A comparison of natural and acoustic radiation force induced shear wave propagation speed measurements in open-chest pigs

Lana B.H. Keijzer, Jason Voorneveld, Dan J. Bowen, Mihai Strachinaru, Antonius F.W. Van Der Steen, Nico De Jong, Johan G. Bosch, Hendrik J. Vos, Annette Caenen

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    1 Citation (Scopus)

    Abstract

    Different shear wave elastography methods have been proposed to measure cardiac material properties. This study compared shear waves naturally generated by aortic and mitral valve closure to those externally induced with an acoustic radiation force throughout the cardiac cycle. The shear wave timing and propagation speeds were measured in four pigs with open-chest recordings. Despite spatial and temporal differences in excitation source, the propagation speeds of the natural shear waves were found to be in the same range as the propagation speeds of the active shear waves. The results also suggested a large inter-beat variability for the natural shear waves.

    Original languageEnglish
    Title of host publication2019 IEEE International Ultrasonics Symposium, IUS 2019
    PublisherIEEE
    Pages2110-2113
    Volume2019-October
    ISBN (Electronic)9781728145969
    DOIs
    Publication statusPublished - 2019
    Event2019 IEEE International Ultrasonics Symposium, IUS 2019 - Glasgow, United Kingdom
    Duration: 6 Oct 20199 Oct 2019

    Conference

    Conference2019 IEEE International Ultrasonics Symposium, IUS 2019
    CountryUnited Kingdom
    CityGlasgow
    Period6/10/199/10/19

    Keywords

    • acoustic radiation force
    • aortic valve closure
    • cardiac shear wave elastography
    • mitral valve closure

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