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Critical care medicine · Jan 1984
Case ReportsLocal lung ventilation in critically ill patients using nonradioactive xenon-enhanced transmission computed tomography.
- J V Snyder, B Pennock, D Herbert, J E Rinaldo, J Culpepper, W F Good, and D Gur.
- Crit. Care Med. 1984 Jan 1; 12 (1): 46-51.
AbstractNonradioactive xenon is sufficiently radiodense to increase the density of gas-containing lung as seen in a computed tomography (CT) scan. Subtraction of a baseline CT scan from the xenon-enhanced CT scan can accentuate gas space differences by subtracting fixed tissue densities. The baseline scan and the scan obtained during wash-in of xenon (before equilibration) allow circulation of local ventilation. The xenon CT scan, thus, provides more precise information about distribution of ventilation than planar radiogas techniques. The technical aspects of application to a critically ill patient and the mathematical basis of the technique are presented.
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