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Adapting parametric acoustic arrays for tomographic imaging.

A Cai1, J A Sun, G Wade

  • 1Department of Electrical and Computer Engineering, University of California, Santa Barbara 93106.

Ultrasonic Imaging
|July 1, 1988
PubMed
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This study introduces a new theoretical model for parametric arrays in tomography. The model simplifies reconstructing acoustic nonlinear parameter variations, improving tomographic imaging.

Area of Science:

  • Acoustics
  • Medical Imaging
  • Signal Processing

Background:

  • Tomography relies on accurate data acquisition.
  • Parametric arrays offer unique acoustic properties.
  • Previous models had limitations in specific tomographic scenarios.

Purpose of the Study:

  • To develop a theoretical model for parametric arrays in tomographic applications.
  • To address limitations of prior models by considering array proximity to the receiver and non-negligible cross-section.
  • To derive a simplified method for tomographic reconstruction.

Main Methods:

  • Development of a theoretical model for a parametric array.
  • Inclusion of assumptions regarding array proximity and cross-section.
  • Derivation of a mathematical relation for tomographic reconstruction.

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Main Results:

  • A novel theoretical model for parametric arrays in tomography was established.
  • The model incorporates previously unconsidered assumptions (array-receiver proximity, non-negligible cross-section).
  • A simplified relation for reconstructing acoustic nonlinear parameter variations was derived.

Conclusions:

  • The proposed model offers a more comprehensive approach to parametric array tomography.
  • The derived relation facilitates simpler and potentially more accurate tomographic reconstruction.
  • This work advances the application of parametric arrays in imaging and material characterization.