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Insights into Imaging

Table 2 Agreement between radiographic and MRI findings for erosions and syndesmophytes/bridging in the cervical and lumbar spine

From: The value of MRI compared to conventional radiography in analysing morphologic changes in the spine in axial spondyloarthritis

N = 40

Cohen’s Kappa

Radiography versus MRI

Cervical spine

Lumbar spine

Erosions versus erosions

0.13 ± 0.10

0.03 ± 0.05

Syndesmophytes versus syndesmophytes

0.13 ± 0.09

0.15 ± 0.10

Syndesmophytes and bridging versus syndesmophytes

0.20 ± 0.09

0.20 ± 0.07

Syndesmophytes and bridging versus erosions

0.20 ± 0.09

0.10 ± 0.08

  1. The given Cohen’ Kappa is an average value of two readers per modality ± standard deviation
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