Adil Bashir1, Joseph J. Ackerman2, Robert J. Gropler
1Radiology, Washington University, St. Louis, MO, United States; 2Chemistry, Washington University, St. Louis
A 1D-CSI in combination with surface coil is widely used for 31P NMR spectroscopy of the heart. However, the discrete Fourier transform used to spatially construct low resolution phase encoded CSI data can lead to Fourier ringing. This contaminates the signal from the heart tissue with that from the chest muscles. In this work we demonstrate that using a superficial and highly non-linear field gradient the signal can be quickly and effectively localized to the deep lying heart tissue with little or no contamination. The applicability of the technique in phantom and animals is demonstrated.