CT of the abdomen, including both upper and lower abdominal areas. If a full abdominal enhancement CT is done, the cost of the examination is about 800 RMB. It is also necessary to inject contrast agent, and a bottle of ordinary contrast agent is about 400 yuan, so the overall cost is about 1200 yuan. To have an abdominal enhancement CT, the patient is required to have an empty stomach one meal before the examination, and the patient needs to prepare a bottle of mineral water before the examination. If the patient is allergic to iodine contrast agent or has severe hyperthyroidism, these two conditions are contraindications and enhanced CT cannot be done. if the patient’s heart circulation function and kidney function are not good, the patient needs to do it with caution. Patients taking metformin medication need to stop taking the medication for 48 hours before they can do enhancement examinations.