Stenting of cerebral and carotid artery stenosis Ischemic stroke accounts for more than 70% of all strokes, and atherosclerotic stenosis of intracranial arteries is an important cause of ischemic stroke attacks in the country. Long-term hypertension, hyperlipidemia, diabetes, and smoking can lead to arterial (atherosclerosis), which in turn leads to narrowing of the corresponding arteries, thrombosis, and plaque dislodgement, causing ischemic cerebrovascular disease, which eventually leads to paralysis, aphasia, and in severe cases, inability to care for themselves. Studies have shown that for patients with severe cerebral artery stenosis with more than 50% stenosis, drug treatment is ineffective, and surgical treatment is highly invasive and has a high complication rate. Cerebral artery stenting is a minimally invasive treatment. Interventional techniques can be used to open up the stenotic vessels and restore blood flow, thus avoiding paralysis and achieving the goal of treating ischemic stroke. Interventional therapy involves a small stent that is passed through the femoral artery straight to the craniocervical region to prop up the narrowed vessel lumen for the purpose of improving cerebral blood supply and preventing stroke.