Magnetic Displacement Force and Safety of Coronary Artery Stents at 7 Tesla.
Christian Hamilton-Craig1,2, Jess Cameron1, Gregory Brown1, and Graham Galloway1,3
1Centre for Advanced Imaging, University of Queensland, Brisbane, Australia, 2Richard Slaughter Centre of Excellence in CVMRI, The Prince Charles Hospital, Brisbane, Australia, 3Translational Research Institute, Brisbane, Australia
Currently, there are minimal data regarding the magnetically induced
displacement force of coronary artery stents, in 7.0 T MR. We tested a range of commonly implanted coronary artery stents for maximal displacement force at 7T. CoCr stents appear to have safe deflection properties at 7T. However 316L-SS
and PtCr stents exhibit increased magnetically induced displacement forces, and
may be not be considered conditionally safe at 7.0T
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