Table 3 Diagnostic performance of pulsatility and resistive indices

Sensitivity

79%

79%

Specificity

84%

95%

Positive predictive value

86%

95%

Negative predictive value

75%

78%

Positive likelihood ratio

5

15

Negative likelihood ratio

0.25

0.22

Are under the curve

0.89

0.92

Accuracy

81%

88%

Cutoff point

< 1.6

< 0.60

p value

< 0.001

< 0.001