In vivo dosimetry in breast tumours: comparison between the calculated and measured dose

Authors

  • Ana Roma Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Inês Ruas Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Raquel Rocha Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Verónica Gonçalves Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Ana Cravo Sá Área Científica de Radioterapia, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Cátia Águas Departamento de Radioterapia, Clinique Universitaire Saint-Luc. Bruxelles, Belgique.
  • Emmanuel Bonnarens Departamento de Radioterapia, Clinique Universitaire Saint-Luc. Bruxelles, Belgique.
  • Carina Marques Coelho Área Científica de Radioterapia, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Fátima Monsanto Área Científica de Radioterapia, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.
  • Elisabete Carolino Área Científica de Matemática, Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa. Lisboa, Portugal.

DOI:

https://doi.org/10.25758/set.1371

Keywords:

Radiotherapy, Breast tumor, In vivo dosimetry, Semiconductor diodes

Abstract

Introduction – In vivo dosimetry is useful in measuring the dose administered to patients during treatment, assessing significant differences between the prescribed dose and the dose to the target volume and the organs at risk. Purpose – To compare the measured dose with the calculated dose in patients with breast tumors with and without a physical wedge. Methods – Entrance dose measurements using p-type diodes were performed for tangential fields and relative field-in-field in all 38 patients. Results – Statistically significant differences in open tangential fields (ρ=0.000) were verified. Discussion – Studies report significant systematic deviations between planned and measured doses. Conclusion – With this study, we conclude that there is no influence in the doses due to the presence of the physical wedge.

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References

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Published

2022-08-25

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Section

Artigos

How to Cite

In vivo dosimetry in breast tumours: comparison between the calculated and measured dose. (2022). Saúde & Tecnologia, 15, 34-38. https://doi.org/10.25758/set.1371