The phrase "aerated tissue density" is correct and usable in written English.
It can be used in scientific or medical contexts, particularly when discussing the properties of biological tissues that have been aerated or have air-filled spaces.
Example: "The study measured the aerated tissue density to assess the impact of the treatment on lung function."
Alternatives: "air-filled tissue density" or "oxygenated tissue density".
The increase in resting lung volume was mainly related to a redistribution of aeration: a minor decrease in non-aerated lung tissue (3%), a major decrease in poorly aerated tissue (17%) and a major increase (20%) in well-aerated tissue.
The fraction of non-aerated tissue increased from groups 1 to 5, while the normally aerated tissue fraction decreased in a corresponding fashion.
Overall lung density was lower compared with PCV – SB (P < 0.05); accordingly, the fraction of normally aerated tissue was higher in the PCV + SB group (P < 0.05).
[3] The grams of recruited tissue were computed across the pressure intervals at which the CT scan were performed, as the differences of not aerated tissue.
Recruitment occurs mainly in nonaerated tissue [ 21], but seems to also take place in the poorly aerated tissue [ 14].
At end-inspiration, BIPAP+SBmean led to an increased percentage of normally aerated tissue at apex and hilum, as well as reduced poorly aerated and nonaerated tissue at apex and base, respectively, mainly during controlled breaths.
Spontaneous breathing resulted in a larger amount of normally aerated tissue (P < 0.01) and in fewer nonaerated voxels (P < 0.05).
However, the metabolic activity of the normally aerated tissue significantly increased at an airway plateau pressure higher than 26 cmH2O.
Based on their degree of aeration, four different lung compartments were quantified according to usual thresholds [ 3]: hyperinflated tissue (-1,000 to -901 HU), normally aerated tissue (-900 to -501 HU), poorly aerated tissue (-500 to -101 HU) and nonaerated tissue (-100 to +200 HU).
In addition, as the same VT was applied in all groups and hypervolemia decreased the normally aerated tissue, the strain in the hypervolemic group may be increased.
