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Title: Comparison of 133Xe washout curves after bolus inhalation, perfusion, and equilibration
Authors: Devos, P ×
Demedts, Maurice
Vandecruys, A
Cosemans, Jan
De Roo, Michel #
Issue Date: Mar-1978
Series Title: Respiration; international review of thoracic diseases vol:35 issue:2 pages:115-21
Abstract: In 6 healthy subjects and 13 patients with chronic obstructive lung disease, 133Xe washout curves after bolus inhalation, perfusion and equilibration were compared, using a gamma camera and computerized data handling. In healthy subjects the washout after equilibration was significantly slower than after the two other procedures. As this phenomenon occurred at the basal zones, it was attributed to the presence of airway closure in some units. In patients, the three washouts were significantly different from each other. This indicated the existence of intraregional inhomogeneity in ventilation, perfusion and ventilation-perfusion ratio. Our conclusion is that comparison of these different washout methods yields valuable information not only on absolute values of pulmonary function but also on the intraregional distribution, which cannot be obtained by other examinations.
ISSN: 0025-7931
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Pneumology
× corresponding author
# (joint) last author

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