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Comparison of dosimetric accuracy of acuros XB and analytical anisotropic algorithm against Monte Carlo technique.
Seniwal, Baljeet; Bhatt, C P; Fonseca, Telma C F.
Afiliação
  • Seniwal B; Pós-Graduação em Ciências e Técnicas Nucleares, UFMG, BH/MG, Brazil.
Biomed Phys Eng Express ; 6(1): 015035, 2020 01 30.
Article em En | MEDLINE | ID: mdl-33438623
This study reports the comparison between two dose calculation algorithms, Acuros XB 13.5 (AXB) and Analytical Anisotropic Algorithm (AAA) against Monte Carlo (MC) simulations for 3D-Conformal Radiation Therapy (3D-CRT) using a female pelvic rando phantom. 3D-CRT treatment plans were generated on the CT images of rando phantom using AXB and AAA with Source to Axis Distance (SAD) technique. Doses obtained using two algorithms and MC results were compared using MATLAB based software CERR. In house MATLAB code was developed to calculate the gamma dose distribution comparison in terms of dose difference (DD) and distance to agreement distribution (DTA). The results showed that the Dmean in the PTV TOTAL (PTV) volume for AXB and AAA was equal to the mean dose calculated by MC simulations. The gamma passing rates for AXB were more accurate in comparison to AAA with reference to MC for PTV, Bladder and Femoral Heads region. After analysing the dose comparison specially for the PTV, femoral heads, also the analysis of dose volume histogram (DVH) and gamma dose distribution comparison for PTV, femoral heads and bladder, it can be concluded that AXB is more accurate in comparison to AAA. It can be said that AXB is well suited for dose calculation in clinical setup when compared to MC calculations.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pelve / Algoritmos / Planejamento da Radioterapia Assistida por Computador / Método de Monte Carlo / Anisotropia / Imagens de Fantasmas / Radioterapia de Intensidade Modulada Tipo de estudo: Health_economic_evaluation / Prognostic_studies Limite: Female / Humans Idioma: En Revista: Biomed Phys Eng Express Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pelve / Algoritmos / Planejamento da Radioterapia Assistida por Computador / Método de Monte Carlo / Anisotropia / Imagens de Fantasmas / Radioterapia de Intensidade Modulada Tipo de estudo: Health_economic_evaluation / Prognostic_studies Limite: Female / Humans Idioma: En Revista: Biomed Phys Eng Express Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido