Abstract:Digital Subtraction angiography (DSA) is the gold standard for diagnosis and evaluation of cerebrovascular disease. It has the advantages of high sensitivity, specificity and accuracy in diagnosis of hemorrhagic stroke and ischemic stroke. In particular, DSA of the cerebral aneurysm can identify the vessel carrying the aneurysm and observe the origin, shape, position, size and neck of the aneurysm from multiple angles, cerebral aneurysm plays an important role in the selection of treatment methods and postoperative evaluation. Interventional imaging is the basis of imaging diagnosis and treatment, and high-quality interventional imaging of cerebral aneurysm is an important guide for interventional surgery, which depends on clear and real-time interventional imaging to diagnose vascular diseases, to determine the next step of examination and treatment. Therefore, the quality of interventional imaging is closely related to the success of interventional surgery. There are many factors that affect the quality of interventional imaging of cerebral aneurysm, but there are not many factors that need further study. This article will focus on the analysis of the factors affecting the quality of interventional imaging of cerebral aneurysms, and summarize the methods to improve the quality of interventional imaging of cerebral aneurysms, to improve the success rate of interventional surgery.