Design of a Highly Decoupled Compact Dual-tuned Transceiver RF Coil Arrays for 1H MRI and 31P MRSI at 7T

In this work, we developed a decoupled multichannel double-tuned RF coil array for 1H/31P MR imaging and spectroscopy at the ultrahigh field of 7T. One of the difficulties in designing such high-frequency double-tuned coil arrays is to electromagnetically decouple the two frequency channels simultaneously. To address this issue, we designed a double-crossed magnetic wall (or ICE) decoupling which can independently and simultaneously decouple the 1H channels and 31P channels. With the improved performance, this developed 1H/31P transceiver array is expected to offer improved detection quality and imaging speed in 1H/31P metabolic imaging applications at 7T.