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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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