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Table 3 Correlation between lung aeration and indicators of right ventricular afterload

From: The effect of open lung ventilation on right ventricular and left ventricular function in lung-lavaged pigs

Correlation coefficient

Good aeration (-1000 HU to -600 HU)

Poor aeration (-600 HU to -200 HU)

Nonaeration (-200 HU to +200 HU)

Pulmonary vascular resistance

0.7

-0.1

-0.7

Cardiac output

-0.2

-0.2

-0.2

Mean pulmonary artery pressure–pulmonary capillary wedge pressurea

0.2

-0.1

-0.7

  1. HU, Houndsfield units, expressed as the percentage of the lung area. None of the correlations was significant. aPressure drop through the pulmonary circulation.
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Critical Care

ISSN: 1364-8535