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Progress In Electromagnetics Research
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MRI INDUCED HEATING OF DEEP BRAIN STIMULATION LEADS: EFFECT OF THE AIR-TISSUE INTERFACE

By S. A. Mohsin, N. M. Sheikh, and U. Saeed

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Abstract:
We have investigated the scattering of the Magnetic Resonance Imaging (MRI) radiofrequency (RF) field by implants for Deep Brain Stimulation (DBS) and the resultant heating of the tissue surrounding the DBS electrodes. The finite element method has been used to perform full 3-D realistic simulations. The near field has been computed for varying distances of the connecting portion of the lead from the air-tissue interface. Dissipated powers and induced temperature rise distributions have been obtained in the region surrounding the electrodes. It is shown that the near proximity of the air-tissue interface results in a reduction in the induced temperature rise.

Citation:
S. A. Mohsin, N. M. Sheikh, and U. Saeed, "MRI Induced Heating of Deep Brain Stimulation Leads: Effect of the Air-Tissue Interface," Progress In Electromagnetics Research, Vol. 83, 81-91, 2008.
doi:10.2528/PIER08040504
http://www.jpier.org/PIER/pier.php?paper=08040504

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