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Updated: Feb 7, 2026

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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Two-dimensional speckle-tracking echocardiographic assessment of left ventricular mechanical synchrony in clinically

Yueh-Lun Hsu1, Hui-Pi Huang1

  • 1Institute of Veterinary Clinical Science, Veterinary School, National Taiwan University, Taipei, Taiwan, hphuang@ntu.edu.tw.

Veterinary Medicine (Auckland, N.Z.)
|July 28, 2018
PubMed

Insights

Clinically healthy cats exhibit left ventricular mechanical heterogeneity and synchrony. These findings establish normal ranges for these parameters in feline cardiology using advanced echocardiography techniques.

Area of Science:

  • Veterinary Cardiology
  • Cardiac Mechanics
  • Echocardiography

Background:

  • Ventricular heterogeneity and synchrony are linked to hypertrophic cardiomyopathy in humans.
  • Hypertrophic cardiomyopathy is a prevalent condition in domestic cats.
  • Understanding normal cardiac mechanics is crucial for diagnosing feline heart disease.

Purpose of the Study:

  • To establish the presence and normal range of left ventricular mechanical heterogeneity in healthy cats.
  • To determine the normal range of left ventricular mechanical synchrony in healthy cats.
  • To utilize two-dimensional speckle-tracking echocardiography for assessing these parameters.

Main Methods:

  • Prospective study including 34 clinically healthy cats.
  • Two-dimensional echocardiography and two-dimensional speckle-tracking echocardiography were performed.
  • Measurements included circumferential, radial, and longitudinal strain, strain rate, heterogeneity, and synchrony.

Main Results:

  • Segmental heterogeneity: circumferential 13.1%±5.9%, radial 19.1%±10.3%, longitudinal 15.4%±6.8%.
  • Transmural heterogeneity (circumferential): -14.3%±4.6%.
  • Left ventricular synchrony: circumferential 11.7±4.2 ms, radial 16.5±13.4 ms, longitudinal 19.4±8.5 ms. Inter-ventricular synchrony: -3.9±13.2 ms.

Conclusions:

  • Left ventricular mechanical heterogeneity and synchrony are present in clinically healthy cats.
  • Segmental longitudinal heterogeneity increases from apex to base.
  • Transmural circumferential heterogeneity decreases from endocardium to epicardium.

Keywords:
felinesynchronyventricular heterogeneity

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