Reproducibility in echocardiographic assessment of the left ventricular global and regional function, the HUNT study

Thorstensen, Anders; Dalen, Håvard; Amundsen, Brage H.; Aase, Svein Arne; Støylen, Asbjørn

doi:10.1093/ejechocard/jep188

Cited by 117 publications

(111 citation statements)

References 25 publications

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“…In spite of the high reliability of both techniques per se, we have shown a relatively poor correlation between them. This result is consistent with recent reports in adulthood [42,43] demonstrating a low correlation among deformation measurements which supports the notion that TDI and 2D-strain cannot be interchanged. Similarly, strain and strain rate values obtained from different ultrasound equipments or software may yield variable results which cannot be directly compared [43].…”

Section: Discussionsupporting

confidence: 93%

Feasibility and Reproducibility of a Standard Protocol for 2D Speckle Tracking and Tissue Doppler-Based Strain and Strain Rate Analysis of the Fetal Heart

Crispi¹,

Sepulveda-Swatson²,

Cruz‐Lemini³

et al. 2012

Fetal Diagn Ther

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Purpose: Assessment of cardiac function in the fetal heart is challenging because of its small size and high heart rate, restricted physical access to the fetus, and impossibility of fetal ECG recording. We aimed to standardize the acquisition and postprocessing of fetal echocardiography for deformation analysis and to assess its feasibility, reproducibility, and correlation for longitudinal strain and strain rate measurements by tissue Doppler imaging (TDI) and 2D speckle tracking (2D-strain) during pregnancy. Methods: Echocardiography was performed in 56 fetuses. 2D and color TDI in apical or basal four-chamber views were recorded for subsequent analysis. Caution was taken to achieve a frame rate >70 Hz for speckle tracking and >150 Hz for TDI analysis. For each acquisition, 7.5 s of noncompressed data were stored in cine loop format and analyzed offline. Since fetal ECG information is by definition not available, aortic valve closure was marked from aortic flow and the onset of each cardiac cycle was manually indicated in the 2D images. Sample volume length was standardized at the minimum size. Two observers measured the left and right ventricular peak systolic longitudinal strain and strain-rate. Results: Strain and strain rate measurements were feasible in 93% of the TDI and 2D-strain acquisitions. The mean time spent on analyzing TDI images was 18 min, with an intraclass agreement coefficient of 0.86 (95% CI 0.77–0.92), 0.83 (95% CI 0.72–0.90), 0.96 (95% CI 0.93–0.98), and 0.86 (95% CI 0.76–0.92) for basal left and right free wall peak systolic strain and strain rate, respectively. Agreement between observers using tissue Doppler also showed high reliability. The mean time spent for 2D-strain analysis was 15 min, with an intraclass agreement coefficient of 0.97 (95% CI 0.95–0.98), 0.94 (95% CI 0.89–0.96), 0.96 (95% CI 0.93–0.98), and 0.84 (95% CI 0.73–0.90) for basal left and right free wall peak systolic strain and strain rate, respectively. Agreement between observers also showed a high reliability that was similar for TDI and 2D-strain. There was a weak correlation between TDI and 2D-strain measurements. Conclusions: A standard protocol with fixed acquisition and processing settings, including manual indication of the timing events of the cardiac cycle to correct for the lack of ECG, was feasible and reproducible for the evaluation of longitudinal ventricular strain and strain rate of the fetal heart by TDI as well as 2D-strain analysis. However, both techniques are not interchangeable as the correlation between them is relatively poor.

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Section: Discussionsupporting

confidence: 93%

Feasibility and Reproducibility of a Standard Protocol for 2D Speckle Tracking and Tissue Doppler-Based Strain and Strain Rate Analysis of the Fetal Heart

Crispi¹,

Sepulveda-Swatson²,

Cruz‐Lemini³

et al. 2012

Fetal Diagn Ther

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“…The corresponding COR was significantly higher in single-wall analyses and significantly lower in similar analyses performed on the same echocardiograms. 16 Thus, all presented analyses show clinically acceptable reproducibility.…”

Section: Comparison Of Methodsmentioning

confidence: 60%

“…12,16 One experienced physician-echocardiographer (H.D.) performed all analyses according to the ASE/EAE recommendations.…”

Section: Analysis Of Conventional Echocardiographymentioning

confidence: 99%

“…Additional data on reproducibility of both conventional echocardiographic data and tissue Doppler indices have been published recently. 12,16 Statistical Analysis Mean differences were tested by Student t test, and differences between age groups and between myocardial walls were tested by linear mixed-effects models using post hoc Bonferroni corrections. Mitral annular velocities obtained by different methods were compared and tested by linear mixed-effects models with a post hoc least significant difference method to enable detection of even smaller differences among the 3 methods.…”

Section: Data Reproducibilitymentioning

confidence: 99%

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Reference Values and Distribution of Conventional Echocardiographic Doppler Measures and Longitudinal Tissue Doppler Velocities in a Population Free From Cardiovascular Disease

Dalen

Thorstensen

Vatten

et al. 2010

Circ: Cardiovascular Imaging

155

133

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“…In practice, it is assessed by means of echocardiography, however, in certain cases, inadequate acoustic window and an operator-dependent error, as well as not optimal reproducibility might limit its reliability [11][12][13]. On the other hand, the use of the so-called "gold" standard method, i.e.…”

Section: Discussionmentioning

confidence: 99%

Traditional, forgotten and new left ventricular systolic function parameters on a 64-row multidetector cardiac computed tomography: A reproducibility study

Sosnowski

Młynarski²,

Tendera³

2013

Cardiol J

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s). The derived parameters were calculated as the PER normalized for LVEDV (PER-V, 1/s), the PER normalized for LVM (PER-M, mL/g × s) and the PER normalized for LVEDV times the PER normalized for LVM product (PER-VM, ml/g × s 2 ). Considering the errors percentages, the respective values for intra-and inter-observer errors were around 5% and 8% for standard LV systolic measures. The percentage intra-observer errors For the independent reader the corresponding values were -15.2% and +15.5%, -12.3% and +16.3%, and -26.6% and +30.9%. The intra--class coeffi cients for repeated measurements for both the same reader (intra-observer) MDCT examinations. (Cardiol J 2013; 20, 4: 385-393)

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Reproducibility in echocardiographic assessment of the left ventricular global and regional function, the HUNT study

Cited by 117 publications

References 25 publications

Feasibility and Reproducibility of a Standard Protocol for 2D Speckle Tracking and Tissue Doppler-Based Strain and Strain Rate Analysis of the Fetal Heart

Feasibility and Reproducibility of a Standard Protocol for 2D Speckle Tracking and Tissue Doppler-Based Strain and Strain Rate Analysis of the Fetal Heart

Reference Values and Distribution of Conventional Echocardiographic Doppler Measures and Longitudinal Tissue Doppler Velocities in a Population Free From Cardiovascular Disease

Traditional, forgotten and new left ventricular systolic function parameters on a 64-row multidetector cardiac computed tomography: A reproducibility study

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