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Two-dimensional and Doppler parameters of RV function. (A) RV FAC derived using end-diastolic (RVAd) and end-systolic (RVAs) areas. (B) TAPSE measured with M-Mode (red arrow). (C) TV annular peak systolic velocity (S’) using TDI. (D) MPI derived from RV systolic ejection time, isovolumetric contraction time (IVCT), and isovolumetric relation time (IVRT) using TDI, where MPI = (IVCT + IVRT)/ET. (E) VVI derived three-segment and six-segment RV longitudinal strains.
