How to diagnose cerebral vascular stenosis Recurrent TIA (transient ischemic attack), and watershed cerebral infarction both suggest the possible presence of cerebral vascular stenosis. These patients may have a weakened, delayed, or even absent pulse on one side. Vascular murmurs can often be heard in the carotid bifurcation, supraclavicular fossa, orbital area, and under the back of the head. Diagnosis of cerebral stenosis is based on clinical manifestations and imaging studies. Non-invasive tests include color Doppler ultrasound, TCD, MRA, CTA, etc. When intracranial and extracranial stenosis is considered in the above tests, whole brain angiography is necessary. Whole-brain angiography is considered to be the best way to diagnose cerebrovascular disease by providing a dynamic and comprehensive view of cerebrovascular blood flow, variants, side branch compensation, Willis rings and calculating the stenosis rate. How to treat cerebrovascular stenosis The current treatment of cerebrovascular stenosis is broadly divided into three categories: 1) drug treatment; 2) surgical treatment; 3) interventional treatment. Due to the unsatisfactory effect of drug treatment and surgical treatment, and the widespread development of minimally invasive surgery in various fields, interventional treatment for cerebral stenosis has been increasingly used in clinical treatment and has a good prognosis. In recent years, with the development of neuroimaging and neurointerventional treatment. Percutaneous transluminal angioplasty (PTA) and stent implantation have been carried out successively to treat cerebral artery stenosis, and corresponding brain protection devices and methods to prevent endothelial hyperplasia after stent implantation have been developed for the complications of cerebral embolism and restenosis of such methods, making cerebrovascular interventional treatment a reality. This interventional procedure has the advantages of high success rate, low trauma, wide range of indications, low restenosis rate, and repeatability.