Figure 5.

Example of delineation of a patient with pulmonary hypertension in end-diastole. Box, line, and color descriptions are the same as in Fig. 4. (A) The right ventricle is enlarged and the trabeculation is hypertrophied. Trabeculations are included in the volume. The septum is flattened, even in diastole, in the short-axis images. (B) The three-dimensional echocardiographic representation (end-diastolic volume 200 ml, end-systolic volume 137 ml, ejection fraction 31%) shows an enlarged right ventricle with a flattened septum in diastole (mesh) and even more so in systole (green). Both the longitudinal and lateral functions appear to be altered. Data were processed using a dedicated software (4D RV-Function, TomTec Imaging Systems). See also Video 2.