Neurointerventional treatment is a method to treat vascular diseases in the neck or intracranial area by puncturing through the femoral artery (or femoral vein) and using a special catheter to reach the neck or intracranial vessels. Unlike traditional craniotomy, neurointerventional treatment is one of the minimally invasive surgical methods with no craniotomy, little damage and fast recovery for patients. Besides performing cerebral and spinal cord angiography to clarify cerebral and spinal cord vascular lesions, neurointerventional therapy is mainly used for the treatment of the following cerebral and spinal cord vascular diseases: 1. Cerebral aneurysm embolization therapy A very thin microcatheter is inserted into the cerebral aneurysm, and a special very thin and soft microspring coil is placed and filled from the aneurysm cavity so that the aneurysm body is filled with the microspring coil to achieve isolation of blood flow and reduce the chance of bleeding. For aneurysms with wide necks, this can be accomplished with the aid of preventing intracranial stents or balloons (small controllable balloons). 2.Embolytic treatment of cerebral arteriovenous malformation Mainly by injecting a special glue inside the vascular malformation to occlude the arteriovenous malformation. Embolization of cerebral arteriovenous fistulae is also done by injecting a special glue at the site where the artery flows into the vein, or at the side of the vein, to make the fistula disappear. 4.Neck and intracranial artery stenosis Mainly stenosis of the beginning of the internal carotid artery, stenosis of the middle cerebral artery, stenosis of the vertebral artery or stenosis of the basilar artery. A special neck or intracranial stent is placed at the stenosis site to open up the stenosis and thicken the arterial diameter for the purpose of treatment. 5.Balloon embolization or spring-ring embolization of carotid cavernous sinus fistula Balloon embolization is preferred. It is to use a catheter with a small controlled balloon mounted on the head end, put the small balloon into the cavernous sinus and then inflate it so that the balloon compresses the fistula of the internal carotid artery. Complex carotid cavernous sinus fistulas have to be completely sky-colored cavernous sinus with a spring ring, which is expensive. 6.Diagnosis of smog disease The main role of neurointervention for smog disease is diagnosis. In addition to understanding the presence or absence of stenosis in the intracranial segment of the internal carotid artery bilaterally, it is also possible to understand the vascular supply of smog disease. 7.Diagnosis and treatment of spinal vascular malformation Spinal vascular malformation is a rare disease, which can be diagnosed by standardized spinal angiography, combined with MRI images. 8.Other Intra-arterial chemotherapy for glioma, preemptive embolization before surgery for meningioma and other tumors with rich blood supply, etc.