Dual frequency MRI RF coil assembly on flexible substrate

摘要

A coil assembly for magnetic resonance apparatus includes a substrate comprising a first coil set (2) and a second coil set (4). The first coil set includes two or more coil elements configured to operate at a first radio frequency and the second coil set includes one or more coil elements configured to operate at a second radio frequency. The substrate is a flexible substrate and radio-frequency isolation means are provided for reducing coupling between at least some of the coil elements. In one embodiment, the first coil set comprises a pair of first coil elements that share a common central conductor (6) and a second coil set that comprises a pair of second coil elements that also shares the common central conductor (6). The RF isolation may be an electrical isolation circuit between the coil sets, provided by an RF trap or LC parallel circuit (see e.g. figure 6).