Static Magnetic Fields & Associated Risks
Isabella Björkman-Burtscher1
1University of Gothenburg, Sweden

Synopsis

Keywords: Transferable skills: Safety

Static magnetic fields & associated risks will review basic MR system components related to the static magnetic field (B0) in the scanner and the fringe field – including the main coil and shield coils. The discussion on risks associated to the static magnetic fields will focus on magneto-mechanical forces and torque, the impact of motion within B0, as well as sensory effects. While attractive forces and torque are main actors in MR safety as proven fatal if underestimated, other effects represent more of a nuisance and challenge patient compliance and comfort than representing a medical risk.

Static magnetic fields & associated risks will review basic MR system components related to the static magnetic field (B0) in the scanner and the fringe field – including the main coil and shield coils. The discussion on risks associated to the static magnetic fields will focus on magneto-mechanical forces and torque, the impact of motion within B0, as well as sensory effects. While attractive forces and torque are main actors in MR safety as proven fatal if underestimated, other effects represent more of a nuisance and challenge patient compliance and comfort than representing a medical risk.

Acknowledgements

No acknowledgement found.

References

Essentials of MRI Safety, Donald W Mc Robbie, Wiley-Blackwell, 2020
Proc. Intl. Soc. Mag. Reson. Med. 31 (2023)