Harmonization of dose prescription for lung stereotactic radiotherapy

Guillaume Beldjoudi, Fanny Bosson, Vivien Bernard, Lise-Marie Puel,Isabelle Martel-Lafay,Myriam Ayadi,Ronan Tanguy

Physics and Imaging in Radiation Oncology（2022）

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Abstract

•Doses standardization achieved between dedicated linac and robotic-assisted unit.•Both methods delivered 3×18.3 Gy to the near minimum dose of the tumor volume.•Four-Dimensional deformable method allowed to estimate dose to a mobile tumor.•The reliability of a double-check software using a Monte-Carlo algorithm was validated.•Gross Tumor Volume-based prescription presented less dose heterogeneities to the tumor.

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Key words

Pulmonary SBRT,Dose prescription,Independent dose calculation,4D-sum,Deformable 4D-sum,Cumulated dose to GTV,Robotic assisted radiotherapy,Dedicated linear accelerator,GTV-based prescription,PTV-based prescription

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