How is cerebral artery stenosis diagnosed? 1.Some patients with arterial stenosis can hear a murmur through a stethoscope. 2.Color ultrasound and transcranial multispectral ultrasound of the neck vessels. 3.CT and MRI angiography. 4.Cerebral angiography. Cerebral angiography is the most reliable standard for diagnosing cerebral artery stenosis and is currently the gold standard. What are the manifestations of cerebral artery stenosis? It is mainly the manifestation of cerebral blood supply deficiency and transient ischemic attack, transient unilateral limb weakness, partial body numbness, slurred speech, blackness in one eye, aphasia; dizziness, visual rotation, nausea and vomiting, double vision, fall, transient amnesia, facial numbness, etc. The more recurrent the symptoms are, the more often they recur and the longer they last, the greater the chance of developing cerebral infarction. The symptoms are often related to the change of position, such as from lying to sitting, stirrups to standing, head low to head high, turning over and turning the head, etc. Shi Jin, Department of Neurology, Air Force General Hospital The harm of cerebral artery stenosis? 1.Causing a decrease in cerebral blood flow and a decrease in the compensatory capacity of cerebral blood flow. 2.Dislodgement of atherosclerotic plaque at the stenosis site leads to cerebral embolism. 3.Severe stenosis causes a significant reduction in cerebral blood flow and directly causes cerebral infarction. According to domestic and foreign data, for severe cerebral artery stenosis, although treated by regular medical treatment, about 1/3 of patients still have a severe stroke within 3 years.