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  • Title: Plane-wave ultrasound beamforming using a nonuniform fast Fourier transform.
    Author: Kruizinga P, Mastik F, de Jong N, van der Steen AF, van Soest G.
    Journal: IEEE Trans Ultrason Ferroelectr Freq Control; 2012 Dec; 59(12):2684-91. PubMed ID: 23221217.
    Abstract:
    Beamforming of plane-wave ultrasound echo signals in the Fourier domain provides fast and accurate image reconstruction. Conventional implementations perform a k-space interpolation from the uniform sampled grid to a nonuniform acoustic dispersion grid. In this paper, we demonstrate that this step can be replaced by a nonuniform Fourier transform. We study the performance of the nonuniform fast Fourier transform (NUFFT) in terms of signal-to-noise ratio and computational cost, and show that the NUFFT offers an advantage in the trade-off between speed and accuracy, compared with other frequency-domain beamforming strategies.
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