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. 2021 Dec 9;198(5):484–496. doi: 10.1007/s00066-021-01872-4

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© The Author(s) 2021

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Fig. 1 — a Theoretical dose distributions and b resulting dose–volume histograms for a spherical phantom target with a diameter of 8 mm (0.27 ml, blue) and a shell with an outer diameter of 28 mm (red). c Dose planning for an isocentric beam set with conformal beam weights at the Cyberknife and d resulting dose–volume histograms for two beam weight options for a 0.27 ml spherical phantom target (conformal beam weights: black, non-conformal beam weights: blue) and a shell with an outer diameter of 28 mm (conformal beam weights: brown, non-conformal beam weights: red)