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KMID : 0357520190420030209
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Journal of Radiological Science and Technology
2019 Volume.42 No. 3 p.209 ~ p.215
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Comparison of the Equivalent Dose of the Lens Part and the Effective Dose of the Chest in the PET/CT Radiation Workers in the Nuclear Medicine Department
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Son Sang-Joon
Park Jeong-Kyu
Jeong Dong-Kyung
Park Myeong-Hwan
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Abstract
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Comparison of the effective dose of the chest and the equivalent dose of the lens site in the radiation workers working at four medical institutions with the PET / CT room located in one metropolitan city and province from April 1 to June 30, 2018 Respectively. Radioactive medicine were measured at the time of dispensing and at the time of injection. In this experiment, the average dispensing time per patient was 5.7 minutes and the average injection time was 3.1 minutes. The equivalent dose at the lens site was 0.78 μSv/h for 1 mCi, and the effective dose for chest was 0.18 μ Sv/h per 1 mCi. The equivalent dose at the lens site during injection was 0.88 μSv/h per mCi and the effective dose of chest was 0.20 μSv/h per mCi. The daily effective dose of the chest was 0.9±0.6 μSv and the equivalent dose of the lens site was 3.6±1.4 μSv during daily dosing for 20 days. The effective dose of the chest during the day was 0.6±0.5 μSv and the equivalent dose of the lens was 2.2±1.0 μSv. At the time of dispensing, the equivalent dose of the lens was 0.187±0.035 mSv, the effective dose of the chest was 0.137±0.055 mSv, the equivalent dose of the lens was 0.247±0.057 mSv, and the effective dose of the monthly chest was 0.187±0.021 mSv. As a result of the corresponding sample test, the equivalent dose and the effective dose of the chest, the effective dose of the chest, the effective dose of the chest, the effective dose of the chest, The equivalent dose of the lens and the effective dose of the chest were statistically significant (p<0.05) with a significance of 0.000. However, there was no statistically significant difference (p>0.05) between the equivalent dose and the effective dose of the chest, the equivalent dose of the lens at the time of injection, and the effective dose of the chest at 0.138 and 0.230, respectively.
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KEYWORD
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PET/CT room, Radiation worker, Equivalent dose of lens area, Effective dose of chest
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