Right Ventricular Flow Dynamics in Dilated Right Ventricles: Energy Loss Estimation Based on Blood Speckle Tracking Echocardiography—A Pilot Study in Children

Using blood speckle tracking (BST) based on high-frame-rate echocardiography (HFRE), we compared right ventricle (RV) flow dynamics in children with atrial septal defects (ASDs) and repaired tetralogy of Fallot (rTOF). Fifty-seven rTOF severe pulmonary insufficiency (PI) (n = 21), large ASDs 11) healthy controls (CTL, n 25) were included. a phantom, studied the effects imaging plane smoothing parameters 2-D energy loss (EL). RV diastolic EL was similar ASD rTOF, but both greater than CTL. Locations high all groups systole, occurring outflow tract around tricuspid valve leaflets early diastole. An additional apical area noted corresponding to colliding inflow PI. The phantom revealed that varied settings trend preserved if kept consistent.