Pet CT is a kind of imaging examination equipment, which is the most advanced equipment at present.It is a combination of Pet and CT, which uses the same processor to complete the inspection.Pet CT examination has the function of both Pet and CT and achieve the purpose of the 1 + 1 > 2 at the same time.Pet CT examination can check the disease from molecular level to, found small tumor lesions in early. It can be found when patients don't have any symptoms , it is the greatest time for the treatment of patients, half a year earlier than other ordinary inspection found lesions.What patient information can Pet CT scan provide?Pet CT can scan the whole body at one time and fully understand the patient's condition.It can judge whether lesions in patients with metastatic, determine the patient's clinical staging and guide to Develop treatment options, evaluation of treatment efficacy, monitoring recurrence, monitoring whether the recurrence etc. This information has important value in the treatment of tumor diseases.