CT Pulmonary Angiography: A Comparative Analysis of the Utilization Patterns in Emergency Department and Hospitalized Patients Between 1998 and 2003
J. David Prologo1,
Robert C. Gilkeson1,
Mireya Diaz2 and
Joe Asaad3
1 Department of Radiology, University Hospitals of Cleveland, 11100 Euclid Ave.,
Cleveland, OH 44106.
2 Department of Biostatistics, Case Western Reserve University College of
Medicine, Cleveland, OH.
3 Case Western Reserve University College of Medicine, Cleveland, OH.

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Fig. 1. Axial image from CT pulmonary angiography performed in
67-year-old woman who presented with hypoxia and chest pain shows filling
defect in a segmental artery to right lower lobe, indicative of
thromboembolism.
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Fig. 2. Axial image from CT pulmonary angiography performed in
51-year-old man with new-onset chest pain shows unsuspected ascending aortic
dissection. This case is an example of alternative diagnosis provided by CT
pulmonary angiography.
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Copyright © 2004 by the American Roentgen Ray Society.