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Current situation of high-dose-rate brachytherapy for cervical cancer in Brazil

OBJECTIVE: To assess the current situation of high-dose-rate (HDR) brachytherapy for cancer of the cervix in Brazil, regarding apparatuses, planning methods, prescription, fractionation schedule and evaluation of dose in organs at risk. MATERIALS AND METHODS: In the period between March/2012 and May...

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Detalles Bibliográficos
Autores principales: da Silva, Rogério Matias Vidal, Pinezi, Juliana Castro Dourado, Macedo, Luiz Eduardo Andrade, Souza, Divanízia do Nascimento
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337132/
https://www.ncbi.nlm.nih.gov/pubmed/25741073
http://dx.doi.org/10.1590/0100-3984.2013.1859
Descripción
Sumario:OBJECTIVE: To assess the current situation of high-dose-rate (HDR) brachytherapy for cancer of the cervix in Brazil, regarding apparatuses, planning methods, prescription, fractionation schedule and evaluation of dose in organs at risk. MATERIALS AND METHODS: In the period between March/2012 and May/2013, a multiple choice questionnaire was developed and sent to 89 Brazilian hospitals which perform HDR brachytherapy. RESULTS: Sixty-one services answered the questionnaire. All regions of the country experienced a sharp increase in the number of HDR brachytherapy services in the period from 2001 to 2013. As regards planning, although a three-dimensional planning software was available in 91% of the centers, conventional radiography was mentioned by 92% of the respondents as their routine imaging method for such a purpose. Approximately 35% of respondents said that brachytherapy sessions are performed after teletherapy. The scheme of four 7 Gy intracavitary insertions was mentioned as the most frequently practiced. CONCLUSION: The authors observed that professionals have difficulty accessing adjuvant three-dimensional planning tools such as computed tomography and magnetic resonance imaging.