Chest radiography versus lung ultrasound for identification of acute respiratory distress syndrome: a retrospective observational study

Table 3 Imaging findings of patients who met Berlin-LUS but not Berlin-CXR definition

Imaging findings	Berlin-LUS, but not Berlin-CXR definition met (n = 79)
LUS multiple B lines (> 2 B lines per region) not detected by CXR^a
Anterior-superior (%)^b	13 (16.5)
Anterior-inferior (%)^b	15 (19.0)
Lateral-superior (%)^b	18 (22.8)
Lateral-inferior (%)^b	29 (36.7)
Posterior-superior (%)^b	26 (32.9)
Posterior-inferior (%)^b	29 (36.7)
LUS consolidation not detected by CXR^a
Anterior-superior (%)^b	22 (27.8)
Anterior-inferior (%)^b	27 (34.2)
Lateral-superior (%)^b	30 (38.0)
Lateral-inferior (%)^b	28 (35.4)
Posterior-superior (%)^b	24 (30.4)
Posterior-inferior (%)^b	35 (44.3)

^aRight side on chest radiography (CXR) was compared with any of the right-sided regions on lung ultrasound (LUS). Left side on CXR was compared with any of the left-sided regions on LUS; for example, if a right-sided opacity on CXR could be detected by the presence of either multiple B lines (> 2 B lines per region) or consolidation in any one of the right sided regions, it was deemed to be detected by both CXR and LUS, and if consolidation was detected in the left posterior-inferior region on LUS and if there was also a left-sided opacity on CXR, it was deemed to be detected by both CXR and LUS
^bRight and left sides combined; if either the corresponding right-sided region or left-sided region was detected on LUS but not CXR, it was deemed that the regions were detected by LUS but not detected by CXR

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