Bedside cardiopulmonary ultrasonography evaluates lung water content in very low-weight preterm neonates with patent ductus arteriosus

Figure 1 Lung ultrasonography score was evaluated in lung ultrasonography. A: Line A, 0 point; B: Five B lines with no fusion, 1 point; C: Diffuse B lines with moderate subpleural lung consolidation, 2 points; D: Extensive consolidation, 3 points.

Figure 2 Receiver operating characteristic curve to predict the presence of hemodynamically significant patent ductus arteriosus using the lung ultrasonography score in patent ductus arteriosus group. Receiver operating characteristic curve showed that lung ultrasonography score had moderate accuracy for diagnosing hemodynamically significant patent ductus arteriosus. The area under the curve was 0.741; when the cut-off of lung ultrasonography score was more than 9 points, its sensitivity and specificity were 93.75% and 50.94%, respectively.