— Focal target artery perfusion chemotherapy and embolization The treatment of malignant tumors, the first choice is surgery, followed by chemotherapy or radiotherapy, and then adjuvant comprehensive treatment. Pan Xiaoping, Department of Interventional Vascular Surgery, Wuhai People’s Hospital Surgical treatment is applicable to tumors without metastasis; radiotherapy or chemotherapy is applicable before or after surgery or when the opportunity for surgery is lost. The essence of traditional chemotherapy is intravenous chemotherapy, in which chemotherapeutic drugs are dissolved in a certain liquid (diluted about 100 to 500 times), enter the vein through the infusion tube, flow back into the heart, and then spread throughout the body through the arteries after being mixed with the venous blood of the upper and lower chambers of the heart (diluted about 500 to 1,000 times), of which only part of the highly diluted drugs enter the tumor through the relevant ductus arteriosus to play a role. It has the advantages of simple operation, low cost and can be carried out in hospitals of all levels, but also has the disadvantages of low concentration of drugs locally in the lesion, distribution of the same concentration of drugs in unrelated tissues and organs, and heavy systemic reaction. Regardless of the mode of chemotherapy, its purpose is to allow drugs to enter the lesion locally through its relevant arteries to play a role, the efficacy is proportional to the concentration of the drug, and the side effects are related to the distribution of the drug throughout the whole body of unrelated tissues and organs. Localized precision chemotherapy has always been a clinically pursued dream. The development of interventional radiology has made this dream a reality. Interventional therapy (arterial infusion chemotherapy and embolization) is the application of puncture, intubation technology, under the guidance of large X-ray TV fluoroscopic imaging machine, the catheter is precisely and selectively inserted into the target artery for blood supply of the tumor lesion, and then after the high-definition computerized digital subtraction angiography (DSA), after analyzing and diagnosing the lesion’s location, quantity, and morphology, the highly concentrated chemotherapeutic drugs are precisely and directly infused into the lesion through the catheter. After analyzing and diagnosing the number and morphology of the lesions, the highly concentrated chemotherapeutic drugs are precisely and directly infused into the lesions through the catheter, which is highly effective in killing and treating the lesions. After infusion, the tumor vascular bed is blocked with embolic agent to cut off the nutritional supply of the tumor and “starve to death” the tumor cells; the two-pronged attack of chemotherapeutic drugs and cutting off the logistic nutrient line effectively kills and destroys the tumor foci, and it is suitable for the treatment of the majority of malignant tumors in various periods and parts of the body.