Comparison of dosimetric accuracy of acuros XB and analytical anisotropic algorithm against Monte Carlo technique.
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.
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