Abstract #4867
Evaluation of Multi-Section Resistive Tapered Stripline (RTS) Lead Wires to Reduce SAR Near Implanted DBS Electrodes During MRI
Peter Serano 1,2 , Leonardo M. Angelone 3 , and Giorgio Bonmassar 1
1
Athinoula A. Martinos Center for Biomedical
Imaging, Charlestown, MA, United States,
2
Electrical
and Computer Engineering, University of Maryland,
College Park, MD, United States,
3
U.S.
Food and Drug Administration CDRH/OSEL/DP, Silver
Spring, MD, United States
When performing MRI in patients with DBS implants, one
of the major issues is the heating of tissue surrounding
the implant due to radiofrequency (RF) pickup of the
implant acting as an antenna. We present an extensive
evaluation of the design parameters of a novel DBS lead
for MRI based on Resistive Tapered Stripline (RTS)
technology. Our results show this innovative high
scattering technology can allow for up to a 40% decrease
in tissue specific absorption rate (SAR) near the DBS
electrode while maintaining low lead resistivity for
continuous current injection.
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