The "lung point": an ultrasound sign specific to pneumothorax

Lichtenstein, Daniel; Mezière, Gilbert; Biderman, Philippe; Gepner, Agnès
October 2000
Intensive Care Medicine;Oct2000, Vol. 26 Issue 10, p1434
Academic Journal
Objective: We studied an ultrasound sign, the fleeting appearance of a lung pattern (lung sliding or pathologic comet-tail artifacts) replacing a pneumothorax pattern (absent lung sliding plus exclusive horizontal lines) in a particular location of the chest wall. This sign was called the "lung point". Design: Prospective study. Setting: The medical ICU of a university-affiliated teaching hospital. Patients: The "lung point" was sought in 66 consecutive cases of proven pneumothorax analyzable using ultrasound – including 8 radio-occult cases diagnosed by means of CT – and in 233 consecutive hemithoraces studied by CT and free of pneumothorax – including 17 cases where pneumothorax was suspected. Results: The "lung point" was observed in 44 of 66 cases of pneumothorax (including 6 of 8 radio-occult cases) and in no case in the control group. The location of this sign roughly correlated with the radiological size of the pneumothorax. The "lung point" therefore had an overall sensitivity of 66% (75% in the case of radio-occult pneumothorax alone) and a specificity of 100%. Conclusion: The presence of a "lung point" allows positive diagnosis of pneumothorax at the bedside using ultrasound.


Related Articles

  • Peripheral hypoechoic spaces in consolidated lung: a specific diagnostic sonographic finding for necrotizing pneumonia in children. Chih-Yung Chiu; Kin-Sun Wong; Shen-Hao Lai; Yu-Hsuan Huang; Ming-Han Tsai; Yu-Ching Lin // Turkish Journal of Pediatrics;2008, Vol. 50 Issue 1, p58 

    The aim of this study was to investigate the diagnostic usefulness and clinical values of the sonographic feature of peripheral hypoechoic spaces (PHES) in children with necrotizing pneumonia (NP). Between July 2002 and July 2004, 23 consecutive children with NP in whom we performed real-time...

  • Pleural ultrasonography. Pictorial essay. Chira, Romeo; Chira, Alexandra; Săplăcan, Roberta Mânzat; Nagy, Georgiana; Bințințan, Adriana; Mircea, Petru Adrian // Medical Ultrasonography;Dec2014, Vol. 16 Issue 4, p364 

    Pleural ultrasonography (US) represents nowadays a useful diagnostic tool in the management of pleural diseases. Detection and evaluation of pleural effusions, pneumothorax and pleural-based lesions can be performed with US, which has the advantages of wide availability, low cost, absence of...

  • M-mode.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p1479 

    An encyclopedia entry for "M-mode," which pertains to ultrasound, is presented.

  • M-mode ultrasound.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p1479 

    An encyclopedia entry for the medical term "M-mode ultrasound" is presented.

  • A-mode.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p101 

    An encyclopedia entry for "A-mode," which refers to A-mode ultrasound, is presented.

  • Specialist women's hospital installs three state-of-the-art ultrasound systems.  // Synergy: Imaging & Therapy Practice;Jun2011, p13 

    The article reports on the installation of three Acuson S2000 ultrasound systems from Siemens Healthcare by Birmingham Women's NHS Foundation Trust.

  • Southampton University Hospitals buys Philips dedicated breast imaging unit.  // Synergy: Imaging & Therapy Practice;Jun2011, p15 

    The article reports on the purchase of a Philips iU22 ultrasound system for the Southampton and Salisbury breast imaging unit at Princess Anne Hospital in Southampton, England by Southampton University Hospitals NHS Trust.

  • The "lung pulse": an early ultrasound sign of complete atelectasis. Lichtenstein, Daniel A.; Lascols, Nathalie; Prin, Sébastien; Mezière, Gilbert; Prin, Sébastien; Mezière, Gilbert // Intensive Care Medicine;Dec2003, Vol. 29 Issue 12, p2187 

    Objective: Complete atelectasis can be immediately generated by selective intubation. A dynamic lung ultrasound sign can be described as the association of absent lung sliding with the perception of heart activity at the pleural line, a sign which was called "lung pulse." We...

  • Virtual bronchoscopic navigation combined with endobronchial ultrasound to diagnose small peripheral pulmonary lesions: a randomised trial. Ishida, Takashi; Asano, Fumihiro; Yamazaki, Koichi; Shinagawa, Naofumi; Oizumi, Satoshi; Moriya, Hiroshi; Munakata, Mitsuru; Nishimura, Masaharu // Thorax;Dec2011, Vol. 66 Issue 12, p1072 

    Background Bronchoscopy using endobronchial ultrasound (EBUS) can help to diagnose small peripheral pulmonary lesions. However, although biopsy sites can be confirmed, a bronchoscope cannot be guided in EBUS. Virtual bronchoscopic navigation (VBN) can guide a bronchoscope with virtual images,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics