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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
Balloon-based techniques: MammoSite, Axxent, Contura