Echo-planar spectroscopic imaging (EPSI) is a fast method of acquiring metabolic information in the human brain. When applied at high-fields, such as 7T however, it suffers from limited spectral-width, as well as the inconsistencies between readout lines, seen at all field strengths, which lead to ghosts in the spectra. In this work, we present the readout-segmented COKE method, which removes the spectral-width limitation at 7T and provides a coherent phase evolution that avoids Nyquist artefacts in the spectra. Simulations and phantom scans are also presented, which seek to increase understanding of residual lipid contamination due to the readout-segmented spatial-encoding scheme.
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