ESTRO Multidisciplinary Management of Breast Cancer 2017

multicatether brachytherapy: five steps

1. Detailed knowledge on: •

Preoperative imaging (mammography and/or MRI and/or ultrasound); • Surgical procedure: number of clips/ how placed ? • Free margins in 6 directions 2. Tumor localization before BCS, translation into CT planning scan 3. Calculation safety margins for the CTV in all 6 directions.

4. Definition of the CTV and PTV 5. Delineation of the CTV and PTV

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Strnad et al, 2015