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Angiographic Correlation of CT Calcification in the Carotid Siphon AJNR 20:495-499, Woodcock,Jr.,R.J.,et al, 1999 See this aricle in Pubmed Article Abstract The sensitivity and specificity of CT for depicting greater than 50% angiographic stenosis in the carotid siphon were 86% and 98%, respectively, for bone windows and 100% and 0%, respectively, for brain windows. The positive predictive val ue (PPV) for a stenosis of greater than 50% as evidenced by severe calcification was 86% on bone windows and 11% on brain windows. The PPV for mild and moderate calcification on bone windows was 2.5% and 0% respectively. Severe CT calcification in the ca rotid siphon as characterized on bone windows correlates with a carotid siphon stenosis of greater than 50% as determined angiographically. Therefore, the identification of severe calcification offers a potential noninvasive method for identifying stenos is of the carotid siphon. This information may be essential in determining management and prognosis for patients with carotid bifurcation stenosis.

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(click to filter results - removes previous filter) angiography,cerebral calcification,intracranial carotid artery carotid artery calcification carotid artery stenosis carotid siphon carotid-siphon calcification carotid-siphon stenosis CAT scan CAT scan,abnormal cerebral vasculature,calcification

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