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Table 2 Interobserver agreement for MRI quantitative measurements

From: T2 mapping and fat quantification of lumbar paraspinal muscle in ankylosing spondylitis: a case control study

 

L3/L4 level

L4/L5 level

SIfat

0.831 (95%CI: 0.717–0.891)

0.914 (95%CI: 0.885–0.949)

SIwater

0.858 (95%CI: 0.815–0.892)

0.869 (95%CI: 0.817–0.895)

CSA

0.984 (95%CI: 0.979–0.988)

0.961 (95%CI: 0.949–0.971)

T2non-fatsat

0.823 (95%CI: 0.761–0.859)

0.926 (95%CI: 0.869–0.965)

T2fastsat

0.840 (95%CI: 0.752–0.881)

0.888 (95%CI: 0.854–0.915)

  1. SI Signal intensity, CSA Cross-sectional area, MRI Magnetic resonance imaging, CI Confidence interval