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Table 1 ROC curve analysis for FA measures

From: Role of MRI special diffusion weighted imaging/diffusion tensor imaging techniques in the assessment of perianal fistula activity

  AUC 95%CI P value Cut-off Sensitivity (%) Specificity (%)
Track FA value 1.000 1.0–1.0 0.000  ≤ 0.410 100.0 100.0
Ipsilateral sphincter FA value 0.808 0.661–0.954 0.000  ≤ 0.522 89.7 78.9
Contralateral sphincter FA value 0.684 0.525–0.843 0.032  ≤ 0.717 62.1 68.4
Surrounding edema FA value 0.850 0.731–0.969 0.000  ≤ 0.505 79.3 84.2
  1. P value is considered statistatically significant when less than 0.005