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Abstract #4182

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

Benson Yang1,2, Fred Tam1, Benjamin Davidson3, Clement Hamani3,4, Nir Lipsman1,3,4, Chih-hung Chen2, and Simon J Graham1,5
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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