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Updated: Mar 19, 2026
Point-of-Care Lung Ultrasound in Adults: Image Acquisition
Published on: March 3, 2023
Lung B-line artefacts and their use.
Christoph F Dietrich1, Gebhard Mathis1, Michael Blaivas1
11 Sino-German Research Center of Ultrasound in Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China ; 2 Caritas Krankenhaus Bad Mergentheim, Uhlandstr. 7, 97980 Bad Mergentheim, Deutschland ; 3 Praxis for Internal Medicine, Bahnhofstraße 16, 6830 Rankweil, Austria ; 4 University of South Carolina School of Medicine, Department of Emergency Medicine, Piedmont Hospital, Newnan Georgia, USA ; 5 Department of Emergency Medicine, San Luigi Gonzaga University Hospital, Torino, Italy ; 6 Diakonie Klinikum Jung-Stilling, Abteilung für Anästhesiologie, Intensiv- und Notfallmedizin, 57074 Siegen, Deutschland ; 7 Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, UK ; 8 Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China ; 9 Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
B-line artefacts (BLA) in lung ultrasound are key indicators of lung pathology, signaling increased density and potential diseases like pulmonary edema or ARDS. Further research is needed to optimize BLA visualization techniques.
Area of Science:
- Pulmonology
- Medical Imaging
- Ultrasound Diagnostics
Background:
- Lung artefacts, particularly B-line artefacts (BLA), are increasingly recognized as vital markers for lung pathology.
- BLA, a reverberation phenomenon, is the most significant lung artefact, necessitating a comprehensive understanding of its role in clinical practice.
Purpose of the Study:
- To review the current clinical significance of BLA in pneumology.
- To explore unresolved questions and areas for future research regarding BLA consensus and interpretation.
Main Methods:
- A comprehensive literature review on BLA was conducted.
- Observations were made on healthy individuals and patients with interstitial lung conditions (pulmonary fibrosis, edema) to assess factors influencing BLA visualization.
Main Results:
- BLA visualization is affected by more technical factors than previously understood.
- Multiple BLA indicate increased lung density due to aeration loss, suggesting conditions such as cardiogenic pulmonary edema, interstitial lung diseases (ILD), infections, and ARDS.
- Accurate BLA interpretation relies on associated sonographic signs and clinical data integration.
Conclusions:
- BLA serves as a valuable tool for monitoring patient response to treatment and can guide the diagnostic pathway.
- Further investigation is required to elucidate technical adjustments and equipment factors impacting BLA visualization.
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