Interventional embolization of cerebrovascular malformation is currently the treatment of choice for this disease, especially for intracerebral or huge lesions located in important functional areas and in particularly deep locations, intra-arterial embolization under digital subtraction can be adopted to reduce the blood supply to the malformed vascular lesion, so that the lesion disappears, is reduced or facilitates further surgical or radiological resection. I. Indications for interventional embolization of cerebrovascular malformations (1) Embolization of simple malformed vessels and supply arteries: applicable to non-functional areas, small vascular malformations, and simple lesions with only one supply artery. (2) Preoperative malformed vessel and supply artery embolization; applicable to extensive or multiple lesions with high blood flow that cannot be resected, or used before resection of extensive vascular malformations, as a preparatory procedure that can prevent postoperative hyperperfusion complications. (3) Pre-treatment before γ-knife radiotherapy. Preoperative embolization of malformed vessels to reduce the size of the malformed vessels to a certain size (less than 3 cm) after the γ knife radiation therapy. Interventional embolization treatment method of cerebrovascular malformation Specific operation method: through micro-catheter to introduce various embolic substances (real silk wire segment, NBCA, ONYX glue, etc.) into the artery of blood supply or malformation group of arteriovenous malformation, so as to eliminate the lesion or reduce the malformation group of vessels. Transarterial embolization In transarterial embolization, liquid embolization material must be used if the patient is to heal or achieve relatively long-term remission, and the liquid embolization material is introduced into the fistula, even to the proximal end of the draining vein. It is commonly used in patients in whom the venous route is difficult to reach or in whom the draining vein cannot be occluded. In general, NBCA can be embolized via arterial injection, except in the cavernous sinus area. Transvenous route embolization is safe and effective, and can be performed by visualized venous sinus embolization, non-visualized venous sinus embolization, or direct puncture filling by drilling. Any cerebral angiogram that demonstrates that the draining vein no longer drains normal brain tissue, i.e., does not have normal drainage, can be occluded, but only if the microcatheter can access the draining vein near the fistula. Direct perforation and occlusion by drilling is suitable for venous sinus occlusion, which cannot enter the draining venous sinus, or the path through the venous sinus is too long and difficult to be in place. The advantages of interventional embolization of cerebrovascular malformation (1) low erosive to the whole body. It can be performed under local anesthesia by puncturing the femoral artery at the root of the thigh and introducing the treatment catheter. (2) Less trauma to brain tissue and no craniotomy. (3) Short operation time. (4) No damage to the normal penetrating vessels around the vessels, which can reduce the complications of the procedure. Interventional embolization of cerebrovascular malformations does not play the same role for patients with different disease processes. Patients can choose the appropriate treatment modality according to their disease progress and needs. We hope you find this expert opinion on interventional embolization of cerebrovascular malformations helpful and recommend you to consult a specialist at a regular hospital.