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Intensive Care Medicine Experimental
Fig. 2 | Intensive Care Medicine Experimental

Fig. 2

From: Different particle flow patterns from the airways after recruitment manoeuvres using volume-controlled or pressure-controlled ventilation

Fig. 2

Particles in the diameter range of 0.41–4.55 μm were measured by the customised PExA instrument. The particles are computationally divided by the optical particle counter in the PExA device into eight different size distributions with a mean diameter of particle size 1, 0.48 μm; particle size 2, 0.59 μm; particle size 3, 0.75 μm; particle size 4, 0.98 μm; particle size 5, 1.22 μm; particle size 6, 1.67 μm; particle size 7, 2.52 μm; and particle size 8, 3.37 μm. The figure displays different particle size distributions during volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV) in five animals during three consecutive days (a). One animal developed ARDS on day 3. Note how particles within size 6 were increased during day 1–2. On day 3, when the animal developed clinical signs of ARDS, a similar particle size pattern with the other five animals was seen (b)

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