Abstract: A cable for use in biopotential measurements in a magnetic resonance (MR) environment comprises a flexible plastic or polymer sheet (32, 40) extending as a single unitary structure from a first end to an opposite second end, and an electrically conductive trace (38, 58) disposed on the flexible plastic or polymer sheet and running from the first end to the opposite second end. The electrically conductive trace has sheet resistance of one ohm/square or higher, and may have a hatching or checkerboard pattern. The cable may further include an electrically insulating protective layer (50, 70) disposed on the substrate and covering the electrically conductive trace, an electrode (30) disposed on the electrically conductive trace at the second end, an edge connector (74) at the first end, or various combinations of such features.

Abstract: A cable for use in biopotential measurements in a magnetic resonance (MR) environment comprises a flexible plastic or polymer sheet (32, 40) extending as a single unitary structure from a first end to an opposite second end, and an electrically conductive trace (38, 58) disposed on the flexible plastic or polymer sheet and running from the first end to the opposite second end. The electrically conductive trace has sheet resistance of one ohm/square or higher, and may have a hatching or checkerboard pattern. The cable may further include an electrically insulating protective layer (50, 70) disposed on the substrate and covering the electrically conductive trace, an electrode (30) disposed on the electrically conductive trace at the second end, an edge connector (74) at the first end, or various combinations of such features.

Abstract: An electrode patch (34) for use in biopotential measurements in a magnetic resonance (MR) environment includes: a plastic or polymer sheet (32); an electrically conductive trace (58) disposed on the plastic or polymer sheet, the electrically conductive trace having sheet resistance of one ohm/square or higher; and an electrode (30) disposed on the electrically conductive trace and configured for attachment to human skin. In some embodiments the electrically conductive trace is a carbon-based electrically conductive trace. The electrode may comprise a silver or other electrically conductive layer disposed on the electrically conductive trace and an electrolyte layer or other adhesive layer, such as a silver chloride-based electrolyte layer, disposed on the silver or other electrically conductive layer.