Minimally invasive interventional tumor treatment: It is an emerging treatment method between surgical and medical treatment. It is performed under the guidance of highly advanced digital subtraction angiography (DSA), CT, ultrasound and other equipment. Minimally invasive and precise treatment is performed on the lesion under the guidance of imaging equipment without incision, by making tiny channels of several millimeters in diameter in the blood vessels and skin or through the body’s original ducts. Advantages: accurate positioning, less trauma, less complications, high efficacy, fast results, and repeatability. Radical treatment of early-stage tumors and effective control of mid- to late-stage tumors. It makes the traditional treatment measures more simple, safe and effective; opens up new ways to solve many difficult clinical problems. It has made some difficult or incurable diseases have new treatment methods; it has given more recovery opportunities to the majority of patients. Increasingly, it has become the first choice for elective treatment. Treatment methods include: endovascular interventions and non-vascular interventions. Endovascular intervention: Using a 1-2mm thick puncture needle, the catheter is sent to the location of the lesion by puncturing the superficial artery of the human body, and under the guidance of DSA, the catheter is injected with contrast agent to show the vascular condition of the lesion, and the lesion is treated in the vascular system. These include: arterial chemotherapy perfusion and embolization of tumors, angioplasty, and hemostatic treatment of acute and chronic blood loss. Compared with intravenous chemotherapy: intravascular intervention can deliver chemotherapeutic drugs directly to tumor blood supply arteries through catheters, which not only significantly increases drug concentration in tumor, but also reduces drug dosage, reduces drug side effects and optimizes drug delivery route (targeted chemotherapy); through blood circulation drugs can also reach the whole body, which also has the efficacy of systemic chemotherapy; moreover, intervention can embolize tumor blood supply arteries and block tumor nutrition, thus “starve the tumor”. The effect of interventional treatment for mid- to late-stage tumors can be improved by about 20% compared with traditional intravenous chemotherapy. Non-vascular intervention: Under the monitoring of imaging equipment, the method of treating the lesion by directly puncturing through the skin to the lesion or entering the lesion through the human embodied channel. These include: percutaneous perforation radiofrequency ablation, microwave ablation, argon helium knife ablation, radioactive particle implantation, percutaneous perforation minimally invasive gastrostomy, gastrointestinal stent placement, airway stent placement, biliary stent placement, intratumoral injection, tumor biopsy, vertebroplasty and so on. Compared with conventional surgery: 1.No incision is needed, only a few millimeters of skin incision is needed to complete the treatment, with little epidermal damage and beautiful appearance. 2.Most patients only need local anesthesia instead of general anesthesia, thus reducing the risk of anesthesia and making it more suitable for old and weak patients. 3.Small injury, fast recovery, no organ removal, almost no bleeding or only a few milliliters during the whole procedure, and you can walk freely one day after the operation, with satisfactory results and little impact on the normal organs of the body. 4. Repeatable treatment. Recurrence and metastasis are the basic biological behaviors of malignant tumors, and recurrence and metastasis are very common after treatment. Compared with conventional radiotherapy: radioactive 125I particles are implanted into the tumor by CT-guided puncture, which can directly irradiate the tumor at close range, achieving conformality, high efficiency, long course of treatment, and few complications, and the patient can be discharged the day after treatment, with short hospital stay. Patients do not need to go to the hospital daily for treatment. (Targeted radiotherapy). In summary, minimally invasive interventional therapy has increasingly become one of the main treatment methods for patients with a wide range of tumors (e.g. primary and metastatic liver cancer, lung cancer, gastric cancer, esophageal cancer, colorectal cancer, pancreatic cancer, biliary tract tumors, hemangioma, pelvic malignant tumors and metastases, etc.).