Interpretation of indeterminate lung scintigrams.

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

Radiology

journal_title

Radiology

authors

Biello DR,Mattar AG,Osei-Wusu A,Alderson PO,McNeil BJ,Siegel BA

doi

10.1148/133.1.189

subject

Has Abstract

pub_date

1979-10-01 00:00:00

pages

189-94

issue

1

eissn

0033-8419

issn

1527-1315

journal_volume

133

pub_type

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