| Zhao Hongfeng,Yue Baorong,Xue Xian.Assessment of the hand dose to occupational staff in five procedures of interventional radiology[J].Chinese Journal of Radiological Medicine and Protection,2019,39(4):303-308 |
| Assessment of the hand dose to occupational staff in five procedures of interventional radiology |
| Received:May 15, 2018 |
| DOI：10.3760/cma.j.issn.0254-5098.2019.04.010 |
| KeyWords:Interventional radiology Hand Dose Thermoluminescence ring dosimeter Dose equivalent |
| FundProject: |
| Author Name | Affiliation | | Zhao Hongfeng | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Beijing 100088, China | | Yue Baorong | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Beijing 100088, China | | Xue Xian | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Beijing 100088, China |
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| Abstract:: |
| Objective To estimate the hand dose of occupational staff in five procedures of interventional radiology. Methods The thermoluminescence ring dosimeter(TLD, LiF:Mg, Ti)calibrated in dose equivalent Hp(0.07) was used to monitor the radiation dose to the both hands in five procedures of interventional radiology in four hospitals. Meanwhile,the tube voltage and current and the fluoroscopy time,accumulated doses,DAPs (Dosed-Area Product) and photographic frames were also recorded for statistical analysis(SPSS 18.0). Results In this study, five interventional procedures were monitored in 119 cases. The doses to the left and right hands of occupational personnel in the five interventional procedures were analyzed,and the difference was statistically significant (t=1.99,P< 0.05). The differences in the dose to the left hand and the right hand of the first operator with different interventional procedures were statistically significant (F=455.83,116.45, P<0.01). Tube voltage, current,fluoroscopy time, and photographic frames in influence factor analysis were statistically significant (r=0.570, 0.712, 0.564, 0.711, P<0.05), indicating that four factors might affect the operator's hand doses. In addition, increasing these four factors directly led to increase in the operator's hand doses. The variables with statistical significance in the above single factor analysis were introduced into the multiple linear regression equation and the stepwise regression method was used to fit the equation. The fitting equation was y=225.763+1.862x1-98.125x2(F=22.726, P<0.05). Where, x1 was the fluoroscopy time and x2 was the photographic frames which showed that they were the main factors affecting the hand dose. Conclusions The dose to the hands of the primary operator was the highest, followed by the second operator,the assistant or nurses.The order of average doses to the hands of the primary operator was PM > RFA > CA > PTCA+PCI > ITCA in the five procedures.The annual equivalent dose to primary operator's hands may exceed the dose limit for hands in practicing large amount of the PM procedures. |
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