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Calcified Carotid Atherosclerotic Plaque Is Associated Less with Ischemic Symptoms Than Is Noncalcified Plaque on MDCT

Kiran R. Nandalur1, Erol Baskurt1, Klaus D. Hagspiel1, C. Douglas Phillips1 and Christopher M. Kramer1,2

1 Department of Radiology, University of Virginia Health System, Lee St., PO Box 800170, Charlottesville, VA 22908.
2 Department of Cardiology, University of Virginia Health System, Charlottesville, VA 22908.



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  		Fig. 1. —64-year-old man with stroke. Axial CT scan of internal carotid artery with soft atherosclerotic plaque (arrow and asterisk) shows contrast-enhanced lumen. Note attenuation of plaque relative to lumen and surrounding soft tissues.

 


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  		Fig. 2. —79-year-old man with transient ischemic attack. Axial CT scan of internal carotid artery with intermediate plaque (arrow and asterisk) shows contrast-enhanced lumen.

 


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  		Fig. 3. —86-year-old asymptomatic man. Axial CT scan of internal carotid artery with calcified plaque (arrow and asterisk) shows contrast-enhanced lumen.

 


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  		Fig. 4. —Box-and-whiskers plot compares plaque morphology and plaque density in Hounsfield units on MDCT. Results of Kruskal-Wallis test are significant (p < 0.05).

 

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