Modeling of RF heating due to metal implants in MRI

Christopher J. Yeung, Robert C. Susil, Ergin Atalar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metal implants, even if non-ferromagnetic, may couple with the radiofrequency (RF) electromagnetic field used in magnetic resonance imaging (MRI) and cause a heating hazard. With the development of MRI as a tool for image-guided surgery, metal devices (e.g. guidewires) are being used in patients during MRI scans. This paper reviews the electromagnetic and bioheat transfer methods we have used to evaluate the safety of metal devices in MRI with respect to RF heating. We recommend updated regulatory guidelines to deal with the highly localized heating encountered with metal implants. We also recommend the use of the safety index as a useful measure of the RF safety of a device.

Original languageEnglish (US)
Title of host publicationIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Pages823-826
Number of pages4
Volume1
StatePublished - 2002
Event2002 IEEE Antennas and Propagation Society International Symposium - San Antonio, TX, United States
Duration: Jun 16 2002Jun 21 2002

Other

Other2002 IEEE Antennas and Propagation Society International Symposium
CountryUnited States
CitySan Antonio, TX
Period6/16/026/21/02

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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