Fig. 1: ROI (red tracing) for measurement of Q-LUSMGV.
From: Quantitative lung ultrasound detects dynamic changes in lung recruitment in the preterm lamb
The ROI was delineated by (1) superior margin defined by the pleural surface; (2) lateral margin defined by the rib shadows; and (3) inferior margin defined by a depth of 50 pixels corresponding to one millimetre in depth. Q-LUSMGV; quantitative lung ultrasound mean grey value.
