Table 3.

Comparison of manually and automatically extracted relaxation values with Pearson correlation coefficient r _coeff and bias measurement per disc for each data set (P‐values, [95% confidence intervals])

	L5S1	L4L5	L3L4	L2L3	L1L2
Data set A
T1ρ r coeff	0.987 (P = 3.0e‐13)	0.998 (P = 3.6e‐20)	0.997 (P = 1.4e‐20)	0.998 (P = 4.5e‐20)	0.995 (P = 1.1e‐14)
T1ρ bias (ms)	−2.0 (−8.16, 4.07)	−0.3 (−2.44, 1.74)	−0.5 (−2.33, 1.21)	0.0 (−2.12, 1.99)	−0.6 (−3.72, 2.34)
Data set B
T1ρ r coeff	0.969 (P = 4.3e‐11)	0.991 (P = 3.7e‐16)	0.990 (P = 5.1e‐16)	0.993 (P = 3.5e‐17)	0.988 (P = 2.6e‐14)
T1ρ bias (ms)	−0.4 (−4.92, 4.01)	0.03 (−4.50, 4.56)	0.0 (−4.41, 4.40)	0.41 (−3.31, 4.15)	0.06 (−4.83, 4.96)
T2 r coeff	0.975 (P = 7.1e‐12)	0.984 (P = 3.8e‐14)	0.983 (P = 6.5e‐14)	0.991 (P = 4.0e‐16)	0.979 (P = 1.6e‐12)
T2 bias (ms)	−0.2 (−3.63, 3.23)	−0.1 (3.86, 3.49)	0.18 (−3.55, 3.92)	0.68 (−2.48, 3.84)	0.10 (−4.18, 4.39)

Biomarker results for additional segmentation experiments are found in Supporting Information Figures S7 and S8.