What is high-energy ultrasound focused tumor treatment? High-energy ultrasound focused tumor treatment system, commonly known as Hefu knife, ultrasound knife, is to use the advantages of large penetration depth of ultrasound, strong pointing and good focusing performance, to gather most of the low-energy ultrasound waves, through the role of water-mediated coupling, deep inside the human tumor, instantly heating up the target tissue to 70-100 C, producing high temperature effect, mechanical effect and cavitation effect. It will cause coagulation necrosis as the main quality change of the target tissues, and lose the ability of proliferation, infiltration and metastasis, while it has little effect on the normal tissues outside the target area. The advantages of high-energy ultrasound focused tumor treatment The advantages of ultrasound focused knife treatment are that it conforms to the concept of green non-invasive treatment, no surgical incision, no ionizing radiation and radioactive contamination, no general anesthesia is required for patients, and it is suitable for early, middle and late stage patients. Another characteristic of ultrasound focused knife treatment is that its treatment principle determines the same treatment effect for benign and malignant tumors of various pathological types. Because of the adoption of ultrasound positioning and real-time dynamic monitoring in treatment, it achieves conformal treatment for different patients, so the treatment has exact destruction of tumor, high treatment efficiency, slight damage to surrounding tissues, low treatment-related complications, and because ultrasound has no dose accumulation toxicity, treatment can be repeated and patients can be treated on an outpatient basis, which is very convenient. It can be seen that ultrasound focused knife treatment is the best local treatment for tumor with the best safety at present. The HIFUNIT9000 adopted by our department is the leading high-intensity focused ultrasound tumor treatment device in China, which is an organic unification of effectiveness and safety and has been certified by SFDA and CE. Indications for high-energy focused ultrasound tumor therapy 1. uterine fibroids 2. pancreatic cancer 3. retroperitoneal tumors 4. benign and malignant breast tumors 5. bone tumors 6. soft tissue tumors 7. benign and malignant liver tumors 8. benign and malignant kidney tumors 9. benign prostatic hyperplasia or prostate cancer Contraindications for high-energy focused ultrasound tumor therapy 1. if important organs such as scar, intestine, pubic bone, intracavity cannot be avoided in the ultrasound channel 2.The built-in probe of HIFU device cannot clearly show the tumor 3.Tumor of cavernous organs 4.Tumor of central nervous system 5.Local skin infection of HIFU 6.Local skin of HIFU has received 45Gy or more radiation 7.Venous embolism or arterial wall calcification exists on the ultrasound channel 8.Patients with major organ insufficiency 9.Patients with coagulation disorder The efficacy of high energy ultrasound focused tumor therapy Efficacy At present, ultrasound focused knife treatment has been widely used in the treatment of benign and malignant tumors in the abdominopelvic cavity, such as pancreatic cancer, which can control tumor growth, effectively relieve pain and prolong survival, bringing new hope for patients with advanced pancreatic cancer. For the treatment of uterine fibroids, tumor cell inactivation: complete efficiency 74.2%, total efficiency 96.8%; coagulative necrosis: total efficiency 82.3%; fibroid shrinkage: 21.2%, 29.6%, 44.8% and 48.7% at 1, 3, 6 and 12 months after treatment, respectively; effective control of vaginal bleeding and relief of bladder compression symptoms.