Abstract #4182

MRI safety of deep brain stimulation devices: Radiofrequency heating of a commercial lead and an insulated copper wire

Benson Yang^1,2, Fred Tam¹, Benjamin Davidson³, Clement Hamani^3,4, Nir Lipsman^1,3,4, Chih-hung Chen², and Simon J Graham^1,5

¹Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada, ²Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada, ³Division of Neurosurgery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada, ⁴Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, ON, Canada, ⁵Medical Biophysics, University of Toronto, Toronto, ON, Canada

Magnetic resonance imaging (MRI) safety of deep brain stimulation (DBS) patients remains a concern. Because of this, researchers have relied on phantoms to mimic electromagnetic behavior. DBS devices are costly and as a result, copper wire is often used as a substitute to DBS leads. This work examines the suitability of using copper wire to emulate MRI-DBS interactions with results showing over 50 % reduction in temperature elevations when using a DBS lead.

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