NOVEL THREE DIMENSIONAL STRAIN ANALYSIS IN THE MEASUREMENT OF LV VENTRICULAR FUNCTION : HEAD TO HEAD COMPARISON BETWEEN 2 D AND 3 D SPECKLE TRACKING ECHOCARDIOGRAPHY ACC Moderated Poster Contributions

Results: In overall subjects, global longitudinal strain (LS) determined by 2D and 3D were well correlated (R=0.84, p<0.001). However, only weak correlation was found in each segment of apical walls, but the correlation coefficients of mid wall segments were modest. Moreover, each segment of basal walls showed poor correlation between 2D and 3D STE values ,and LS of averaged basal 6 segments were not statistically correlated between 2D and 3D STE. However, correlation between 2D and 3D STE in terms of averaged mid wall 6 segments (R=0.83, p<0.001) and averaged apical 4 segments (R=0.69, p<0.001) were excellent