MRI safety assessment of a generic deep brain stimulator

Author

Cabot, Eugenia ; Lloyd, Tom ; Christ, Andreas ; Kainz, Wolfgang ; Douglas, Mark ; Stenzel, Gregg ; Wedan, Steve ; Kuster, Niels

Author_Institution

IT´´IS Found., Zurich, Switzerland

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

The radio frequency (RF) electromagnetic field of magnetic resonance (MR) scanners can result in significant tissue heating due to the RF coupling with the conducting parts of medical implants. The objective of this paper is to assess the safety of a generic deep brain stimulator (DBS) during MRI scans based on a combined numerical and experimental procedure described in [1]. The evaluation is performed for 1.5 T MR scanners using a generic model of a deep brain stimulator with a helical lead. The results show that the approach is technically feasible and provides sound and conservative information on the potential heating of implants.

Keywords

biological tissues; biomedical MRI; brain models; cellular biophysics; neurophysiology; prosthetics; 1.5T MR scanners; MRI safety assessment; RF coupling; generic deep brain stimulator; generic model; magnetic resonance scanners; medical implants; radio frequency electromagnetic field; tissue heating; Implants; Lead; Magnetic heads; Numerical models; Radio frequency; Safety; Satellite broadcasting;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6051327

Filename

6051327