Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Evaluation of the Apron Effectiveness during Handling Radiopharmaceuticals in PET/CT Work Environment

PET/CT 업무 환경에서 선원 취급 시 Apron의 실효성 평가

  • Cho, Yong-In (Dept. of Nuclear Medicine, Dongnam Institute of Radiological & Medical Sciences Cancer Center) ;
  • Ye, Soo-Young (Dept. of Radiological Science, College of Health Science, Catholic University of Pusan) ;
  • Kim, Jung-Hoon (Dept. of Radiological Science, College of Health Science, Catholic University of Pusan)
  • 조용인 (동남권 원자력의학원 핵의학과) ;
  • 예수영 (부산가톨릭대학교 보건과학대학 방사선학과) ;
  • 김정훈 (부산가톨릭대학교 보건과학대학 방사선학과)
  • Received : 2015.06.28
  • Accepted : 2015.09.01
  • Published : 2015.09.30
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Abstract

Health professionals in nuclear medicine were known that they get high radiation exposure. To reduce radiation exposure, using shielding materials is needed. In this study, we analyzed the shielding effect about apron during 18F-FDG treatment by using simulation based on Monte Carlo techniques and actual measurement. As a result, absorbed dose distribution of organ varies with handling position of the source. Dose reduction ratio by lead thickness of apron tended to decease, when handling position of the source come close to organ and away from radiation source for simulation. In the case of actual measurement with the dosimetry device, It showed that mean spatial dose distribution was different due to characteristics of dosimetry device. However, spatial dose rate was exponentially reduced according to distance with increasing lead content.

핵의학 종사자는 PET/CT 업무 환경 중 방사성 의약품 취급 시 상당히 높은 피폭선량을 받는다고 알려져 있으며, 이를 최소화하기 위해 적절한 차폐기구의 사용이 요구된다. 이에 본 연구에서는 몬테카를로 기법을 기반으로 한 모의실험과 실측을 통해 18F-FDG 선원 취급 시 Apron 착용에 대한 차폐효과에 대해 분석하였다. 그 결과, 모의실험의 경우 선원의 취급 위치에 따라 인체 장기별 선량 분포가 각각 다른 양상을 나타냈고, Apron 납 두께별 선량 감소율은 선원과 장기와의 위치가 근접할수록, 선원과의 접촉 거리가 멀수록 낮은 경향을 나타냈다. 선량 측정 장비를 통한 실측의 경우, 측정 장비간 특성으로 인해 평균 공간 선량률 분포는 상이한 결과를 보였으나, 거리별 납 당량의 증가에 따라 지수함수분포로 공간 선량률이 감소되었다.

Keywords

References

  1. Pant, G. S., Senthamizhchelvan S. : Radiation Exposure to Staff in a PET/CT Facility, Indian Journal of Nuclear Medicine, 21(4), 100-103, 2006
  2. Roberts, F. O., Gunawardana, D. H., Pathmaraj, K., et al.: Radiation Dose to PET Technologists and Strategies to Lower Occupational Exposure, Journal of Nuclear Medicine Technology, 33(1), 44-47, 2005
  3. Oramed Project, Version : 18, Guidelines for Reducing Dose to The Hands during Standard Nuclear Medicine Procedures, 2011
  4. Junchul Park, Sungjae Pyo : Study of External Radiation Expose Dose on Hands of Nuclear Medicine Workers, Journal of Korean Society of Radiological Technology, 35(2), 141-149, 2012
  5. 전자의료기기기준규격 : 식품의약품안정청고시 제 2007-83호, 2007
  6. Myeonghwan Park, Deokmoon Kwon: Measurement of Apron Shielding Rate for X-ray and Gamma-ray, Journal of Korean Society of Radiological Technology, 30(3), 245-250, 2007
  7. Smart, Richard : Task-specific Monitoring of Nuclear Medicine Technologists' Radiation Exposure, Radiation Protection Dosimetry, 109(3), 201-209, 2004 https://doi.org/10.1093/rpd/nch301
  8. Leide-Svegborn, S. : Radiation Exposure of Patients and Personnel from a PET/CT Procedure with 18F-FDG, Radiation Protection Dosimetry, 139(1-3), 208-213, 2010 https://doi.org/10.1093/rpd/ncq026
  9. Donggun Jang, Sangho Lee, Hyungseok Choi, et al : A Study on The Apron Shielding Ratio According to Electromagnetic Radiation Energy, Journal of Korean Society of Radiological Technology, 37(4), 247-252, 2014
  10. Yonghyun Chung, Cheolha Beak, and Seungjae Lee : Monte Carlo Simulation Codes for Nuclear Medicine Imaging, Nucl. Med. Mol. Imaging. 42(2), 127-136, 2008
  11. KS P 규격 : 진료용 X선 방호 앞치마, KS 6023, 2007
  12. Dongyeon Lee : Dose Evaluation of Childhood Leukemia Using The Compensators in The TBI. Master's degree, Majoring in Radiological Science, Graduate School of Life Science, Catholic University of Pusan, 2014
  13. Seongwook Lee, Seunghyun Kim, Bonggeun Ji et al.: A Consideration of Apron's Shielding in Nuclear Medicine Working Environment, Korea Society of Nuclear medicine Technology, 18(1), 110-114, 2014
  14. Sans-Merce, M., Ruiz, N., Barth, I., et al.: Recommendations to Reduce Hand Exposure for Standard Nuclear Medicine Procedures, Radiation Measurements, 46(12), 1330-1333, 2011 https://doi.org/10.1016/j.radmeas.2011.07.011
  15. Carnicer, A., Ginjaume, M., Duch, M.A., et al.: The Use of Different Types of Thermoluminescent Dosimeters to Measure Extremity Doses in Nuclear Medicine, Radiation Measurements, 46(12), 1835-1838, 2011 https://doi.org/10.1016/j.radmeas.2011.06.047
  16. Blunck, C., Becker, F. and M. Urban : Simulation of Beta Radiator Handling Procedures in Nuclear Medicine by Means of a Movable Hand Phantom, Radiation Protection Dosimetry, 144(1-4), 497-500, 2011 https://doi.org/10.1093/rpd/ncq329
  17. Boram Lee : Dose Evaluation of Selective Collimation Effect in Cephalography by Measurement and Monte Carlo Simulation, Master's degree, Majoring in Radiological Science, Graduate School of Korea University, 2010
  18. Wanghui Lee, Sungmin Ahn : Evaluation of Reductive Effect of Exposure Dose by Using Air Gap Apron in Nuclear Medicine Related Work Environment, The Korea Contents Association, '14, 14(12), 2014