1.What is high energy focused ultrasound treatment for tumor? High-energy focused ultrasound therapy, abbreviated as HIFU, makes use of the advantages of ultrasound with large penetration depth, strong pointing, good focusing and fatty tissue without heat, etc. It adopts hundreds of beams of ultrasound emitted outside the body, focuses and acts directly on tumor tissues in vivo, and the high temperature in the focal area can reach 70~100℃, so that tumor cells are killed in a very short instant. (1) It does not require surgical exposure or puncture mediation, no incision, no bleeding, no pain, no radiation, no emission line pollution, simple protection, highly safe and reliable. (2) The lethal dose is uniformly distributed in the target area, so that the tumor tissue in the area is completely damaged. (3) Conformal treatment, according to the size and shape of the solid tumor, completely destroys the tumor without damaging the normal tissues around the target area, without surgical complications. In the treatment, by computerized three-dimensional conformal planning, mechanical B-ultrasonic guidance and computer-controlled automatic starting point, thermal killing is basically without missing. (4) The treatment of selective destruction of tumor blood vessels, only destroying the blood vessels below 2mm in the tumor, effectively ensuring the safety of treatment. (5) It is mainly applied to solid tumors of abdominal cavity and pelvis, especially for patients who are not suitable for surgery, or postoperative abdominal and pelvic recurrence. This is an effective treatment method. And it can preserve the function of the tumor site as much as possible while treating the tumor, which greatly improves the quality of life of patients. (6) It has a sensitizing and synergistic effect on improving the tolerance of the body and the sensitivity of tumor to radiotherapy. 2.Does high-energy focused ultrasound therapy have any side effects? High-energy focused ultrasound therapy can instantly heat up the tumor to 70-100℃ and kill cancer cells within 0.25-0.1 seconds. This ultrasound is only focused on the solid part of tumor, while no focusing occurs to other tissues and is dispersed, so there is usually no trauma to normal tissues, no burning of skin, no perforation or bleeding of internal organs. What’s more, the whole treatment process is carried out under the surveillance of ultrasound to ensure that the focusing area is accurate. Therefore, high-energy focused ultrasound treatment will not have the trauma and bleeding of surgery, nor will it cause systemic reactions or side effects such as radiation and chemotherapy. On the contrary, because most of the tumor cells are killed after the treatment, it can improve the general condition of the patient, restore and improve the general condition of the patient, restore and improve the anti-tumor immunity, and achieve the purpose of treating tumor. 3.What is the efficacy of high-energy focused ultrasound treatment? For early stage tumors, high energy focused ultrasound treatment can completely kill tumor cells. High-energy focused ultrasound is controlled by electronic computer, which can kill tumor cells in the range of 100-150mm3 in a single session, like a scalpel, and can avoid cancer cell implantation and lymph node metastasis that may be caused during surgery. For middle and late stage tumors, it can kill the tumor cells in the primary foci locally, and also help to improve the treatment effect of radiotherapy and chemotherapy. If the tumor cannot be removed by surgery and is not sensitive to radiotherapy or chemotherapy, then high-energy focused ultrasound therapy can shrink or necrotize the tumor, which can help relieve the symptoms, improve the general condition of the patient, enhance the immunity of the body and the quality of life of the patient. Domestic and foreign statistics show that the efficiency is more than 90%.