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Measuring radiation exposure of operators engaged in the yttrium-90 microsphere radioembolization treatment of hepatocellular carcinoma patients

 Jina Shim  ;  Gyoung Min Kim  ;  Do Young Kim  ;  Mi Jin Yun  ;  Soo Hyun Seo  ;  Jong Yun Won  ;  Youngjin Lee 
 OPTIK, Vol.243 : 167392, 2021-10 
Journal Title
Issue Date
Radiation exposure ; Yttrium-90 ; Radiation calculations ; Radiation monitoring
To validate the radiation safety norms for radiation operators, their exposure to radiation during the yttrium-90 radioembolization treatment of 20 hepatocellular carcinoma patients was measured and evaluated. The mean radioactivity of yttrium-90 used was 2.15 GBq, and the survey meter was placed between the radionuclide source and catheter at a distance of 50 cm. The radiation dose during fluoroscopy was measured for comparison. In addition, the total accumulated exposure to a radiation operator during a treatment was calculated. The results indicated that the mean radiation exposure during fluoroscopy was 459 μSv/h. The mean radiation exposures from the patient after the injection of yttrium-90 were 5.66 μSv/h at 1 min, 5.99 μSv/h at 3 min, 3.97 μSv/h at 5 min, 2.35 μSv/h at 10 min, and 1.98 μSv/h at 1 min. The total calculated accumulated radiation exposure to a operator during the treatment was 0.73 μSv. In conclusion, the radiation exposure to the administering operator was within the safe exposure range.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Gyoung Min(김경민) ORCID logo https://orcid.org/0000-0001-6768-4396
Kim, Do Young(김도영)
Won, Jong Yun(원종윤) ORCID logo https://orcid.org/0000-0002-8237-5628
Yun, Mi Jin(윤미진) ORCID logo https://orcid.org/0000-0002-1712-163X
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