Comparison of methods for calculating effective doses for children during CT examinations of the chest organs
Computed tomography is associated with high patient doses. CT is actively used for pediatric, however, currently there is no reliable data on the pediatric patient doses in the Russian Federation. The current study presents the data on the anthropometric characteristics of 5, 10 and 15-year-old pedi...
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Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev
2021-10-01
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| author | P. S. Druzhinina A. V. Pozdnyakov Yu. N. Kapyrina D. O. Ivanov Yu. V. Petrenko V. G. Puzyrev |
| author_facet | P. S. Druzhinina A. V. Pozdnyakov Yu. N. Kapyrina D. O. Ivanov Yu. V. Petrenko V. G. Puzyrev |
| author_sort | P. S. Druzhinina |
| collection | DOAJ |
| description | Computed tomography is associated with high patient doses. CT is actively used for pediatric, however, currently there is no reliable data on the pediatric patient doses in the Russian Federation. The current study presents the data on the anthropometric characteristics of 5, 10 and 15-year-old pediatric patients, as well as the results of a comparative assessment of the effective doses of these patients during CT-examinations of chest, considering their anthropometric data. The effective doses were calculated using three methods: based on the actual guidelines (MU 2.6.1.3584-19) using the age specific conversion coefficients; using the conversion coefficients considered patient body mass and effective diameter; using a specialized software NCICT 3.0. The difference between effective doses according to actual guidelines and considering patient body mass and effective diameter was about 7.1 % (max-65 %). High deviations were observed in patients with abnormally large or abnormally low body mass. Effective doses calculated using NCICT 3.0 were higher compared to doses calculated according to actual guidelines on average by 18 % (max — 53 %). Such differences are explained by the fact that in MU 2.6.1.3584-19 conversion coefficients are presented for the most common CT-scan parameters of protocols, and in NCICT 3.0 the calculation considers individual scan parameters for each patient. The difference between effective doses according to NCICT 3.0 and considering patient body mass and effective diameter was about 32 % (max-70 %). This difference can be explained by the differences in the anthropometric data of some patients, and by the use of different types of phantoms: a stylized phantom (Golikov et al) and a voxel phantom in NCICT 3.0. |
| format | Article |
| id | doaj-art-c29869adc8a441acbb6a75c5d012298b |
| institution | Kabale University |
| issn | 1998-426X |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev |
| record_format | Article |
| series | Радиационная гигиена |
| spelling | doaj-art-c29869adc8a441acbb6a75c5d012298b2025-08-20T03:43:50ZengSaint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. RamzaevРадиационная гигиена1998-426X2021-10-011439110010.21514/1998-426X-2021-14-3-91-100715Comparison of methods for calculating effective doses for children during CT examinations of the chest organsP. S. Druzhinina0A. V. Pozdnyakov1Yu. N. Kapyrina2D. O. Ivanov3Yu. V. Petrenko4V. G. Puzyrev5Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Federal Service for Surveillance on Consumer Rights Protection and Human Well-BeingSaint-Petersburg State Pediatric Medical UniversitySaint-Petersburg State Pediatric Medical UniversitySaint-Petersburg State Pediatric Medical UniversitySaint-Petersburg State Pediatric Medical UniversitySaint-Petersburg State Pediatric Medical UniversityComputed tomography is associated with high patient doses. CT is actively used for pediatric, however, currently there is no reliable data on the pediatric patient doses in the Russian Federation. The current study presents the data on the anthropometric characteristics of 5, 10 and 15-year-old pediatric patients, as well as the results of a comparative assessment of the effective doses of these patients during CT-examinations of chest, considering their anthropometric data. The effective doses were calculated using three methods: based on the actual guidelines (MU 2.6.1.3584-19) using the age specific conversion coefficients; using the conversion coefficients considered patient body mass and effective diameter; using a specialized software NCICT 3.0. The difference between effective doses according to actual guidelines and considering patient body mass and effective diameter was about 7.1 % (max-65 %). High deviations were observed in patients with abnormally large or abnormally low body mass. Effective doses calculated using NCICT 3.0 were higher compared to doses calculated according to actual guidelines on average by 18 % (max — 53 %). Such differences are explained by the fact that in MU 2.6.1.3584-19 conversion coefficients are presented for the most common CT-scan parameters of protocols, and in NCICT 3.0 the calculation considers individual scan parameters for each patient. The difference between effective doses according to NCICT 3.0 and considering patient body mass and effective diameter was about 32 % (max-70 %). This difference can be explained by the differences in the anthropometric data of some patients, and by the use of different types of phantoms: a stylized phantom (Golikov et al) and a voxel phantom in NCICT 3.0.https://www.radhyg.ru/jour/article/view/821computed tomographypediatric patientseffective dosesanthropometric characteristic |
| spellingShingle | P. S. Druzhinina A. V. Pozdnyakov Yu. N. Kapyrina D. O. Ivanov Yu. V. Petrenko V. G. Puzyrev Comparison of methods for calculating effective doses for children during CT examinations of the chest organs Радиационная гигиена computed tomography pediatric patients effective doses anthropometric characteristic |
| title | Comparison of methods for calculating effective doses for children during CT examinations of the chest organs |
| title_full | Comparison of methods for calculating effective doses for children during CT examinations of the chest organs |
| title_fullStr | Comparison of methods for calculating effective doses for children during CT examinations of the chest organs |
| title_full_unstemmed | Comparison of methods for calculating effective doses for children during CT examinations of the chest organs |
| title_short | Comparison of methods for calculating effective doses for children during CT examinations of the chest organs |
| title_sort | comparison of methods for calculating effective doses for children during ct examinations of the chest organs |
| topic | computed tomography pediatric patients effective doses anthropometric characteristic |
| url | https://www.radhyg.ru/jour/article/view/821 |
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