Percutaneous arterial embolization (TAE) is one of the most fundamental techniques in interventional radiology, which mainly refers to the injection or delivery of embolic material into the target vessel via catheter under X-ray television fluoroscopy to occlude it and achieve the desired therapeutic goal. The accuracy and controllability of embolization are greatly enhanced by the minimally invasive, full image guidance and selective target vessel cannulation techniques, making TAE a revolutionary clinical treatment method. The conventional devices used in percutaneous vascular embolization include puncture needles, guidewires, catheters, dilators, etc. Special devices are also used to improve the accuracy of super-selective intubation, such as co-axial catheter systems and balloon obstruction catheters. The commonly used embolic substances in TAE are mainly divided into short, medium and long term embolic agents according to their embolic effects. Short-term embolic agent refers to the embolic agent can be absorbed and the blood vessel can be reopened about 48 hours after embolization, mainly including autologous blood clot, etc.; medium-term embolic agent refers to the blood vessel can be reopened about one month, mainly including gelatin sponge, etc.; long-term embolic agent refers to the embolic agent cannot be absorbed by the body or the tissue is destroyed by the embolic agent and the blood circulation cannot be restored, including iodine oil, polyvinyl alcohol (PVA), stainless steel ring, balloon anhydrous ethanol, sodium cod liver oil acid, isobutyl cyanoacrylate (IBCA), blue tissue gel (NBCA), silk thread segments, etc. When performing TAE treatment, selective arteriography must first be performed to understand the nature, size and blood supply of the lesion, and then the necessary super-selective cannulation for embolization. The main methods of embolization include low-pressure flow control method and localization method. Low-pressure flow control method is to guide the insertion of the tube into the target vessel without blocking its blood flow, and inject the embolic agent at low pressure, and the blood flow will bring the embolic agent to the distal end of the vessel to form embolization, which is commonly used for the release of granular and liquid embolic agents, such as gelatin sponge, iodized oil, etc. The localization method guides the tube to be inserted accurately into the site of the target artery to be embolized, and then delivers the embolic material to complete the local embolization, which is often used for the release of large embolic material, such as stainless steel ring, detachable balloon, etc. TAE enables embolic material to enter the target vessel in the lesion area accurately, and plays an important role in the treatment of tumors, bleeding and other vascular diseases. It is mainly used clinically in the following areas: (1) Abnormal vascular disease. Correction or restoration of abnormal hemodynamics, including arteriovenous malformations, arteriovenous fistulas, varicose veins and aneurysms. (2) Hemostasis. Including arterial bleeding such as trauma or postoperative visceral bleeding, hemoptysis, vomiting, nasal bleeding, etc.; and venous bleeding such as esophagogastric fundic variceal bleeding, etc. (3) Blood flow redistribution. For example, embolization of gastroduodenal artery when performing hepatic artery chemotherapy to avoid unnecessary side effects and complications during drug perfusion. (4) Treatment of tumors. Embolization can be used as a single palliative treatment or as a preoperative and postoperative adjuvant treatment. It includes various benign and malignant tumors, malignant tumors such as liver cancer, lung cancer, kidney cancer, adrenal cancer and tumors of the pelvis, maxillofacial area and limbs, etc. Benign tumors include meningioma, nasopharyngeal fibrovascular tumor, carotid bulla, giant cell tumor of bone, hepatic hemangioma, symptomatic uterine fibroid, etc. (5) Elimination of hyperfunctioning organs. Such as hypersplenism, hyperthyroidism, etc. Internal sex organ removal such as renal embolization and ectopic pregnancy. TAE treatment is often accompanied by a number of reactions and complications. Postoperative reactions are mainly manifested as post-embolization syndrome, including pain, fever, gastrointestinal reactions, etc. Possible complications of embolization include tissue necrosis due to excessive embolization, misembolization, and infection.