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Magnetic resonance spectroscopy

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Magnetic resonance spectroscopy(MRS) also known as MRSI (MRS Imaging) and Volume Selective NMR Spectroscopy, is an aspect of Magnetic Resonance Imaging and is a technique which combines the spatially-addressable nature of MRI with the spectroscopically-rich information obtainable from nuclear magnetic resonance (NMR). That is to say, MRI allows one to study a particular region within an organism or sample, but gives relatively little information about the chemical or physical nature of that region--its chief value is in being able to distinguish the properties of that region relative to those of surrounding regions. MR spectroscopy, however, provides a wealth of chemical information about that region, as would an NMR spectrum of that region. .

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