1. A device comprising: a dual-tuned birdcage coil comprising an inner multinuclear coil and a plurality of outer 1 H coils, the plurality of outer coils being longitudinally separated along an axis from the inner coil and not directly connected to the inner coil, the inner coil being inductively coupled to one or more of the outer coils, the inner coil being tunable independently from one or more of the outer coils.