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Related Experiment Videos

2-D array for 3-D ultrasound imaging using synthetic aperture techniques.

Nadim M Daher1, Jesse T Yen

  • 1Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|June 13, 2006
PubMed
Summary

This study introduces a 2-D ultrasound array for 3-D imaging using synthetic aperture techniques. It offers flexible designs optimizing for speed, resolution, or sensitivity in medical imaging applications.

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Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Array Signal Processing

Background:

  • Developing advanced 3-D ultrasound imaging systems is crucial for enhanced diagnostic capabilities.
  • Synthetic aperture techniques offer potential for improved resolution and data acquisition efficiency in ultrasound.

Purpose of the Study:

  • To present a flexible 2-D array platform for 3-D rectilinear ultrasound imaging at 10 MHz.
  • To explore the application of synthetic aperture techniques with a 2-D array for 3-D ultrasound.
  • To demonstrate optimized designs balancing acquisition time, resolution, and sensitivity.

Main Methods:

  • Utilized a 256x256 element, 4x4 cm 2-D ultrasound array.
  • Implemented a row-column addressing scheme with simplified single-layer flex circuit interconnects.

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  • Developed and evaluated three distinct design configurations prioritizing different imaging parameters.

    • Main Results:

    • Achieved high-resolution imaging with -6 dB and -20 dB beamwidths below 0.2 mm and 0.5 mm, respectively, in one design.
    • Demonstrated rapid volume acquisition in 256 transmit events with beamwidths around 0.4 mm and 0.8 mm in another design.
    • Showcased the system's flexibility in balancing acquisition time, resolution, and sensitivity.

    Conclusions:

    • The developed 2-D array platform enables efficient 3-D ultrasound imaging using synthetic aperture techniques.
    • Simplified interconnects contribute to a thinner, cheaper, and easier-to-manufacture system with minimal acoustic impact.
    • The presented designs offer tailored solutions for various clinical needs in 3-D ultrasound diagnostics.