The most common form of heart disease is coronary artery disease. Narrowing of the arteries that supply blood to the heart (coronary arteries) results in insufficient blood delivery to the heart muscle. This will often lead to decreased exercise capacity, symptoms such as chest discomfort, or premature death (heart attack).
The diagnosis is typically made by noninvasive stress testing or cardiac imaging such as Echocardiograms, Nuclear MRI and PET scans. However, the gold standard for diagnosis is an invasive procedure called cardiac catheterization.