Fig. 6

Accuracy heatmap of each model (MVnet) trained on each training set and evaluated on each test set by the mean a Euclidean and b angular distance error, and the agreement with ICC in c MV displacement, d MAPSE, and e LV e’. The output of \({{\text{MVnet}}_{\text{Mixed}}}\) consistently achieved the best accuracy and was chosen for the proposed model. ICC intra-class correlation coefficient, MV mitral valve, MAPSE mitral annular plane systolic excursion, LV left ventricle