Advanced Physics for Brachytherapy 2018

Cross section assignments

• Accurate tissue segmentation, sources and applicators needed: identification (ρ e ,Z eff ) ➢ e.g. in breast: adipose and glandular tissue have significantly different (ρ e ,Z eff ); dose will be different

• If this step is not accurate ➔ incorrect dose ➢ Influences dosimetry and dose outcome studies

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Influences dose to organs at risk