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Related Experiment Videos

Breast imaging with a conical transducer/annular array hybrid scanner.

F S Foster, M Arditi, M S Patterson

    Ultrasound in Medicine & Biology
    |March 1, 1983
    PubMed
    Summary

    A new hybrid conical scanner offers improved breast imaging resolution. This advanced ultrasound system provides detailed images with fine speckle patterns and clear small structures, showing potential for clinical use.

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    Area of Science:

    • Medical Imaging
    • Biomedical Engineering
    • Ultrasound Technology

    Background:

    • Breast imaging relies on high-resolution ultrasound for early detection.
    • Conventional ultrasound systems face limitations in beamforming and sidelobe reduction.
    • Developing novel transducer geometries can enhance diagnostic capabilities.

    Purpose of the Study:

    • To develop and evaluate a hybrid conical scanner for improved breast ultrasound imaging.
    • To compare the imaging performance of different transducer configurations.
    • To assess the clinical potential of the novel hybrid system.

    Main Methods:

    • A hybrid conical scanner was designed, integrating a conical receiver with an annular array transmitter.
    • Three geometries were evaluated: conventional annular array, cone/full annular array, and cone/center element (simple conical scanner).

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  • Ultrasound field characteristics, beamwidth, and sidelobe levels were analyzed and compared.

    • Main Results:

    • Both conical systems achieved narrow beamwidths (0.3 mm at -6dB).
    • The cone/annular array hybrid demonstrated superior sidelobe characteristics compared to the simple conical scanner.
    • The hybrid system produced high-resolution images with fine speckle and excellent definition of small structures.

    Conclusions:

    • The hybrid conical scanner offers significant advantages in resolution and sidelobe control for breast imaging.
    • The developed system shows considerable potential for clinical application in breast diagnostics.
    • This technology advances ultrasound capabilities for visualizing fine details in breast tissue.