The research of radiation dose of 18F-FDG to PET/CT related personnel

Objective To measure the personal radiation dose for medical staff in PET/CT center and to offer the reference data for clinical radiation protection. Methods Apply TLD methods to monitor the radiation workers’ dose of 2 PET/CT center in Shandong Province. Chest dosimeter for body, lens dosimeter for eyes and ring dosimeter for fingers during distribution and injection. Results Higher dose of the procedures are distribution, injection, positioning, drug preparation and scanning in descending order. Eye dose are 0.38 mSv/a and 0.27 mSv/a for distribution and injection; finger dose are 43.90 mSv/a and 17.75 mSv/a for distribution and injection. The average dose for one scanning can be calculated by workload. Conclusion Under the workload in the research, the doses received by staff members do not exceed the annual limit for professional persons. When the workload is dramatically higher per year, the dose may exceed the national radiation safety standards (GBSS) on occupational annual dose limit. Key words: Positron-emission tomography; Tomography, X-ray computed; Radiation dosage; Radiation protection; Fluorodeoxyglucose F18