Volume 19 Supplement 1
Lung ultrasound aeration assessment: comparison of two techniques
© Mongodi et al.; licensee BioMed Central Ltd. 2015
Published: 16 March 2015
Lung ultrasound (LUS) allows semiquantification of lung aeration in PEEP trials , pneumonia  and weaning . LUS score is based on number/coalescence of vertical artifacts (B-lines) in longitudinal scan (LONG) : the pleura is identified between two ribs and its visualization limited by intercostal space (ICS) width. We hypothesized that a transversal scan (TRANSV) aligned with ICS would visualize longer pleura and a higher number of artifacts, with better assessment of loss of aeration (LoA).
LONG and TRANSV were performed in six areas per lung (anterior, lateral and posterior, each divided into superior and inferior). Once LONG was performed, TRANSV was obtained by a probe rotation until the ribs disappeared. We considered pleural length, B-line number/coalescence, and subpleural/lobar consolidations. LUS score was assigned: 0 normal lung, 1 moderate LoA (≥3 well-spaced B-lines), 2 severe LoA (coalescent B-lines), 3 complete LoA (tissue-like pattern).
TRANSV visualizes significantly longer pleura and greater number of artifacts useful for lung disease assessment.
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