The nervous system, also known as the central nervous system, includes the brain (cerebrum, cerebellum, medulla oblongata), spinal cord, ganglia, and peripheral nerves. It contains a special set of cerebrospinal vascular system. Most people are also accustomed to grouping the skull and spine within the nervous system. Ischemic stroke: extracranial artery stenosis intracranial artery stenosis cerebral thrombosis Hemorrhagic stroke: intracranial aneurysm intracranial vascular malformation extracranial aneurysm cerebral venous sinus thrombosis intracranial hemorrhage 1. Subretinal hemorrhage: can be secondary to severe and life-threatening cerebral arterial vasospasm. If it is the cause of cerebral aneurysm rupture, thorough aneurysm embolization treatment should be performed first. And then perform lumbar puncture cerebrospinal fluid replacement as soon as possible, or direct lumbar puncture to introduce the microcatheter of cerebral intervention into the cerebellar medullary pool, retaining the microcatheter for continuous drainage and exchange of cerebrospinal fluid to drain the bloody cerebrospinal fluid out of the body. 2, parenchymal hemorrhage: huge hematoma compressing the brain parenchyma can be treated by image guided percutaneous puncture hematoma aspiration and drainage. 3, ventricular hemorrhage: for massive hemorrhage forming intracerebroventricular clot aggregates, the ventricles can be punctured to dissolve and aspirate and drain ventricular blood accumulation. Carotid cavernous sinus fistula —- motorcycle trauma with the onset of proptosis and vision loss Spinal cord vascular malformation 1, intramedullary arteriovenous malformation: microcatheter super-selection to the feeding artery of the malformed vessel, must confirm the exclusion of the normal feeding artery of the spinal cord, and then embolize it with particles or tissue glue, Onyx glue. 2. Extramedullary intradural arteriovenous malformation: Most of them have independent feeding arteries of the malformed vessels, and embolization can be performed by microcatheter super-selection to the feeding arteries. Intractable pain (neurogenic) 1.Advanced intractable pain of malignant tumor in upper abdomen: ablative block of abdominal ganglion, image guided puncture and injection of anhydrous ethanol into both sides of abdominal aorta at the level of abdominal artery opening through abdomen or through back, sclerosis destruction of abdominal ganglion to achieve pain relief. 2.Late stage intractable pain of abdominal malignant tumor: ablative block of lumbar ganglion is performed. The lumbar sympathetic ganglion is sclerosed and destroyed to achieve pain relief by puncturing and injecting anhydrous ethanol into both sides of the second and third lumbar vertebrae level under image-guided or through the back. 3. Lower limb occlusive vasculitis intractable pain: ablative block of lumbar ganglion is performed. Image guided puncture and injection of anhydrous ethanol to both sides of the second and third lumbar vertebrae level through the abdomen or through the back, sclerosis and destruction of the lumbar sympathetic ganglion to achieve pain relief. 4.Bone nerve pain (lumbar disc herniation): puncture cutting, puncture aspiration, puncture nucleus pulposus lysis or laser vaporization treatment of prolapsed lumbar discs, and the latest technology is ozone therapy. 5, vertebral compression fracture – intractable pain: under the guidance of CT or DSA, percutaneous puncture of the vertebral body to inject bone cement for vertebroplasty. To achieve rapid pain relief, tumor elimination, reconstruction of the vertebral body and spinal stability.