Obesity is a major cause of preventable morbidity and mortality in the US. A growing body of work suggests that triglyceride composition and its spatial distribution play a central role in this epidemic, necessitating the need for better non-invasive fat imaging. We propose a motion-robust acquisition scheme that combines the spatial resolution of MRI and the spectral resolution of MR spectroscopy using 2D multi-echo rosette k-space sampling. We validate the method with an oil phantom and demonstrate its motion robustness with a free-breathing in vivo acquisition.
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