Vena cava filter behavior and endovascular response: an experimental in vivo study.

Purpose: To evaluate the behavior and endovascular response of a new nitinol permanent vena cava filter, the TrapEase.

Methods: Percutaneous implantation of the filter was performed in six goats, with inferior vena cava (IVC) diameter close to that of man. Radiologic data concerning the IVC, filter diameter, patency and stability were collected.

Vessel wall reaction after vena cava filter placement.

Purpose: To evaluate the interaction between the Cordis Keeper vena caval filter and vessel wall in a porcine model.

Methods: Implantation of the filter was performed in five pigs. Radiologic data concerning inferior vena cava (IVC) diameter and filter patency, filter leg span, and stability were collected.