An inferior vena cava (IVC) filter is a device used to prevent pulmonary embolism (PE), a blockage in the arteries of the lungs. Both permanent and temporary IVC filters can be placed and removed when the patient is no longer at risk for development of a PE.
For more information go to:
RadiologyInfo.org Information for Patients:
IVC Filter Placement and Removal: http://www.radiologyinfo.org/en/info.cfm?pg=venacavafilter