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Table 5 Predictive capabilities of computed tomography-based estimation of extravascular lung water index

From: Computed tomography to estimate cardiac preload and extravascular lung water. A retrospective analysis in critically ill patients

 

CT-based estimation of EVLWI vs. TPTD-derived EVLWI

EVLWI < 7 mL/kg

EVLWI 7 - 10 mL/kg

EVLWI > 10 mL/kg

Radiologist 1

Sensitivity

20

(0.5 to 72)

64

(31 to 89)

7

(0.1 to 34)

 

Specificity

88

(69 to 97)

26

(9 to 51)

75

(48 to 93)

 

PPV

25

(0.6 to 81)

33

(15 to 57)

20

(0.5 to 72)

 

NPV

85

(65 to 96)

56

(21 to 86)

48

(28 to 69)

Radiologist 2

Sensitivity

20

(0.5 to 72)

64

(31 to 89)

29

(8 to 58)

 

Specificity

88

(69 to 97)

37

(16 to 62)

81

(54 to 96)

 

PPV

25

(0.6 to 81)

37

(16 to 62)

57

(18 to 90)

 

NPV

85

(65 to 96)

64

(31 to 89)

57

(34 to 77)

  1. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) given as percentages with 95% confidence intervals (95% CI) in parentheses for computed tomography (CT)-based estimations of extravascular lung water index (EVLWI) with regard to EVLWI derived from transpulmonary thermodilution (TPTD) are shown separately for radiologist 1 and radiologist 2.