How big is CT radiation?

Brain CT radiation dose is not large, should be equivalent to do a chest radiograph, is to take a chest radiograph radiation dose. Chest radiograph in the usual physical examination process can often take, this radiation dose is not much. When acute brain lesions are manifested, such as brain tumor surgery or cerebral hemorrhage surgery, or thrombolytic therapy or arterial stenting for ischemic cerebrovascular disease, regular follow-up and CT should be performed after surgery. It is possible to do a CT in 1-2 days. This amount of radiation is tolerable by the human body, so there is no need to worry.