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Updated: May 30, 2025
Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
Published on: October 20, 2016
Elevated frame rates during exercise echocardiography improve speckle-tracking success rate and augment deformation
Fabian Spahiu1, Michelle Ottlik1, Lars C Helbig1
1COR-HELIX, Institute of Sport Science, Faculty of Humanities, Leibniz University Hannover, Hannover, Germany.
High frame rates in speckle-tracking echocardiography improve tracking success and accuracy of myocardial deformation values, especially during exercise. Prioritizing the highest feasible frame rate enhances cardiac imaging reliability under stress conditions.
Area of Science:
- Cardiology
- Medical Imaging
- Echocardiography
Background:
- Two-dimensional speckle-tracking echocardiography (STE) quantifies myocardial function.
- Optimal frame rates for exercise STE remain unclear.
Purpose of the Study:
- To determine if increased frame rates during exercise STE improve tracking success and absolute deformation values.
Main Methods:
- 19 participants underwent stepwise exercise testing with STE at high, medium, and low frame rates.
- Tracking success and deformation values (longitudinal strain, twist, rotation, untwisting velocity) were analyzed.
Main Results:
- High frame rates (HFPS) significantly improved tracking success for parasternal short-axis images.
- HFPS yielded higher longitudinal strain and untwisting velocity compared to lower rates.
- Frame rate significantly impacted longitudinal strain and untwisting velocity.
Conclusions:
- Consistently using the highest feasible frame rate in STE is preferable for optimal tracking success and accuracy.
- High temporal resolution is crucial for reliable cardiac imaging during stress conditions.
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