Cavernous Carotid Artery Calcification and White Matter Ischemia
Lukasz S. Babiarza,
David M. Yousema,
Bruce A. Wassermana,
Colin Wub,
Warren Bilkerc and
Norman J. Beauchamp, Jr.a
a The Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins Hospital, Baltimore, MD
b The Office of Biostatistics Research, Division of Epidemiology and Clinical Applications, National Heart, Lung, and Blood Institute, Bethesda, MD
c The University of Pennsylvania School of Medicine, Department of Biostatistics and Epidemiology and Center for Clinical Epidemiology and Biostatistics, Philadelphia, PA
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FIG 1. CT calcification scores.
A, Circumferential nature of cavernous carotid artery calcification on this CT scan, filmed in a bone window, warrants a grade of 4 (360 degrees of involvement).
B, If the calcification is between 90 and 270 degrees of involvement, it is graded as a 3. The thickness of the calcification, judged by the centimeter scale, was 2 mm in this case.
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FIG 2. MR imaging white matter disease (arrows) scores. All images obtained through white matter were reviewed by using fluid-attenuated inversion recovery imaging before grades were assigned.
A, This patient was judged to have minimal disease (CHS grade 1).
B, This patients was assigned a CHS score of 4.
C, This patient was assigned a CHS score of 7.
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