Table 2.

Showing interscan reproducibility

Interstudy reproducibility
	Basal	Repeat	Mid	Repeat	Native T 1 mapping	Post Gd mapping	Partition coefficient	ECV
					ICC p value	ICC p value	ICC p value	ICC p value
Model A			x		0.90 P < 0.001	0.72 p = 0.014	0.53 p = 0.098	0.84 p = 0.001
Model B	x				0.84 p = 0.001	0.68 p = 0.018	0.4 p = 0.17	0.75 p = 0.006
Model C			x	x	0.88 p < 0.001	0.82 p = 0.002	0.81 p = 0.002	0.94 p < 0.001
Model D	x	x			0.80 p = 0.001	0.75 p = 0.006	0.66 p = 0.024	0.88 p < 0.001
Model E	x		x		0.90 p < 0.001	0.71 p = 0.013	0.54 p = 0.08	0.88 p < 0.001
Model F	x	x	x	x	0.88 p < 0.001	0.79 p = 0.003	0.81 p = 0.002	0.93 P < 0.001

The six models A–F incorporating increasing levels and averaging of myocardial T ₁ maps are shown. Model C–F showed the best extracellular volume (ECV) reproducibility

ICC intraclass correlation