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MR-guided placement of a temporary vena cava filter: Technique and feasibility

✍ Scribed by Christian Frahm; Hans-Björn Gehl; Heike Lorch; Martin Zwaan; Matthias Drobnitzky; Gerhard A. Laub; Hans-Dieter Weiss

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 665 KB
Volume: 8
Category: Article
ISSN: 1053-1807
DOI: 10.1002/jmri.1880080121

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✦ Synopsis

The purpose of this paper was to investigate the feasibility of MR-guided insertion of a temporary vena cava filter on an open low-field imager. In vivo procedures were performed on four anesthetized pigs using a common nonferromagnetic temporary vena cava filter and a special prototype guidewire developed for vascular interventions guided by low-field MRI. Breath-hold spoiled gradient-echo sequences (fast low-angle shot [FLASH]) with flow compensation were used for position monitoring of the passively visualized intravascular devices. Using the described technique and equipment, all steps of the procedure were feasible in the MR unit. Practicability of the procedure seems to be sufficient for clinical purposes but was inferior compared to the conventional technique of filter placement.

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