title: Effect of patient position on interpretation of lung images complicated by chest radiograph opacities.
abstract: Lung images in which perfusion defects correspond to chest radiograph (CXR) opacities in size and location are generally classified as having an intermediate probability for pulmonary embolism, while those studies in which the perfusion defects are considerably smaller than the CXR opacities are classified as having a low probability for pulmonary embolism. A case is presented in which, by imaging a patient in both the erect and supine positions, the authors were able to change the interpretation of the study from intermediate probability (perfusion defect = CXR opacity) to low probability (perfusion defect less than CXR opacity).
authors.affiliation: Andre Meyer Department of Physics-Nuclear Medicine, Mt. Sinai School of Medicine, Mt. Sinai Medical Center, New York, NY 10029.
authors.forename: R W
authors.initials: RW
authors.lastname: Solomon
authors.forename: C J
authors.initials: CJ
authors.lastname: Palestro
authors.forename: C K
authors.initials: CK
authors.lastname: Kim
authors.forename: S J
authors.initials: SJ
authors.lastname: Goldsmith
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011187:Posture; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic; D011877:Radionuclide Imaging; D013667:Technetium; D013668:Technetium Tc 99m Aggregated Albumin; D016284:Technetium Tc 99m Pentetate; D014692:Ventilation-Perfusion Ratio
chemical_list: D009942:Organometallic Compounds; D013668:Technetium Tc 99m Aggregated Albumin; D013667:Technetium; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate