A semiconductor device, including a dielectric pedestal located above and integral to a substrate and having first sidewalls, a channel region located above the dielectric pedestal and having second sidewalls, and source and drain regions opposing the channel region and each substantially spanning one of the second sidewalls. In some embodiments, the power coupling element is a component of the coil unit, and the radio frequency coil further comprises a base coil unit including the power delivery element operatively combinable with the coil unit to define an annular coil. The invention is adapted to identify both physiological and genetic conditions of subjects so tested, and should provide a rapid and inexpensive means for accomplishing the same.