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Related Experiment Videos

An ultrasound receiver with programmable time gain control

R W Barnes, A M Nomeir, G T Pardue

    Journal of Clinical Ultrasound : JCU
    |June 1, 1975
    PubMed
    Summary

    A new ultrasound receiver uses programmable time gain control (TGC) to improve echo amplitude equalization. This advancement enhances diagnostic accuracy and output display in ultrasound imaging.

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    Area of Science:

    • Medical Imaging
    • Ultrasound Technology
    • Signal Processing

    Background:

    • Ultrasound imaging relies on accurate echo signal detection.
    • Time Gain Control (TGC) is crucial for compensating signal attenuation with depth.
    • Existing TGC methods may have limitations in precise amplitude equalization.

    Purpose of the Study:

    • To develop and evaluate an ultrasound receiver with a novel programmable Time Gain Control (TGC) system.
    • To assess the performance of the programmable TGC in improving echo amplitude equalization.
    • To determine the impact of the programmable TGC on diagnostic ultrasound output display.

    Main Methods:

    • Development of an ultrasound receiver incorporating programmable Time Gain Control (TGC).
    • Synthesis of the TGC curve using sequentially gated analog switches.
    • Each switch segment controls receiver gain over a specific depth range (1 cm).
    • Diagnostic studies were conducted utilizing the developed receiver.

    Main Results:

    • The programmable TGC system demonstrated effective amplitude equalization of received ultrasound echoes.
    • Significant improvements were observed in the clarity and accuracy of the output display.
    • The sequential gating of analog switches allowed for precise gain adjustments.

    Conclusions:

    • The developed ultrasound receiver with programmable TGC offers enhanced performance in echo amplitude equalization.
    • This technology has the potential to improve diagnostic accuracy in ultrasound examinations.
    • Programmable TGC represents a significant advancement in ultrasound receiver design.

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