Skip to main content

Table 4 Diagnostic utility and cut-off values of FCLs at different spinal levels in diagnosing axSpA

From: Fatty corner lesions in T1-weighted magnetic resonance imaging as an alternative to sacroiliitis for diagnosis of axial spondyloarthritis

 

AUC

Stand Error

p-value

95% CI

All spinal lesions

 Whole spine

0.615

0.036

0.01

0.545; 0.685

 Cervical

0.544

0.039

0.29

0.467; 0.620

 Thoracic

0.638

0.035

0.001

0.570; 0.707

 Lumbar

0.561

0.039

0.14

0.486; 0.637

Anterior lesions

 Whole spine

0.622

0.036

0.003

0.551; 0.692

 Cervical

0.535

0.040

0.40

0.457; 0.612

 Thoracic

0.640

0.035

0.001

0.572; 0.708

 Lumbar

0.576

0.039

0.07

0.500; 0.652

Posterior lesions

 Whole spine

0.567

0.038

0.11

0.492; 0.641

 Cervical

0.521

0.040

0.61

0.442; 0.600

 Thoracic

0.560

0.038

0.15

0.485; 0.635

Lumbar

0.527

0.040

0.52

0.449; 0.605

 

Cut-off threshold (no of FCLs)

Sensitivity (%)

Specificity (%)

Anterior whole spine FCLs

≥3

26.9

93.5

≥4

22.7

95.2

≥5

20.6

96.8

Anterior thoracic FCLs

≥1

31.5

90.3

≥2

26.5

95.2

≥3

18.5

98.4

  1. FCL fatty corner lesion, axSpA axial spondyloarthritis, AUC area under curve, CI confidence interval