scholarly journals P19.01: Application of different frame rates in two-dimensional speckle-tracking in fetal echocardiography and their influence on strain analysis

2017 ◽  
Vol 50 ◽  
pp. 214-214
Author(s):  
C. Enzensberger ◽  
L. Rostock ◽  
F. Achterberg ◽  
O. Graupner ◽  
A. Wolter ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Fetal Echocardiography ◽  
Strain Analysis ◽  
Two Dimensional

Wall-motion tracking in fetal echocardiography-Influence of frame rate on longitudinal strain analysis assessed by two-dimensional speckle tracking

2017 ◽  
Vol 34 (6) ◽  
pp. 898-905 ◽  
Author(s):  
Christian Enzensberger ◽  
Friederike Achterberg ◽  
Oliver Graupner ◽  
Aline Wolter ◽  
Johannes Herrmann ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Motion Tracking ◽  
Longitudinal Strain ◽  
Wall Motion ◽  
Fetal Echocardiography ◽  
Strain Analysis ◽  
Frame Rate ◽  
Two Dimensional

scholarly journals 314 Automated left atrial volume measurement by two-dimensional speckle-tracking echocardiograpy. Feasibility, accuracy, and reproducibility

2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Diana Ruxandra Florescu ◽  
Luigi Paolo Badano ◽  
Michele Tomaselli ◽  
Camilla Torlasco ◽  
Georgica Tartea ◽  
...  
Keyword(s):  
Left Atrial ◽  
Speckle Tracking ◽  
Three Dimensional ◽  
Strain Analysis ◽  
Left Atrial Volume ◽  
Volume Measurement ◽  
Two Dimensional ◽  
Automated Measurement ◽  
Maximal Volume ◽  
Wide Range

Abstract Aims A by-product of left atrial (LA) strain analysis is the automated measurement of LA maximal volume (LAVmax), which may decrease the time of echocardiography reporting, and increase the reproducibility of the LAVmax measurement. However, the automated measurement of LAVmax by two-dimensional speckle-tracking analysis (2DSTE) has never been validated. Accordingly, we sought to: (i) assess the feasibility of automated LAVmax measurement by 2DSTE; (ii) compare the automated LAVmax by 2DSTE with conventional two-dimensional (2DE) biplane and three-dimensional echocardiography (3DE) measurements; and (iii) evaluate the accuracy and reproducibility of the three echocardiography techniques. Methods and results LAVmax (34–197 ml) were obtained from 198/210 (feasibility 94%) consecutive patients with various cardiac diseases (median age 67 years, 126 men) by 2DSTE, 2DE, and 3DE. 2DE and 2DSTE measurements resulted in similar LAVmax values (bias = 1.5 ml, limits of agreement, LOA ± 7.5 ml), and slightly underestimated 3DE LAVmax (biases = −5 ml, LOA ± 17 ml, and −6 ml, LOA ± 16 ml, respectively). LAVmax by 2DSTE and 2DE were strongly correlated to those obtained by cardiac magnetic resonance (CMR) (r = 0.946, and r = 0.935, respectively; P < 0.001). However, LAVmax obtained by 2DSTE (bias = −9.5 ml, LOA ± 16 ml) and 2DE (bias = −8 ml, LOA ± 17 ml) were significantly smaller than those measured by CMR. Conversely, 3DE LAVmax were similar to CMR (bias = −2 ml, LOA ± 10 ml). Excellent intra- and inter-observer intraclass correlations were found for 3DE (0.995 and 0.995), 2DE (0.990 and 0.988), and 2DSTE (0.990 and 0.989). Conclusions Automated LAVmax measurement by 2DSTE is highly feasible, highly reproducible, and provided similar values to conventional 2DE calculations in consecutive patients with a wide range of LAVmax.

scholarly journals P1546 Reproducibility of right atrial myocardial deformation by two-dimensional speckle tracking

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
K Shiino ◽  
Y Mori ◽  
N Kawasaki ◽  
C Nakashima ◽  
M Nakashima ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Heart Function ◽  
Strain Analysis ◽  
Correlation Coefficients ◽  
Medical System ◽  
Right Atrial ◽  
Two Dimensional ◽  
Philips Medical System ◽  
Right Heart Function ◽  
Expert And Novice

Abstract Background Right atrial (RA) deformation by two-dimensional speckle tracking echocardiography has a relatively new technique to evaluate right heart function with pulmonary hypertension and cardiomyopathy. Reproducibility between observers of this technique is important to develop into a robust and reliable tool. Experience may pose significant challenges. Purpose The aim of this study is to evaluate reproducibility of RA strain (global and regional) between novice and expert. Methods One hundred thirty-three patients (n = 133) underwent 2D-Speckle tracking derived RA strain analysis by 3 independent blinded readers (expert and 2 novices). The novice observers were medical interns with no prior experience in performing strain analysis. Echocardiographic images were acquired from iE33 (Philips Medical System) but were analysed offline using single vendor dependent software (QLAB version 11.0; Philips Medical System). The result of novice observer was calculated by the average of novice observers. RA strain parameters were assessed: global RA strain and segmental (Basal, Mid, Roof). Intraobserver and interobserver analyses were performed using intra class correlation coefficients (ICC) between expert and novice. Results Expert and novice observer demonstrated good interobserver reproducibility of global RA strain (ICC 0.88) and segmental parameters (Basal: ICC 0.89, Mid: ICC 0.87, Roof: ICC 0.84). Of all parameters, the basal segment of RA strain showed the greatest interobserver agreement. Intraobserver agreement for novice observer was excellent for global RA strain and segmental parameters (ICC > 0.88). Conclusions Global RA strain and segmental parameters were highly reproducible by novice and expert strain observer.

Two-Dimensional Speckle Tracking Strain Analysis for Efficacy Assessment of Myocardial Cell Therapy

2009 ◽  
Vol 18 (3) ◽  
pp. 361-370 ◽  
Author(s):  
Boris A. Nasseri ◽  
Marian Kukucka ◽  
Michael Dandel ◽  
Christoph Knosalla ◽  
Yeong-Hoon Choi ◽  
...  
Keyword(s):  
Cell Therapy ◽  
Speckle Tracking ◽  
Strain Analysis ◽  
Myocardial Cell ◽  
Two Dimensional ◽  
Efficacy Assessment

Left Ventricular Global Strain Analysis by Two-Dimensional Speckle-Tracking Echocardiography: The Learning Curve

2017 ◽  
Vol 30 (11) ◽  
pp. 1081-1090 ◽  
Author(s):  
Jonathan Chan ◽  
Kenji Shiino ◽  
Nchafatso G. Obonyo ◽  
Joseph Hanna ◽  
Robert Chamberlain ◽  
...  
Keyword(s):  
Learning Curve ◽  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Strain Analysis ◽  
Left Ventricular ◽  
Two Dimensional ◽  
Global Strain
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