title: Ventilation studies performed after the perfusion lung scan.
authors.forename: T D
authors.initials: TD
authors.lastname: Cradduck
authors.forename: A A
authors.initials: AA
authors.lastname: Driedger
mesh_terms: D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio