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Table 3 Diagnostic performance of CT value and pleural fluid/blood CT value ratio in differentiating between patients with transtive and exuative pleural effusion

From: Diagnostic accuracy of thoracic CT to differentiate transudative from exudative pleural effusion prior to thoracentesis

 

Cut-off value

Sensitivity

(%)

Specificity

(%)

PPV

(%)

NPV

(%)

Luoyang

Cohort

CT value, 10.81 HU

88.89

68.90

43.96

95.76

Pleural fluid/blood CT value ratio, 0.27

77.78

78.05

49.30

92.75

Zhengzhou

Cohort

CT value, 10.81 HU

84.38

60.74

29.67

95.19

Pleural fluid/blood CT value ratio, 0.27

78.13

74.85

37.88

94.57

  1. Cut-off values were established using Youden index in Luoyang Cohort.
  2. PPV, positive predictive value; NPV, negative predictive value
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Respiratory Research

ISSN: 1465-993X

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