Ultra-high frame rate tissue Doppler imaging.

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  • Additional Information
    • Source:
      Publisher: Pergamon Press Country of Publication: England NLM ID: 0410553 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-291X (Electronic) Linking ISSN: 03015629 NLM ISO Abbreviation: Ultrasound Med Biol Subsets: MEDLINE
    • Publication Information:
      Original Publication: Oxford, New York, Pergamon Press.
    • Subject Terms:
      Cardiac-Gated Imaging Techniques/*methods ; Echocardiography/*methods ; Elasticity Imaging Techniques/*methods ; Heart Ventricles/*diagnostic imaging ; Image Enhancement/*methods ; Image Interpretation, Computer-Assisted/*methods ; Video Recording/*methods; Algorithms ; Female ; Humans ; Middle Aged ; Reproducibility of Results ; Sensitivity and Specificity
    • Abstract:
      We describe a new tissue Doppler imaging (TDI) method, ultra-high frame rate tissue Doppler imaging (UFR-TDI). With two broad transmit beams covering only the ventricular walls, we achieve 1200 frames/s in a four-chamber apical view. We examined 10 healthy volunteers to study the feasibility of this method. Ultra-high-frame-rate TDI provided peak annular velocities and time to peak S' intervals in good agreement with those measured with conventional TDI. Moreover, UFR-TDI provided additional information in early and late systole: In all subjects, the method was able to separate the timing of electrical activation, start of mechanical contraction, mitral valve closure and start of ejection. The earliest mechanical activation was seen before mitral valve closure. The method was also able to measure the propagation speed of the mechanical wave created by aortic valve closure.
      (Copyright © 2014 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.)
    • Contributed Indexing:
      Keywords: Aortic valve closure; Continuous acquisition; Echocardiography; Mechanical wave propagation; Multi-line acquisition; Myocardium function; Plane wave imaging; Pre-ejection period
    • Publication Date:
      Date Created: 20131112 Date Completed: 20140730 Latest Revision: 20191210
    • Publication Date:
      20231215
    • Accession Number:
      10.1016/j.ultrasmedbio.2013.09.012
    • Accession Number:
      24210859