Abstract #1456

RF-induced heating of a conducting wire entering into a dielectric medium along right-left axis on the presence of another wire during MRI

Pallab K Bhattacharyya^1,2, Tanvir Baig³, Bhumi Bhusal³, Mark J Lowe¹, Michael Martens³, and Stephen Jones¹

¹Imaging Institute, Cleveland Clnic, Cleveland, OH, United States, ²Radiology, Cleveland Clinic Lerner College of Medicine, Cleveland, OH, United States, ³Physics, Case Western Reserve University, Cleveland, OH, United States

RF-induced heating of stereo encephalography (SEEG) electrodes during MRI scans could be of concern. The change in heating pattern of an electrode in the presence of another electrode was investigated by measuring the heating at the tip of a conducting and insulated (bare at tip) wire parallel to B0-field and entering a poly-acrylic gel phantom along left-right axis in the presence of another wire. While the resonance length for maximum heating of the wires did not depend on the number of wires, the temperature rise at the wire tips depended on the relative lengths (resonance / anti-resonance) of the wires.

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