scholarly journals Reference Ranges and Regional Patterns of Left Ventricular Strain and Strain Rate Using Two-Dimensional Speckle-Tracking Echocardiography in a Healthy Middle-Aged Black and White Population: The CARDIA Study

2017 ◽  
Vol 30 (7) ◽  
pp. 647-658.e2 ◽  
Author(s):  
Henrique T. Moreira ◽  
Chike C. Nwabuo ◽  
Anderson C. Armstrong ◽  
Satoru Kishi ◽  
Ola Gjesdal ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
Reference Ranges ◽  
Two Dimensional ◽  
White Population ◽  
Regional Patterns ◽  
Left Ventricular Strain ◽  
Black And White ◽  
Strain And Strain Rate

scholarly journals Impact of acute hyperglycemia on layer-specific left ventricular strain in asymptomatic diabetic patients: an analysis based on two-dimensional speckle tracking echocardiography

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Jelena Bogdanović ◽  
Milika Ašanin ◽  
Gordana Krljanac ◽  
Nebojša M. Lalić ◽  
Aleksandra Jotić ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
Diabetic Patients ◽  
Two Dimensional ◽  
Left Ventricular Strain ◽  
Acute Hyperglycemia

Two-dimensional speckle tracking echocardiography demonstrates no effect of active acromegaly on left ventricular strain

Pituitary ◽  
2017 ◽  
Vol 20 (3) ◽  
pp. 349-357 ◽  
Author(s):  
I. C. M. Volschan ◽  
L. Kasuki ◽  
C. M. S. Silva ◽  
M. L. Alcantara ◽  
R. M. Saraiva ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
Two Dimensional ◽  
Left Ventricular Strain ◽  
Active Acromegaly

scholarly journals The influence of acute unloading on left ventricular strain and strain rate by speckle tracking echocardiography in a porcine model

2016 ◽  
Vol 310 (10) ◽  
pp. H1330-H1339 ◽  
Author(s):  
Geir Olav Dahle ◽  
Lodve Stangeland ◽  
Christian Arvei Moen ◽  
Pirjo-Riitta Salminen ◽  
Rune Haaverstad ◽  
...  
Keyword(s):  
Strain Rate ◽  
Speckle Tracking ◽  
Circumferential Strain ◽  
Speckle Tracking Echocardiography ◽  
Radial Strain ◽  
Left Ventricular ◽  
Conductance Catheter ◽  
Left Ventricular Strain ◽  
End Diastolic Volume ◽  
Strain And Strain Rate

Noninvasive measurements of myocardial strain and strain rate by speckle tracking echocardiography correlate to cardiac contractile state but also to load, which may weaken their value as indices of inotropy. In a porcine model, we investigated the influence of acute dynamic preload reductions on left ventricular strain and strain rate and their relation to the pressure-conductance catheter-derived preload recruitable stroke work (PRSW) and peak positive first derivative of left ventricular pressure (LV-dP/d tmax). Speckle tracking strain and strain rate in the longitudinal, circumferential, and radial directions were measured during acute dynamic reductions of end-diastolic volume during three different myocardial inotropic states. Both strain and strain rate were sensitive to unloading of the left ventricle ( P < 0.001), but the load dependency for strain rate was modest compared with strain. Changes in longitudinal and circumferential strain correlated more strongly to changes in end-diastolic volume ( r = −0.86 and r = −0.72) than did radial strain ( r = 0.35). Longitudinal, circumferential, and radial strain significantly correlated with LV-dP/d tmax ( r = −0.53, r = −0.46, and r = 0.86), whereas only radial strain correlated with PRSW ( r = 0.55). Strain rate in the longitudinal, circumferential and radial direction significantly correlated with both PRSW ( r = −0.64, r = −0.58, and r = 0.74) and LV-dP/d tmax ( r = −0.95, r = −0.70, and r = 0.85). In conclusion, the speckle tracking echocardiography-derived strain rate is more robust to dynamic ventricular unloading than strain. Longitudinal and circumferential strain could not predict load-independent contractility. Strain rates, and especially in the radial direction, are good predictors of preload-independent inotropic markers derived from conductance catheter.

Effect of Through-Plane and Twisting Motion on Left Ventricular Strain Calculation: Direct Comparison between Two-Dimensional and Three-Dimensional Speckle-Tracking Echocardiography

2013 ◽  
Vol 26 (11) ◽  
pp. 1274-1281.e4 ◽  
Author(s):  
Victor Chien-Chia Wu ◽  
Masaaki Takeuchi ◽  
Kyoko Otani ◽  
Nobuhiko Haruki ◽  
Hidetoshi Yoshitani ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Two Dimensional ◽  
Left Ventricular Strain ◽  
Strain Calculation

Two-dimensional speckle tracking echocardiography showed a slight impairment of left ventricular deformability in acromegalic patients at diagnosis and during follow-up

2018 ◽  
Author(s):  
Claudio Urbani ◽  
Iacopo Fabiani ◽  
Valeria Siciliano ◽  
Daniele Cappellani ◽  
Michele Mantuano ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
Two Dimensional
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