scholarly journals Feasibility and reference values of left atrial longitudinal strain imaging by two-dimensional speckle tracking

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Matteo Cameli ◽  
Maria Caputo ◽  
Sergio Mondillo ◽  
Piercarlo Ballo ◽  
Elisabetta Palmerini ◽  
...  
Keyword(s):  
Reference Values ◽  
Left Atrial ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Strain Imaging ◽  
Two Dimensional

Reference Values of Right Atrial Longitudinal Strain Imaging by Two-Dimensional Speckle Tracking

2011 ◽  
Vol 29 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Margherita Padeletti ◽  
Matteo Cameli ◽  
Matteo Lisi ◽  
Angela Malandrino ◽  
Valerio Zacà ◽  
...  
Keyword(s):  
Reference Values ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Strain Imaging ◽  
Right Atrial ◽  
Two Dimensional

Abstract 14760: Right Ventricular Function in Preterm Neonates: Reference Values for Longitudinal Strain by Two-dimensional Speckle Tracking Echocardiography From Birth to One Year of Life

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Philip T Levy ◽  
Meghna D Patel ◽  
Mark R Holland ◽  
Timothy J Sekarski ◽  
Amit Mathur ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Premature Infants ◽  
Reference Values ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Systolic Function ◽  
Free Wall ◽  
Two Dimensional ◽  
One Year

Introduction: Right ventricle (RV) systolic function is an important determinant of cardiopulmonary outcomes in premature infants. Two-dimensional speckle tracking echocardiography (2DSTE) derived myocardial strain is a reliable measure of RV systolic function in premature infants, but lacks reference values for clinical application in premature infants. We aimed to determine the maturational (age- and weight- related) changes in RV strain to establish reference values in preterm infants from birth to one year corrected age (CA). Methods: RV peak global longitudinal strain (pGLS) and RV free wall longitudinal strain (FWLS) were measured in a prospective longitudinal study in 115 preterm infants (< 29 weeks at birth) at 24 and 72 hours of age (HOA), 32 and 36 weeks postmenstrual age (PMA), and one year (CA) by 2DTSE (GE EchoPac) from a RV-focus apical 4-chamber view using a validated protocol. Premature infants that developed chronic lung disease or had a hemodynamically significant PDA were excluded (n=65) from analysis for the reference values. Results: RV pGLS ranged from -16% at birth to -26% by one year CA and RV FWLS ranged from -18% at birth to -27% to one year CA in healthy preterm infants. RV pGLS and FWLS strain correlated with increasing weight (r=0.87, p < 0.001), PMA in weeks (r=0.85, p < 0.001; r=0.83, p < 0.001), but were independent of gestational age at birth (r=0.4, p=0.38; r=0.3, p=0.5). RV strain was significantly lower in preterm infants with bronchopulmonary dysplasia (p=0.004) at 32 and 36 weeks PMA, and one year CA (Figure). RV strain was independent of gender or need for mechanical ventilation. Conclusions: This study establishes reference values of RV global and free wall longitudinal strain and tracks their postnatal maturational changes in preterm infants. These measures increase from birth to one year CA and are linearly associated with increasing weight reflecting the postnatal cardiac growth as a contributor to the maturation of RV function.

Assessment of inter-atrial, inter-ventricular, and atrio-ventricular interactions in tetralogy of Fallot patients after surgical correction. Insights from two-dimensional speckle tracking and three-dimensional echocardiography

2014 ◽  
Vol 25 (7) ◽  
pp. 1254-1262 ◽  
Author(s):  
Mohamed Abd El Rahman ◽  
Tanja Raedle-Hurst ◽  
Axel Rentzsch ◽  
Hans-Joachim Schäfers ◽  
Hashim Abdul-Khaliq
Keyword(s):  
Ejection Fraction ◽  
Tetralogy Of Fallot ◽  
Left Atrial ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Three Dimensional ◽  
Right Atrial ◽  
Two Dimensional ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography

AbstractBackground: We aimed to assess biatrial size and function, interactions on atrial and ventricular levels, and atrio-ventricular coupling in patients after tetralogy of Fallot repair. Methods: A total of 34 patients with a mean age of 20.9±9 years, and 35 healthy controls, underwent two-dimensional speckle tracking echocardiography for ventricular and atrial strain measurements and real-time three-dimensional echocardiography to assess ventricular and atrial volumes. Results: When compared with controls, tetralogy of Fallot patients had significantly reduced right atrial peak atrial longitudinal strain (p<0.01), right atrial peak atrial contraction strain (p<0.01), right atrial ejection fraction (p<0.01), left atrial peak atrial longitudinal strain (p<0.01), left atrial peak atrial contraction strain (p<0.05), and left atrial ejection fraction (p<0.01). In the tetralogy of Fallot group, left ventricular ejection fraction was negatively related to the right ventricular end-systolic volume normalised to body surface area (r=−0.62, p<0.01). An association was found in patients between the right atrial peak longitudinal strain and mean right ventricular strain (r=0.64, p<0.01). In patients, the left atrial peak longitudinal strain correlated negatively with right atrial end-diastolic volume normalised to body surface area (r=−0.67, p<0.01), whereas the left atrial ejection fraction correlated weakly with left ventricular ejection fraction (r=0.41, p<0.05). Conclusions: In asymptomatic tetralogy of Fallot patients, biatrial dysfunction exists and can be quantified via two-dimensional speckle tracking echocardiography as well as real-time three-dimensional echocardiography. Different forms of interactions on atrial and ventricular levels are evident among such cohorts.

scholarly journals Assessment of left atrial function in feline hypertrophic cardiomyopathy by using two- dimensional speckle tracking echocardiography

2020 ◽  
Author(s):  
Arisara Kiatsilapanan ◽  
Sirilak Surachetpong
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Left Atrial ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Mean Value ◽  
Control Group ◽  
P Value ◽  
Two Dimensional ◽  
The Difference

Abstract Background : Left atrial (LA) function plays an important role in diastolic dysfunction in cats with hypertrophic cardiomyopathy (HCM). Two-dimensional speckle tracking echocardiography (2D-STE) is a novel technique for assessing LA function. This study aimedto evaluate changes in the LA function inHCM cats compared to normal cats, using 2D-STE. Results: Seventeen client-owned cats affected with HCM and twenty healthy control cats. Conventional echocardiographic and 2D-STE variables were measured and compared between groups (the normal and HCM groups). The difference between two groups was compared by using the independent Student’s t-test. A p -value less than 0.05 was considered significant. Variability from the 2D-STE variables tests displayed good reproducibility (coefficient of variation ≤15%). The mean value of peak atrial longitudinal strain (PALS) in the HCM group (13.16 ± 8.64) was lower in the control group (28.54 ±10.31) ( p < 0.001). PALS was lowest at the LA roof region. The atrial longitudinal strain of septal and lateral regions was significantly lower in the HCM group than the normal group. PALS correlated with the percentage of the LA fractional shortening (LA-FS) (r=0.538, p =0.001), the percentage of the LA ejection fraction (LA-EF) (r =0.797, p <0.001), and the LA fractional area change (FAC) (r =0.746, p <0.001). Conclusions: PALS can be used to evaluate changes in theLA function in HCM cats. It is a reproducible method for assessing the LA function in cats affected with HCM. Keywords cats; heart; left atrium; strain

scholarly journals Assessment of left atrial function in feline hypertrophic cardiomyopathy by using two- dimensional speckle tracking echocardiography

2020 ◽  
Author(s):  
Arisara Kiatsilapanan ◽  
Sirilak Surachetpong
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Left Atrial ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Mean Value ◽  
Control Group ◽  
P Value ◽  
Two Dimensional ◽  
The Difference

Abstract Background : Left atrial (LA) function plays an important role in diastolic dysfunction in cats with hypertrophic cardiomyopathy (HCM). Two-dimensional speckle tracking echocardiography (2D-STE) is a novel technique for assessing LA function. This study aimedto evaluate changes in the LA function inHCM cats compared to normal cats, using 2D-STE. Results: Seventeen client-owned cats affected with HCM and twenty healthy control cats. Conventional echocardiographic and 2D-STE variables were measured and compared between groups (the normal and HCM groups). The difference between two groups was compared by using the independent Student’s t-test. A p -value less than 0.05 was considered significant. Variability from the 2D-STE variables tests displayed good reproducibility (coefficient of variation ≤15%). The mean value of peak atrial longitudinal strain (PALS) in the HCM group (13.16 ± 8.64) was lower in the control group (28.54 ±10.31) ( p < 0.001). PALS was lowest at the LA roof region. The atrial longitudinal strain of septal and lateral regions was significantly lower in the HCM group than the normal group. PALS correlated with the percentage of the LA fractional shortening (LA-FS) (r=0.538, p =0.001), the percentage of the LA ejection fraction (LA-EF) (r =0.797, p <0.001), and the LA fractional area change (FAC) (r =0.746, p <0.001). Conclusions: PALS can be used to evaluate changes in theLA function in HCM cats. It is a reproducible method for assessing the LA function in cats affected with HCM.

scholarly journals Clinical implication of disturbed left atrial phasic functions in the heterogeneous population associated with hypertension or atrial fibrillation

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Mengruo Zhu ◽  
Haiyan Chen ◽  
Yang Liu ◽  
Xianhong Shu
Keyword(s):  
Atrial Fibrillation ◽  
Differential Diagnosis ◽  
Healthy Subjects ◽  
Left Atrial ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Heterogeneous Population ◽  
Two Dimensional ◽  
Hypertensive Patients

Abstract Background To evaluate left atrial (LA) phasic functions in patients with hypertension and/or paroxysmal atrial fibrillation (PAF) and its clinical significance. Methods LA strain was studied in 77 patients (25 hypertension, 24 lone AF, and 28 with both hypertension and PAF) and 28 controls using two-dimensional speckle-tracking echocardiography (2D STE). The following indexes during atrial reservoir, conduit and pump phase were analyzed respectively: (1) peak atrial longitudinal strain (PALS) and strain rate (PALSR), (2) the standard deviation of time to PALS and PALSR of all LA segments (TpS-SD% and TpSR-SD%). Results Compared with controls, PALSres, PALScond and PALSRcond were significantly reduced in patients with isolated hypertension (all P < 0.01) but no significant differences were observed in PALSpump, PALSRpump and TpSpump-SD% between them (all P > 0.05). PALSpump, PALSRpump and PALSRres were significantly lower in patients with both hypertension and PAF than in those with isolated hypertension (all P < 0.05). PALS and PALSR were significantly decreased, and TpS-SD% was significantly increased during each phase in lone AF patients than in controls (all P < 0.05), and PALSRpump was further depressed in patients with both hypertension and PAF (P = 0.029). PALSRcond ≤ 1.475 s− 1 combined with TpSpump-SD% ≥ 3.25% (sensitivity, 85%; specificity, 71%; AUC = 0.845, P < 0.001) could distinguish lone AF from healthy subjects effectively, while in hypertensive patients, PALSpump ≤ 14.2% was found to be an independent differentiator for occurrence of AF or not with sensitivity of 81% and specificity of 84% (AUC = 0.838, P < 0.001). LAVI≥29.3 mL/m2 was an independent characteristic for reflecting different LA remodeling in lone AF or hypertension with AF. Conclusions The impairment of LA phasic functions was varied in patients with hypertension and/or AF. The disturbed LA phasic functions were proved to have independent abilities of differential diagnosis in this heterogeneous population associated with hypertension or AF.

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