Medical irradiation risk assessment based on the data of radiation-hygienic passportization in the regions of the Russian Federation
This article is aimed at methodology development for collective risk assessment of medical irradiation, basing on results of radiation-hygienic passportization in the Russian Federation regions, i.e. using values of collective effective doses for big groups of medical technologies: photoroentgenogra...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev
2016-01-01
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| Series: | Радиационная гигиена |
| Subjects: | |
| Online Access: | https://www.radhyg.ru/jour/article/view/252 |
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| Summary: | This article is aimed at methodology development for collective risk assessment of medical irradiation, basing on results of radiation-hygienic passportization in the Russian Federation regions, i.e. using values of collective effective doses for big groups of medical technologies: photoroentgenography, roentgenography, roentgenoscopy, and computer tomography. Use of the effective dose concept for medical irradiation risk definition involves a number of essential restrictions. Age and sex of the employees and of general population (effective dose concept has been developed for these groups of people) may essentially differ from those in patients. Lifelong risk of stochastic effects occurrence in children is 2-3 times higher than the rating values used in effective dose concept, while for elderly people (about 60 years at irradiation time) it’s 4-5 times lower. The article suggests the algorithm of effective doses values correcting factors assessment for consideration of dependence of radiogenic cancer risk factors on age and sex. This enables to assess more correctly collective risk of radiology and nuclear medicine imaging. Since patients tend to be elderly and their risk factor is below the rating used in the effective dose concept, the values of these correcting factors for most radiology and nuclear medicine imaging are below one. Thus, in most cases, the effective dose concept leads to conservative assessment of medical irradiation collective risk. |
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| ISSN: | 1998-426X |