Physical dosimetric reconstruction of a case of large area back skin injury due to overexposure in an interventional procedure  

作　　者：Yuchen Yin Xuan Wang Xianghui Kong Wenyue Zhang Yidi Wang Yuxuan Mao Jianwei Wang Tianhe Jia Yu Tu Bingjie Zhang Liang Sun 

机构地区：[1]State Key Laboratory of Radiation Medicine and Protection,School of Radiation Medicine and Protection,Soochow University,Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions,Suzhou 215123,China [2]Prevention and Treatment Center for Occupational Disease of Xinxiang City,Xinxiang,Henan 453003,China

出　　处：《Radiation Medicine and Protection》2022年第1期3-8,共6页放射医学与防护（英文）

基　　金：National Natural Science Foundation of China(No.12105200,12175161,U186720);Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions;Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),China;Nuclear Energy Development Project,China(No.2016-1295).

摘　　要：To estimate the physical dose of skin and key organs in a case of overexposure during a cardiac interventional procedure.Methods The female patient aged 50 suffered from owerexposure during ardiac interventional therapy in a hospital,Xinxiang city,Henan province,China in January 2020.The mesh-type phantom for the patient was constructed based on the adult mesh-type reference computational phantoms(MRCPs)released by the International Comission on Radiological Protection Publication 145 (ICRP145)and phantom deformation technology.Models of exposure scenario were constructed and simulated with particle and heavy ion transport code system(PHTTS)according to exposure conditions.Resuts:The maximum absorbed dose of key organs/tissues under iradiation in posteroanterior(PA)and 30°left anterior oblique directions(LOA)was 632.4 and 305.6 mGy,respectively.The let lung,heart,and left mammary gland received a larger dose under both iradiation conditions.The ratio of the absorbed dose with and without shielding was a lculated,and the relative difference in most organs was<1%between two directions.The iso-dose curve of the back skin revealed the ditribution of the absorbed dose(0.1-5.2 Gy).The dose estimate of key tssues/organs was higher than the conventional level,especially the local skin,up to 5.2 Gy.Concusions The interventional procedure in this ase resulted in a higher dose.Monte Carlo codes combined with the MRCPs can be employed to estimate physical dose to individuals in concrete irradia tion scenarios.

关 键 词：Physical dose Dose reconstruction Digital subtraction angiography Monte Carlo codes Particle and heavy ion transport code system (PHITS) Mesh-type phantoms 

分 类 号：R81[医药卫生—放射医学]