X knife is a device used in radiation therapy using three-dimensional orientation in the human body, X-ray can accurately shape by exposure to tumor growth, tumor tissue and normal tissue to form a neat edge between, as with scalpel excision of the same. X knife is also called photon knife,
chi iron, is the second developed rapidly after Gamma Knife stereotactic radiotherapy. Although called the X knife blade, but not actually seen the knife daily. X knife treatment is not a concept and surgical treatment. X knife is to make the death of tumor tissue and not directly out in vivo in vitro. Thus, X tool has the advantages of a large root, no surgery, no bleeding, no pain, no risk.
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1, Overview 2, the technical means to achieve X knife 3, which were suitable for X knife 4, the specific indication for one. Indications of head and neck II. 5 body indications, efficacy assessment 1. Necrosis of: 2. Absorption phase: 3. After? Period: 1, an overview we know, radiation oncology treatment is the most important one of the most basic means. In theory, if the radiation dose is not restricted, then the patient will be completely no kill tumor tissue. But the tumor was surrounded by normal tissue,
CHI Turbo Ceramic Flat Iron, killing the tumor will also damage normal tissue. In addition, because the location of the tumor, the patient's breathing and other reasons, difficult to locate common radiation treatment at the same time,
chi turbo flat iron,
X knife
will be part of the normal tissue to kill, but will also affect the positioning accuracy due to the tumor therapeutic effect. Therefore, how to maximize the tumor dose and minimize normal tissue radiation injury is the treatment of cancer of the key issues. The X Knife radiotherapy successfully solved this problem in general. X knife is also called photon knife, is the second developed rapidly after Gamma Knife stereotactic radiotherapy. This system consists of high-precision stereotactic radiotherapy system, linear accelerator, the collimator, CT, and the help of computer, the use of high-energy electron linear accelerator X line, through the use of high-precision three-dimensional positioning, three-dimensional treatment planning and in linear accelerator on the multi-track non-coplanar irradiation techniques such as center of rotation combined with multi-field, multi-cluster exposure to disease, focused on radiation target (tumor), the tumor lesions are lethal high dose, while the amount of surrounding normal tissues small,
chi pink dazzle hair straightener, resulting in lesions completely destroyed without harm to adjacent normal tissue effects. This high-precision stereotactic radiotherapy and gamma knife, as in the dose distribution can form a high-dose region around the lesion, clinical surgery and could not get early tumor same effect, named after surgery. 2, the technical way of achieving X X blade knife (photon knife) is a stereotactic radiotherapy technology, which is installed by different medical accelerator beam tube diameter limit, after a row in a different plane of the arc light, will produce high-energy linear accelerator X-direction from the space focus on the precise three-dimensional design of the tumor tissue, and kill tumor cells. X knife treatment is to be guided in the CT image through accurate planning TPS system, positioning system, accurate positioning and implementation. The method of irradiation, the tumor tissue and normal tissue formed between the steepness of a dose, which may be the edge of tumor tissue and normal tissue to form knife-like interface. Can be implemented with single or fractionated irradiation, to achieve maximum kill tumor cells,
cheap chi straighteners, the purpose of protecting normal tissue. So people that vividly three-dimensional X-ray radiotherapy is called This treatment technology, after years of clinical practice, has proved its safety and reliability, much attention to cancer patients. X is different from the surgical knife is different from the traditional routine treatment, it first with spiral CT or MRI, DSA and other modern imaging techniques and stereotactic techniques, the tumor in vivo three-dimensional space, the precise location, and then locate the image transferred to the computer workstation for image reconstruction, doctors can understand the tumor and surrounding normal tissue anatomy, to understand radiation in tumor and normal tissue distribution, according to a variety of information in a computer analysis of the information, choose the best angle of illumination , and the dose of irradiation direction, to better avoid the normal tissues and vital organs, and each form of radiation also harness the direction of the tumor shape,
chi pink dazzle limited edition, size, exactly the same direction to achieve three-dimensional conformal radiation, so well to avoid the normal tissues and vital organs exposed to high doses of radiation, with the traditional conventional radiotherapy and its complications, less good effect. 3, which were suitable for X to do X knife knife treatment, no anesthesia, no surgery, no pain, a treatment of 15 to 30 minutes to get out of bed after the end of treatment; effective and reliable, with few complications; more traditional conventional treatment high accuracy. X knife was first used in the treatment of intracranial tumors, with improvements in technology and clinical skills, become more sophisticated, X knife treatment indication is also increasing. Currently, X knife is mainly for the treatment of these tumors: one primary head and neck tumors, tumor location is suitable for deep, close to the functional areas, large or difficult surgery after surgery for recurrent tumors prone age and other reasons could not undergo surgery patients. Second, treatment of head and neck metastases, such as brain metastases. Third, the body of the primary tumor, including the age and other vital organ dysfunction and in patients with inoperable early stage tumors, loss of opportunities in surgery, advanced cancer patients and surgery or radiotherapy, the tumor recur after chemotherapy. Fourth, the treatment of metastatic tumor body, including lung cancer, shift, liver cancer, bone metastasis and retroperitoneal lymph node metastases and so on. Compared with the Gamma Knife, X knife indications wide. It not only benign tumors, such as intracranial arteriovenous malformations, pituitary tumors, acoustic neuroma and other benign tumors of the treatment; also be used for the treatment of brain cancer; not only used for the treatment of head tumors, tumors can also be used for body treatment; X knife treatment system combines conventional medical accelerator for radiation therapy, to achieve a multifunctional, easy to comprehensive treatment of patients. 4, the specific indication for one. Indications of head and neck 1. Vascular disease: brain arteriovenous malformation, cavernous angioma; 2. Intracranial tumors: glioma, meningioma, acoustic neuroma, pineal tumors, ependymoma, trigeminal neuroma, craniopharyngioma substantive, non-multifocal brain metastases; patients refused surgery, or lesions difficult parts of surgery can not be removed, or because of physical brain surgery age factor should not be benign or malignant tumor; 3. Head and neck tumors: nasopharyngeal carcinoma, floor of mouth cancer, oral cancer, laryngeal cancer, nasal sinus cancer, sinus cancer, orbital tumors, intraocular melanoma. II. Body Indications 1. Chest: lung cancer, mediastinal cancer, esophageal cancer, breast cancer; 2. Abdomen: liver cancer, liver cancer, pancreatic cancer, gallbladder cancer, rectal cancer, renal cancer, adrenal cancer, bladder cancer, prostate cancer, intraperitoneal, retroperitoneal tumor; 3. Gynecology: cervical cancer, endometrial cancer, ovarian cancer; 4. Residual tumor after surgery, or tumor recurrence; 5. Not sensitive to conventional radiotherapy of the tumor, or after conventional radiotherapy local tumor recurrence; 6. Control of various complications of advanced cancer; 7. With surgery, conventional radiotherapy, chemotherapy, radiotherapy combined efficiency; 8. Others: bone metastases, bone tumors, spinal tumors, soft tissue sarcoma, recurrence and metastases. 5, the effect of the assessment tool is the use of X rays to kill tumor cell destruction, in order to stop the growth or tumor shrinkage, necrosis, reduce or eliminate the oppression of the tumor and nearby structures of the whole organism, its efficacy can not be displayed performance immediately after treatment, it normally takes 3-6 months time, and the pathological changes in tumor tissue may last longer, generally three stages: 1. Necrosis of: receiving a certain dose of radiation when the tumor 3-4 weeks of organized necrosis and inflammation reflects, some patients may temporarily aggravate the symptoms, patients with obstructive hydrocephalus shunt may be necessary. 2. Absorption period: 4 weeks to 1 year after irradiation, necrosis and cell debris began to absorb, local scar begins to form. 3. After? Period: one year after irradiation, the formation of scar fully aseptic inflammation disappeared, cell debris is completely absorbed. More Atlas Atlas entry Open Category: Medicine, science and technology to improve my