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Radiation therapy for cancer
Science of cancer radiotherapy is the section that looks at the effects of radiation on the behavior of cancer and tumors and also covers the scientific research in this area, and through the use of ionizing radiation. Of the science of molecular cancer two areas of application: treatment and radiosurgery.
Radiation therapy (radiotherapy termination X-ray)
Technically, the radiation therapy is one of the fastest areas of growth in the treatment of cancer in recent years. Where they were getting impressive results from new technologies and addressing the cancerous tissue with radiation and high-tech.
Areas of application of radiation therapy
Of radiation therapy can be divided into two main groups depending on the state of the disease:
Radiation therapy healing:
Used in cases where the disease is capable of addressing the full and in the light of the information available about the disease. Can be applied alone or with surgery and | or chemical treatment.
Palliative radiation therapy:
Used in difficult cases, which can eliminate the tumor completely. Where the objective is to prevent and relieve suffering and improve the quality of life of the patient, can relieve bone pain experienced by the patient treatment radiographs. And also can control the process of blood loss when subjected to the process of radiation therapy that apply to vessels of tumors. Radiation dose given in this type of radiation therapy is less than the administered dose in radiation therapy and palliative treatment period is also shorter.
What is radiation therapy?
Radiation therapy is the treatment of cancerous tissue or some non-malignant tumors X also referred to as the public-X-ray therapy aimed packets used in radiation therapy to stop the growth of cancer cells or to kill her.
Radiation therapy often applied in the treatment of cancer, the 60-80% of cancer patients in need of treatment and dose of at least one.
How is the method of treatment?
There are several factors affecting the method of treatment. The most important factors are the following:
The patient's age, general health and lifestyle, and set the stage cancer. Decision is taken after treatment to be evaluated by several doctors and the terms of reference are different.
And evaluates each patient individually, even if cancer patients are infected with the same pattern cancerous, it is planned to treat each patient, and according to its own circumstances.
How does it affect radiation therapy to the patient?
Impact beams used in radiation therapy to the (genetic material) found DNA, when DNA damage in the cell nucleus is sufficiently cell lose their ability to divide, cancer depends on the growth and begins to shrink as the dead cells in cancerous tissue does not regenerate. And consequently, it is the treatment of several types of cancer successfully. The global dose of radiation given during the session and radiation therapy to kill cells or stop their reproduction. Since that cancer cells divide more quickly than normal cells Valmaaljh Radiation kills most of these cells. Although normal cells are affected by radiation, but they could recover in a short time of time by their own repair mechanisms, and that it lacks the cancer cells. On the other hand, the number of normal cells surrounding the area treated more than a million times the number of cancer cells are dividing the total dose of radiation to smaller doses, which are given in a specific time period in addition to that, the doctors are doing their best to protect healthy tissue and to direct radiation to the affected area.
Radiosurgery (treatment without surgery and without a scalpel while bleeding is performed using beams)
The basic principle in radiosurgery is ionize a given tissue packs by high radiation energy. This process prevents damage to the normal tissue. And is involving the use of high-tech equipment such as gamma and Nayef Alsabir Nayef.
The main goal in radiosurgery (one application areas of science cancer radiotherapy) is directing several low-power packs to the affected area in order to route packets of high energy to this point only.
The goal is to shrink or kill cancer cells while resolutely high intensity is protected surrounding healthy tissue from the harmful effects of radiation.
Radiosurgery applications:
Polyphonic radiosurgery (SRS):
Which includes the goal of treatment by the coordinates are treated brain tumors through the receipt precise single dose of high-intensity radiation in session for one day, and after determining three-dimensional grid coordinates of the tumor. IGRT be used during the operation of vital importance in the real destruction of the target.
Three-dimensional radiotherapy (SRT):
When you apply radiosurgery holograms in more than one session (usually 3-5 sessions) then called the three-dimensional radiological therapy treatment. Two devices commonly used in radiosurgery: gamma Nayef high-tech and Alsabir Nayef
Nayef and gamma Alsabir Nayef are two machines for processing have been developed only for the two processors. While using gamma Nayef only in the SRC / SRT treatment of brain lesions, the Alsabir Nayef used in all pests inside and outside the brain.
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