title: Radiation protection for accompanying person and radiation workers in PET/CT.
abstract: The purposes of the present study are to measure the total radiation doses for the radiation workers and for the accompanying person to the patients in positron emission tomography (PET)/computed tomography (CT) imaging. Urines samples from the patients were collected at 43, 62, 87, 117, 238, 362 min after the 555-MBq (18)flour-fluorodeoxyglucose ((18)F-FDG) injection and activities were measured. Dose rates were recorded using a Geiger-Muller counter and the total radiation doses were measured with using an electronic personnel dosemeter. According to the results here, 18.4 % of (18)F-FDG was excreted in the urine in 117 min after injection. At 117th min after injection, dose rates were determined as 345, 220, 140, 50 and 15 µSv h(-1), at proposed distances. The radiation doses after 117 min were measured as 3.92 mSv at 0.1 m, 2.11 mSv at 0.25 m and 1.08 mSv at 0.5 m. In conclusion, radiation protection will be sufficient within 2 h after (18)F-FDG injection for PET/CT imaging in daily practice.
authors.affiliation: Cerrahpasa Medical Faculty, Department of Nuclear Medicine, Istanbul University, Istanbul, Turkey. demirm@istanbul.edu.tr
authors.forename: Mustafa
authors.initials: M
authors.lastname: Demir
authors.forename: Bayram
authors.initials: B
authors.lastname: Demir
authors.forename: Haluk
authors.initials: H
authors.lastname: Sayman
authors.forename: Sait
authors.initials: S
authors.lastname: Sager
authors.forename: Asm
authors.initials: A
authors.lastname: Sabbir Ahmed
authors.forename: Ilhami
authors.initials: I
authors.lastname: Uslu
mesh_terms: D000328:Adult; D000368:Aged; D019788:Fluorodeoxyglucose F18 / Q000009:adverse effects* / Q000652:urine; D033062:Friends; D006801:Humans; D008875:Middle Aged; D064847:Multimodal Imaging / Q000009:adverse effects*; D016273:Occupational Exposure / Q000009:adverse effects*; D049268:Positron-Emission Tomography; D011829:Radiation Dosage; D011835:Radiation Protection; D011874:Radiometry; D019275:Radiopharmaceuticals / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18