CT examination is a common examination method, which can be applied to a variety of parts and diagnose a variety of diseases. The specific examination process is as follows: 1. Patients go to the CT room with the CT examination application form issued by the clinician; 2. The number is assigned to the price at the registration window of the CT room, and outpatients are requested to handle the charges at the payment office; inpatients are recorded at the registration office of their department after the clinical nurse executes the clinical orders; 3. 3. Patients and accompanying persons wait for the examination at the waiting area and listen to the number calling system to call their own serial numbers; 4. Patients and family members cooperate with the technologist to place their bodies and complete the CT examination. During the operation, if additional scanning or enhancement is required, the examining physician should explain the situation to the patient and family members, obtain consent and sign for the execution, and make up the payment procedures according to regulations; 6.