Table 4

Accuracy of the segmental magnetic resonance score (MR-score-S) and its six components for the detection of colonic endoscopic inflammation in ulcerative colitis and in Crohn's disease

ROC analysisUlcerative colitis group (n=35)Crohns' disease group (n=61)Ulcerative colitis versus CD
AUROCSESens.Spec.p Value*AUROCSESens.Spec.p Value*
MR-score-S > 1MR-score-S > 2
Segmental Magnetic resonance score0.9200.032289.4786.670.00010.7790.035258.3384.480.00010.003
Diffusion-weighted imaging hyperintensity0.8540.040790.7980.000.00010.7020.033577.7862.610.00010.004
Rapid gadolinium enhancement after intravenous contrast medium administration0.8450.030772.3796.670.00010.6760.033347.2287.930.00010.0002
Differentiation between the mucosa–submucosa complex and the muscularis propria0.8570.039388.1683.330.00010.6870.035162.5075.000.00010.001
Bowel wall thickening0.8060.032364.4796.670.00010.7360.031854.1793.100.00010.12
Parietal oedema0.6740.032638.1696.670.00010.6810.028536.11100.000.00010.87
Ulcerations0.8020.035767.1193.330.00010.6310.032337.5088.790.00010.0004
  • * Receiver operating characteristics analysis.

  • Comparison of areas under independent ROC curves.

  • Cut-offs defined by ROC analysis.

  • AUROC, area under the receiver operating characteristic curve; Sens., Sensitivity; Spec., Specificity; MR-score-S, segmental Magnetic resonance score.