Perfusion of nonventilated lung: Failure of hypoxic vasoconstriction?

H. D. Sostman, R. D. Neumann, A. Gottschalk, R. H. Greenspan

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Alveolar hypoxia is a well established cause of regional vasoconstriction such that nonventilated segments are not perfused. The paradoxical situation of retained perfusion of nonventilated lung has seldom been discussed. Three clinical examples are illustrated. In each case coexistent chronic obstructive lung disease may have contributed to this unexpected finding by reducing pulmonary vascular capacity such that blood flow diversion from hypoxic segments was not possible.

Original languageEnglish (US)
Pages (from-to)151-156
Number of pages6
JournalAmerican Journal of Roentgenology
Issue number1
StatePublished - 1983

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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