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Evaluation of the AAA Treatment Planning Algorithm for SBRT Lung Treatment: Comparison with Monte Carlo and Homogeneous Pencil Beam Dose Calculations 

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Presentation on theme: "Evaluation of the AAA Treatment Planning Algorithm for SBRT Lung Treatment: Comparison with Monte Carlo and Homogeneous Pencil Beam Dose Calculations "— Presentation transcript:

1 Evaluation of the AAA Treatment Planning Algorithm for SBRT Lung Treatment: Comparison with Monte Carlo and Homogeneous Pencil Beam Dose Calculations  Ermias Gete, PhD, Tony Teke, MSc, William Kwa, PhD  Journal of Medical Imaging and Radiation Sciences  Volume 43, Issue 1, Pages (March 2012) DOI: /j.jmir Copyright © 2012 Elsevier Inc. Terms and Conditions

2 Figure 1 Planning target volume (PTV) and normal tissue dose-volume histograms of patient #4 calculated with anisotropic analytical algorithm (AAA; solid lines) and Monte Carlo (MC; dashed lines). Patient #4 is used because the treatment plan is typical of the cohort. Journal of Medical Imaging and Radiation Sciences  , 26-33DOI: ( /j.jmir ) Copyright © 2012 Elsevier Inc. Terms and Conditions

3 Figure 2 (a) Dose distribution of the plan for patient 4 on an axial isocentric slice calculated with pencil beam without heterogeneity correction (PBNC). The planning target volume (PTV) is represented by the orange contour. (b) Dose profiles of the plan for patient 4 across a line in the anteroposterior direction (red dashed line shown in 2a) calculated with the three algorithms anisotropic analytical algorithm (AAA), Monte Carlo (MC), and PBNC. Note that a reasonable agreement in dose is observed at the planning target volume (PTV) edge for all the three calculations. Journal of Medical Imaging and Radiation Sciences  , 26-33DOI: ( /j.jmir ) Copyright © 2012 Elsevier Inc. Terms and Conditions

4 Figure 3 (a) Normal tissue dose-volume histograms (skin, lung, esophagus, and “D2cm”) of patient 4 calculated with anisotropic analytical algorithm (AAA; solid lines) and pencil beam without heterogeneity correction (PBNC; dashed lines). AAA calculations in general gave larger normal tissue doses when compared with PBNC values. (b) Normal tissue dose-volume histograms (heart, spinal cord, brachial plexus, and trachea) of patient 4 calculated with AAA (solid lines) and PBNC (dashed lines). AAA calculations in general gave larger normal tissue doses when compared with PBNC values. Journal of Medical Imaging and Radiation Sciences  , 26-33DOI: ( /j.jmir ) Copyright © 2012 Elsevier Inc. Terms and Conditions


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