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Table 3 The sensitivity of anteroposterior supine chest x-ray in diagnosing pneumothorax at different intrapleural air volumes

From: The intrapleural volume threshold for ultrasound detection of pneumothoraces: An experimental study on porcine models

PTX volume

TP

na

Sensitivity (%)

95% CI

10 mL

2

19

11

(2, 35)

25 mL

1

20

5

(0, 27)

50 mL

4

20

20

(7, 44)

100 mL

4

18

22

(7, 48)

200 mL

5

19

26

(10, 51)

350 mL

12

19

63

(39, 83)

500 mL

12

18

67

(41, 86)

  1. Abbreviations: PTX, pneumothorax; TP, true positive; n, number of lungs with PTX.
  2. a Due to some blank chest x-ray pictures, the “n” values differ in the volume series.
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Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

ISSN: 1757-7241