The examination time of enhanced CT depends on the examination parts and examination items of enhanced CT, as follows: 1. Single-site CT: If only single-site enhanced CT is performed, commonly for the chest or upper abdomen, the time is not long, about 10-15 minutes to complete. 2. Multi-site CT: If multi-site enhanced CT is done, such as chest plus whole abdomen, the time will The examination time of chest plus whole abdomen enhanced CT will be 15-20 minutes. If you do a vascular enhancement CT, the time will be relatively longer than other parts.