2017
DOI: 10.29384/rbfm.2017.v11.n2.p7-10
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Modelagem dos Fatores de Transmissão e DLG para um TrueBeam STX

Abstract: ResumoPara Multi Leaf Collimator (MLC) de ponta arredondada, o sistema de planejamento Eclipse (Varian) exige a medida do Fator de transmissão (FT) e Dosimetric Leaf Gap (DLG) para Intensity Modulated Radiation Therapy (IMRT) e Volumetric Modulated Arc Therapy (VMAT). O uso desses fatores obtidos pela metodologia proposta pela Varian, pode não garantir a melhor concordância em controles da qualidade (CQ) de pacientes, enquanto a modelagem dos mesmos possibilita obter um valor "ótimo" reduzindo as diferenças en… Show more

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“…The leaf transmission on CAX (T${T_ \bot }$) was determined from the average of measured literature values, 13,19,20 using a Farmer chamber at an source surface distance of 90.0 cm at a depth of 10.0 cm 13,20,21 . For a flattened 6‐MV beam (denoted as X06F), the transmission value used in the simulations was 1.22%.…”
Section: Methodsmentioning
confidence: 99%
“…The leaf transmission on CAX (T${T_ \bot }$) was determined from the average of measured literature values, 13,19,20 using a Farmer chamber at an source surface distance of 90.0 cm at a depth of 10.0 cm 13,20,21 . For a flattened 6‐MV beam (denoted as X06F), the transmission value used in the simulations was 1.22%.…”
Section: Methodsmentioning
confidence: 99%