Fig. 2From: Lung ultrasound is a reliable method for evaluating extravascular lung water volume in rodentsHow to calculate the B line score a 0 B line (Score = 0). b 1 B line (Score = 1). c 3 B lines (Score = 3). d Confluent B lines assesse the percentage of the rib space and divided it by ten. Score = 045 cm/0.9 cm × 10 = 5. e Confluent B lines present in more than one rib spaces: Add each score together to get the whole score in one scan. Score = 0.7 cm/2.8 cm × 10 + 0.7 cm/2.8 cm × 10 + 0.6 cm/2.8 cm × 10 = 10.15 ≈ 10. The whole score of the rat lung semiquantified by LUS is the sum of four scores in each scanBack to article page