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2016 ; 8
(6
): 1356-65
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Lung B-line artefacts and their use
#MMPMID27293860
Dietrich CF
; Mathis G
; Blaivas M
; Volpicelli G
; Seibel A
; Wastl D
; Atkinson NS
; Cui XW
; Fan M
; Yi D
J Thorac Dis
2016[Jun]; 8
(6
): 1356-65
PMID27293860
show ga
BACKGROUND: The analysis of lung artefacts has gained increasing importance as
markers of lung pathology. B-line artefact (BLA), caused by a reverberation
phenomenon, is the most important lung artefact. In this review, we discuss the
current role of BLA in pneumology and explore open questions of the published
consensus. METHODS: We summarized current literature about BLA. Also, we
presented observations on healthy subjects and patients with interstitial
syndrome (pulmonary fibrosis and edema), to investigate technical factors
influencing BLA visualization. RESULTS: BLA imaging is influenced by more factors
than recently assumed. When multiple BLA is visualized in the lung, they
represent a sign of increased density due to the loss of aeration in the lung
periphery. This condition may indicate different diseases including cardiogenic
pulmonary edema, diffuse or focal interstitial lung diseases (ILD), infections
and acute respiratory distress syndrome (ARDS). Correct interpretation of BLA in
lung ultrasound is strongly influenced by associated sonographic signs and
careful integration of all relevant clinical information. CONCLUSIONS: BLA is
useful to monitor clinical response, and may become crucial in directing the
diagnostic process. Further research is warranted to clarify technical
adjustments, different probe and machine factors that influence the visualization
of BLA.