Cerebral Atherosclerotic Disease is a chronic disease involving the cerebral blood supply arterial system, characterized by progressive lipid deposition, fibrous tissue proliferation and inflammatory cell infiltration.
Atherosclerotic stenosis is a major cause of ischemic stroke. The annual incidence of stroke in China is 116 to 219 per 100,000 persons, and the ischemic stroke accounts for 70%.

Acute lschemic Stroke is acute cerebral infarction, also known as “stroke”. It is a neurological dysfunction in the corresponding brain area due to degeneration and necrosis of nerve cells in the area of blood supply in the brain as a result of acute interruption of blood flow in the arterial blood vessels supplying the brain. Common etiologies and pathogenesis include atherosclerosis, cerebral embolism, arteriole occlusion, and brain diseases with definite etiology causing cerebrovascular damage, such as vasculitis and hereditary disorders.