1. Coronary CT examination can detect coronary artery disease, coronary CT can clearly see the lesions of coronary arteries, and then combined with the patient’s clinical symptoms, electrocardiogram performance, etc., can determine the severity of the patient’s condition, and clarify the treatment plan. 2. Coronary CT imaging can also detect coronary artery disease. 3. Both coronary CT imaging and coronary CT examination play a positive role in the prevention, treatment and prognosis of coronary heart disease. Note that there are some indications and contraindications for both types of examinations, and it is recommended that the attending physician explain the details to the patient before the examination and choose as appropriate. Specific diagnosis and treatment need to comply with medical advice.