title: Impaired ventilation in a patient with angiographically demonstrated pulmonary emboli.
abstract: Matched regional ventilation/perfusion studies (V/Q) have traditionally been associated with ventilatory diseases, while mismatched V/Q studies have been associated more often with vascular abnormalities. The authors describe a patient with multiple pulmonary emboli who demonstrated matched ventilation and perfusion studies five hours after the onset of symptoms.
mesh_terms: D000328:Adult; D000792:Angiography; D006801:Humans; D008297:Male; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014692:Ventilation-Perfusion Ratio