Interventional therapy is useful. Interventional therapy is a type of treatment that combines medical imaging and clinical treatment, and can be broadly categorized into vascular and non-vascular interventions according to the treatment modality. Vascular interventions are often referred to as stents and other treatment modalities. Under the guidance and monitoring of medical imaging, medications and devices can be accurately placed at the lesion site without causing additional harm to the patient. It can be used to treat endovascular embolization, angioplasty, stent placement, and mechanical removal of blood clots. Non-vascular interventional therapy is mainly cancer chemotherapy, biopsy, etc. It can deliver chemotherapeutic drugs into the embolized blood vessel, so as to achieve the effect of chemotherapy at the fixed site, which is more effective than ordinary chemotherapy. Interventional therapy is useful, can quickly and directly improve the symptoms, survival rate and quality of life have been significantly improved; specific treatment options can be consulted with the relevant departments specialized doctors.