| Ma Ruiyao,Qiu Rui,Ren Li,Wu Zhen,Hu Ankang,Li Junli,Li Chunyan,Liu Haikuan,Zhuo Weihai.Dose estimation of X-ray radiography based on Chinese pediatric reference phantoms[J].Chinese Journal of Radiological Medicine and Protection,2021,41(5):363-367 |
| Dose estimation of X-ray radiography based on Chinese pediatric reference phantoms |
| Received:December 17, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.05.008 |
| KeyWords:Pediatric phantom X-ray radiography Monte Carlo Radiation dose |
| FundProject:国家自然科学基金（11875036） |
| Author Name | Affiliation | E-mail | | Ma Ruiyao | Key Laboratory of Particle & Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China | | | Qiu Rui | Key Laboratory of Particle & Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China | qiurui@tsinghua.edu.cn | | Ren Li | Nuctech Company Limited, Beijing 100084, China | | | Wu Zhen | Nuctech Company Limited, Beijing 100084, China | | | Hu Ankang | Key Laboratory of Particle & Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China | | | Li Junli | Key Laboratory of Particle & Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China | | | Li Chunyan | Nuctech Company Limited, Beijing 100084, China | | | Liu Haikuan | Institute of Radiation Medicine, Fudan University, Shanghai 200032, China | | | Zhuo Weihai | Institute of Radiation Medicine, Fudan University, Shanghai 200032, China | |
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| Abstract:: |
| Objective The Chinese pediatric mesh-type reference phantoms were developed and applied in the dose assessment of X-ray radiography. Methods The 5- and 10-year-old Chinese pediatric mesh-type reference phantoms were developed based on the CT data. Based on the phantoms, the Monte Carlo method was applied to simulate the X-ray radiography to calculate the organ dose conversion coefficient and the effective dose conversion coefficient in different radiography conditions. Results The 5- and 10-year-old Chinese pediatric mesh-type reference phantoms were developed, and the physical parameters were consistent with the national standard. The differences of the organ mass between the established phantoms and reference data were within 2%. The database of the pediatric chest posteroanterior projection and abdominal anteroposterior projection,tube voltage 60-90 kVp, total filtration 2.5~4 mmAl were simulated, and the difference between the effective dose conversion factor and the literature result was within 3%. Conclusions The established Chinese pediatric mesh-type reference phantoms can be applied in the studies of radiation protection and clinical medicine and their result can provide an important reference for the dose assessment of the pediatric X-ray radiography. |
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