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Research ArticleBrain

Angiographic Correlation of CT Calcification in the Carotid Siphon

Richard J. Woodcock Jr, Jonas H. Goldstein, David F. Kallmes, Harry J. Cloft and C. Douglas Phillips
American Journal of Neuroradiology March 1999, 20 (3) 495-499;
Richard J. Woodcock Jr
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Jonas H. Goldstein
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David F. Kallmes
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Harry J. Cloft
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C. Douglas Phillips
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    fig 1.

    Schematic representation of CT calcification patterns. Calcification was classified as mild (thin, discontinuous); moderate (thin, continuous and thick, discontinuous); or severe (thick, continuous)

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    fig 2.

    A–D, CT patterns of calcification. 5-mm-thick axial CT scans at the level of the carotid siphon. Brain (top) and bone (bottom) windows are shown in each image.

    A, Thin, discontinuous calcification, bilaterally.

    B, Thin, continuous calcification, right side.

    C, Thick, discontinuous calcification, right side.

    D, Thick, continuous calcification, bilaterally.

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    fig 3.

    A–C, Angiographic stenoses. Digital subtraction angiograms of the intracranial circulation, lateral projections. Areas of interest are identified by the black arrows.

    A, Mild irregularity of the carotid siphon.

    B, Less than 50% diameter stenosis.

    C, Greater than 50% diameter stenosis.

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American Journal of Neuroradiology
Vol. 20, Issue 3
1 Mar 1999
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Cite this article
Richard J. Woodcock Jr, Jonas H. Goldstein, David F. Kallmes, Harry J. Cloft, C. Douglas Phillips
Angiographic Correlation of CT Calcification in the Carotid Siphon
American Journal of Neuroradiology Mar 1999, 20 (3) 495-499;

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Angiographic Correlation of CT Calcification in the Carotid Siphon
Richard J. Woodcock Jr, Jonas H. Goldstein, David F. Kallmes, Harry J. Cloft, C. Douglas Phillips
American Journal of Neuroradiology Mar 1999, 20 (3) 495-499;
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