Advanced Physics for Brachytherapy 2018

Summary for Prostate Brachytherapy

• Minimal impact for HDR brachytherapy

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CTV-PTV

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OARs: rectum, bladder, urethra

• Important effect for seed implants

➢ D90: -7% average due to ISA and tissues

➢ Calcifications: -10% average on D90 (large std.)