BACKGROUND: Cardiovascular diseases (CVDs) are the medical conditions affecting heart, blood or blood vessels. Carotid artery stenosis (CAS), where the atherosclerotic plaque is formed because of response to physical or metabolic injury, may cause debilitating stroke. Duplex ultrasound (DUS) has become one of the main assessing methods for carotid diseases. CTA was found to be highly accurate for diagnosing the degree of carotid occlusion, with an overall sensitivity of 97% and specificity of 99%. Aim of the work: evaluate the results of carotid duplex evaluation of extracranial carotid circulation in comparison to CT angiography
In patients admitted to ICU with first attack of transient and non-transient cerebral insult. Methods: a prospective case serious study, was conducted on 40 ICU patients with transient and permanent neurological deficit due to carotid atherosclerosis The collected data was revised, coded, tabulated and introduced to a PC using Statistical package for Social Science Data, presented and suitable analysis was done according to the type of data obtained for each parameter. Results The overall concordance between both CDUS and CTA was 77.5% (31/40), CDUS under-estimated the degree of stenosis in 7/40 (17.5%), and over-estimated the degree of stenosis in 2/40 (5%), respectively. Concordance, and disconcordence were not associated with other parameters. There was perfect agreement regarding stenosis grades of duplex US and CT angiogram, with 100% sensitivity, 100% specificity, 100% PPV, 100% NPV and 100% accuracy. Conclusion: DCUS and CTA showed excellent agreement, while CDUS remains the first-line non-invasive imaging technique for assessment of ICA stenosis.
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