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Related Experiment Videos

Study on application of complementary Golay code into high frame rate ultrasonic imaging system.

Hu Peng1, Xuemei Han, Jianyu Lu

  • 1Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230026, China. hpeng@ustc.edu.cn <hpeng@ustc.edu.cn>

Ultrasonics
|July 28, 2006
PubMed
Summary

This study introduces an efficient method to enhance high frame rate (HFR) ultrasound imaging. The technique uses Golay coded excitation to improve image quality and expand the field of view for better diagnostic information.

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Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Signal Processing

Background:

  • High frame rate (HFR) ultrasound systems offer rapid imaging but are limited by rectangular fields of view and low signal-to-noise ratio (SNR).
  • Existing HFR methods struggle to capture comprehensive far-field information due to inherent system constraints.
  • Low SNR in single-transmission HFR systems compromises diagnostic accuracy.

Purpose of the Study:

  • To develop a computationally efficient method for constructing sector-mode images in HFR ultrasound systems.
  • To enhance the signal-to-noise ratio (SNR) of HFR ultrasound images.
  • To overcome the limitations of rectangular imaging areas in HFR systems.

Main Methods:

  • Utilized orthogonal complementary Golay coded excitation for dual-event transmit and receive.

Related Experiment Videos

  • Implemented simultaneous transmission of two plane waves at different angles per emission.
  • Employed Golay code orthogonality to isolate echo signals for angle-specific image reconstruction.
  • Synthesized two HFR-constructed images into a single sector-mode frame.

    • Main Results:

    • Successfully generated sector-mode images from HFR data.
    • Significantly increased the SNR of the ultrasound images.
    • Expanded the effective imaging area, particularly in the far field.
    • Demonstrated a computationally efficient approach for advanced ultrasound imaging.

    Conclusions:

    • The proposed Golay coded excitation method effectively enhances HFR ultrasound imaging.
    • This technique overcomes key limitations of traditional HFR systems, improving image quality and coverage.
    • The method offers a valuable advancement for diagnostic ultrasound applications requiring high frame rates and improved SNR.