중재적 방사선시술에서 부가 차폐체 사용 시 종사자의 산란선 피폭 감소효과
Effect of Reducing Scattering Radiation Exposure of Medical Staffs When Additional Shielding is Used in Interventional Radiology
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This article is designed to look into the radiation exposure dose to each body part and the shielding effect for workers using an additional shielding to reduce their radiation exposured by scattering radiation which is generated in a space between the operating table and lead curtain during interventional radiology(IR) procedures. After placing a human phantom on the table of SIEMENS’ angiography machine, the following measurements were taken, depending on the presence of an additional shield of lead equivalent of 0.25 mmPb, manufactured for this purpose: dose to gonad, dose to an area where the personal dosimeter is placed, and dose to an area of eye lens is located. An ion chamber(chamber volume 1,800 cc) was utilized to measure scattering radiation. The two imaging tests were carried out as follows: fluoroscopy of the abdomen (66 kV, 100 mA, 60 seconds) and of the head (70 kV, 65 mA, 60 seconds); and digital subtraction angiography(DSA) of the abdomen (67 kV, 264 mA, 20 seconds) and of the head (79 kV, 300 mA, 20 seconds). In all the experiments, the shielding efficiency of the gonad position was the largest at 59.8%. In case an additional shielding was used as protection against scattering radiation that came through the operating table and the lead curtain during an IR, the radiation shielding efficiency was estimated to be up to 59.8%, leading to a conclusion that its presence may effectively reduce the radiation exposure dose of medical staffs.
Abstract
This article is designed to look into the radiation exposure dose to each body part and the shielding effect for workers using an additional shielding to reduce their radiation exposured by scattering radiation which is generated in a space between the operating table and lead curtain during interventional radiology(IR) procedures. After placing a human phantom on the table of SIEMENS’ angiography machine, the following measurements were taken, depending on the presence of an additional shield of lead equivalent of 0.25 mmPb, manufactured for this purpose: dose to gonad, dose to an area where the personal dosimeter is placed, and dose to an area of eye lens is located. An ion chamber(chamber volume 1,800 cc) was utilized to measure scattering radiation. The two imaging tests were carried out as follows: fluoroscopy of the abdomen (66 kV, 100 mA, 60 seconds) and of the head (70 kV, 65 mA, 60 seconds); and digital subtraction angiography(DSA) of the abdomen (67 kV, 264 mA, 20 seconds) and of the head (79 kV, 300 mA, 20 seconds). In all the experiments, the shielding efficiency of the gonad position was the largest at 59.8%. In case an additional shielding was used as protection against scattering radiation that came through the operating table and the lead curtain during an IR, the radiation shielding efficiency was estimated to be up to 59.8%, leading to a conclusion that its presence may effectively reduce the radiation exposure dose of medical staffs.
참고문헌 (16)
- Bor D, "Comparison of effective doses obtained from dose-area product and air kerma measurements in interventional radiology", The British Journal of Radiology, 77(916), pp.315~322 (2004)
- Avoidance of Radiation Injuries from Medical Interventional Procedures, , ICRP, ~, pp.ICRP Publication 85 (2000)
- "Radiation Protection Guidelines for Patient Dose Reduction in Interventional Radiation Procedures" (2014)[URL]
- Miller DL., "Society for Interventional Radiology. Interventional fluoroscopy: Reducing radiation risks for patients and staff", J Vasc Interv Radiol, 20(7), pp.S274~ (2009)
- Artschan RE, "An investigation of the radiation doses to the lower legs and feet of staff undertaking interventional procedures", Br J Radiol, 87(1038), pp.20130746~ (2014)
- Koenig AM, "Scatter radiation reduction with a radiation-absorbing pad in interventional radiology examinations", Eur J Radiol, 132(5), pp.109245~ (2020)
- Kim KP, "Occupational radiation doses to operators performing cardiac catheterization procedures", Health Phys, 94(3), pp.211~227 (2008)
- 김성환, "피폭선량저감 섬유의 개발과 CT 검사시 산란선 차폐 효과", 한국산학기술학회논문지, 14(4), pp.1871~1876 (2013), 한국산학기술학회[DOI]
- 윤철호, "방사선 종사자 근무 분야별 피폭에 관한 검토", 방사선기술과학, 31(3), pp.217~222 (2008), 대한방사선과학회
- Nowak M, "Characterisation and mapping of scattered radiation fields in interventional radiology theatres", Sci Rep, 10(1), pp.18754~ (2020)
- 한수철, "두경부 질환의 인터벤션 시술 시 시술자의 피폭선량평가를 위한 공간선량측정에 관한 연구", 방사선기술과학, 39(3), pp.323~328 (2016), 대한방사선과학회[DOI]
- Kang YM, "Changes in entrance surface dose in relation to the location of shielding material in chest computed tomography", Radiation Effects and Defects in Solids, 170(7-8), pp.645~650 (2015)
- Kim JH, "Comparison of worker exposure dose according to pulse rate change during TACE and analysis of spatial scattering dose distribution in laboratory", Journal of Korean Society of Cardio-Vascular Interventional Technology, 17(1), pp.137~144 (2014)
- Kim SC, "Physics of radiology", pp.123~126 (2009), Hanmi Medical Publishing
- Jang MS, "Comparison of patient's radiation dose according to whether or not collimation is used during TACE treatment", Journal of Korean Society of Cardio-Vascular Interventional Technology, 17(1), pp.151~155 (2014)
- 전미은, "방사선 중재적 시술 중 시술자의 피폭선량에 대한 연구", 방사선기술과학, 35(3), pp.219~226 (2012), 대한방사선과학회