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Title: Reverse ventilation--perfusion mismatch

Journal Article · · Clin. Nucl. Med.; (United States)

Patients having lobar airway obstruction or consolidation usually have decreases of both ventilation and perfusion on lung scans. We report three patients in whom hypoxic vasoconstriction was apparently incomplete, resulting in a ''reversed'' ventilation-perfusion mismatch. Perfusion of the hypoxic lobe on the radionuclide scan was associated with metabolic alkalosis, pulmonary venous and pulmonary arterial hypertension in these patients.

Research Organization:
Department of Radiology, Veterans Administration Medical Center, Martinez, CA
OSTI ID:
6850439
Journal Information:
Clin. Nucl. Med.; (United States), Vol. 9:1
Country of Publication:
United States
Language:
English