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
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