Title :
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
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;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6051327
