Andrew Webb1, Nadine Smith1
order to obtain high quality 31P data from human calf muscle, we have
designed a closely-fitting double-tuned half-volume coil with quadrature on
both 1H and 31P channels. Balanced, second order trap circuits are inserted
into the heteronuclear coil to prevent
counter-currents from being set up at the proton frequency, thus improving
the efficiency of the proton channel. 2D 31P CSI data sets have been obtained
at 7 tesla using this coil, with high signal-to-noise.