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Physics and Imaging in Radiation Oncology

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Presentation on theme: "Physics and Imaging in Radiation Oncology"— Presentation transcript:

1 Physics and Imaging in Radiation Oncology
Dosimetric end-to-end tests in a national audit of 3D conformal radiotherapy  Joerg Lehmann, Andrew Alves, Leon Dunn, Maddison Shaw, John Kenny, Stephanie Keehan, Jeremy Supple, Francis Gibbons, Sophie Manktelow, Chris Oliver, Tomas Kron, Ivan Williams, Jessica Lye  Physics and Imaging in Radiation Oncology  Volume 6, Pages 5-11 (April 2018) DOI: /j.phro Copyright © Terms and Conditions

2 Fig. 1 Dose variation at near reference condition (Case 1 Point 1): raw variation as per equation (1) (closed circles, Mean −0.4%, SD 1.2%) and variation corrected by facility reported output (open symbols, Mean −0.5%, SD 1.0%). Here and in all following figures results are broken down by planning and delivery system combination. Eclipse results are further broken down into dose calculation algorithms, as some results differ between them. Results for Pinnacle, Xio and Monaco are not further broken into the encountered respective dose calculation algorithms, as no significant differences have been observed here. Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

3 Fig. 2 PDD investigations: dose variations for points at different depths in the phantom corrected by the dose variation measured in Case 1 Point 1 per Eq. (2). Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

4 Fig. 3 Dose variation for points behind lung (Case 4 Points 2–5), corrected by the dose variation measured in Case 1 Point 1 per Eq. (2). Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

5 Fig. 4 Dose variation inside lung: Case 3 Point 8, right lateral (RLAT) and left lateral (LLAT) beams, corrected by the dose variation measured in Case 1 Point 1 per Eq. (2). Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

6 Fig. 5 Dose variations for Case 2. Dose variation at the measurement points has been corrected by the dose variation measured in Case 1 Point 1 per Eq. (2). Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

7 Fig. 6 Wedge impact. Difference in dose variations for Cases 4 (no wedge) and 5 (60° wedge). Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

8 Supplementary Figure 1 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

9 Supplementary Figure 2 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

10 Supplementary Figure 3 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

11 Supplementary Figure 4 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

12 Supplementary Figure 5 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

13 Supplementary Figure 6 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

14 Supplementary Figure 7 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions

15 Supplementary Figure 8 Physics and Imaging in Radiation Oncology 2018 6, 5-11DOI: ( /j.phro ) Copyright © Terms and Conditions


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