Abstract #0638

Reducing Radiofrequency-induced Heating in Realistic Deep Brain Stimulation Lead Trajectories using Parallel Transmission

Pei-Shan Wei¹, Benson Yang¹, Clare E. McElcheran², Laleh Golestanirad³, and Simon J. Graham^1,4

¹Physical Sciences, Sunnybrook Research Institue, Toronto, ON, Canada, ²Baylis Medical, Mississauga, ON, Canada, ³Massachusetts General Hospital, Boston, MA, United States, ⁴Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada

Patients with deep brain stimulation devices have a safety concern for localized heating that can arise during MRI. Clinically, the lead trajectory for the surgical stimulation procedure varies among patient population. We have shown in previous numerical simulations that the lead trajectory would affect the performance of heating suppression in patient-specific pTx optimization. The present work experimentally validated that RF-induced heating can be suppressed for a high-risk patient-specific lead trajectory, using optimal pTx input parameters.

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