Proceedings of the International scientific and practical conference ―New York Global Science Conference 2026‖ (May 18-20, 2026) / Publisher website: www.naukainfo.com. – New York, USA, 2026. - 322 p.

258 Ai = (I right — I left) / ((I right + I left ) / 2) * 100% [%], where: Ai — asymmetry index; I — Doppler sonography index at the sides. Results . CCARIAi had significant (r=0.3, p=0.028) positive, however weak, correlation with NIHSS score on admission, as well as ICA stenosis degree Ai (r= -0.3, p= 0.014) and ECAVdAi that significantly (r= -0.2, p= 0.029) but also weakly, however, negatively correlated with mRS on admission. The ECA TAMAX Ai also had a weak negative although significant correlation (r= -0.3, p= 0.02) with mRS on admission. Conlcusion . Although the selected carotid Doppler sonography indices asymmetry was shown to have weak correaltions with ischaemic stroke in carotid basin severity, the statistical significance of the correlation might have a potential in establishing stroke severity correlation depending on ischemic stroke side in carotid basin for ischemic stroke risk stratification and prognosis improvement. REFERENCES: 1. Abdullaiev, R. (2018). Dopplerographic Evaluation of Blood Flow Parameters in Vertebral Arteries in Patients with Cervicogenic Headache in the Presence of Uncovertebral Arthrosis. Medical Journal of Clinical Trials & Case Studies , 2(4). DOI: https://doi.org/10.23880/mjccs-16000146. 2. Abdullaiev, R., Sysun, L., Kalashnikov, V., Kostyukovskaya , A. and Abdullaiev , R. (2017). Methodical aspects of dopplerography of the main arteries in the circle of Willis. Journal of Brain and Neurology , 1(1), pp.9–13. URL: https://www.alliedacademies.org/articles/methodical-aspects-of- dopplerography-of-the-main-arteries-in-the-circle-of-willis-8863.html. 3. Abdullaiev, R.Y., Kulikova, F.I., Baibakov, V.M., Kyrychenko, A.G., 4. Zayats, I.A. and Solomenko, M.V. (2019). Dopplerometric Assessment of Cerebral Hemodynamics in Ischemic Stroke. Acta Scientific Neurology , 2(8), pp.78–81. DOI: https://doi.org/10.31080/asne.2019.02.0087.