Time Domain Simulation of Harmonic Ultrasound Images and Beam Patterns in 3D Using the k-space Pseudospectral Method

  • Bradley E. Treeby
  • Mustafa Tumen
  • B. T. Cox
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6891)

Abstract

A k-space pseudospectral model is developed for the fast full-wave simulation of nonlinear ultrasound propagation through heterogeneous media. The model uses a novel equation of state to account for nonlinearity in addition to power law absorption. The spectral calculation of the spatial gradients enables a significant reduction in the number of required grid nodes compared to finite difference methods. The model is parallelized using a graphical processing unit (GPU) which allows the simulation of individual ultrasound scan lines using a 256 × 256 × 128 voxel grid in less than five minutes. Several numerical examples are given, including the simulation of harmonic ultrasound images and beam patterns using a linear phased array transducer.

Keywords

ultrasound simulation nonlinear k-space methods GPU 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Bradley E. Treeby
    • 1
  • Mustafa Tumen
    • 2
  • B. T. Cox
    • 2
  1. 1.College of Engineering and Computer ScienceThe Australian National UniversityAustralia
  2. 2.Department of Medical Physics and BioengineeringUniversity College LondonUK

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