A coronary CT is recommended once every 2 to 3 years after the coronary angiography procedure. Coronary angiography is a test that shows the blood vessels of the heart by injecting contrast material through the radial artery to understand the severity of the lesion. It is usually sufficient to review the examination within 2 to 3 years after coronary intervention; patients with renal disease should be cautious when doing the imaging examination, the interval should be long, and reasonable assessment should be carried out again; after the first treatment intervention for acute myocardial infarction, the coronary artery CT can be examined one month later. In case of hypertension, hyperlipidemia and hyperglycemia, it is recommended to review the coronary artery CT at least 3 years according to the severity of the disease, and in case of sudden and severe angina pectoris or chest discomfort, it is necessary to decide whether to improve the coronary artery CT, or even coronary angiography, according to the results of auxiliary examinations and corresponding clinical symptoms in a timely manner. How often to do coronary CT examination after coronary angiography surgery, can consult the doctor, follow the doctor’s instructions for review.