Physics Bucharest 2017

Breast treatments using Mammosite™

• Single balloon (round or oval ) catheter inserted into the tumour cavity at op or under US guidance post-op • Inflated to fill cavity • Attached to after-loader to deliver treatment • CTV tumour bed +1cm • 34Gy/10# over 5 days • Newer applicators with 5-11 catheters and vacuum ports

A: Balloon catheter B: Applicator shaft C: After-loader with 192 Ir source