European Radiology

, Volume 15, Issue 5, pp 930–935 | Cite as

Value of high-resolution ultrasound in detecting a pneumothorax

  • Myung Jin Chung
  • Jin Mo GooEmail author
  • Jung-Gi Im
  • Jae Min Cho
  • Sung Bum Cho
  • Seog Joon Kim


This study was designed to compare the detectability of high-resolution ultrasound (HRUS) and bedside chest radiography (CR) for a pneumothorax. During the last 14 months, 97 consecutive patients who were admitted to our institute to undergo a transthoracic needle aspiration and biopsy (TNAB) of the lung were included. Both HRUS and CR were performed immediately after the TNAB procedure. The HRUS images were saved in sequence using the cine-review mode and displayed as an animation on a workstation. Four radiologists independently analyzed both HRUS images and a soft copy of the CR on a diagnostic monitor and identified the pneumothorax. With CT as the reference standard, statistical parameters were calculated. From 97 patients, 35 pneumothorax cases were found on CT after the TNAB. The sensitivities in detecting the pneumothorax were 80 and 47% in HRUS and CR, respectively. The specificities were 94 and 94%. The diagnostic accuracies were 89 and 77%. The inter-observer agreement was excellent (κ=0.85) in the HRUS images and moderate (κ=0.49) in the CR. The results of this study suggest that HRUS is a more sensitive and confident method for diagnosing a pneumothorax when compared to bedside chest radiography.


Ultrasound, comparative study Ultrasound, utilization Thorax, US Pneumothorax 


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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Myung Jin Chung
    • 1
  • Jin Mo Goo
    • 2
    Email author
  • Jung-Gi Im
    • 2
  • Jae Min Cho
    • 1
  • Sung Bum Cho
    • 3
  • Seog Joon Kim
    • 4
  1. 1.Department of Radiology and Center for Imaging Science, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulSouth Korea
  2. 2.Department of Radiology, Clinical Research InstituteSeoul National University College of Medicine and the Institute of Radiation Medicine, SNUMRCSeoulSouth Korea
  3. 3.Department of RadiologyKorea University College of MedicineSeoulSouth Korea
  4. 4.Department of RadiologyHandong University Sunlin HospitalPohangSouth Korea

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