title: Matched ventilation-perfusion defect from a pleural effusion: prone positioning reveals normal perfusion.
authors.affiliation: From the Department of Radiology, Section of Nuclear Medicine, Milton S. Hershey Medical Center, Penn State University, Hershey, Pennsylvania.
authors.forename: Mark
authors.initials: M
authors.lastname: Tulchinsky
authors.forename: Lucas M
authors.initials: LM
authors.lastname: DeJohn
mesh_terms: D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010996:Pleural Effusion / Q000000981:diagnostic imaging*; D016684:Prone Position; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio