Blood speckle imaging of a ventricular septal defect. Reproduced from Ultrasound in Medicine and Biology, Vol 40, Fadnes S, Nyrnes SA, Torp H & Lovstakken L, Shunt flow evaluation in congenital heart disease based on two-dimensional speckle tracking, Pages 2379–2391, Copyright (2014), with permission from Elsevier (34). View Video 10 at http://movie-usa.glencoesoftware.com/video/10.1530/ERP-18-0074/video-10.