Figure 1.

Bidirectional pull-back technique. (A) A pig-tail catheter confirmed the patency and position of the filter. (B) An Amplatz gooseneck snare captured the caudal hook while the other one attempted to engage the proximal end of the filter. (C) The snare was tightened when it engaged the cranial apex. (D) A wire loop was formed through the filter to firmly engage the apex. (E) The coaxial 10-F long sheaths were advanced to supply pushability, which facilitated separating the embedded struts and caval wall. (F) The filter was removed into the inferior 10-F long sheath.