Intensive Care Medicine

, Volume 37, Issue 2, pp 224–232 | Cite as

Sonographic diagnosis of pneumothorax

Review

Abstract

Purpose

Over the last decade, the use of ultrasound as a technique to look for pneumothorax has rapidly evolved. This review aims to analyze and synthesize current knowledge on lung ultrasound targeted at the diagnosis of pneumothorax. The technique and its usefulness in different scenarios are explained, and its merits over conventional radiology are highlighted.

Methods

A systematic literature search (1995–2010) was performed, involving PubMed, to describe the more recent scientific evidence on the topic. Moreover, this review is also a synopsis of experts’ opinion and personal clinical experience.

Results and conclusions

Ultrasound diagnosis of pneumothorax relies on the recognition of four sonographic artifact signs: the lung sliding, the B lines, the lung point, and the lung pulse. Combining these few signs, it is possible to accurately rule in or rule out pneumothorax at the bedside in several different clinical scenarios. Sensitivity of a lung ultrasound in the detection of pneumothorax is higher than that of conventional anterior–posterior chest radiography, and similar to that of computerized tomography. A major benefit of a lung ultrasound is that it can be used quickly to diagnose pneumothorax at the bedside in any critical situation, like cardiac arrest and hemodynamically unstable patients. Moreover, it can be used to detect radio-occult pneumothorax and to quantify the extension of the air layer. Advantages in terms of reduced complexity, feasibility at the bedside, and absence of exposure to ionizing radiation make lung ultrasound the method of choice in several common clinical situations.

Keywords

Emergency ultrasound Lung ultrasound Pneumothorax Chest sonography 

Supplementary material

Online Resource 1 Lung ultrasound scan showing the double lung point. The pleural sliding intermittently appears on both sides. Between the two lung points, an area of lung without pleural sliding can be visualized. (AVI 4341 kb)

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Copyright information

© Copyright jointly held by Springer and ESICM 2010

Authors and Affiliations

  1. 1.Department of Emergency MedicineSan Luigi Gonzaga University HospitalTurinItaly
  2. 2.S.C.D.O. Medicina d’UrgenzaOspedale Universitario San Luigi Gonzaga, OrbassanoTurinItaly

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