Radiation Safety Process for the Patient and People Around during Diagnostic Radionuclide Studies

Aras, Feray; Kıraç, Suna; Ayan, Aslı; Demır, Mustafa; Dönmez, Semra; Günalp, Bengül; Ince, Mehmet; Kovan, Bilal; Köseoğlu, Kamil; Özaslan, İnci Alıç; Poyraz, Leyla; Toklu, Türkay; Uysal, Bağnu; Yeyin, Nami

doi:10.4274/nts.024

Cited by 1 publication

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“…The effective dose in caregivers or those who come for a patient visit has been reported not to exceed 5 mSv during diagnosis and treatment. In addition, it has also been explained that patient-induced dose exposure should not exceed 1 mSv for pregnant women and children (9).…”

Section: Discussionmentioning

confidence: 99%

“…This is also important for the hospital staff working in the services of the patients as well as staff working in the nuclear medicine clinics. It has been reported that if the patient transfers are performed with the same personnel, the personnel will be exposed to 0.1 mSv/month radiation because the distance between the staff in charge of transporting the inpatients to the relevant services and the patient is very low (9). In another study, it was suggested that the hospital staff accompanying the patient or the patient's relative should (20).…”

Section: Discussionmentioning

confidence: 99%

“…The effective dose exposure of patients and those around them during diagnostic tests in nuclear medicine has been reported in national and international studies (9). In our country, according to the Turkish Atomic Energy Authority (TAEK) Law (No 2690), TAEK department of radiation health and safety implements the tasks, given by this law, concerning the services related to licensing, determination of the regulations and principles, and safe use of ionizing radiation and radioactive substances (10).…”

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confidence: 99%

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The Evaluation of External Dose Rate Measurements of Patients During and After F-18 FDG PET/CT Imaging and Appropriate Discharge Time from PET/CT Department

Güneş¹,

Erez²,

Gündoğan³

et al. 2019

Istanbul Med J

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Introduction: F-18 radioisotope has higher photon energy when compared with other radioisotopes that are preferred in conventional imaging procedures in nuclear medicine. The aim of this study was to measure external radiation dose rate from patients injected with F-18 fluorodeoxyglucose (FDG) and to determine appropriate discharge time after F-18 FDG positron emission tomography/computed tomography (PET/CT) procedure. Methods: Our study included 29 (M/F=9/20) patients who were referred to nuclear medicine department for F-18 FDG PET/CT imaging. Dose rates were measured at a distance of 0, 0.5, 1, 1.5 and 2 m from patients via Geiger-Müller probe at 3 different time points: 1) Just after the intravenous injection of F-18 FDG, 2) before PET/CT imaging and 3) just before discharge of patients from PET/CT department. Statistical analysis was performed to evaluate the differences between measurements. Results: Patients were injected 291±62 megabecquerel (MBq) (range: 226-440 MBq) F-18 FDG via IV route. The patients stayed in nuclear medicine department for 70.3±13.8 min (range: 53 min-100 min) after injection of F-18 FDG. Radiation dose velocity measurements taken at a distance of 1 meter were 39.7±11.9 µSv/h just after the injection, 21.1±4.5 µSv/h before PET/CT examination and 14.3±2.9 µSv/h just before discharge. Conclusion: Although F-18 has high photon energy, its halflife is relatively short and this makes F-18 FDG an ideal radiopharmaceutical for PET/CT imaging. When the PET/CT scan is terminated, the dose rate measurements of the patients at a distance of 1 m are appropriate for discharge according to Turkish Atomic Energy Authority regulations. Therefore, patients can be safely discharged by explaining the necessary radiation safety measures after completing F-18 FDG PET/CT imaging.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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