Imaging for early stage breast cancer
Balloon-based techniques: MammoSite, Axxent, Contura
CONTURA FDA approved 2007 Quite similar to MammoSite but has multiple lumens for passage of Ir-192 sources A central catheter and 4 surrounding channels Increased dose flexibility Potential for reduced skin/chest wall dose Can account for asymmetric implant with respect to central catheter Better conformance due to removal of seromen / air
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