Combined use of transcranial magnetic stimulation and metal electrode implants: a theoretical assessment of safety considerations

Golestanirad, Laleh; Rouhani, Hossein; Elahi, Behzad; Shahim, Kamal; Chen, Robert; Mosig, Juan R; Pollo, Claudio; Graham, Simon J (2012). Combined use of transcranial magnetic stimulation and metal electrode implants: a theoretical assessment of safety considerations. Physics in medicine and biology, 57(23), pp. 7813-27. Bristol: Institute of Physics Publishing IOP 10.1088/0031-9155/57/23/7813

Full text not available from this repository. (Request a copy)

This paper provides a theoretical assessment of the safety considerations encountered in the simultaneous use of transcranial magnetic stimulation (TMS) and neurological interventions involving implanted metallic electrodes, such as electrocorticography. Metal implants are subject to magnetic forces due to fast alternating magnetic fields produced by the TMS coil. The question of whether the mechanical movement of the implants leads to irreversible damage of brain tissue is addressed by an electromagnetic simulation which quantifies the magnitude of imposed magnetic forces. The assessment is followed by a careful mechanical analysis determining the maximum tolerable force which does not cause irreversible tissue damage. Results of this investigation provide useful information on the range of TMS stimulator output powers which can be safely used in patients having metallic implants. It is shown that conventional TMS applications can be considered safe when applied on patients with typical electrode implants as the induced stress in the brain tissue remains well below the limit of tissue damage.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurosurgery

UniBE Contributor:

Pollo, Claudio

ISSN:

0031-9155

Publisher:

Institute of Physics Publishing IOP

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:37

Last Modified:

17 Mar 2015 21:28

Publisher DOI:

10.1088/0031-9155/57/23/7813

PubMed ID:

23135209

Web of Science ID:

000311351400011

URI:

https://boris.unibe.ch/id/eprint/14837 (FactScience: 221971)

Actions (login required)

Edit item Edit item
Provide Feedback