In one embodiment, an implantable stimulation lead for delivering electrical stimulation to tissue of a patient, the implantable stimulation lead comprises: a lead body comprising a plurality of wires strands that form a solid helical hollow tube that is maintained by mutual contact pressure of neighboring wire strands, wherein the plurality of wire strands comprise an outer coating of non-conductive material to electrically isolate each of the plurality of wire strands from each other; and a plurality of electrodes with each electrode being electrically coupled to one of the plurality of wire strands.