The effect of motion on IMRT _ looking at interplay with 3D measurements

7th International Conference on 3D Radiation Dosimetry

Thomas, A.^1 ; Yan, H.^1 ; Oldham, M.^1 ; Juang, T.^1 ; Adamovics, J.^2 ; Yin, F.F.^1

Duke University Medical Center, Durham, NC, United States^1

Rider University, Lawerenceville, NJ, United States^2

关键词: 3-D measurement;    3d dosimeters;    Color map;    Dose distributions;    Head and neck;    High quality;    Pass rate;    Treatment plans;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/444/1/012049/pdf
DOI  :  10.1088/1742-6596/444/1/012049

来源: IOP

【 摘 要 】

Six base of skull IMRT treatment plans were delivered to 3D dosimeters within the RPC Head and Neck Phantom for QA verification. Isotropic 2mm 3D data was obtained using the DLOS-PRESAGE system and compared to an Eclipse (Varian) treatment plan. Normalized Dose Distribution pass rates were obtained for a number of criteria. High quality 3D dosimetry data was observed from the DLOS system, illustrated here through colormaps, isodose lines, profiles, and NDD 3D maps. Excellent agreement with the planned dose distributions was also observed with NDD analysis revealing > 90% NDD pass rates [3%, 2mm], noise