title: Combined ventilation-perfusion scintigraphy for demonstratio of pulmonary embolism.
abstract: In 34 patients with suggested pulmonary emboli, ventilation scintigraphy with 133Xe and perfusion scintigraphy with 99Tcm-labelled albumin spheres were carried out. The combined ventilation-perfusion scintigraphy had a significantly higher diagnostic specificity (1.0, confidence limit 0.69-1.0) than perfusion scintigraphy alone (0.48, 0.26-0.70). Both methods had a diagnostic sensitivity of 1.0.
mesh_terms: D006801:Humans; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011877:Radionuclide Imaging; D013667:Technetium; D014692:Ventilation-Perfusion Ratio; D014980:Xenon Radioisotopes
chemical_list: D014980:Xenon Radioisotopes; D013667:Technetium