The radiofrequency (RF) transmit field can induce
current in implanted devices; therefore, it is essential to detect
and minimize coupling to stimulator leads and guide-wire structures. Reverse
polarization has been proposed as low-RF-power method to safely detect current
in the implanted devices using birdcage coil. The purpose of this study is to
demonstrate feasibility of combining knowledge of coil current and location
with reverse polarization method using parallel transmit array to detect and
localize implanted wires.