Fig. 1. Scanning protocol with aeration patterns and assigned punctuation for calculation of the LUS score.

a Eight-zone scanning protocol. 1: anterosuperior (midclavicular line); 2 anterolateral (anterior axillary line); 3: posterolateral (posterior axillary line); 4: posterior (paravertebral). b Aeration pattern and assigned punctuations. 0 point (normally aerated lung with A line pattern), 1 point (mild interstitial syndrome with nonconfluent B-line pattern); 2 points (severe interstitial syndrome with confluent B-line pattern “white lung”); 3 point (extent lung consolidation).