MRI compatible electrical lead for an implanted electronic medical device

An electrical lead that is adapted for implantation in an animal and compatible with a magnetic resonance imaging scanner which responds to signals at a Larmor frequency of tissue in the animal, said electrical lead comprising:

• a first plurality of coiled insulated wires wound in a first direction forming an outer layer of conductors, and having a first pitch that produces a first inductance and a first capacitance, wherein the first inductance and the first capacitance are configured to cause the first coil to act as a first parallel resonator tuned to the Larmor frequency;
• a second plurality of coiled insulated wires wound in a second direction forming an inner layer of conductors within the outer layer of conductors, and having a second pitch that produces a second inductance and a second capacitance, wherein the second inductance and the second capacitance are configured to cause the first coil to act as a second parallel resonator tuned to the Larmor frequency;
• an electrically conductive layer extends around the inner layer of conductors;
• and
• a layer of a material that is biologically compatible with tissue of the animal and extending around the outer layer of conductors and the electrically conductive layer.