Interobserver variability in quality assessment of magnetic resonance images

BMC Medical Imaging

Table 1 Interobserver variability in the IQA of MR images of different body parts

	κ	Confidence interval		p-value	ρ_mean	ρ_max	ρ_min	ρ_std
All images	0.120	0.118	0.121	<0.001	0.5706	0.8615	-0.4988	0.3331
Spine	0.106	0.103	0.110		0.5944	0.9044	-0.3188	0.3156
Knee	0.114	0.111	0.117		0.5527	0.9108	-0.5202	0.4321
Shoulder	0.128	0.125	0.131		0.5839	0.9304	-0.6490	0.4009
Wrist	0.105	0.100	0.110		0.4581	0.9258	-0.7356	0.3982
Hip	0.048	0.042	0.055		0.4136	0.9487	-0.9487	0.6648
Elbow	0.079	0.071	0.088		0.9231	1.0000	-1.0000	0.3922
Ankle	0.089	0.081	0.098		0.6000	1.0000	-1.0000	0.8137
Brain	0.084	0.080	0.088		0.4966	0.9698	-0.8230	0.5786
Spine ∪ Brain	0.102	0.100	0.105		0.5774	0.9052	-0.4421	0.3606
All - (Spine ∪ Brain)	0.118	0.117	0.120		0.5671	0.8951	-0.4824	0.3286

ISSN: 1471-2342