Skip to main content

Table 1 Receiver-operating characteristic (ROC) curve analysis for discrimination between cases and controls using the olfactory bulb volume, FA value, or ADC value

From: Diffusion tensor imaging: a smart move to olfactory pathway imaging; comparative study of chronic sinonasal polyposis patients and normal control

 

ROC parameters

AUC

p value

J index

Cutoff criterion

Sensitivity (%)

Specificity (%)

Value

95% C

OB/T volumetry

0.891†

0.779–0.958

<.0001

0.75

≤ 0.054 cm3

78.6

96.4

FA value

0.683

0.545–0.801

0.0124

0.3929

≤ 0.357

57.1

82.1

ADC value

0.708

0.571–0.822

0.0039

0.429

≥ 1.417 (Ă— 10-3 mm2/s)

46.4

96.4

  1. Versus AUC = 0.5 (DeLong method)
  2. AUC area under the ROC curve
  3. †Statistically significant difference versus FA value (p value = 0.0008) and ADC value (p value = 0.0131; DeLong method)