Basis of NMR Imaging

Conventional NMR spectroscopy is used to determine chemical structure, as is described in Chapter 4, but cannot locate the position of the stimulated nuclei. NMRI is a method where the stimulating signal is spatially encoded so that an image can be reconstructed showing the distribution of nuclei in the sample. 

Polymer Spectroscopy. Edited by Allan H. Fawcett 1996 John Wiley Sons Ltd 

Other than spatially encoding the signal, imaging works on the same principles as standard NMR. 

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