Selective fourier transform localization

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Abstract
We have introduced the selective Fourier transform technique for spectral localization. This technique allows the acquisition of a high‐resolution spectrum from a selectable location with control over the shape and size of the spatial response function. The shape and size of the spatial response are defined during data acquisition and the location is selectable through processing after the data acquisition is complete. The technique uses pulsed‐field‐gradient phase encoding to define the spatial coordinates. In this paper the theoretical basis of the selective Fourier transform technique is developed and experimental results are presented, including comparisons of spectral localization using either the selective Fourier transform method or conventional multidimensional Fourier transform chemical‐shift imaging. © Academic Press, Inc.

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