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. 2020 Nov 29;9(12):3882. doi: 10.3390/jcm9123882

Figure 2.

Figure 2

Intra- and Inter-observer variability of different approaches for strain assessment. Bland–Altman analysis showing low intra- and inter-observer variability for FT-GLS (Panels A and B), TT-GLS (Panels C and D), and fast manual LAS (Panes E and F). Red line = mean absolute difference; Black, dotted lines = 95% confidence interval. CoV = Coefficient of variation; FT = feature tracking; GLS = global longitudinal strain; ICC = Intraclass correlation coefficient; LAS = long-axis strain; TT = tissue tracking.