Abstract:
:Lung scintigrams and pulmonary angiograms of 111 patients with suspected pulmonary embolism who had matching perfusion defects and radiographic abnormalities (infiltrate, atelectasis, or effusion) were reviewed. In 14 patients perfusion defects were substantially smaller than the corresponding radiographic opacity; only 1 (7%) had pulmonary embolism. In 77 the opacities and perfusion defects were of similar size; the abnormality was due to embolism in 20 (26%). In 18 patients perfusion defects were substantially larger than the radiographic opacities and were not associated with matching ventilation abnormalities; of these, 16 (89%) had pulmonary embolism. Evaluation of the relative size of perfusion defects and radiographic abnormalities occurring in the same region improves the ability of lung scintigrams to predict pulmonary emboli.
journal_name
Radiologyjournal_title
Radiologyauthors
Biello DR,Mattar AG,Osei-Wusu A,Alderson PO,McNeil BJ,Siegel BAdoi
10.1148/133.1.189subject
Has Abstractpub_date
1979-10-01 00:00:00pages
189-94issue
1eissn
0033-8419issn
1527-1315journal_volume
133pub_type
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