Methods and systems for medical imaging using an ergonomic patient head an arm support are provided. The processor logic asserts address and request signals to provide an address and a request for a cache line memory write transaction. In one exemplary embodiment, a shielding apparatus generally includes side walls configured to be disposed generally about one or more electrical components on a substrate. In another embodiment, the conductor and cable are electrically isolated from one another except at proximal and distal ends where the two are mechanically coupled.