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Abstract #4315

Multi-Echo Acquisition Based J-Resolved Spectroscopic Imaging on a Whole-Body 3T Scanner

Gaurav Verma1, Saadallah Ramadan2, Nagarajan Rajakumar3, Scott Logan Lipnick3, Xiaoyu Sherry Liu3, Michael Albert Thomas3

1Bioengineering, Radiological Sciences, UCLA, Carson, CA, USA; 2Brigham & Women's Hospital, Radiology and Center for Clinical Spectroscopy, Boston, MA, USA; 3Radiological Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA

Spatial encoding has been integrated into a J-resolved spectroscopic sequence, resulting in a technique capable of acquiring 2D spectroscopic data over a 2D spatial array. A Multi-Echo based acquisition scheme was applied to the sequence to accelerate the acquisition rate. The viability of this sequence was demonstrated by acquiring five scans of a brain metabolite phantom with an 8-channel knee-array coil. The resulting spectra showed peaks due to a variety of metabolites at physiological concentrations and each produced a spherical spatial profile consistent with the shape of the brain phantom.