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Figure 1 Active-stent endograft. (A) Components of homemade active endograft, constructed from 0.009-inch nitinol wire and expanded polytetrafluoroethylene graft material. (B) Completed one-channel active-stent device mounted on a 5-F catheter and constrained within a 10-F nylon sheath (arrowhead). Matching tuning circuitry is housed in a separate box (arrow).
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