For patients suffering from cerebral infarction, the amount of money spent on intervention and stent placement depends on the number of stents placed and what type of stents are placed. Generally, domestic stents cost about 10,000-20,000 yuan each, and imported stents may be more expensive. Some patients may need to have more than one stent placed because of the severity of their disease and the degree of stenosis. Therefore, it is difficult to estimate the amount of money spent and it mainly depends on the patient’s condition. Some patients with cerebral infarction are suffering from heart diseases, such as rheumatic heart disease and atrial fibrillation. In such patients, heart valve lesions lead to heart thrombosis, which can cause cerebral infarction when the thrombus reaches the brain with blood. Such patients do not have cerebral infarction caused by cerebral artery stenosis, so they are not suitable for stent placement. Whether a stent should be placed or not, an imaging test should be done first to see if there is a stenosis. If there is a clear stenosis, stenting is needed to prevent the occurrence of cerebral infarction.