Fig. 4. ROC curve analysis for differentiating severe bowel fibrosis from mild-to-moderate fibrosis.

ROC curve analysis shows that standardized MTR is highly accurate with AUC of 0.895 in distinguishing severe intestinal fibrosis from mild-to-moderate intestinal fibrosis, followed by normalized MTR (AUC = 0.885) and MTR (AUC = 0.798). AUC = area under ROC curve, ROC = receiver operating characteristic