title: Angiographic evaluation of patients with unilateral massive perfusion defects in the lung scan.
abstract: Pulmonary embolism is an uncommon cause of a massive unilateral lung scan perfusion defect; other causes may mimic PE clinically. Angiography may, therefore, be essential for accurate diagnosis.
authors.affiliation: Department of Radiology, Medical College of Virginia, Virginia Commonwealth University, Richmond 23298.
authors.forename: S R
authors.initials: SR
authors.lastname: Cho
authors.forename: J
authors.initials: J
authors.lastname: Tisnado
authors.forename: C H
authors.initials: CH
authors.lastname: Cockrell
authors.forename: M C
authors.initials: MC
authors.lastname: Beachley
authors.forename: M J
authors.initials: MJ
authors.lastname: Fratkin
authors.forename: D A
authors.initials: DA
authors.lastname: Henry
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000002:abnormalities / Q000000981:diagnostic imaging*; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio