Risk management in radiation therapy with SEVRRA

Geórgia Santos Joana; Marcello Gomes Gonçalves; Camila Salata; Flávia Cristina Teixeira; Emmilly Sandrini; Guilherme Bittencourt; Helio Salmon; Leandro Fairbanks; Saulo Santos Fortes; Maria do Socorro Nogueira

doi:10.15392/bjrs.v6i3.549

Autores/as

Geórgia Santos Joana Pós-Graduação em Ciências e Técnicas Nucleares - DEN/UFMG, 31270-901, Belo Horizonte, MG, Brazil Comissão Nacional de Energia Nuclear - CNEN, 22290-901, Rio de Janeiro, RJ, Brazil
Marcello Gomes Gonçalves Comissão Nacional de Energia Nuclear - CNEN, 22290-901, Rio de Janeiro, RJ, Brazil
Camila Salata Comissão Nacional de Energia Nuclear - CNEN, 22290-901, Rio de Janeiro, RJ, Brazil
Flávia Cristina Teixeira Comissão Nacional de Energia Nuclear - CNEN, 22290-901, Rio de Janeiro, RJ, Brazil
Emmilly Sandrini Grupo COI, Clínicas Oncológicas Integradas, 22290-030, Rio de Janeiro, Brazil
Guilherme Bittencourt Oncoclínicas, 04536-132, São Paulo, Brazil
Helio Salmon Oncoclínicas, 04536-132, São Paulo, Brazil
Leandro Fairbanks Grupo COI, Clínicas Oncológicas Integradas, 22290-030, Rio de Janeiro, Brazil
Saulo Santos Fortes Oncologia Rede D’OR - Unidade Caxias, 25075-025, Rio de Janeiro, Brazil Instituto Nacional do Câncer José Alencar Gomes da Silva - INCA, 20230-130, Rio de Janeiro, Brazil
Maria do Socorro Nogueira Centro de Desenvolvimento de Tecnologia Nuclear - CDTN/CNEN, 31270-901, Belo Horizonte, MG, Brazil

DOI:

https://doi.org/10.15392/bjrs.v6i3.549

Palabras clave:

Linear Accelerator, Radiation Therapy, Risk Management, Risk Matrix, SEVRRA

Resumen

ABSTRACT

Radiation therapy is a complex treatment modality involving several technological and professional resources as well as a large number of attributions of these professionals with a high degree of interdependence. Thus there are many possibilities of failure in the treatment process that may lead to an accidental exposure. So regulatory agencies have established guidelines in their regulations in order to prevent accidental exposures through security analysis planning and risk management. The System of EValuation of Risk in RAdiotherapy, also known as SEVRRA, is based on the risk matrix methodology and allows the risk assessment of radiation therapy facilities in a prescriptive way, highlighting events leading to high-risk levels and severe consequences for individuals. With SEVRRA it is also possible to establish an importance analysis of the barriers proposed to avoid or mitigate such events.

This work aimed to demonstrate the application of SEVRRA for the risk management of radiation therapy facilities. The risk profile of the facility was determined by identifying the highest risk level events, and the barriers of greater impact for the overall risk level. After implementing some missing barriers in the original facility profile, it was achieved a reduction from 31% to 8% in the number of events leading to high-risk level, showing the effectiveness of SEVRRA for the risk management in radiation therapy facilities.

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