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. 2024 Oct 7;28:328. doi: 10.1186/s13054-024-05102-y

Fig. 2.

Fig. 2

Top panel is a 2D image of pneumothorax depicting the pleural line (white arrow) and A-line (blue arrow) with no B-lines. Bottom panel is an M-mode image in pneumothorax showing stratosphere or Barcode sign