Figure 3.

The lung ultrasound score is represented in the illustration above. Score 0 corresponds to the visualization of the A-lines only or with less than three B-lines per scan; score 1 is given if three or more well defined B-lines or coalescent B-lines/sub-pleural consolidations are visualized but they cover < 50% of the inspected zone; score 2 corresponds to the presence of multiple B-lines (coalescent or not) or sub-pleural consolidations occupying > 50% of the visualized pleura; score 3 is finally assigned when a clear tissue-like pattern is observed.