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Number of B-lines by number of zones scanned and by ultrasound clip length (high-end ultrasound machine)
| 2 second clip | 4 second clip | 6 second clip | P value* (2 vs. 4 second) |
P value* (4 vs. 6 second) |
|
|---|---|---|---|---|---|
| Sum of B-lines in 4 zones | 3 (1–5) | 3 (1–7) | 4 (1–7) | <0.001 | 0.057 |
| Sum of B-lines in 8 zones† | 5 (3–7) | 6 (3–11) | 7 (3–12) | 0.001 | 0.018 |
Values shown are median number of B-lines (interquartile range).
Wilcoxon signed-rank test
Subset with 8 zones scanned included n=20.
