Comparison of dose distribution 6 MV photon in breast cancer treatment using plasticine and silicone rubber boluses

Authors

  • Susiyami Susiyami  Department of Physics, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia and Dr. Sardjito Hospital, Yogyakarta, Indonesia
  • Choirul Anam  Department of Physics, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
  • Heri Sutanto  Department of Physics, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

DOI:

https://doi.org/10.32628/IJSRST229359

Keywords:

breast cancer, bolus, plasticine, sillicone rubber, dose homogeneity

Abstract

There are many cases where treatment of breast cancer was performed with thin body contours, especially after the breast mastectomy. This may lead in a larger radiation dose in the lungs, so that a bolus is needed to compensate the thin body for the optimal dose distribution. This study was aimed to compare the dose distribution in the breast cancer treatment between using commonly used of the plasticine bolus and newly developed bolus, i.e. the sillicone rubber. The study was implemented in the chest of an anthropomorphic phantom. The anthropomorphic phantom was scanned using a CT scanner without bolus and with boluses of the plasticine and the silicone rubber. The dose distribution was calculated using the Xio treatment planning system (TPS). The results show that a dose reduction of the sillicone rubber bolus that reaches the breast tissue higher than the plasticine bolus. This is because the silicone rubber bolus has a higher number electron density than the plasticine bolus. The silicone rubber bolus may produce an optimal dose homogeneity within breast cancer and relatively lower dose to the lung.

References

  1. Orecchia R. Radiation therapy for inflammatory breast cancer. Eur J Surg Oncol. 2018;44(8):1148-1150.
  2. Tyran M, Tallet A, Resbeut M, et al. Safety and benefit of using a virtual bolus during treatment planning for breast cancer treated with arc therapy. J Appl Clin Med Phys. 2018; 19(5): 463–472.
  3. Tino R, Leary M, Yeo A, et al. Additive manufacturing in radiation oncology: a review of clicical practice, emerging trends and research opportunities. Int. J. Extrem. Manuf. 2020;2 012003
  4. Vu TT, Pignol JP, Rakovitch E, Spayne J, Paszat L. Variability in radiation oncologists' opinion on the indication of a bolus in post-mastectomy radiotherapy: an international survey. Clin Oncol (R Coll Radiol). 2007;19(2):115-119.
  5. Aras S, Tanzer İO, İkizceli T. Dosimetric Comparison of Superflab and Specially Prepared Bolus Materials Used in Radiotherapy Practice. Eur J Breast Health. 2020;16(3):167-170.
  6. Okoh FU, Yusof MFM, Abdullah R, Kabir NA. Polyvinyl alcohol (PVA) based bolus for high energy photons and electrons. IOP Conf. Ser.: Mater. Sci. Eng. 2020;785 012043.
  7. Park JW, Oh SA, Yea JW, Kang MK. Fabrication of malleable three-dimensional-printed customized bolus using three-dimensional scanner. PLoS One. 2017;12(5):e0177562.
  8. Supratman AS, Sutanto H, Hidayanto E, et al. Characteristic of natural rubber as bolus material for radiotherapy. Mater. Res. Express. 2018;5 095302
  9. Jaya GW, Sutanto H. Fabrication and characterization of bolus material using polydimethyl-siloxane. Mater. Res. Express. 2018;5 015307
  10. Boman E, Ojala J, Rossi M, Kapanen M. Monte Carlo investigation on the effect of air gap under bolus in post-mastectomy radiotherapy. Phys Med. 2018;55:82-87.
  11. Kong Y, Yan T, Sun Y, et al. A dosimetric study on the use of 3D-printed customized boluses in photon therapy: A hydrogel and silica gel study. J Appl Clin Med Phys. 2019;20(1):348-355.
  12. Khan Y, Villareal-Brajas JE, Udowicz M, et al. Clinical and Dosimetric Implications of Air Gaps between Bolus and Skin Surface during Radiation Therapy. Journal of Cancer Therapy. 2013;4(7): 1251-1255.
  13. Lobo D, Banerjee S, Srinivas C, et al. Influence of Air Gap under Bolus in the Dosimetry of a Clinical 6 MV Photon Beam. J Med Phys. 2020;45(3):175-181.

International Journal of Scientific Research in Science and Technology

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Published

2022-06-30

Issue

Volume 9, Issue 3, May-June-2022

Section

Research Articles

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Copyright (c) IJSRST

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Susiyami Susiyami, Choirul Anam, Heri Sutanto "Comparison of dose distribution 6 MV photon in breast cancer treatment using plasticine and silicone rubber boluses" International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011,Volume 9, Issue 3, pp.393-399, May-June-2022. Available at doi : https://doi.org/10.32628/IJSRST229359