Evaluation of Circumferential and Longitudinal Strain in a Rabbit Fetal Heart Model Using 4D Echocardiography

2013 ◽  
Author(s):  
Vineet Apte ◽  
Lydia Tam ◽  
Angela Han ◽  
Meihua Zhu ◽  
Muhammad Ashraf ◽  
...  
Keyword(s):  
Longitudinal Strain ◽  
Fetal Heart ◽  
Heart Model

scholarly journals EVALUATION OF CIRCUMFERENTIAL AND LONGITUDINAL STRAIN IN A RABBIT FETAL HEART MODEL USING 4D ECHOCARDIOGRAPHY

2014 ◽  
Vol 63 (12) ◽  
pp. A1192
Author(s):  
David J. Sahn ◽  
Angela Han ◽  
Lydia Tam ◽  
Vineet Apte ◽  
Zhijun Zhang ◽  
...  
Keyword(s):  
Longitudinal Strain ◽  
Fetal Heart ◽  
Heart Model

scholarly journals Quantitative evaluation of fetal ventricular function by speckle tracking echocardiography

2021 ◽  
Author(s):  
Ling Luo ◽  
Hanmin Liu ◽  
Shu Zhou ◽  
Fuming Zhao ◽  
Qi Zhu ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Fetal Heart ◽  
Global Longitudinal Strain ◽  
Heart Rhythm ◽  
Left Ventricular ◽  
Negative Group ◽  
Fetal Abnormality ◽  
Positive Group

Methods The study included 59 patients with normal fetal heart structure, blood flow, and heart rhythm (fetal abnormality-negative group) and 50 patients with abnormal fetal heart structure, blood flow, and/or heart rhythm (fetal abnormality-positive group). aCMQ was performed in both groups to obtain left and right ventricular endocardial global longitudinal strain (GLSendo), mid-myocardial global longitudinal strain (GLSmid), and epicardial global longitudinal strain (GLSepi). Parameters between the two groups were compared and correlation analyses performed. A deformation analysis was performed by two trained observers, and reproducibility was assessed. Results The fetal left ventricular and right ventricular global longitudinal strain (LV-GLS and RV-GLS, respectively) decreased in a gradient from the endocardium to the epicardium. LV-GLS and RV-GLS of all myocardial layers were lower in the fetal abnormality-positive than -negative group (all P<0.05). Correlation analysis showed that neither LV-GLS nor RV-GLS was significantly correlated with gestational age in the fetal abnormality-negative group (all P>0.05), whereas left ventricular GLSendo, GLSmid, and GLSepi were negatively correlated with gestational age in the fetal abnormality-positive group (r=−0.39 to −0.44, all P<0.05). Repeatability testing showed that the inter-observer and intra-observer intraclass correlation coefficients for LV-GLS and RV-GLS in each myocardial layer were >0.75 (all P<0.001). Conclusions As a new speckle tracking echocardiography tool, aCMQ has feasibility and repeatability in evaluating myocardial deformation of the fetal ventricle. This technique might provide helpful information on ventricular myocardial deformation in fetal hearts with abnormal structure or rhythm for clinical guidance in pregnancy.

Evaluation of Stroke Volume and Ventricular Mass in a Fetal Heart Model: A Novel Four-Dimensional Echocardiographic Analysis

2014 ◽  
Vol 31 (9) ◽  
pp. 1138-1145 ◽  
Author(s):  
Meihua Zhu ◽  
Cole Streiff ◽  
Jill Panosian ◽  
David Roundhill ◽  
Michael Lapin ◽  
...  
Keyword(s):  
Stroke Volume ◽  
Fetal Heart ◽  
Heart Model ◽  
Ventricular Mass

scholarly journals VP15.21: Feasibility and efficacy of longitudinal strain measurement in fetal heart using two‐dimensional tissue tracking

2020 ◽  
Vol 56 (S1) ◽  
pp. 118-118
Author(s):  
S. Miyashita ◽  
S. Ochiai ◽  
C. Sakamoto ◽  
E. Motegi ◽  
K. Tada ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Longitudinal Strain ◽  
Fetal Heart ◽  
Two Dimensional ◽  
Tissue Tracking
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