Innovative integration of lung ultrasound and wearable monitoring for predicting pulmonary complications in colorectal surgery: A prospective study

Figure 2 The pulmonary ultrasound images for different scores. A: 0 points, 0 to 2 B lines; B: 1 point, 3 or more B lines, thickened pleural line; C: 2 points, multiple overlapped B lines, thickened or irregular pleural line.