A radio frequency (RF) coil for a magnetic resonance imaging (MRI) system
includes a plurality of rungs. Each rung includes a plurality of wires
positioned parallel to one another. Each wire has a circular cross
section and an insulating material disposed around an outside surface of
the wire. Using wires with a circular cross-section reduces the eddy
currents produced on a rung. As a result, the amount of eddy current
produced heating, vibration and acoustic noise is reduced. The plurality
of wires also enables a more uniform current distribution along the width
of each rung that in turn produces a more uniform excitation field (B1).