In case of emergency CT, if the condition is serious and the emergency department opens a green channel, the radiology department will usually issue a report as fast as possible, within 10 minutes at the earliest, but it must depend on the part to be examined, the number of parts to be examined, and the complexity of the condition. If a single part is examined, it is usually faster to read the report, and the radiologist can issue the report within 10 minutes, but if there are many parts examined, such as CT of the head, neck, chest and abdomen of some trauma patients, the time to issue the result will be relatively long, because there are usually hundreds of CT films for each part. If there are 5-6 parts, there are more than 1000, there must be a period of time to look at them slowly, maybe half an hour to be able to produce the results.