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Validation of RayStation Monte Carlo dose calculation algorithm for multiple LINACs by Luigi Manco; Kevin Vega; Nicola Maffei; Maria Victoria Gutierrez; Elisa Cenacchi; Annalisa Bernabei; Alessio Bruni; Elisa D'angelo; Bruno Meduri; Frank Lohr; Gabriele Guidi is a Medicine article available to read on EtoBox.
What is Validation of RayStation Monte Carlo dose calculation algorithm for multiple LINACs about?
Purpose A photon Monte Carlo (MC) model was commissioned for flattened (FF) and flattening filter free (FFF) 6 MV beam energy. The accuracy of this model, as a single model to be used for three beam matched LINACs, was evaluated. Methods Multiple models were created in RayStation v.10A for three linacs equipped with Elekta “Agility” collimator. A clinically commissioned collapsed cone (CC) algorithm (GoldCC), a MC model automatically created from the CC algorithm without further optimization (CCtoMC) and an optimized MC model (GoldMC) were compared with measurements. The validation of the model was performed by following the recommendations of IAEA TRS 430 and comprised of basic validation in a water tank, validation in a heterogeneous phantom and validation of complex IMRT/VMAT paradigms using gamma analysis of calculated and measured dose maps in a 2D-Array. Results Dose calculation with the GoldMC model resulted in a confidence level of 3% for point measurements in water tank and heterogeneous phantom for measurements performed in all three linacs. The same confidence level resulted for GoldCC model. Dose maps presented an agreement for all models on par to each other with γ cri
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- Author
- Luigi Manco; Kevin Vega; Nicola Maffei; Maria Victoria Gutierrez; Elisa Cenacchi; Annalisa Bernabei; Alessio Bruni; Elisa D'angelo; Bruno Meduri; Frank Lohr; Gabriele Guidi
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Medicine (Health Sciences)