Counterpoint: The device with the most dose modulation capacity

摘要

The Strut-Adjusted Volume Implant (SAVI; Cianna Medical, Aliso Viejo, CA) is designed to maximize the capacity to modulate dose allowing target tissue coverage with simultaneous normal tissue sparing. There are four sizes of SAVI catheters: 6-1 mini, 6-1, 8-1, and 10-1 with 7, 7, 9, and 11 catheters, respectively. Multiple sizes allow insertion in virtually any clinical situation including the most challenging, such as a tumor bed sandwiched between the chest wall (CW) and skin, cardiac proximity, thin breast tissue in the medial chest, or in the setting of breast augmentation. As the device opens in a continuous motion, it allows enormous possibilities to fit both length and width of cavities. The central catheter is approximately 7 mm longer to allow the dose to project forward from the tip of the catheter.