Quantification of the RV volumes and EF in a patient with transposition of great arteries post atrial switch repair (systemic RV). (A) A software package is used for the assessment of 3DE volumes and EF of the systemic RV. First step includes alignment of the 3DE full-volume data set. (B) At the second step, endocardial contours are placed at end-diastole and end-systole by the software, and manual adjustment is allowed if necessary for correct contouring of the RV walls and including RV trabeculation and moderator band into the blood pool. (C) Final results include systemic RV volumes, EF, and longitudinal strain, as well as volumetric curve of the RV during cardiac cycle, and surface-rendered dynamic model of the systemic RV.