Table 3. Strain Parameters by Feature Tracking.

	Control (n = 15)	Group 1 (n = 8)	Group 2 (n = 32)	P
2D PRS (%)
Basal*†	40.5 (35.7, 45.2)	45.8 (39.3, 52.3)	15.6 (12.5, 18.6)	< 0.001
Mid*†	40.2 (35.5, 44.8)	42.3 (35.1, 49.6)	16.7 (13.7, 19.8)	< 0.001
Apical*†	53.4 (46.4, 60.4)	47.3 (35.9, 58.7)	26.9 (23.8, 29.9)	< 0.001
Global*†	41.8 (37.9, 45.7)	44.2 (38.4, 49.9)	19.9 (17.1, 22.6)	< 0.001
2D PCS (%)
Basal*†	-19.8 (-21.5, -18.1)	-19.2 (-21.9, -16.6)	-9.7 (-11.1, -8.2)	< 0.001
Mid*†	-21.2 (-22.8, -19.5)	-20.5 (-23.1, -17.9)	-10.9 (-12.3, -9.5)	< 0.001
Apical*†	-24.4 (-26.1, -22.6)	-21.8 (-24.4, -19.1)	-15 (-16.4, -13.5)	< 0.001
Global*†	-20.7 (-22.7, -18.7)	-20.8 (-23.1, -18.4)	-11.8 (-13.1, -10.6)	< 0.001
2D PLS (%)
Global*†	-18.1 (-19.9, -16.2)	-14.5 (-16.6, -12.4)	-9.2 (-10.3, -8.1)	0.001

Data are presented as mean (95% confidence interval). ^*Statistical significance between groups 1 and 2, ^†Statistical significance between group 1 and the control group. PCS = peak circumferential strain, PLS = peak longitudinal strain, PRS = peak radial strain, 2D = two-dimensional