A magnetically coupled radiofrequency (RF) coil (MC coil) for optimizing noise correlation has been developed. The electric fields of each RF coil, which determine noise correlation, were controlled by a small magnetic coupling between a pair of RF coils. The MC coil was implemented as a two-channel loop coil in 1.5 T magnetic resonance imaging (MRI). The experimental results show that noise correlation can be controlled by using a small magnetic coupling without signal-to-noise ratio (SNR) loss. MC coils that can optimize noise correlation give a new degree of freedom to coil design.
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