Interaction of MRI field gradients with the human body

Glover, Paul

Abstract

In this review, the effects of low-frequency electromagnetic fields encountered specifically during magnetic resonance imaging (MRI) are examined. The
primary biological effect at frequencies of between 100 and 5000 Hz (typical of MRI magnetic field gradient switching) is peripheral nerve stimulation, the result of which can be a mild tingling and muscle twitching to a sensation of
pain. The models for nerve stimulation and how they are related to the rate of change of magnetic field are examined. The experimental measurements, and analytic and computational modelling work in this area are reviewed. The
review concludes with a discussion of current regulation in this area and current practice as both are applied to MRI.

Citation

Glover, P. (2009). Interaction of MRI field gradients with the human body. Physics in Medicine and Biology, 54(21), Article R99-R115. https://doi.org/10.1088/0031-9155/54/21/R01

• Journal Article Type: Article
• Publication Date: Jan 1, 2009
• Deposit Date: Mar 27, 2013
• Publicly Available Date: Mar 27, 2013
• Journal: Physics in Medicine and Biology
• Print ISSN: 0031-9155
• Electronic ISSN: 0031-9155
• Publisher: IOP Publishing
• Peer Reviewed: Not Peer Reviewed
• Volume: 54
• Issue: 21
• Article Number: R99-R115
• DOI: https://doi.org/10.1088/0031-9155/54/21/R01
• Public URL: https://nottingham-repository.worktribe.com/output/1014437
• Publisher URL: http://iopscience.iop.org/0031-9155/54/21/R01/
• Additional Information: Copyright Institute of Physics 2009.