Table 3.

Intra-class correlation and correlation of CMR tagging versus CMR feature tracking and CMR tagging versus speckle tracking echocardiography

	CMR-TAG vs. CMR-FT (n = 27)		CMR-TAG vs. STE (n = 27)
	ICC (95% CI)	R	ICC (95% CI)	R
Basic strain septum
(1) AVC strain septum (%)	0.55 (0.09–0.79)	0.67‡	0.23 (− 0.10–0.56)	0.47*
(2) Peak strain septum (%)	0.58 (0.26–0.78)	0.55†	0.155 (− 0.10–0.45)	0.42*
(3) TTPmax septum (ms)	0.17 (− 0.11–0.47)	0.11	0.00 (− 0.15–0.22)	− 0.16
(4) Systolic strain rate septum (%/s)	0.56 (0.16–0.79)	0.66‡	0.25 (− 0.10–0.57)	0.45*
(5) Diastolic strain rate septum (%/s)	0.64 (0.35–0.82)	0.66‡	0.34 (− 0.05–0.635)	0.50†
Basic strain lateral wall
(1) AVC strain lateral (%)	0.50 (0.16–0.74)	0.50†	0.08 (− 0.27–0.43)	0.10
(2) Peak strain lateral (%)	0.54 (0.22–0.76)	0.59†	0.01 (− 0.31–0.36)	0.02
(3) TTPmax lateral (ms)	0.34 (0.00–0.63)	0.40*	0.13 (− 0.12–0.41)	0.23
(4) Systolic strain rate lateral (%/s)	0.575 (0.26–0.78)	0.58†	0.05 (− 0.35–0.42)	0.05
(5) Diastolic strain rate lateral (%/s)	0.82 (0.65–0.91)	0.82‡	0.23 (− 0.08–0.53)	0.38
Dyssynchrony
(a) Onset-delay (ms)	0.42 (0.05–0.69)	0.23	0.024 (− 0.37–0.40)	− 0.08
(b) Peak-delay (ms)	0.45 (0.045–0.715)	0.46*	0.23 (− 0.09–0.53)	0.27
(c) TTPSD (ms)	0.46 (0.11–0.71)	0.49†	0.20 (− 0.20–0.54)	0.19
Regional discoordination
(d) SRSsept (%)	0.41 (− 0.06–0.72)	0.65‡	0.30 (− 0.05–0.60)	0.41*
(e) SSI (%)	0.58 (0.00–0.83)	0.68‡	0.55 (0.02–0.81)	0.70‡
(f) ISFsep–lat	0.53 (0.10–0.77)	0.45*	0.46 (− 0.06–0.76)	0.69‡
Discoordination total LV
(h) ISFLV	0.55 (0.15–0.78)	0.66‡	0.32 (− 0.02–0.61)	0.42*
(i) CURE	0.485 (0.145–0.725)	0.37	0.41 (0.06–0.67)	0.36

CI confidence interval, ICC intra-class correlation coefficient, R correlation coefficient, for other abbreviations see Table 2

P values for statistical significance of R-values are given with: *p value < 0.05, ^†p value < 0.01, ^‡p value < 0.001