Using nonlinear distortion to our benefit: Higher harmonic imaging of medical ultrasound

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    Abstract

    Acoustic wave propagation is inherently nonlinear. This causes a deformation of a propagating pressure pulse, and leads to higher harmonics of the emitted spectrum. Being avoided in the past, nowadays the second harmonic is used in diagnostic ultrasound to improve resolution and reduce artifacts. This paper shows how the improvements can be explained from the properties of the higher harmonics in a nonlinear ultrasound beam. Moreover, it is outlined how the idea of second harmonic imaging may be extended towards higher harmonic imaging. Finally, the paper presents the Iterative Nonlinear Contrast Source method, which is developed for the accurate computation of the higher harmonics in pulsed ultrasound beams.

    Original languageEnglish
    Title of host publicationProceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, ICEAA'12
    Place of PublicationPiscataway
    PublisherIEEE
    Pages531-534
    ISBN (Print)978-1-4673-0335-4
    DOIs
    Publication statusPublished - 2012
    Event2012 14th International Conference on Electromagnetics in Advanced Applications, ICEAA 2012 - Cape Town, South Africa
    Duration: 2 Sep 20127 Sep 2012

    Conference

    Conference2012 14th International Conference on Electromagnetics in Advanced Applications, ICEAA 2012
    CountrySouth Africa
    CityCape Town
    Period2/09/127/09/12

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  • Cite this

    Verweij, M. D., & Van Dongen, K. W. A. (2012). Using nonlinear distortion to our benefit: Higher harmonic imaging of medical ultrasound. In Proceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, ICEAA'12 (pp. 531-534). [6328684] IEEE. https://doi.org/10.1109/ICEAA.2012.6328684