Multiple-voxel double-quantum lactate-edited spectroscopy using two-dimensional longitudinal Hadamard encoding.

H Lei; J Peeling

doi:10.1002/(sici)1522-2594(199907)42:1<19::aid-mrm4>3.0.co;2-t

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Multiple-voxel double-quantum lactate-edited spectroscopy using two-dimensional longitudinal Hadamard encoding.

H Lei·J Peeling

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Abstract

A conventional gradient-selected double-quantum lactate editing sequence was combined with fourth order two-dimensional longitudinal Hadamard encoding and slice-selective refocusing to acquire lactate-edited spectra in a 3 x 3 matrix of voxels. The performance of the sequence was verified in phantoms at 9.4 T and in focally ischemic rat brain at 7.0 T. Efficient suppression of water, lipid, and the singlet resonances of creatine, choline, and N-acetylaspartate was achieved, giving multi-voxel localized lactate-edited spectra with good signal-to-noise ratio.

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Animals Artifacts Aspartic Acid Brain Cerebral Infarction Choline Creatine Image Processing, Computer-Assisted Lactic Acid Magnetic Resonance Spectroscopy Phantoms, Imaging Rats Journal Article Research Support, Non-U.S. Gov't

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H Lei, J Peeling. 1999. Multiple-voxel double-quantum lactate-edited spectroscopy using two-dimensional longitudinal Hadamard encoding.. https://doi.org/10.1002/(sici)1522-2594(199907)42%3A1%3C19%3A%3Aaid-mrm4%3E3.0.co%3B2-t

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