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Table 4 Receiver operating characteristics (ROC) curve results for determining the diagnostic accuracy of DW-MRI using ADC values of median nerve in CTS patients

From: Diagnostic value of diffusion-weighted MRI using apparent diffusion coefficient (ADC) in evaluation of median nerve in carpal tunnel syndrome

 

Cut-off

Sensitivity

%

Specificity

%

AUC

95% CI

Accuracy

%

p value

ADC at DRUJ

 ≤ 0.99

89.47

100.0

0.25

0.796–0.995

93.3

 < 0.001*

ADC at pisiform

 > 1.07

89.47

100.0

0.983

0.854–1.00

93.3

 < 0.001*

ADC ratio

 ≤ 0.89

100.0

100.0

1.0

0.884–1.0

100.0

 < 0.001*

  1. Pairwise comparison of AUCs of the three variables revealed non-significant differences (p > 0.05)
  2. AUC area under the curve, CI confidence interval
  3. p value: probability
  4. *significant p value (< 0.05)