Lung Ventilation/Perfusion Scan Lung Ventilation/Perfusion Scan http://www.nhlbi.nih.gov/health/health-topics/topics/lvq/ lung ventilation perfusion scan Lung Ventilation/Perfusion Scan lung ventilation perfusion scan Lung Ventilation/Perfusion Scan http://www.nhlbi.nih.gov/health/health-topics/topics/lvq/ http://www.nhlbi.nih.gov/health/health-topics/topics/lvq/ Lung Ventilation/Perfusion Scan Lung Ventilation/Perfusion Scan