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Advisor(s)
Abstract(s)
Introdução: Na Medicina, com o aumento dos procedimentos/exames de diagnóstico usando fontes de Radiação Ionizante, é de extrema importância o uso de equipamentos de Proteção Radiológica. Objetivos: Desenvolvimento dum protocolo de Controlo da Qualidade dos equipamentos de Proteção radiológica e elaboração de Guia de Boas Práticas. Avaliação da percentagem de atenuação dos equipamentos. Metodologia: O programa de Controlo da Qualidade e elaboração de Guia de Boas Práticas compreendeu quatro etapas: inventário/registo; três tipos de inspeção: visual, tátil e radiológica; estabelecimento de periodicidade de inspeção, e critérios de rejeição. Cálculo de atenuação da Radiação com leitura de dosímetros termoluminescentes expostos a diferentes intensidades, 60kVp, 90kVp e 121kVp, e comparando-os com valores simulados. Resultados: Analisaram-se 88 equipamentos de 4 unidades diferentes. Na inspeção visual, verificaram-se danos em 30 equipamentos, frequentemente nas bainhas e na pelicula externa. Na inspeção tátil, verificaram-se 22 equipamentos com danos em fechos, furos e vincos. Na inspeção radiológica, 27 equipamentos apresentaram dobras, vincos ou furos, com áreas entre 0.4mm2 - 604,1mm2. Foram aplicados os critérios de rejeição de Lambert e McKeon (2001) e Stam et al. (2008), verificando 2 equipamentos imediatamente inaptos e 17 equipamentos críticos. O estudo da atenuação, verificou que, variaram entre 83% e 100%, tendo elevada correlação dos valores experimentais e simulados. Conclusão: O Controlo da Qualidade dos equipamentos atesta e garante a conformidade e eficácia na Proteção Radiológica.
ABSTRACT - Introduction: In Medicine, with the increase in diagnostic procedures/examinations using ionizing radiation sources, the use of Radiation Protection equipment is of utmost importance. Objectives: Development of a quality control protocol for radiation protection equipment and the preparation of a Best Practice Guide. Verification of the attenuation percentage of the equipment. Methodology: The quality control program and the preparation of the Best Practice Guide consisted of four stages: inventory/registration; three types of inspection: visual, tactile, and radiological; establishment of inspection frequency and rejection criteria. Radiation attenuation was calculated using thermoluminescent dosimeters exposed to different intensities, 60kVp, 90kVp, and 121kVp, and comparing them with simulated values. Results: A total of 88 pieces of equipment from 4 different units were analyzed. In the visual inspection, damage was observed in 30 pieces of equipment, often on the seams and outer coating. In the tactile inspection, 22 pieces of equipment showed damage to fasteners, holes, and creases. In the radiological inspection, 27 pieces of equipment had folds, creases, or holes, with areas ranging from 0.4mm² to 604.1mm². The rejection criteria by Lambert and McKeon (2001) and Stam et al. (2008) were applied, finding 2 pieces of equipment immediately unfit and 17 pieces in critical condition. The attenuation study found that attenuation values ranged between 83% and 100%, showing a high correlation between experimental and simulated values. Conclusion: Quality control of the equipment certifies and ensures compliance and effectiveness in Radiation Protection.
ABSTRACT - Introduction: In Medicine, with the increase in diagnostic procedures/examinations using ionizing radiation sources, the use of Radiation Protection equipment is of utmost importance. Objectives: Development of a quality control protocol for radiation protection equipment and the preparation of a Best Practice Guide. Verification of the attenuation percentage of the equipment. Methodology: The quality control program and the preparation of the Best Practice Guide consisted of four stages: inventory/registration; three types of inspection: visual, tactile, and radiological; establishment of inspection frequency and rejection criteria. Radiation attenuation was calculated using thermoluminescent dosimeters exposed to different intensities, 60kVp, 90kVp, and 121kVp, and comparing them with simulated values. Results: A total of 88 pieces of equipment from 4 different units were analyzed. In the visual inspection, damage was observed in 30 pieces of equipment, often on the seams and outer coating. In the tactile inspection, 22 pieces of equipment showed damage to fasteners, holes, and creases. In the radiological inspection, 27 pieces of equipment had folds, creases, or holes, with areas ranging from 0.4mm² to 604.1mm². The rejection criteria by Lambert and McKeon (2001) and Stam et al. (2008) were applied, finding 2 pieces of equipment immediately unfit and 17 pieces in critical condition. The attenuation study found that attenuation values ranged between 83% and 100%, showing a high correlation between experimental and simulated values. Conclusion: Quality control of the equipment certifies and ensures compliance and effectiveness in Radiation Protection.
Description
Mestrado em Radiações Aplicadas às Tecnologias da Saúde - Área de especialização: Proteção Contra Radiações
Keywords
Proteção radiológica Radiação ionizante Equipamento de proteção radiológica Controlo da qualidade Protocolo Radiological protection Ionizing radiation Radiological personal protective equipment Quality control Protocol RATES
Citation
Cardoso IM. Contributo para a implementação de um protocolo de controlo da qualidade dos equipamentos de proteção radiológica, numa instituição hospitalar [dissertation]. Lisboa: Escola Superior de Tecnologia da Saúde de Lisboa/Instituto Politécnico de Lisboa; 2024.
Publisher
Instituto Politécnico de Lisboa, Escola Superior de Tecnologia da Saúde de Lisboa