Assessment of lung water content by roentgen videodensitometry.

Autor: Zetterström H, Jakobson S, Lörelius LE, Janerås L, Ruhn G, Gerdin B
Jazyk: angličtina
Zdroj: Critical care medicine [Crit Care Med] 1984 May; Vol. 12 (5), pp. 457-60.
DOI: 10.1097/00003246-198405000-00010
Abstrakt: In 17 anesthetized and mechanically ventilated pigs, different degrees of lung injury were induced by iv infusion of oleic acid (mean dose 0.1 ml/kg). The change in radiologic density of the chest was measured by a videodensitometer before and 4 h after oleic acid infusion. The lungs were then removed for determination of the wet/dry weight ratio (WW/DW). The change in radiologic density was significantly correlated to WW/DW (r = .87) and to the changes in end-inspiratory pressure (r = .80), mean pulmonary arterial pressure (r = .77) and venous admixture (r = .79), but not to changes in the oncotic-hydrostatic pressure gradient of the lungs (r = .46). Roentgen videodensitometry appears to be a useful method for assessing changes in extravascular lung water content.
Databáze: MEDLINE