Abstract #2222

Heterogeneous gelatin-based head phantom for evaluating DBS heating

Clare McElcheran¹, Benson Yang², Fred Tam², Laleh Golenstani-Rad³, and Simon Graham²

¹University of Toronto, Toronto, ON, Canada, ²Sunnybrook Health Sciences Centre, Toronto, ON, Canada, ³Massachusetts General Hospital, Charlestown, MA, United States

A method to create a heterogeneous head phantom with long implanted wires to improve the evaluation of tissue heating surrounding deep brain stimulation (DBS) leads is presented. The phantom consists of three different oil-in-gelatin dispersions with electrical properties that mimic grey matter, white matter and cerebral spinal fluid (CSF) as well as a human skull. 3D printing technology was used to create gelatin moulds and an acrylic casing. A CT scan of the human skull was obtained to create a mesh-based digital representation. Thus, the physical phantom has an associated mesh-based digital model which can be used in electromagnetic simulation.

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