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Related Concept Videos

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

281
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
281

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Related Experiment Video

Updated: May 26, 2025

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
09:05

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Published on: October 20, 2016

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Longitudinal Displacement for Left Ventricular Function Assessment.

Marina Leitman1,2, Vladimir Tyomkin1

  • 1Department of Cardiology, Shamir Medical Center, Zerifin 70300, Israel.

Journal of Cardiovascular Development and Disease
|February 25, 2025
PubMed
Summary
This summary is machine-generated.

Longitudinal displacement, a measure of myocardial segment length change, offers new insights into cardiac function. It reveals a reversed basal-to-apical gradient and is significantly reduced in left ventricular dysfunction.

Keywords:
left ventricular functionlongitudinal displacementlongitudinal strainspeckle tracking imaging

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Last Updated: May 26, 2025

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Physiology

Background:

  • Myocardial function is typically assessed using ejection fraction and strain.
  • Longitudinal displacement, the absolute length change of myocardial segments, is less studied.
  • This study investigates longitudinal displacement in athletes and patients with left ventricular dysfunction.

Purpose of the Study:

  • To evaluate longitudinal displacement in healthy athletes and patients with left ventricular dysfunction.
  • To compare longitudinal displacement with longitudinal strain.
  • To explore the clinical utility of longitudinal displacement in assessing myocardial function.

Main Methods:

  • Echocardiography with speckle-tracking imaging was used.
  • Global and regional peak longitudinal displacement and strain were calculated.
  • A manual method for global longitudinal strain calculation was proposed.

Main Results:

  • Longitudinal displacement showed an inverse correlation with longitudinal strain.
  • A reversed basal-to-apical gradient in longitudinal displacement was observed (basal > mid > apical).
  • Global longitudinal displacement was significantly lower in patients with left ventricular dysfunction compared to healthy individuals.

Conclusions:

  • Peak longitudinal displacement is a viable parameter for assessing myocardial function, comparable to strain.
  • Longitudinal displacement exhibits a unique reversed basal-to-apical gradient.
  • Reduced longitudinal displacement is indicative of left ventricular dysfunction, and manual calculation of global longitudinal strain is feasible.