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Correlations between angiography and the three types of reconstruction were very good.Axial sections correctly classified the carotid arteries in 95%of cases.In 10 carotid arteries,stenosis was not assessable by SSD and MIP because of calcifications.In the remaining carotid arteries,MIP correctly classified the degree of stenosis in 96%of cases,whereas SSD misclassified 21%of cases.Our study showed that axial images provide a reliable evaluation of carotid artery stenosis.Calcifications are limiting factors in SSD or MIP.When atherosclerotic plaques are not calcified,MIP reconstructions provide a more reliable measurement of the vascular lumen than SSD. |
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