Fig. 4From: A novel MRI index for paraspinal muscle fatty infiltration: reliability and relation to pain and disability in lumbar spinal stenosis: results from a multicentre studyBland-Altman plots with mean differences in measurements of the muscle fat index (MFI, solid lines) and 95% limits of agreement (dashed lines) for repeated measurements by observer 1 (a), observer 2 (b), and observer 3 (c)Back to article page