Feasibility on using composite gel-alanine dosimetry on the validation of a multiple brain metastasis radiosurgery VMAT technique

8th International Conference on 3D Radiation Dosimetry

Pavoni, J.F.^1 ; Neves-Junior, W.F.P.^2 ; Silveira, M.A.^1 ; Ramos, P.A.M.M.^2 ; Haddad, C.M.K.^2 ; Baffa, O.^1

Departamento de Física, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP

14040-901, Brazil^1

Hospital Sirio Libanés, R. Dona Adma Jafet 91, Bela-Vista, Sao Paulo, SP

01308-000, Brazil^2

关键词: Alanine dosimeters;    Alanine dosimetry;    Composite gels;    Dose distributions;    End-to-end tests;    Multiple brain metastasis;    Radiosurgery;    Treatment planning systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/573/1/012050/pdf
DOI  :  10.1088/1742-6596/573/1/012050

来源: IOP

【 摘 要 】

This work presents an end-to-end test using a composite Gel-Alanine phantom, in order to validate 3-dimensionally the dose distribution delivered by a single isocenter VMAT technique on the simultaneous treatment of multiple brain metastases. The results obtained with the gel and alanine dosimeters are consistent with the expected by the treatment planning system, showing the potential of this multidosimetric approach and validating dosimetrically the multiple brain metastases treatment using VMAT.