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Corresponding Author

Mohamed Hamed Riad Abdelaty

Document Type

Original Article

Abstract

Background: One of the leading causes of death and disability is stroke. Extracranial vascular stenosis is a significant and often occurring cause of ischemic stroke.

Aim and objectives: To compare the speed and accuracy of Doppler ultrasonography (DUS) to digital subtraction angiography (DSA) to determine the degree of stenosis in the carotid and vertebral arteries.

Patients and methods: 180 patients were recruited for our study between the beginning of February 2023 and the end of October 2023 who had been admitted to the emergency room or stroke unit at Al-Azhar University Hospitals with a clinical suspicion of extracranial vascular stenosis. DUS and DSA were used on each patient to determine the stenosis grade in the internal carotid and vertebral arteries. The outcomes were contrasted.

Results: The mean age among the studied participants was 55± 6.44, with 85% being≥ 50 years, 66.7% were male, 95% were married, and 48.3% were smokers. Regarding ICA stenosis, The groups with 100% stenosis (accuracy: 100%) and 0-15% stenosis (accuracy: 82.7%) showed the highest levels of sensitivity and specificity in DUS. Moreover, DUS was the least sensitive (accuracy: 70%) in the group with 50–69% stenosis. The group with 0–49% stenosis had the highest DUS sensitivity (84.3% accuracy), while the group with 50–100% had the highest specificity (85.6% accuracy).

Conclusion: DUS may be a proper primary screening method. However, before deciding on a course of treatment, it is advised that DUS findings of 50–69% degree ICA stenosis be confirmed with additional modalities.

Keywords

Duplex Ultrasound; Digital Subtraction Angiography; Extracranial Arterial Stenosis

Subject Area

Neurology

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