Tulip Type Basket Type Vena Cava Filter The purpose of vena cava filters is to prevent pulmonary embolisms by intercepting thrombotic material (blood clots)

Tulip Type

Basket Type

Vena Cava FilterThe purpose of vena cava filters is to prevent pulmonary embolisms by intercepting thrombotic material (blood clots) within the inferior vena cava.Product samples:•Tulip type •Basket type

MR Imaging of Vena Cava Filter (VCF)MRI of conventional VCF is significantly compromised due to the magnetic susceptibility and RF artifact of the devices. Catheterization followed by X-ray angiography with iodine contrast agent are required to image the VCF.Remnant thrombus clots are not directly visible, thus timing for removal of the filter is difficult.

Image modified acc. to: Neuerburg J, Bücker A, Adam G, Leen M, Rasmussen E, Hurtak W, Günther RW Caval filter implantation under MRI control - experimental in vitro and in vivo investigations. RöFo. 167,4 (1997) 418-422, Page 420”

Examples of Current Vena Cava Filters with Compromised MRI Image Quality

MR Images of Vena Cava Filter Containing Biophan’s aMRIs Technology

Simulated thrombotic specimen in phantom is now visible

Active MRI vena cava filter

with Biophan technology

Cross-section of specimen

Gregor Schaefers 2002Passive MRI vena cava

filter