Observational studyCardiovascular ultrasound2018
Comprehensive assessment of left ventricular myocardial function by two-dimensional speckle-tracking echocardiography.
Observational study in Cardiovascular ultrasound, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Left Ventricular Twist Mechanics Before and After Aortic Valve Replacement: A Feasibility Study and Exploratory Analysis.Seminars in cardiothoracic and vascular anesthesia · 2022Trial
- Correlation of echocardiographic myocardial deformation variables and vascular Doppler ultrasound variables in the classification of Type-Entry-Malperfusion (TEM) for aortic dissection.Quantitative imaging in medicine and surgery · 2026Article
- 2D Speckle-tracking Echocardiography Parameters and Prognostic Performance of the Progression Among Patients with Stroke.Medical archives (Sarajevo, Bosnia and Herzegovina) · 2025Article
- Oxygen venous saturation is associated with subclinical myocardial systolic dysfunction in patients with end-stage renal disease undergoing hemodialysis.Archives of medical sciences. Atherosclerotic diseases · 2024Article
- Article
- Two-dimensional Echocardiographic Assessment of Myocardial Strain: Important Echocardiographic Parameter Readily Useful in Clinical Field.Korean circulation journal · 2019Review
- Permanent longitudinal strain damage of cardiotoxic drugs in childhood cancer: What is the safe level?Annals of pediatric cardiologyArticle
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Authors and funding
10 authors.
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Abstract
backgroundLeft ventricular ejection fraction (LVEF) results from the combined action of longitudinal and circumferential contraction, radial thickening, and basal and apical rotation. The study of these parameters together may lead to an accurate assessment of the cardiac function.
methodsNinety healthy volunteers, categorized by gender and age (≤ 55 and > 55 years), were evaluated using two-dimensional speckle tracking echocardiography. Transversal views of the left ventricle (LV) were obtained to calculate circumferential strain and left ventricular twist, while three apical views were obtained to determine longitudinal strain (LS) and mitral annular plane systolic excursion (MAPSE). We established the integral myocardial function of the LV according to: 1. The Combined Deformation Parameter (CDP), which includes Deformation Product (DP) - Twist x LS (° x %) - and Deformation Index (DefI) -Twist / LS (° / %)-; and 2. the Torsion Index (TorI): Twist / MAPSE (° / cm).
resultsThe mean age of our patients was 50.3 ± 11.1 years. CDP did not vary with gender or age. The average DP was - 432 ± 172 ° x %, and the average DefI was - 0.96 ± 0.36 ° / %. DP provides information about myocardial function (normal, pseudonormal, depressed), and the DefI quotient indicates which component (s) is/are affected in cases of abnormality. TorI was higher in volunteers over 55 years (16.5 ± 15.2 vs 13.1 ± 5.0 °/cm, p = 0.003), but did not vary with gender.
conclusionsThe proposed parameters integrate values of twisting and longitudinal shortening. They allow a complete physiological assessment of cardiac systolic function, and could be used for the early detection and characterization of its alteration.
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