Interventional therapy is a method of localized treatment of lesions under the guidance of imaging equipment (DSA, CT, ultrasound, etc.) without opening an incision to expose the lesion, making a tiny channel of several millimeters in diameter in blood vessels or skin, or through the body’s original pipeline, which is a new discipline integrating diagnostic radiology and clinical therapeutics that has been rapidly developed in recent years. It is now known as one of the three pillar disciplines of clinical practice along with surgery and internal medicine. Interventional treatment is characterized by small trauma, simplicity, safety, effectiveness, few complications and significantly shorter hospital stay. For diseases requiring medical treatment, the advantages of interventional treatment are: drugs can be applied directly to the lesion, which not only can greatly increase the concentration of drugs at the lesion site, but also can greatly reduce the total amount of drugs, thus reducing drug side effects. For diseases requiring surgical treatment, the advantages of interventional treatment are: 1. It does not require an incision to expose the lesion, and generally only a few millimeters of skin incision is needed to complete the treatment, which is less traumatic and less risky. 2. Most patients only need local anesthesia instead of general anesthesia, which reduces the risk of anesthesia. 3. 4. Interventional treatment can confine the drug to the lesion site as much as possible, and reduce the side effects on the body and other organs. After interventional treatment, the efficacy of some tumors is equivalent to the effect of surgical resection. Interventional treatment can be divided into endovascular intervention and non-endovascular intervention according to the path of the device into the lesion. Endovascular interventions include: percutaneous transluminal angioplasty, vascular stent placement, thrombolytic therapy, control of bleeding (hemoptysis, gastrointestinal bleeding, trauma, hemorrhage from obstetrical and gynecological diseases, etc.), vascular malformation, arteriovenous fistula and angioma embolization treatment, inferior vena cava filter placement, arterial chemotherapy cartridge or intravenous infusion port implantation, TIPSS, tumor blood supply artery embolization and chemotherapy drug infusion, preoperative tumor vascular embolization, various types of tumor vascular embolization, and tumor blood supply artery embolization. preoperative tumor vascular embolization, various angiographic diagnoses of vascular diseases, etc. Non-vascular interventions include: various percutaneous biopsies, various non-vascular lumpectomies (including dilation and stenting of biliary, digestive, respiratory and urinary tract stenoses), solid tumor ablation (percutaneous percutaneous intratumor injection, radiofrequency and microwave ablation), tubal imaging, recanalization and mucosal plugging, cyst and abscess drainage, fistulas (stomach, bladder, etc.), interventions for disc herniation, vertebroplasty vertebroplasty, plexus block for chronic pain, etc.