Imaging for early stage breast cancer

Balloon-based techniques: MammoSite, Axxent, Contura

MammoSite Technically easier than IB, widespread use FDA approved 2002, multi-lumen device approved 2009 More reproducible and better tolerated 15 cm long, 6 mm thick double lumen for inflation and Ir-192 sourse connected to a computer-controlled HDR remote after-loader The Ir-192 runs in central catheter in the balloon, balloon diam 1.5-4 cm Dose presecibed 1 cm from balloon surface, usually 34 Gy/10 fr / 5 days