Strauss, E B Radiographic parenchymal opacity, matching perfusion defect, and normal ventilation: a sign of pulmonary embolism? Work in progress. [electronic resource] - Radiology May 1987 - 505-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0033-8419 Standard No.: 10.1148/radiology.163.2.3562833 doi Subjects--Topical Terms: AngiographyHumansPulmonary Embolism--diagnostic imagingRadionuclide ImagingRespirationRetrospective StudiesTechnetium Tc 99m Aggregated AlbuminVentilation-Perfusion RatioXenon Radioisotopes