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Table 4 Sensitivity, specificity, PPV, and NPV of parameters at optimal cutoff values for differentiate patients with different treatment outcomes

From: Potentialities of multi-b-values diffusion-weighted imaging for predicting efficacy of concurrent chemoradiotherapy in cervical cancer patients

Parameters

AUC (95%CI)

Optimal cutoff value

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

ADC-T0

0.699 (0.551–0.847)

0.995(×10− 3 mm2/s)

82.14

52.00

65.71

72.22

ADC-T1

0.880 (0.786–0.975)

1.050(×10− 3 mm2/s)

83.78

75.00

88.57

66.67

ΔADC

0.679 (0.535–0.822)

0.185(×10−3 mm2/s)

94.12

47.22

45.71

94.44

Dslow-T0

0.787 (0.663–0.910)

0.760(×10−3 mm2/s)

78.57

81.82

94.29

50.00

Dslow-T1

0.774 (0.629–0.919)

0.990(×10−3 mm2/s)

86.67

60.87

74.29

77.78

DDC-T0

0.745 (0.601–0.890)

1.140(×10− 3 mm2/s)

88.46

55.56

65.71

83.33

Δα

0.869 (0.768–0.970)

0.022

90.91

75.00

85.71

83.33

  1. Note: AUC Area under the curve, PPV Positive predictive value, NPV Negative predictive value