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Electromagnetic Modeling of Pacemaker Lead Heating During MRI

Oskar Talcoth (Institutionen för signaler och system, Biomedicinsk elektromagnetik) ; Thomas Rylander (Institutionen för signaler och system, Signalbehandling)
Göteborg : Chalmers University of Technology, 2011. - 41 s.
[Rapport]

The electromagnetic part of pacemaker lead heating during magnetic resonance imaging (MRI) is a resonant phenomenon which is complicated by, among other factors, the wide range of length scales involved in the problem. In this work, the multi-scale part of the problem is taken into special consideration during the modeling process. The model incorporates a radio frequency coil, a human body phantom, and a highly detailed model of a pacemaker system with a bipolar lead.

Several configurations of pacemaker systems exposed to MRI are modeled and the results clearly show the importance of detailed lead modeling. Furthermore, modeling of resonant structures is investigated by a comparison between different modeling techniques.

Nyckelord: Helix, Implant Safety, Lead Heating, Magnetic Resonance Imaging, MR Safety, Pacemakers, Thin-wire Approximation



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Denna post skapades 2011-12-05. Senast ändrad 2011-12-05.
CPL Pubid: 149465

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Biomedicinsk elektromagnetik (2006-2017)
Institutionen för signaler och system, Signalbehandling (1900-2017)

Ämnesområden

Livsvetenskaper
Elektroteknik och elektronik

Chalmers infrastruktur

Relaterade publikationer

Denna publikation ingår i:


Electromagnetic Modeling and Design of Medical Implants and Devices


Ingår i serie

R - Department of Signals and Systems, Chalmers University of Technology R014/2011