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Related Experiment Videos

Tricuspid annular motion.

E Hammarström1, B Wranne, F J Pinto

  • 1Cardiology Division, Stanford University School of Medicine, CA.

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|March 1, 1991
PubMed
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A new echocardiography method reliably quantifies tricuspid annular motion, offering a reproducible diagnostic tool for assessing right ventricular systolic function. This technique measures the longitudinal movement of the tricuspid annulus, crucial for understanding right heart function.

Area of Science:

  • Cardiology
  • Echocardiography
  • Cardiac Physiology

Background:

  • Tricuspid annular motion reflects right ventricular systolic function, similar to mitral annular motion reflecting left ventricular function.
  • Tricuspid annular excursion is indicative of right ventricular longitudinal motion and systolic venous inflow to the right atrium.
  • Reproducible quantification of tricuspid annular motion has been lacking.

Purpose of the Study:

  • To describe and validate a method for measuring tricuspid annular motion using two-dimensional oriented M-mode echocardiography from the apical view.
  • To assess the reproducibility of this measurement technique.
  • To establish tricuspid annular motion measurement as a diagnostic tool for right heart function.

Main Methods:

  • Utilized two-dimensional oriented M-mode echocardiography from the apical view.

Related Experiment Videos

  • Studied 10 normal subjects and 29 patients with left heart disease but no right heart involvement.
  • Measured tricuspid and mitral annular motion at lateral, septal/medial, anterior, and posterior margins.

    • Main Results:

    • Normal tricuspid annular motion values were established: lateral (24.9 ± 3.5 mm), medial (20.1 ± 2.5 mm), anterior (21.6 ± 3.8 mm), and posterior (22.3 ± 2.3 mm).
    • Demonstrated low interobserver (6.19%–11.56% coefficient of variance) and intraobserver (4.10%–7.26% coefficient of variance) variability.
    • Confirmed the feasibility of reproducible measurement.

    Conclusions:

    • The described echocardiographic method allows for reproducible measurement of tricuspid annular motion.
    • This technique can serve as a valuable diagnostic tool for evaluating right ventricular systolic function.
    • Accurate quantification of tricuspid annular motion enhances the assessment of right heart health.