Comparison of paraspinal muscle composition measurements using IDEAL fat–water and T2-weighted MR images

BMC Medical Imaging

Table 2 Intra-rater reliability and 95% confidence interval (CI) for %FSF and thresholding measurements

	%FSF measurements N = 10		Thresholding measurements N = 10
	ICC [95% CI]	SEM (%)	ICC [95% CI]	SEM (%)
L4–L5 level
Right MF	0.993 [0.973, 0.998]	0.77	0.851 [0.513, 0.961]	3.92
Left MF	0.995 [0.982, 0.999]	0.65	0.877 [0.597, 0.968]	3.66
Right ES	0.983 [0.928, 0.996]	1.60	0.870 [0.556, 0.996]	4.44
Left ES	0.982 [0.934, 0.996]	1.39	0.894 [0.628, 0.973]	3.43
Right psoas	0.990 [0.961, 0.997]	0.29	0.962 [0.865, 0.990]	0.53
Left psoas	0.980 [0.903, 0.995]	0.32	0.944 [0.804, 0.984]	0.35
L5–S1 level
Right MF	0.991 [0.962, 0.998]	0.85	0.962 [0.855, 0.990]	1.73
Left MF	0.995 [0.980, 0.999]	0.64	0.972 [0.895, 0.993]	1.6
Right ES	0.997 [0.914, 0.994]	0.60	0.944 [0.794, 0.986]	3.34
Left ES	0.974 [0.861, 0.994]	1.76	0.972 [0.866, 0.993]	2.09
Right psoas	0.944 [0.791, 0.986]	0.89	0.949 [0.819, 0.987]	0.82
Left psoas	0.963 [0.869, 0.991]	0.87	0.963 [0.865, 0.990]	0.42

ISSN: 1471-2342