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Safety of CO2- and Gadodiamide-Enhanced Angiography for the Evaluation and Percutaneous Treatment of Renal Artery Stenosis in Patients with Chronic Renal Insufficiency

David J. Spinosa1, Alan H. Matsumoto1, J. Fritz Angle1, Klaus D. Hagspiel1, Dorothy Cage1, Eric A. Bissonette2, K. G. Koenig3, C. R. Ayers3 and K. McConnell4

1 Department of Radiology, University of Virginia Health System, Lee St., Box 170, Charlottesville, VA 22908.
2 Department of Health Evaluation Sciences, University of Virginia Health System, Charlottesville, VA 22908.
3 Department of Medicine, University of Virginia Health System, Charlottesville, VA 22908.
4 Department of Medicine, Martha Jefferson Hospital, Locust Ave., Charlottesville, VA 22901.



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  		Fig. 1A. —70-year-old woman with hypertension and renal insufficiency. CO2-enhanced aortogram shows bilateral renal artery stenosis (arrows).

 


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  		Fig. 1B. —70-year-old woman with hypertension and renal insufficiency. CO2-enhanced left renal angiogram obtained after stenting of left main renal artery shows intrastent portion (arrow) of renal artery.

 


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  		Fig. 1C. —70-year-old woman with hypertension and renal insufficiency. Gadodiamide-enhanced left renal angiogram reveals widely patent stent (arrow) of left renal artery.

 


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  		Fig. 1D. —70-year-old woman with hypertension and renal insufficiency. Right CO2-enhanced angiogram shows origin of right renal artery and extent of stenosis, allowing precise stent placement.

 


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  		Fig. 1E. —70-year-old woman with hypertension and renal insufficiency. Gadodiamide-enhanced right renal artery angiogram shows widely patent right renal artery and stent (arrows).

 

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