Pet-CT center started its operation of the PET-CT (2 pieces) for the first time in the southern part of Korea and the PET-CT, which is the latest model, has shortened photographing time with the use of LSO. It can perform early diagnosis of various cancers and its metastasis, the effectiveness of anticancer drug and reoccurrence of cancer after its treatment. Our cancer center has made considerable improvements with early diagnosis, the effectiveness of medical treatment and the prevention of cancer recurrence after initial treatment, making effective use of the Cyclotron.