MethodsComparison Between Direct Volumetric and Speckle Tracking Methodologies for Left Ventricular and Left Atrial Chamber Quantification by Three-Dimensional Echocardiography
Section snippets
Methods
A total of 120 subjects (mean age 53 ± 17 years, 65% men) were enrolled in this study, including 88 unselected patients in sinus rhythm with various diagnoses of heart disease and 32 healthy volunteers. Three-dimensional echocardiographic acquisitions of the left ventricle and left atrium were performed in all 120 subjects and in 105 of 120 subjects (mean age 54 ± 19 years, 66% men), respectively. After acquisition, 22 subjects (18%) were excluded from the LV analysis because of poor LV image
Results
Mean LV volumes and ejection fraction measured by 3DE direct volumetric and speckle-tracking methods were not significantly different. Excellent correlations were found between the 2 methods for all variables, and Bland-Altman analysis demonstrated small biases and relatively narrow limits of agreement (Figure 3).
Measurements of LA volumes by the 2 methods also correlated well and demonstrated narrow limits of agreement. Similar to LV volume measurements, LA volumes were generally somewhat
Discussion
In an era of rapidly expanding and evolving 3DE technology, 1 of the issues facing 3DE quantification of chamber volumes and function is that different software vendors use different methodologies and algorithms. This may result in different reference values and varying reproducibility between methods that ultimately may significantly affect their comparability in daily clinical practice. For the purpose of standardization, it is of critical importance to evaluate and compare the clinical
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Bi-Atrial Function before and after Percutaneous Closure of Atrial Septum in Patients with and without Paroxysmal Atrial Fibrillation: A 2-D and 3-D Speckle Tracking Echocardiographic Study
2018, Ultrasound in Medicine and BiologyCitation Excerpt :In our patients with septal devices, atrial phasic volume and phasic function were assessed with time–volume curves constructed using 3-D-STE. Validation with cardiac magnetic resonance has been previously documented (Perez de Isla et al. 2014) despite the non-specificity of the algorithm for quantification of atrial volumes, and it has been found that 3-D direct volumetric and speckle tracking methods give comparable and reproducible quantification of atrial volumes, making interchangeable application a feasible alternative in current clinical practice (Kleijn et al. 2011). Although we had a fairly good correlation between 2-D methods and 3-D-STE for the evaluation of LA and RA volumes, 3-D methods had better reproducibility as an automated method, as indicated by the lower intra-observer and inter-observer variability.
Importance of three-dimensional speckle tracking in the assessment of left atrial and ventricular dysfunction in patients with myotonic dystrophy type 1
2018, Revista Portuguesa de CardiologiaLeft atrial dysfunction in light-chain cardiac amyloidosis and hypertrophic cardiomyopathy – A comparative three-dimensional speckle-tracking echocardiographic analysis from the MAGYAR-Path Study
2017, Revista Portuguesa de CardiologiaCitation Excerpt :Due to the absence of an LA-specific segmentation model, the left atrium was automatically divided into 16 segments using standard LV segmentation.9 Using the ECG-gated 3D-LA model, end-systolic maximum volume (Vmax), diastolic volume before atrial contraction (VpreA) and end-diastolic minimum volume (Vmin) were measured in each case10–16 (Figure 1). From the three volumes, the following features of different phases of LA function were also calculated:
Characterization of left atrial dysfunction in hypereosinophilic syndrome - Insights from the Motion analysis of the heart and great vessels by three-dimensional speckle tracking echocardiography in pathological cases (MAGYAR-Path) Study
2016, Revista Portuguesa de CardiologiaCitation Excerpt :3D wall motion tracking was then automatically performed through the entire cardiac cycle. From time curves of global LA volume changes, maximum (Vmax) and minimum (Vmin) LA volumes and LA volume before atrial contraction (VpreA) were measured from the 3D echocardiographic datasets just before mitral valve opening (end-systole), just before mitral valve closure (end-diastole) and at time of P wave on ECG (early diastole), respectively (Figure 1).7–10 LA function consists of three phases: the systolic reservoir phase, and the diastolic passive (conduit) and active emptying (booster pump) phases.
Left atrial ejection force correlates with left atrial strain and volume-based functional properties as assessed by three-dimensional speckle tracking echocardiography (from the MAGYAR-Healthy Study)
2016, Revista Portuguesa de CardiologiaCitation Excerpt :The newly developed 3DSTE is a non-invasive imaging methodology with chamber quantification capability based on block-matching of the myocardial speckles of the endocardial border during their frame-to-frame motion.2 The usefulness of 3DSTE for LA volumetric assessments has been demonstrated and validated by 2D echocardiography,6 two-dimensional speckle tracking echocardiography (2DSTE),5 RT3DE3 and computed tomography.5 Moreover, 3DSTE-derived LA strain measurements have also been reported7–11 and validated by 2DSTE.10
Left atrial volumetric and strain analysis by three-dimensional speckle-tracking echocardiography in noncompaction cardiomyopathy: Results from the MAGYAR-path study
2016, Hellenic Journal of CardiologyCitation Excerpt :There are several ways in which 3DSTE could characterise LA function: measuring LA volumes with respect to the heart cycle and calculating parameters characterising all the phases of LA motion detailed above (see Table 1);12–14 calculating different LA strain parameters from the same 3D cast, including RS, LS, CS, 3DS and AS;7,15,16