is a condition affecting the coronary arteries that supply blood to the heart muscle. If these arteries become blocked or narrowed, this can cause a heart attack (myocardial infarction).
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