Tissue Doppler, speckling tracking and four-dimensional echocardiographic assessment of right ventricular function in children with dilated cardiomyopathy

Figure 1 Three-dimensional echocardiographic reconstruction of the delineation of right ventricular ejection fraction. The endocardial border is traced throughout the cardiac cycle using speckle tracking, and the software automatically locates end-systolic and end-diastolic frames. Example of a four-dimensional echocardiographic reconstruction of the delineation of the right ventricle seen from the septal side (end-diastolic volume 68.8 mL, end-systolic volume 16.9 mL, and ejection fraction 75.5%). The mesh is the right ventricle at end-diastole, in green at end-systole. The pulmonary valve is shown in white on the upper left side, the tricuspid valve is shown on the upper right side, and the right ventricular apex toward the bottom.