TABLE VII.

Test–retest reliability (ICC) and variability of BP estimated from volumes of interest applied on the parametric images created by MRTM2

	ICC			Variability (%)
Region	240 min	300 min	% difference	240 min	300 min	% difference
Striatum	0.83	0.84	−1.2	7.3 ± 2.1	7.5 ± 3.7	−2.7
Prefrontal cortex	0.72	0.75	−3.5	9.3 ± 3.6	9.1 ± 3.5	2.2
Temporal cortex	0.84	0.89	−4.7	9.9 ± 2.4	9.5 ± 2.3	4.2
Parietal cortex	0.73	0.75	−3.1	8.8 ± 4.2	8.3 ± 3.4	6.0
Occipital cortex	0.77	0.79	−3.0	8.4 ± 2.2	7.9 ± 1.8	6.3
Thalamus	0.79	0.81	−2.2	10.0 ± 2.3	9.5 ± 2.8	6.3

ICC, intraclass correlation coefficient; Variability = 100% × ∣retest − test∣/((retest+test)/2); % difference = 100 × (values for 240 min/values for 300 min).