Christopher T. Rodgers1, Lowri E. Cochlin2, Damian J. Tyler2, Stefan Neubauer1, Matthew D. Robson1
1Oxford Centre for Clinical Magnetic Resonance Research, University of Oxford, Oxford, United Kingdom; 2Department of Physiology, Anatomy and Genetics, University of Oxford, United Kingdom
Cardiac 31P spectra of high-energy phosphorus metabolites are typically acquired using a transmit/receive surface coil. In MR imaging, single element surface coils have largely been superseded by receive arrays, which provide higher signal-to-noise ratios (SNRs) and larger fields of view (FOVs). We present the first receive array cardiac 31P spectra at 3T. Comparing with an established protocol in 8 normal volunteers, we observe larger FOV and homogeneity, increased comfort, and an enhancement in SNR comparable to that from NOE. Our 8-element array contains for the first time posterior elements, which contribute up to 35% at the posterior of the heart.