A)Diagram of DBS electrode contacts and the position of temperature probes are shown.
B)Two imaging planes used to image the DBS in the pre–scan are shown.
C)Images acquired by 3 of 20 individual receiver channels are shown. Note that the individual images show two null-locations due to interaction of the lead with the receiver and the transmitter coils.
D) Sum of Square image (reconstructed from individual receiver channels) shows the location of a single Tx-Null whose location strictly depends on the RF induced current and the transmit field of the body coil.