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, 5Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
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, 5Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
The radiofrequency heating results showed temperature elevation differences when the deep brain stimulation device was power on and off in the heterogeneous phantom setup and when compared to a homogeneous phantom setup.
Figure 2: Gelatin-filled human skull with implanted deep brain stimulation (DBS) leads
and fiber-optic temperature sensors, and the assembled phantom: (a) location of
the temperature sensors: sensors 1* and 2* implanted inside the skull and
sensor 3 at the spiral trajectory; (b) right DBS lead trajectory and temperature
sensor 4 and (c) assembled phantom prior to the final fill and temperature
sensor 5 [7].
Figure 4: Turbo
spin-echo images of the phantom: (a) reconstructed transverse view for
implantable pulse generator (IPG) off using transmit/receive birdcage coil; (b)
reconstructed transverse view for IPG on using transmit/receive birdcage coil;
and (c) a reconstructed sagittal view for phantom illustration purposes using
20 channel receive-only head and neck array coil and body coil for transmission
[7].
