Table 4.

Results of the reproducibility analysis, reported in terms of intraclass correlation coefficient (ICC) and Coefficient of Variation (CoV)

		ICC (95%CI)	p	CoV (±SD)
Intra-Observer Reproducibility	STE-FWLS	0.94 (0.79–0.99)	< 0.001	0.07 (0.03)
	STE-GLS	0.93 (0.75–0.98)	< 0.001	0.08 (0.06)
	SENC	0.91 (0.71–0.98)	< 0.001	0.04 (0.03)
	Sub-FT	0.96 (0.85–0.99)	< 0.001	0.06 (0.05)
	Myo-FT	0.88 (0.50–0.97)	0.003	0.12 (0.10)
Inter-Observer Reproducibility	STE-FWLS	0.93 (0.75–0.98)	< 0.001	0.07 (0.03)
	STE-GLS	0.92 (0.72–0.98)	< 0.001	0.06 (0.06)
	SENC	0.90 (0.66–0.98)	< 0.001	0.04 (0.02)
	Endo-FT	0.62 (−0.22–0.91)	0.002	0.29 (0.11)
	Myo-FT	0.67 (−0.16–0.93)	< 0.001	0.30 (0.12)

Abbreviations: GLS Global longitudinal strain, FWLS Free wall longitudinal strain, STE Speckle tracking echocardiography, SENC Strain-encoding, FT Feature tracking, Endo-FT Subendocardial strain determined using FT, Myo-FT Midmyocardial strain determined using FT, ICC Intraclass correlation coefficient, CI Confidence interval, CoV Coefficient of variation, SD Standard deviation