Fig. 4From: Lung ultrasound can be used to predict the potential of prone positioning and assess prognosis in patients with acute respiratory distress syndrome a Lung ultrasound scores at H0 and H3 in the PPP-positive and PPP-negative groups. b The aeration score variations between H3 and H0 in the PPP-positive and PPP-negative groups (** p < 0.01). ASV Aeration score variation, H0 Start of prone positioning, H3 3 h after prone positioning, LUS Lung ultrasound score, PPP Prone positioning potentialBack to article page