Diagnostic criteria for the determination of clinically significant internal carotid artery stenosis using duplex ultrasound
| Autor: | Karel Gorican, Miroslav Chochola, Miroslav Kocik, Ales Zak |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Biomedical Papers, Vol 164, Iss 3, Pp 255-260 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1213-8118 1804-7521 |
| DOI: | 10.5507/bp.2019.029 |
| Popis: | Background: Carotid endarterectomy is beneficial in symptomatic patients with ≥70% stenosis at the bifurcation of the internal carotid artery. The fact that the duplex ultrasound is widely used, inexpensive and non-invasive for examination of the carotid arteries underlines the importance of high accuracy of this method for grading internal artery stenosis. Patients and Methods: Duplex scans and arteriograms of carotid arteries of 142 patients were reviewed. Peak and end-diastolic velocities of the common and internal carotid arteries were recorded, and the percent stenosis of the internal carotid artery was determined by arteriogram. Receiver-operator characteristic curves of sensitivity, specificity, positive and negative predictive values and accuracy were determined. Results: The recommended criteria for the detection of ≥70% stenosis of the internal carotid artery were: peak systolic velocity in the internal carotid artery ≥215 cm/s, end-diastolic velocity in the internal carotid artery ≥65 cm/s, ratio of peak systolic velocities in the internal and common carotid arteries ≥2.7 and ratio of the end-diastolic velocities of the internal and common carotid arteries ≥3.7. Conclusion: These criteria allow for reliable determination of internal carotid artery stenosis ≥70% by duplex ultrasound. |
| Databáze: | Directory of Open Access Journals |
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