Ultrasonographic characteristics of carotid and middle cerebral arteries in patients with ischemic stroke

Abstract

Atherosclerotic lesions of carotid and large cerebral vessels are an important cause of stroke, which leads to a higher risk of early recurrent ischemia than any other stroke subtype. Extra cranial ultrasound and Transcranial Dopplerography (TCD) in triplex mode is a non-invasive approach to obtaining qualitative changes in the carotid and middle cerebral arteries, and the quantitative parameters of the blood flow in them.The relationship between the nature of atherosclerotic plaque, the degree of stenosis of the internal carotid artery and the frequency of occurrence of ischemic stroke are established. Ulcerated and embologenic plaques in the carotid arteries, stenosis of the internal carotid artery more than 70% increase the risk of ischemic stroke. Hemodynamically significant stenosis of the middle cerebral artery can be diagnosed by color Doppler in more than 70% of patients with ischemic stroke.