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Published online before print January 28, 2005, 10.1148/radiol.2343031811
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Pulmonary Embolism: Prospective Comparison of Iso-osmolar and Low-Osmolarity Nonionic Contrast Agents for Contrast Enhancement at CT Angiography1

Justine P. Bédard, MD, Christian Blais, MD, Yves G. Patenaude, MD and Ernest Monga, PhD

1 From the Department of Radiology, Centre Hospitalier Universitaire de Sherbrooke (CHUS), 3001 12e Ave Nord, Local 2525, Sherbrooke, Quebec, Canada J1H 5N4. Received November 10, 2003; revision requested February 3, 2004; revision received April 6; accepted May 24. Address correspondence to J.P.B. (e-mail: Raddiagn-Med@USherbrooke.ca).



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  		Figure 1a. Images show template of the quality scale used in the evaluation of pulmonary arteries. (a) Artery with good to excellent enhancement (arrow). (b) Artery with enhancement that was limited but of diagnostic value (arrow). (c) Artery with enhancement that was not diagnostic (arrow).

 


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  		Figure 1b. Images show template of the quality scale used in the evaluation of pulmonary arteries. (a) Artery with good to excellent enhancement (arrow). (b) Artery with enhancement that was limited but of diagnostic value (arrow). (c) Artery with enhancement that was not diagnostic (arrow).

 


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  		Figure 1c. Images show template of the quality scale used in the evaluation of pulmonary arteries. (a) Artery with good to excellent enhancement (arrow). (b) Artery with enhancement that was limited but of diagnostic value (arrow). (c) Artery with enhancement that was not diagnostic (arrow).

 


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  		Figure 2a. Images show template of the homogeneity scale used in the evaluation of pulmonary arteries. (a) Artery assigned score 1, entirely homogeneous appearance of the vessel lumen (arrow). (b) Artery assigned score 2, dotted appearance (arrow). (c) Artery assigned score 3, streaky appearance (arrow).

 


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  		Figure 2b. Images show template of the homogeneity scale used in the evaluation of pulmonary arteries. (a) Artery assigned score 1, entirely homogeneous appearance of the vessel lumen (arrow). (b) Artery assigned score 2, dotted appearance (arrow). (c) Artery assigned score 3, streaky appearance (arrow).

 


View larger version (204K):

[in a new window]
  		Figure 2c. Images show template of the homogeneity scale used in the evaluation of pulmonary arteries. (a) Artery assigned score 1, entirely homogeneous appearance of the vessel lumen (arrow). (b) Artery assigned score 2, dotted appearance (arrow). (c) Artery assigned score 3, streaky appearance (arrow).

 




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