Table 4.

Intra- and inter-observer reproducibility of the measurements of myocardial and skeletal mapping characteristics in IIM patients

	Bias	95% LOA	CoV (%)	ICC
Intra-observer
Native T1-myo (ms)	−4.7	(− 34.5–25.1)	0.86	0.99
T2 mapping-myo (ms)	0.3	(−1.3–1.8)	1.28	0.99
ECV-myo (%)	−0.4	(− 2.2–1.3)	2.19	0.99
Native T1-sk (ms)	− 9.0	(−83.5–65.5)	2.12	0.98
T2 mapping-sk (ms)	−0.2	(− 2.6–2.1)	2.81	0.96
ECV-sk (%)	−0.1	(−2.7–2.6)	2.71	0.99
Inter-observer
Native T1-myo (ms)	−5.1	(−39.2–29.0)	0.98	0.98
T2 mapping-myo (ms)	0.3	(−1.5–2.1)	1.51	0.98
ECV-myo (%)	−0.2	(−1.8–1.3)	1.80	0.98
Native T1-sk (ms)	−10.8	(−126.6–118.3)	3.52	0.93
T2 mapping-sk (ms)	−0.2	(−3.8–3.2)	4.43	0.91
ECV-sk (%)	0.3	(−2.7–3.4)	3.17	0.99

Abbreviation: LOA limit of agreement, CoV coefficient of variation, ICC intraclass correlation coefficients, CI confidence intervals, ECV extracellular volume fraction