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Abstract: 114-2

114-2

Optimizing Radiation Dose in Pediatric Radiography: A Study on Dose-Area Product and Technique Adjustments

Authors:
Paula Vosiak (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Akemi Yagui (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Hugo Schelin (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Priscila Resmer (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Bruno Pedrazzani (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Adriano Legnani (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Rosiane Mello (FPP - Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil) ; Sergei Paschuk (UTFPR - Federal University of Technology - Paraná, Brazil) ; Valeriy Denyak (UTFPR - Federal University of Technology - Paraná, Brazil) ; Helen Khoury (UFPE - Federal University of Pernambuco, Recife, Brazil)

Abstract:

Optimizing Radiation Dose in Pediatric Radiography: A Study on Dose-Area Product and Technique Adjustments

P. Vosiak1, A. Yagui1, H. Schelin1, P. Resmer1, B. Pedrazzani1, A. Legnani1, R. Mello1, S. Pachuk2, V. Denyak2, H. Khoury3

1Pelé Pequeno Principe Research Institute, Pequeno Principe Faculty, Brazil

2Federal University of Technology - Paraná, Brazil

3Federal University of Pernambuco, Recife, Brazil

e-mail: schelin2@gmail.com

Human exposure to radiation during medical procedures constitutes a significant portion of total radiation exposure, surpassed only by natural radiation. The pediatric population is particularly vulnerable due to its advanced stage of anatomical and physiological development. However, justifications for these exposures are often insufficiently considered or do not exist at all [1]. The objective of the present study is to analyze radiation doses in pediatric patients undergoing radiological examinations of the skull and facial sinuses, considering the presence of regions sensitive to radiation, such as the lens. The Dose-Area Product (DAP) values were used as the dose magnitude and were obtained directly from the equipment monitor. The results showed a slightly discrepant variation in relation to the change in radiographic technique values, which do not correspond to the variation in the thickness of the patients' heads. Thickness analysis indicated that new technical values can be suggested based on skull thickness ranges, as opposed to the common age or weight ranges. The standardization used by the data collection site, despite being aimed at the pediatric population, presents values that differ from those considered within the radiation dose reference levels. The equipment used is digital, and the team used the radiation grid in all exams, disregarding the recommendation to remove the grid for pediatric exams. In the present work, we propose the application of calculated techniques aimed at reducing radiation exposure in pediatric patients.

Acknowledgement: This work was supported by the Brazilian agencies: Comissão Nacional de Energia Nuclear (CNEN), Fundação Araucária and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).

Keywords:
 Pediatric radiology, Skull Radiography, Facial Sinuses Radiography, Radiation dose, Dose-Area Product (DAP)