Abstract
This paper describes an investigation of MR-active vena cava filter (VCF) implants. The active part of the VCF is a resonating circuit, which is tuned to the Lamor frequency of the MR scanner. The experiments were performed on a low field MRI system. The susceptibility artifact behaviour of different commercially available VCFs and their materials was investigated. Three MR-active VCF prototypes were built based on these results and evaluated. No lead connection between the resonating circuit of the implant and the MR system is necessary for reception of the MR signal. Localisation of the prototypes within the MR image was possible by their signal enhancement. The results provide a basis for further developments and investigations of MR-active VCF implants for high field MR scanners.
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