CHORUS

Collaborative Hypertext of Radiology

Cardiovascular system

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bird's nest IVC filter

advantages

• low profile: 14.5 Fr introducer sheath
• low recurrent PE rates (1.1 - 2.7% by clinical history)
• low IVC thrombosis rates (2.9 - 5.0% by clinical history)
• placement in large diameter IVCs (not >40mm)
• free-form configuration does not require centering in IVC

disadvantages:

• stainless steel: ferromagnetic = magnetic susceptibility artifact
• more operator dependent
• difficult to place in short IVCs (need about 7cm for proper placement)
• prolapse of filter wires (? clinical significance)

see also: indications

Related CHORUS documents: Simon Nitinol IVC filter inferior vena cava (IVC) filters titanium Greenfield IVC filter inferior vena cava (IVC) filter: indications Vena-Tech IVC filter abdominal aortic aneurysm

Copyright © 2013, Charles E. Kahn, Jr.