Intensive Care Medicine

, 37:1488 | Cite as

Lung ultrasound in critically ill patients: comparison with bedside chest radiography

  • Nektaria Xirouchaki
  • Eleftherios Magkanas
  • Katerina Vaporidi
  • Eumorfia Kondili
  • Maria Plataki
  • Alexandros Patrianakos
  • Evaggelia Akoumianaki
  • Dimitrios GeorgopoulosEmail author



To compare the diagnostic performance of lung ultrasound and bedside chest radiography (CXR) for the detection of various pathologic abnormalities in unselected critically ill patients, using thoracic computed tomography (CT) as a gold standard.


Forty-two mechanically ventilated patients scheduled for CT were prospectively studied with a modified lung ultrasound protocol. Four pathologic entities were evaluated: consolidation, interstitial syndrome, pneumothorax, and pleural effusion. Each hemithorax was evaluated for the presence or absence of each abnormality.


Eighty-four hemithoraces were evaluated by the three imaging techniques. The sensitivity, specificity, and diagnostic accuracy of CXR were 38, 89, and 49% for consolidation, 46, 80, and 58% for interstitial syndrome, 0, 99, and 89% for pneumothorax, and 65, 81, and 69% for pleural effusion, respectively. The corresponding values for lung ultrasound were 100, 78, and 95% for consolidation, 94, 93, and 94% for interstitial syndrome, 75, 93, and 92% for pneumothorax, and 100, 100, and 100% for pleural effusion, respectively. The relatively low sensitivity of lung ultrasound for pneumothorax could be due to small number of cases (n = 8) and/or suboptimal methodology.


In our unselected general ICU population lung ultrasound has a considerably better diagnostic performance than CXR for the diagnosis of common pathologic conditions and may be used as an alternative to thoracic CT.


Intensive care unit Ultrasonography Pneumothorax Pleural effusion Consolidation Interstitial syndrome 

Supplementary material

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Copyright information

© Copyright jointly held by Springer and ESICM 2011

Authors and Affiliations

  • Nektaria Xirouchaki
    • 1
  • Eleftherios Magkanas
    • 2
  • Katerina Vaporidi
    • 1
  • Eumorfia Kondili
    • 1
  • Maria Plataki
    • 1
  • Alexandros Patrianakos
    • 3
  • Evaggelia Akoumianaki
    • 1
  • Dimitrios Georgopoulos
    • 1
    Email author
  1. 1.Department of Intensive Care MedicineUniversity Hospital of Heraklion, University of CreteHeraklionGreece
  2. 2.Department of RadiologyUniversity Hospital of Heraklion, University of CreteHeraklionGreece
  3. 3.Department of CardiologyUniversity Hospital of Heraklion, University of CreteHeraklionGreece

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