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Abstract #4173

Impact of different materials along the lead body and at the electrode on temperature rise at the electrode of an active implant

John A. Nyenhuis1 and Krishna Singhal1

1Electrical and Computer Engineering, Purdue University, West Lafayette, IN, United States

Temperature rise, scaled to the square of rms electric field, was calculated for a model lead and electrode surrounded by different materials (ASTM phantom, blood, fat, and muscle.) Temperature rise at the electrode was greatest for the highest conductivity material (blood) along the lead body and least for the material with the lowest conductivity (fat). Muscle at the electrode yields the greatest temperature rise. The inclusion of a section of a heterogeneous inclusion along the lead body, tended to have a minor effect on the electric field transfer function. Electric field transfer functions were calculated and measured.

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