Patient: It’s been 2 months since my labs and ECG were normal, but my local doctor said I need to have an imaging to determine if I have coronary artery disease, but my local doctor said this machine is not allowed, and I can only have an imaging. Cardiovascular specialists: Because the description of the disease is incomplete, the complaints are not clear, now only for coronary angiography and 64-row CT examination of the advantages and disadvantages of the diagnosis of coronary heart disease to give a reply, hope to help, personal opinion, for reference only! Advantages of coronary angiography: It can clarify the scope and degree of lesions, provide a basis for choosing treatment methods (surgery, intervention, drugs) and assess the risk, and can be used for interventional treatment as needed. Disadvantages: requires hospitalization, invasive examination, complex operation, expensive, certain complications, cannot understand the situation outside the coronary arteries. Advantages of 64-row CT examination: short examination time, no trauma; high safety, no side effects; simple procedure, no hospitalization required; high accuracy, accurate understanding of coronary artery lesion site and degree of stenosis, early detection of lesions, can understand the site and area of myocardial infarction. The examination indications are very wide and can also detect lesions outside the coronary arteries; the cost is low, only 1/6 of the cost of other conventional examination methods. disadvantages: high requirements for the patient’s heart rate.