Speckle Tracking Echocardiography in Left Ventricular Mechanics

Speckle tracking echocardiography (STE) has emerged as a precise, non-invasive tool for characterising left ventricular (LV) mechanics by analysing frame-to-frame motion of natural acoustic markers or “speckles” within the myocardium. By quantifying myocardial deformation in longitudinal, circumferential and radial directions, and by assessing rotational mechanics such as twist and untwisting velocities, STE provides a comprehensive view of systolic and diastolic function. This technique overcomes many limitations of conventional Doppler-based methods by being angle independent and by offering segmental and global indices of contractility. In clinical practice STE is applied to detect subclinical myocardial dysfunction in cardiomyopathies, to predict remodelling after myocardial infarction, to guide therapy in valvular disease and to monitor cardiac involvement in systemic disorders. Advances in three-dimensional STE further enhance spatial resolution, facilitating detailed mapping of torsion and dyssynchrony. Collectively, these capabilities have transformed our understanding of LV mechanics, from the helix-based myocardial band model to the prognostic implications of subtle changes in strain and twist, and have informed management strategies across a range of cardiovascular conditions.

Research from Nature Portfolio

Recent experimental work combining ballistocardiography and seismocardiography with two-dimensional STE under pharmacological stress has demonstrated strong correlations between linear metrics of chest vibration and LV rotational mechanics. In healthy volunteers receiving incremental dobutamine infusion, the maximal linear velocity derived from ballistocardiography closely predicted the rates of LV twist and untwisting, while maximal power and kinetic energy integrals from both modalities accounted for a substantial proportion of variance in ejection fraction. Mathematical models that integrated these signals with heart rate achieved robust prediction of systolic performance, emphasising the potential of wearable accelerometry to augment echocardiographic assessment of myocardial mechanics in dynamic physiological settings.

Speckle Tracking Echocardiography in Left Ventricular Mechanics publication trend

The graph below shows the total number of articles in speckle tracking echocardiography in left ventricular mechanics across all publications each year (not limited to Nature Index journals).

Technical terms

Speckle Tracking Echocardiography (STE): An imaging technique that tracks natural acoustic markers within the myocardium to quantify deformation.

Global Longitudinal Strain (GLS): The percentage change in myocardial length between end-diastole and end-systole along the long axis of the ventricle.

LV Twist (Torsion): The wringing deformation of the left ventricle, defined by the angular difference in rotation between apex and base during systole.

Untwisting Velocity: The rate of rotational recoil of the ventricle in early diastole, reflecting diastolic relaxation.

Ballistocardiography (BCG): A non-invasive measure of chest wall vibrations generated by cardiac ejection and blood flow.

Seismocardiography (SCG): A method that records local chest vibrations associated with myocardial movement using accelerometers.

References

1. Does Left Ventricular Rotational Mechanics Depend on Aortic Valve Annular Dimensions in Healthy Adults?—A Three-Dimensional Speckle-Tracking Echocardiography-Derived Analysis from the MAGYAR-Healthy Study. Biomedicines (2025).
2. Reduced Left Ventricular Twist Early after Acute ST-Segment Elevation Myocardial Infarction as a Predictor of Left Ventricular Adverse Remodelling. Diagnostics (2023).
3. Assessment of left ventricular twist by 3D ballistocardiography and seismocardiography compared with 2D STI echocardiography in a context of enhanced inotropism in healthy subjects. Scientific Reports (2021).