Evaluation of occupational and patient dose in cerebral angiography procedures / Avaliação da dose ocupacional e de pacientes adultos em procedimentos de angiografia cerebral
Radiol. bras
; 46(6): 351-357, Nov-Dec/2013. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-699252
Biblioteca responsável:
BR1.1
ABSTRACT
Objective The present study was aimed at estimating the doses received by physicians and patients during cerebral angiography procedures in a public hospital of Recife, PE, Brazil. Materials and Methods The study sample included 158 adult patients, and during the procedures the following parameters were evaluated exposure parameters (kV, mAs), number of acquired images, reference air kerma value (Ka,r) and air kerma-area product (PKA). Additionally, the physicians involved in the procedures were evaluated as for absorbed dose in the eyes, thyroid, chest, hands and feet. Results The results demonstrated that the doses to the patients' eyes region were relatively close to the threshold for cataract occurrence. As regards the physicians, the average effective dose was 2.6 µSv, and the highest effective dose recorded was 16 µSv. Conclusion Depending on the number of procedures, the doses received by the physicians may exceed the annual dose limit for the crystalline lenses (20 mSv) established by national and international standards. It is important to note that the high doses received by the physicians are due to the lack of radiation protection equipment and accessories, such as leaded curtains, screens and protective goggles. .
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Idioma:
Inglês
Revista:
Radiol. bras
Assunto da revista:
Diagnóstico por Imagem
/
Radiologia
Ano de publicação:
2013
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Technical and Technological Education Teacher at Universidade Tecnologica Federal do Parana (UTFPR)/BR