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MR‐guided placement of a temporary vena cava filter: Technique and feasibility
Author(s) -
Frahm Christian,
Gehl HansBjörn,
Lorch Heike,
Zwaan Martin,
Drobnitzky Matthias,
Laub Gerhard A.,
Weiss HansDieter
Publication year - 1998
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880080121
Subject(s) - filter (signal processing) , vena cava , inferior vena cava filter , medicine , biomedical engineering , vena cava filters , compensation (psychology) , computer science , inferior vena cava , radiology , surgery , computer vision , thrombosis , psychology , psychoanalysis , venous thrombosis
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.