title: Pulmonary atelectasis associated with relative hyperperfusion.
abstract: Perfusion is usually diminished to areas of the lung that are poorly ventilated. A case is presented which demonstrates not only preservation of perfusion, but also an apparent increase in relative perfusion to an atelectatic lobe.
authors.affiliation: Department of Radiology, Columbia-Presbyterian Medical Center, New York, NY 10032.
authors.forename: J M
authors.initials: JM
authors.lastname: Rosen
authors.forename: B M
authors.initials: BM
authors.lastname: Romney
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D009942:Organometallic Compounds; D004369:Pentetic Acid; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011652:Pulmonary Circulation; 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