Abstract #4877
Magnetic Forces on Medical Implants
Robert J. Deissler 1 , Michael Martens 1 , Tanvir Baig 1 , Zhen Yao 1 , Charles Poole 1 , and Robert Brown 1
1
Department of Physics, Case Western Reserve
University, Cleveland, Ohio, United States
Medical implants raise important safety concerns for
patients receiving MRI due to the forces and torques
acting on the implants during patient scanning or entry.
The implant can be deemed MRI safe if the magnetic
forces and torques are less than the forces due to
gravity. Using a representative contour plot of B|grad
B| for a 1.5 T magnet design we determine safe zones
which also depend on the material susceptibility. We
show that if the implant is deemed safe for static
forces it will also be safe for static torques.
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