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Free keywords:
Lead; Electrodes; Media; Heating; Solid modeling; Magnetic resonance imaging; Numerical models
Abstract:
At 64 and 127 MHz for eight electrode leads with an insulation diameter of 1.46 mm, we evaluated the dependence of RF-induced power (p) generated by a plane wave incident field at electrodes on: distance between leads, electrical properties of surrounding media. At both frequencies and for all investigated surrounding media three cases were observed: p remained practically unaffected due to presence of the second lead, p was reduced up to 90%, p was increased by as much as 3.