Journal: European Heart Journal. Digital Health

Article Title: CardiacField: computational echocardiography for automated heart function estimation using two-dimensional echocardiography probes

doi: 10.1093/ehjdh/ztae072

Figure Lengend Snippet: A three-dimensional dynamic heart within one cardiac cycle. We show some snapshots of a reconstructed three-dimensional dynamic heart within one cardiac cycle using CardiacField, compared with that acquired by the three-dimensional echocardiography probe. The electrocardiogram is used to indicate the phases within one cardiac cycle.

Article Snippet: Similarly, RV volumes and EFs were assessed using RV-focused 3D echocardiography (4D RV-Function, TomTec Imaging).

Techniques:

Journal: Acta Cardiologica Sinica

Article Title: Right Ventricular Pump Efficiency in Secundum-Type Atrial Septal Defect

doi: 10.6515/ACS.202201_38(1).20210721A

Figure Lengend Snippet: Calculation of right ventricular pump efficiency. Three-dimensional echocardiography derived volumetric analysis yielded left ventricular stroke volume (A) and right ventricular volume to time curve (B). Conjugation of tricuspid regurgitation pressure gradient envelope (C) and right ventricular volume-to-time curve generates the pressure gradient-volume diagram (D) and the area under the curve is used to calculate the right ventricular stroke work (E). Right ventricular pump efficiency is calculated as left ventricular stroke volume divided by right ventricular stroke work.

Article Snippet: 27 - 29 The 3D echocardiographic datasets were analyzed offline with modules for LV and RV volumetric analyses (Modules of 4D LV-Analysis 3.1 and 4D RV-Function 2.0, TTA 2.3, TomTec Imaging Systems, Unterschleissheim, Germany) to report left ventricular end-diastolic volume index (LVEDVi), left ventricular end-systolic volume index (LVESVi), left ventricular stroke volume index (LVSVi), left ventricular ejection fraction (LVEF), left ventricular global longitudinal strain (LVGLS), left ventricular global circumferential strain (LVGCS), right ventricular end-diastolic volume index (RVEDVi), right ventricular end-systolic volume index (RVESVi), RVEF, peak systolic longitudinal right ventricular free wall strain (RVLSfw) and peak systolic longitudinal right ventricular septal wall strain (RVLSsep). illustrates the non-invasive calculation of single-beat RV pump efficiency.

Techniques: Derivative Assay, Conjugation Assay

Journal: Pediatric Research

Article Title: Right to left ventricular volume ratio is associated with mortality in congenital diaphragmatic hernia

doi: 10.1038/s41390-022-02430-z

Figure Lengend Snippet: Demographic and CDH characteristics, and treatment, outcomes, hemodynamic, and echocardiographic data within 24 h after birth in CDH survivors and CDH non-survivors.

Article Snippet: The 3D echocardiography analysis for LV and RV volume measurements was performed by an experienced investigator (K Toyoshima) using a novel 3D echocardiography software (4D LV-Analysis version 3, 4D RV-Function version 3; TomTec Imaging Systems, Unterschleissheim, Germany) for which the accuracy and reproducibility have been extensively validated by comparison with CMR.

Techniques:

Journal: Pediatric Research

Article Title: Right to left ventricular volume ratio is associated with mortality in congenital diaphragmatic hernia

doi: 10.1038/s41390-022-02430-z

Figure Lengend Snippet: Univariate logistic regression analyses of the predictive ability of the echocardiographic indices within 24 h after birth for mortality.

Article Snippet: The 3D echocardiography analysis for LV and RV volume measurements was performed by an experienced investigator (K Toyoshima) using a novel 3D echocardiography software (4D LV-Analysis version 3, 4D RV-Function version 3; TomTec Imaging Systems, Unterschleissheim, Germany) for which the accuracy and reproducibility have been extensively validated by comparison with CMR.

Techniques: