A parametric study of occupational radiation dose in interventional radiology by Monte-Carlo simulations
This paper presents the results of a parametric study on the occupational exposure in interventional radiology to explore the influence of various variables on the staff doses. These variables include the angiography beam settings: x-ray peak voltage (kVp), added copper filtration, field diameter, b...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/335023 |
| Acceso en línea: | https://hdl.handle.net/2117/335023 https://dx.doi.org/10.1016/j.ejmp.2020.08.016 |
| Access Level: | acceso abierto |
| Palabra clave: | Medical radiology Monte Carlo method Personal dosimetry Interventional radiology Monte-Carlo simulations Regression analysis Radiologia mèdica Montecarlo, Mètode de Àrees temàtiques de la UPC::Física Àrees temàtiques de la UPC::Física::Electromagnetisme |
| Sumario: | This paper presents the results of a parametric study on the occupational exposure in interventional radiology to explore the influence of various variables on the staff doses. These variables include the angiography beam settings: x-ray peak voltage (kVp), added copper filtration, field diameter, beam projection and source to detector distance. The study was performed using Monte-Carlo simulations with MCNPX for more than 5600 combinations of parameters that account for different clinical situations. Additionally, the analysis of the results was performed using both multiple and random forest regression to build a predictive model and to quantify the importance of each variable when the variables simultaneously change. Primary and secondary projections were found to have the most effect on the scatter fraction that reaches the operator followed by the effect of changing the x-ray beam quality. The effect of changing the source to image intensifier distance had the lowest effect. |
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