Radiology and Oncology (Sep 2020)

Experimental validation of Monte Carlo based treatment planning system in bone density equivalent media

  • Radojcic Djeni Smilovic,
  • Casar Bozidar,
  • Rajlic David,
  • Kolacio Manda Svabic,
  • Mendez Ignasi,
  • Obajdin Nevena,
  • Debeljuh Dea Dundara,
  • Jurkovic Slaven

DOI
https://doi.org/10.2478/raon-2020-0051
Journal volume & issue
Vol. 54, no. 4
pp. 495 – 504

Abstract

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Advanced, Monte Carlo (MC) based dose calculation algorithms, determine absorbed dose as dose to medium-in-medium (Dm,m) or dose to water-in-medium (Dw,m). Some earlier studies identified the differences in the absorbed doses related to the calculation mode, especially in the bone density equivalent (BDE) media. Since the calculation algorithms built in the treatment planning systems (TPS) should be dosimetrically verified before their use, we analyzed dose differences between two calculation modes for the Elekta Monaco TPS. We compared them with experimentally determined values, aiming to define a supplement to the existing TPS verification methodology.

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